# YourAITools API

> Pay-per-call x402 APIs for AI agents (USDC on Base, Polygon, Arbitrum or Solana). No signup: call, get HTTP 402, pay, retry. Or pay once for a prepaid credits pack ($1, or $5 for $5.50 of credits) and send Authorization: Bearer <key> to any paid route.

## Free tier (remote MCP)
- WebRead: Free tier: 30 calls/day (full Markdown via remote MCP, tool read_url), then $0.002 per call in USDC. https://api.youraitools.co/webread/mcp
- InjectScan: Free tier: 30 calls/day (full scans via remote MCP: scan_text, scan_url, scan_tools), then $0.003 per call in USDC (safety check only). https://api.youraitools.co/injectscan/mcp
- PayGuard: Free tier: 30 calls/day (full results via remote MCP: screen_address, screen_batch), then $0.001 per call in USDC. https://api.youraitools.co/payguard/mcp
- PkgGuard: Free tier: 30 calls/day (full results via remote MCP, up to 100 packages per scan: check_package, scan_dependencies), then $0.001 per package / $0.003 per scan in USDC (safety check only). https://api.youraitools.co/pkgguard/mcp

## Tools
- [AgentGate](https://api.youraitools.co/agentgate/): Is this AI agent registered, Active and Verified (Concordium Agent Registry)?
- [WebRead](https://api.youraitools.co/webread/): Read any public web page as clean Markdown (robots.txt-aware, SSRF-safe).
- [InjectScan](https://api.youraitools.co/injectscan/): Scan text, web pages and MCP tool definitions for prompt injection.
- [DomainCheck](https://api.youraitools.co/domaincheck/): Is this domain or email real and trustworthy?
- [PayGuard](https://api.youraitools.co/payguard/): Is this crypto address on the US Treasury OFAC SDN list?
- [PkgGuard](https://api.youraitools.co/pkgguard/): Is this dependency safe to install?
- [StackDetect](https://api.youraitools.co/stackdetect/): What is this website built with?
- [TokenVerdict](https://api.youraitools.co/tokenverdict/): Safety check for a Base ERC-20 token before an agent or app interacts with it.
- [SignCheck](https://api.youraitools.co/signcheck/): Is it safe to sign this?
- [CounterpartyCheck](https://api.youraitools.co/counterpartycheck/): Before an agent pays, approves or interacts with an address: ok / caution / block with reasons and a confidence field.
- [x402fix](https://api.youraitools.co/x402fix/): x402 endpoint doctor for sellers: point it at a paid x402 URL and get a graded A-F list of what will break payments or Bazaar / x402scan listing (402 on GET/...
- [SolVerdict](https://api.youraitools.co/solverdict/): Safety check for any Solana SPL or Token-2022 mint before an agent or app interacts with it.
- [AgentReady](https://api.youraitools.co/agentready/): Is this website ready for AI agents?
- [PerpRadar](https://api.youraitools.co/perpradar/): Perp funding radar for trading agents: funding rates normalized to 8h and APR, open interest, mark/index premium, cross-venue median and spread, cheapest ven...
- [TASignal](https://api.youraitools.co/tasignal/): Technical analysis for trading agents: RSI, MACD, EMA 20/50/200, Bollinger, ATR, ADX, stochastic, realized volatility and a descriptive bias score on 15m/1h/...
- [LeakGuard](https://api.youraitools.co/leakguard/): Stop agents leaking secrets: before text or a JSON payload goes to an LLM, tool, log or webhook, finds and redacts crypto wallet keys (BIP39 seed phrases wit...
- [SmartPerps](https://api.youraitools.co/smartperps/): Hyperliquid smart-money positioning for trading agents: what the 120 most profitable Hyperliquid traders of the last 30 days (equity >= $100k, positive month...
- [ToolPick](https://api.youraitools.co/toolpick/): Which paid API should my agent call?
- [x402 Proxy Template](https://api.youraitools.co/x402-template/): Self-serve download (zip, MIT): a Cloudflare Worker that puts an x402 paywall (USDC on Base, v2 + v1) in front of any HTTP API from one config file, with Baz...
- [Credits (prepaid packs)](https://api.youraitools.co/credits/): Prepaid credits for every tool above: one x402 payment ($1, or $5 with a 10% bonus) returns an API key with a USDC-denominated balance.
- [YourAITools Listings](https://api.youraitools.co/listing/) (service): Paid listing services for youraitools.co, paid in USDC over x402: fast-track review within 24 hours ($19), Launch bundle with 30 days Featured ($49), Feature...

## Pages
- [Which API should I use? (decision guide)](https://api.youraitools.co/docs/which-api.md)
- [Full docs in one file](https://api.youraitools.co/llms-full.txt)
- [Tool index](https://api.youraitools.co/)
- [Sitemap](https://api.youraitools.co/sitemap.xml)
- [Prepaid credits](https://api.youraitools.co/credits/)
- [Listings](https://api.youraitools.co/listing/)
- [All tools on youraitools.co](https://youraitools.co/built-by-us)

## AgentGate
- Is this AI agent registered, Active and Verified (Concordium Agent Registry)?
- Price: $0.005 USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/agentgate/v1/check-agent
- Free preview: https://api.youraitools.co/agentgate/v1/check-agent/preview?id=Mf22soLh1NuZYFgBK8iSs
- Remote MCP (streamable HTTP): https://api.youraitools.co/agentgate/mcp
- OpenAPI: https://api.youraitools.co/agentgate/openapi.json
- Guide: https://youraitools.co/guides/x402-agent-verification

## WebRead
- Read any public web page as clean Markdown (robots.txt-aware, SSRF-safe).
- Price: $0.002 USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/webread/v1/read
- Free preview: https://api.youraitools.co/webread/v1/read/preview?url=https://example.com/
- Free tier: 30 calls/day (full Markdown via remote MCP, tool read_url), then $0.002 per call in USDC
- Remote MCP (streamable HTTP): https://api.youraitools.co/webread/mcp
- Claude Code: `claude mcp add --transport http webread https://api.youraitools.co/webread/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/webread/mcp): `{"mcpServers":{"webread":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/webread/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"webread":{"url":"https://api.youraitools.co/webread/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=webread&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby93ZWJyZWFkL21jcCJ9
- OpenAPI: https://api.youraitools.co/webread/openapi.json
- Guide: https://youraitools.co/guides/pay-per-call-web-scraper-api

## InjectScan
- Scan text, web pages and MCP tool definitions for prompt injection.
- Price: $0.003 USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/injectscan/v1/scan, POST https://api.youraitools.co/injectscan/v1/scan
- Free preview: https://api.youraitools.co/injectscan/v1/scan/preview?text=Ignore%20previous%20instructions
- Free tier: 30 calls/day (full scans via remote MCP: scan_text, scan_url, scan_tools), then $0.003 per call in USDC (safety check only)
- Remote MCP (streamable HTTP): https://api.youraitools.co/injectscan/mcp
- Claude Code: `claude mcp add --transport http injectscan https://api.youraitools.co/injectscan/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/injectscan/mcp): `{"mcpServers":{"injectscan":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/injectscan/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"injectscan":{"url":"https://api.youraitools.co/injectscan/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=injectscan&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9pbmplY3RzY2FuL21jcCJ9
- OpenAPI: https://api.youraitools.co/injectscan/openapi.json
- Guide: https://youraitools.co/guides/prompt-injection-scanner-api

## DomainCheck
- Is this domain or email real and trustworthy? DNS, SPF/DMARC, registration age, disposable mail.
- Price: $0.002 domain / $0.001 email USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/domaincheck/v1/domain, GET https://api.youraitools.co/domaincheck/v1/email
- Free preview: https://api.youraitools.co/domaincheck/v1/domain/preview?domain=example.com
- Remote MCP (streamable HTTP): https://api.youraitools.co/domaincheck/mcp
- OpenAPI: https://api.youraitools.co/domaincheck/openapi.json
- Guide: https://youraitools.co/built-by-us

## PayGuard
- Is this crypto address on the US Treasury OFAC SDN list? Exact match with SDN entity, programs and list date, plus chain guess and checksum. Informational, not legal advice.
- Price: $0.001 address / $0.01 batch of 50 USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/payguard/v1/address, POST https://api.youraitools.co/payguard/v1/batch
- Free preview: https://api.youraitools.co/payguard/v1/preview?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96
- Free tier: 30 calls/day (full results via remote MCP: screen_address, screen_batch), then $0.001 per call in USDC
- Remote MCP (streamable HTTP): https://api.youraitools.co/payguard/mcp
- Claude Code: `claude mcp add --transport http payguard https://api.youraitools.co/payguard/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/payguard/mcp): `{"mcpServers":{"payguard":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/payguard/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"payguard":{"url":"https://api.youraitools.co/payguard/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=payguard&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9wYXlndWFyZC9tY3AifQ%3D%3D
- OpenAPI: https://api.youraitools.co/payguard/openapi.json
- Guide: https://youraitools.co/built-by-us

## PkgGuard
- Is this dependency safe to install? Known vulnerabilities (CVE/GHSA, severity, fixed-in) and confirmed-malicious packages for a package.json, lockfile, requirements.txt, go.mod or Cargo.lock (OSV.dev data).
- Price: $0.003 scan / $0.001 package USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: POST https://api.youraitools.co/pkgguard/v1/scan, GET https://api.youraitools.co/pkgguard/v1/package
- Free preview: https://api.youraitools.co/pkgguard/v1/preview?ecosystem=npm&name=lodash&version=4.17.15
- Free tier: 30 calls/day (full results via remote MCP, up to 100 packages per scan: check_package, scan_dependencies), then $0.001 per package / $0.003 per scan in USDC (safety check only)
- Remote MCP (streamable HTTP): https://api.youraitools.co/pkgguard/mcp
- Claude Code: `claude mcp add --transport http pkgguard https://api.youraitools.co/pkgguard/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/pkgguard/mcp): `{"mcpServers":{"pkgguard":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/pkgguard/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"pkgguard":{"url":"https://api.youraitools.co/pkgguard/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=pkgguard&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9wa2dndWFyZC9tY3AifQ%3D%3D
- OpenAPI: https://api.youraitools.co/pkgguard/openapi.json
- Guide: https://youraitools.co/built-by-us

## StackDetect
- What is this website built with? CMS, ecommerce, JS framework, hosting/CDN, analytics, ad pixels, payments, plus email provider, DNS host and verified SaaS from public DNS, with versions, confidence and evidence.
- Price: $0.003 USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/stackdetect/v1/detect, POST https://api.youraitools.co/stackdetect/v1/detect
- Free preview: https://api.youraitools.co/stackdetect/v1/preview?url=https://laravel.com
- Remote MCP (streamable HTTP): https://api.youraitools.co/stackdetect/mcp
- OpenAPI: https://api.youraitools.co/stackdetect/openapi.json
- Guide: https://youraitools.co/built-by-us

## TokenVerdict
- Safety check for a Base ERC-20 token before an agent or app interacts with it. SAFE / CAUTION / DANGER with a score: simulated buy-transfer-sell (honeypot, buy/sell tax), owner powers (mint, blacklist, pause, upgradeable, renounced), liquidity and LP burn, holder concentration, verified source and age. Shareable card at /t/<token>. SAFE is not a guarantee and not financial advice.
- Price: $0.005 lite / $0.015 quick / $0.05 deep USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/tokenverdict/v1/lite, GET https://api.youraitools.co/tokenverdict/v1/quick, GET https://api.youraitools.co/tokenverdict/v1/deep
- Free preview: https://api.youraitools.co/tokenverdict/v1/preview?token=0x532f27101965dd16442E59d40670FaF5eBB142E4
- Remote MCP (streamable HTTP): https://api.youraitools.co/tokenverdict/mcp
- OpenAPI: https://api.youraitools.co/tokenverdict/openapi.json
- Guide: https://youraitools.co/built-by-us

## SignCheck
- Is it safe to sign this? Pre-sign check for agent wallets: decodes a transaction, EIP-712 Permit / Permit2 / EIP-3009 signature, EIP-7702 delegation or x402 payment and returns SAFE / CAUTION / DANGER with reasons (unlimited or EOA approvals, setApprovalForAll, fake USDC domains, x402 overpay or wrong payTo, OFAC SDN), on-chain facts and eth_call simulation.
- Price: $0.015 full / $0.005 lite (offline) USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: POST https://api.youraitools.co/signcheck/v1/check, GET https://api.youraitools.co/signcheck/v1/check, POST https://api.youraitools.co/signcheck/v1/lite, GET https://api.youraitools.co/signcheck/v1/lite
- Free preview: https://api.youraitools.co/signcheck/v1/preview?to=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&data=0x095ea7b30000000000000000000000003c1a1e01e790cd326495631b3b38bd7068f08d6fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
- Remote MCP (streamable HTTP): https://api.youraitools.co/signcheck/mcp
- OpenAPI: https://api.youraitools.co/signcheck/openapi.json
- Guide: https://youraitools.co/built-by-us

## CounterpartyCheck
- Before an agent pays, approves or interacts with an address: ok / caution / block with reasons and a confidence field. OFAC SDN and ScamSniffer lists, wallet vs contract vs EIP-7702, verification and deployer, ENS / Basename, cross-chain (wrong-chain) check, age, recent activity and exposure, approval magnets, x402 directory presence. EVM (Base, Ethereum, Polygon, Arbitrum) and Solana. A safety check, not advice.
- Price: $0.005 lite / $0.015 quick / $0.05 full USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/counterpartycheck/v1/lite, GET https://api.youraitools.co/counterpartycheck/v1/quick, GET https://api.youraitools.co/counterpartycheck/v1/full, POST https://api.youraitools.co/counterpartycheck/v1/lite, POST https://api.youraitools.co/counterpartycheck/v1/quick, POST https://api.youraitools.co/counterpartycheck/v1/full
- Free preview: https://api.youraitools.co/counterpartycheck/v1/preview?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96&chain=ethereum
- Remote MCP (streamable HTTP): https://api.youraitools.co/counterpartycheck/mcp
- OpenAPI: https://api.youraitools.co/counterpartycheck/openapi.json
- Guide: https://youraitools.co/built-by-us

## x402fix
- x402 endpoint doctor for sellers: point it at a paid x402 URL and get a graded A-F list of what will break payments or Bazaar / x402scan listing (402 on GET/HEAD/POST, CORS, v2 header and v1 body, CAIP-2, USDC asset and EIP-712 domain, Solana feePayer, Bazaar schema, multichain drift), with paste-ready fixes, the CDP facilitator validate verdict and a generated Bazaar block. Unpaid probes only.
- Price: $0.005 lite / $0.02 check / $0.05 site USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/x402fix/v1/lite, GET https://api.youraitools.co/x402fix/v1/check, GET https://api.youraitools.co/x402fix/v1/site, POST https://api.youraitools.co/x402fix/v1/lite, POST https://api.youraitools.co/x402fix/v1/check, POST https://api.youraitools.co/x402fix/v1/site
- Free preview: https://api.youraitools.co/x402fix/v1/preview?url=https://api.youraitools.co/counterpartycheck/v1/lite
- Remote MCP (streamable HTTP): https://api.youraitools.co/x402fix/mcp
- OpenAPI: https://api.youraitools.co/x402fix/openapi.json
- Guide: https://youraitools.co/built-by-us

## SolVerdict
- Safety check for any Solana SPL or Token-2022 mint before an agent or app interacts with it. SAFE / CAUTION / DANGER with a 0-100 score for any SPL or Token-2022 mint: mint and freeze authority, Token-2022 traps (permanent delegate, transfer hook, transfer fee, default-frozen, pausable, non-transferable), metadata mutability, liquidity and 24 h buys vs sells, pump.fun bonding curve, top-holder concentration (wallets vs pools and curves), age. Never SAFE on incomplete data. Shareable card at /t/<mint>. SAFE is not a guarantee and not financial advice.
- Price: $0.005 lite / $0.02 check USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/solverdict/v1/lite, GET https://api.youraitools.co/solverdict/v1/check, POST https://api.youraitools.co/solverdict/v1/lite, POST https://api.youraitools.co/solverdict/v1/check
- Free preview: https://api.youraitools.co/solverdict/v1/preview?mint=DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263
- Remote MCP (streamable HTTP): https://api.youraitools.co/solverdict/mcp
- OpenAPI: https://api.youraitools.co/solverdict/openapi.json
- Guide: https://youraitools.co/built-by-us

## AgentReady
- Is this website ready for AI agents? 23 checks, score 0-100 and grade: robots.txt rules for 17 AI bots (GPTBot, ClaudeBot, ChatGPT-User, PerplexityBot...), WAF / bot challenges, content in the raw HTML without JavaScript, markdown, llms.txt and llms-full.txt, sitemap, JSON-LD, meta and Open Graph, OpenAPI, MCP (live initialize), A2A agent card, x402, HTTPS / HSTS and speed. The audit tier adds prioritized fixes and ready-to-paste snippets (llms.txt draft, robots.txt lines, JSON-LD, meta tags). Fail-closed: unchecked sources score 0. Shareable report at /r/<domain> and a score badge.
- Price: $0.005 lite / $0.03 audit USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/agentready/v1/lite, GET https://api.youraitools.co/agentready/v1/audit, POST https://api.youraitools.co/agentready/v1/lite, POST https://api.youraitools.co/agentready/v1/audit
- Free preview: https://api.youraitools.co/agentready/v1/preview?url=https://example.com
- Remote MCP (streamable HTTP): https://api.youraitools.co/agentready/mcp
- OpenAPI: https://api.youraitools.co/agentready/openapi.json
- Guide: https://youraitools.co/built-by-us

## PerpRadar
- Perp funding radar for trading agents: funding rates normalized to 8h and APR, open interest, mark/index premium, cross-venue median and spread, cheapest venue to be long or short and a positioning read for any asset across Hyperliquid, dYdX v4, Paradex and Aevo. Full tier: 7-day funding history with z-score, regime and carry. Scan: funding extremes and widest cross-venue spreads across the market. Read-only analytics, fail-closed. Not financial advice. Past performance does not guarantee future results.
- Price: $0.005 lite / $0.03 full / $0.02 scan USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/perpradar/v1/lite, GET https://api.youraitools.co/perpradar/v1/full, GET https://api.youraitools.co/perpradar/v1/scan, POST https://api.youraitools.co/perpradar/v1/lite, POST https://api.youraitools.co/perpradar/v1/full, POST https://api.youraitools.co/perpradar/v1/scan
- Free preview: https://api.youraitools.co/perpradar/v1/preview?symbol=BTC
- Remote MCP (streamable HTTP): https://api.youraitools.co/perpradar/mcp
- OpenAPI: https://api.youraitools.co/perpradar/openapi.json
- Guide: https://youraitools.co/built-by-us

## TASignal
- Technical analysis for trading agents: RSI, MACD, EMA 20/50/200, Bollinger, ATR, ADX, stochastic, realized volatility and a descriptive bias score on 15m/1h/4h/1d candles; historical VaR/CVaR, drawdowns, Sharpe/Sortino and ATR position sizing; rule backtests (SMA/EMA cross, RSI reversion, breakout, MACD cross) with fees, trades and equity curve. Hyperliquid candles, dYdX fallback. Read-only analytics, fail-closed. Not financial advice. Past performance does not guarantee future results.
- Price: $0.005 lite / $0.02 risk / $0.05 backtest USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/tasignal/v1/lite, GET https://api.youraitools.co/tasignal/v1/risk, GET https://api.youraitools.co/tasignal/v1/backtest, POST https://api.youraitools.co/tasignal/v1/lite, POST https://api.youraitools.co/tasignal/v1/risk, POST https://api.youraitools.co/tasignal/v1/backtest
- Free preview: https://api.youraitools.co/tasignal/v1/preview?symbol=BTC&timeframe=1h
- Remote MCP (streamable HTTP): https://api.youraitools.co/tasignal/mcp
- OpenAPI: https://api.youraitools.co/tasignal/openapi.json
- Guide: https://youraitools.co/built-by-us

## LeakGuard
- Stop agents leaking secrets: before text or a JSON payload goes to an LLM, tool, log or webhook, finds and redacts crypto wallet keys (BIP39 seed phrases with checksum, EVM and Solana private keys, WIF, xprv), API secrets (GitHub, AWS, Stripe, OpenAI, Anthropic, Slack, Telegram, npm, JWT, PEM) and PII (cards, IBAN, SSN, email, phone). The scan tier takes JSON payloads and reports which wallets a leaked key controls and whether they hold funds now on Base, Ethereum, Polygon, Arbitrum One and Solana (fail-closed: unknown, never empty). Inputs never logged or stored.
- Price: $0.005 lite / $0.02 scan USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/leakguard/v1/lite, GET https://api.youraitools.co/leakguard/v1/scan, POST https://api.youraitools.co/leakguard/v1/lite, POST https://api.youraitools.co/leakguard/v1/scan
- Free preview: https://api.youraitools.co/leakguard/v1/preview?text=deploy%20log%3A%20aws%20AKIAIOSFODNN7EXAMPLE
- Remote MCP (streamable HTTP): https://api.youraitools.co/leakguard/mcp
- OpenAPI: https://api.youraitools.co/leakguard/openapi.json
- Guide: https://youraitools.co/built-by-us

## SmartPerps
- Hyperliquid smart-money positioning for trading agents: what the 120 most profitable Hyperliquid traders of the last 30 days (equity >= $100k, positive month and all-time PnL) hold right now, per coin. Long/short trader counts and notional, net bias, 1h/4h/24h flows; entries, leverage, liquidation clusters and the top positions; a market-wide scan of the most one-sided coins; and a live profile of any Hyperliquid account. Snapshot every 5 minutes, fail-closed (stale or partial snapshots are refused, never charged). Not financial advice. Past performance does not guarantee future results.
- Price: $0.003 lite / $0.02 coin / $0.03 scan / $0.01 wallet USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/smartperps/v1/lite, GET https://api.youraitools.co/smartperps/v1/coin, GET https://api.youraitools.co/smartperps/v1/scan, GET https://api.youraitools.co/smartperps/v1/wallet, POST https://api.youraitools.co/smartperps/v1/lite, POST https://api.youraitools.co/smartperps/v1/coin, POST https://api.youraitools.co/smartperps/v1/scan, POST https://api.youraitools.co/smartperps/v1/wallet
- Free preview: https://api.youraitools.co/smartperps/v1/preview?symbol=BTC
- Remote MCP (streamable HTTP): https://api.youraitools.co/smartperps/mcp
- OpenAPI: https://api.youraitools.co/smartperps/openapi.json
- Guide: https://youraitools.co/built-by-us

## ToolPick
- Which paid API should my agent call? Searches the 36,000+ paid x402 resources on the public x402 discovery indexes and ranks them for a task by relevance, 30-day unique payers and calls, recency and price; the pick tier live-checks the top candidates (one unpaid request each) and names a best verified pick; the market tier gives sellers price quartiles, the price where buyers are and top sellers for a category. Fail-closed: stale index refused, unverified candidates never called verified. Listings are self-described by sellers; ToolPick ranks, it does not endorse.
- Price: $0.003 lite / $0.01 pick / $0.02 market USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: GET https://api.youraitools.co/toolpick/v1/lite, GET https://api.youraitools.co/toolpick/v1/pick, GET https://api.youraitools.co/toolpick/v1/market, POST https://api.youraitools.co/toolpick/v1/lite, POST https://api.youraitools.co/toolpick/v1/pick, POST https://api.youraitools.co/toolpick/v1/market
- Free preview: https://api.youraitools.co/toolpick/v1/preview?need=web%20search
- Remote MCP (streamable HTTP): https://api.youraitools.co/toolpick/mcp
- OpenAPI: https://api.youraitools.co/toolpick/openapi.json
- Guide: https://youraitools.co/built-by-us

## x402 Proxy Template
- Self-serve download (zip, MIT): a Cloudflare Worker that puts an x402 paywall (USDC on Base, v2 + v1) in front of any HTTP API from one config file, with Bazaar metadata, OpenAPI, remote + stdio MCP, quickstart and deploy guide.
- Price: $19 (one-time download) USDC on Base via x402
- Paid: GET https://api.youraitools.co/x402-template/download
- Free preview: https://api.youraitools.co/x402-template/
- OpenAPI: https://api.youraitools.co/x402-template/openapi.json
- Guide: https://youraitools.co/x402-service

## Credits (prepaid packs)
- Prepaid credits for every tool above: one x402 payment ($1, or $5 with a 10% bonus) returns an API key with a USDC-denominated balance. Send Authorization: Bearer <key> to any paid route and the call's normal price is debited, with no per-call on-chain payment. Balance, top-ups and key rotation included. Prepaid API usage only, not refundable.
- Price: $1 pack / $5 pack ($5.50 of credits) USDC on Base, Polygon, Arbitrum One or Solana via x402
- Paid: POST https://api.youraitools.co/credits/v1/pack/1, POST https://api.youraitools.co/credits/v1/pack/5
- Free preview: https://api.youraitools.co/credits/v1/preview?pack=5
- Remote MCP (streamable HTTP): https://api.youraitools.co/credits/mcp
- OpenAPI: https://api.youraitools.co/credits/openapi.json
- Guide: https://api.youraitools.co/credits/

## Services (not tools)
- YourAITools Listings: Paid listing services for youraitools.co, paid in USDC over x402: fast-track review within 24 hours ($19), Launch bundle with 30 days Featured ($49), Featured for 30 days ($29). Reviewed for legitimacy and fit; payment does not guarantee approval; rejected submissions are refunded manually in USDC. No traffic promises. $19 fast-track / $49 launch / $29 featured 30 days USDC via x402. Paid: POST https://api.youraitools.co/listing/v1/fast-track, POST https://api.youraitools.co/listing/v1/launch, POST https://api.youraitools.co/listing/v1/featured. Status: https://api.youraitools.co/listing/v1/status/<ref>. Page: https://api.youraitools.co/listing/

## Discovery
- https://api.youraitools.co/.well-known/x402
- https://api.youraitools.co/openapi.json

---

# YourAITools API: Which API should I use?

A decision guide for AI agents and the people building them: find your need, call the tool. All prices are USDC per call over x402 unless marked.

How paying works: call the paid URL with no payment and you get HTTP 402 with a PAYMENT-REQUIRED header (x402 v2) and the price. Pay in USDC on Base, Polygon, Arbitrum One or Solana with any x402 client (@x402/fetch, x402-axios, Coinbase AgentKit, x402 Python) and retry. Per call only: no signup, no subscription, no custody. Or buy prepaid credits once (https://api.youraitools.co/credits/) and send Authorization: Bearer <key>. Every tool has a free preview, an OpenAPI doc and a remote MCP server (streamable HTTP) at <tool>/mcp.

MCP client config (any tool): `{"mcpServers":{"<tool>":{"url":"https://api.youraitools.co/<tool>/mcp"}}}`

## Free tier: start without a wallet

- **PayGuard**: Free tier: 30 calls/day (full results via remote MCP: screen_address, screen_batch), then $0.001 per call in USDC. `claude mcp add --transport http payguard https://api.youraitools.co/payguard/mcp`
- **InjectScan**: Free tier: 30 calls/day (full scans via remote MCP: scan_text, scan_url, scan_tools), then $0.003 per call in USDC (safety check only). `claude mcp add --transport http injectscan https://api.youraitools.co/injectscan/mcp`
- **PkgGuard**: Free tier: 30 calls/day (full results via remote MCP, up to 100 packages per scan: check_package, scan_dependencies), then $0.001 per package / $0.003 per scan in USDC (safety check only). `claude mcp add --transport http pkgguard https://api.youraitools.co/pkgguard/mcp`
- **WebRead**: Free tier: 30 calls/day (full Markdown via remote MCP, tool read_url), then $0.002 per call in USDC. `claude mcp add --transport http webread https://api.youraitools.co/webread/mcp`

Past the free tier, each tool answers with a payment_required (402) result that points to its paid x402 route.

## Paying and signing (wallet agents)

### Before I pay or approve an address: is it OK, caution or block?
- Use: **CounterpartyCheck** (https://api.youraitools.co/counterpartycheck/)
- Endpoint: GET https://api.youraitools.co/counterpartycheck/v1/lite, $0.005. quick $0.015, full $0.05. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/counterpartycheck/v1/lite?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96&chain=ethereum&intent=pay"`
- Free preview: https://api.youraitools.co/counterpartycheck/v1/preview?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96&chain=ethereum
- MCP: https://api.youraitools.co/counterpartycheck/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_counterparty","arguments":{"address":"0x098B716B8Aaf21512996dC57EB0615e2383E2f96","chain":"ethereum","intent":"pay"}}}`

### Is this address on the OFAC SDN sanctions list?
- Use: **PayGuard** (https://api.youraitools.co/payguard/)
- Endpoint: GET https://api.youraitools.co/payguard/v1/address, $0.001. POST /v1/batch: 50 addresses for $0.01. Informational, not legal advice.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/payguard/v1/address?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96"`
- **Free tier: 30 calls/day (full results via remote MCP: screen_address, screen_batch), then $0.001 per call in USDC**
- Free preview: https://api.youraitools.co/payguard/v1/preview?address=0x098B716B8Aaf21512996dC57EB0615e2383E2f96
- MCP: https://api.youraitools.co/payguard/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"screen_address","arguments":{"address":"0x098B716B8Aaf21512996dC57EB0615e2383E2f96"}}}`
- Claude Code: `claude mcp add --transport http payguard https://api.youraitools.co/payguard/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/payguard/mcp): `{"mcpServers":{"payguard":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/payguard/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"payguard":{"url":"https://api.youraitools.co/payguard/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=payguard&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9wYXlndWFyZC9tY3AifQ%3D%3D

### Is it safe to sign this transaction, Permit/Permit2, EIP-712 or x402 payment?
- Use: **SignCheck** (https://api.youraitools.co/signcheck/)
- Endpoint: GET https://api.youraitools.co/signcheck/v1/lite, $0.005. full (live simulation) $0.015 at /v1/check. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/signcheck/v1/lite?to=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&data=0x095ea7b3..."`
- Free preview: https://api.youraitools.co/signcheck/v1/preview?to=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&data=0x095ea7b30000000000000000000000003c1a1e01e790cd326495631b3b38bd7068f08d6fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
- MCP: https://api.youraitools.co/signcheck/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_signature","arguments":{"chain":"base","tx":{"to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","data":"0x095ea7b3..."}}}}`

### Is this Base ERC-20 token a honeypot / rug before I buy or accept it?
- Use: **TokenVerdict** (https://api.youraitools.co/tokenverdict/)
- Endpoint: GET https://api.youraitools.co/tokenverdict/v1/lite, $0.005. quick $0.015, deep $0.05. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/tokenverdict/v1/lite?token=0x532f27101965dd16442E59d40670FaF5eBB142E4"`
- Free preview: https://api.youraitools.co/tokenverdict/v1/preview?token=0x532f27101965dd16442E59d40670FaF5eBB142E4
- MCP: https://api.youraitools.co/tokenverdict/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_token","arguments":{"token":"0x532f27101965dd16442E59d40670FaF5eBB142E4"}}}`

### Is this Solana SPL / Token-2022 mint safe to interact with?
- Use: **SolVerdict** (https://api.youraitools.co/solverdict/)
- Endpoint: GET https://api.youraitools.co/solverdict/v1/lite, $0.005. check $0.02. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/solverdict/v1/lite?mint=DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263"`
- Free preview: https://api.youraitools.co/solverdict/v1/preview?mint=DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263
- MCP: https://api.youraitools.co/solverdict/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_solana_token","arguments":{"mint":"DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263"}}}`

### Is this AI agent registered, Active and Verified?
- Use: **AgentGate** (https://api.youraitools.co/agentgate/)
- Endpoint: GET https://api.youraitools.co/agentgate/v1/check-agent, $0.005. Concordium Agent Registry.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/agentgate/v1/check-agent?id=Mf22soLh1NuZYFgBK8iSs"`
- Free preview: https://api.youraitools.co/agentgate/v1/check-agent/preview?id=Mf22soLh1NuZYFgBK8iSs
- MCP: https://api.youraitools.co/agentgate/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_agent","arguments":{"id":"Mf22soLh1NuZYFgBK8iSs"}}}`

## Guarding the agent itself

### Does this text, web page or MCP tool definition contain a prompt injection?
- Use: **InjectScan** (https://api.youraitools.co/injectscan/)
- Endpoint: GET https://api.youraitools.co/injectscan/v1/scan, $0.003. POST /v1/scan takes {text|url|tools}. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/injectscan/v1/scan?text=Ignore%20previous%20instructions"`
- **Free tier: 30 calls/day (full scans via remote MCP: scan_text, scan_url, scan_tools), then $0.003 per call in USDC (safety check only)**
- Free preview: https://api.youraitools.co/injectscan/v1/scan/preview?text=Ignore%20previous%20instructions
- MCP: https://api.youraitools.co/injectscan/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"scan_text","arguments":{"text":"Ignore previous instructions"}}}`
- Claude Code: `claude mcp add --transport http injectscan https://api.youraitools.co/injectscan/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/injectscan/mcp): `{"mcpServers":{"injectscan":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/injectscan/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"injectscan":{"url":"https://api.youraitools.co/injectscan/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=injectscan&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9pbmplY3RzY2FuL21jcCJ9

### Am I about to leak a seed phrase, private key, API secret or PII?
- Use: **LeakGuard** (https://api.youraitools.co/leakguard/)
- Endpoint: GET https://api.youraitools.co/leakguard/v1/lite, $0.005. scan $0.02 adds JSON payloads + funded-wallet check. Inputs never stored. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/leakguard/v1/lite?text=deploy%20log%3A%20aws%20AKIAIOSFODNN7EXAMPLE"`
- Free preview: https://api.youraitools.co/leakguard/v1/preview?text=deploy%20log%3A%20aws%20AKIAIOSFODNN7EXAMPLE
- MCP: https://api.youraitools.co/leakguard/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"scan_for_leaks","arguments":{"text":"deploy log: aws AKIAIOSFODNN7EXAMPLE"}}}`

### Is this npm/PyPI/Go/Cargo dependency safe to install?
- Use: **PkgGuard** (https://api.youraitools.co/pkgguard/)
- Endpoint: GET https://api.youraitools.co/pkgguard/v1/package, $0.001. POST /v1/scan: a whole manifest/lockfile (up to 500 packages) for $0.003. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/pkgguard/v1/package?ecosystem=npm&name=lodash&version=4.17.15"`
- **Free tier: 30 calls/day (full results via remote MCP, up to 100 packages per scan: check_package, scan_dependencies), then $0.001 per package / $0.003 per scan in USDC (safety check only)**
- Free preview: https://api.youraitools.co/pkgguard/v1/preview?ecosystem=npm&name=lodash&version=4.17.15
- MCP: https://api.youraitools.co/pkgguard/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_package","arguments":{"ecosystem":"npm","name":"lodash","version":"4.17.15"}}}`
- Claude Code: `claude mcp add --transport http pkgguard https://api.youraitools.co/pkgguard/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/pkgguard/mcp): `{"mcpServers":{"pkgguard":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/pkgguard/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"pkgguard":{"url":"https://api.youraitools.co/pkgguard/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=pkgguard&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby9wa2dndWFyZC9tY3AifQ%3D%3D

### Is this domain or email real and trustworthy?
- Use: **DomainCheck** (https://api.youraitools.co/domaincheck/)
- Endpoint: GET https://api.youraitools.co/domaincheck/v1/domain, $0.002. GET /v1/email?email=... $0.001. Safety check only.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/domaincheck/v1/domain?domain=example.com"`
- Free preview: https://api.youraitools.co/domaincheck/v1/domain/preview?domain=example.com
- MCP: https://api.youraitools.co/domaincheck/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_domain","arguments":{"domain":"example.com"}}}`

## Reading the web

### Read a web page as clean Markdown
- Use: **WebRead** (https://api.youraitools.co/webread/)
- Endpoint: GET https://api.youraitools.co/webread/v1/read, $0.002. robots.txt-aware, SSRF-safe.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/webread/v1/read?url=https://example.com/"`
- **Free tier: 30 calls/day (full Markdown via remote MCP, tool read_url), then $0.002 per call in USDC**
- Free preview: https://api.youraitools.co/webread/v1/read/preview?url=https://example.com/
- MCP: https://api.youraitools.co/webread/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"read_url","arguments":{"url":"https://example.com/"}}}`
- Claude Code: `claude mcp add --transport http webread https://api.youraitools.co/webread/mcp`
- Claude Desktop (claude_desktop_config.json, or Settings > Connectors > Add custom connector with https://api.youraitools.co/webread/mcp): `{"mcpServers":{"webread":{"command":"npx","args":["-y","mcp-remote","https://api.youraitools.co/webread/mcp"]}}}`
- Cursor (~/.cursor/mcp.json): `{"mcpServers":{"webread":{"url":"https://api.youraitools.co/webread/mcp"}}}`, one-click: cursor://anysphere.cursor-deeplink/mcp/install?name=webread&config=eyJ1cmwiOiJodHRwczovL2FwaS55b3VyYWl0b29scy5jby93ZWJyZWFkL21jcCJ9

### What is this website built with (CMS, framework, hosting, analytics)?
- Use: **StackDetect** (https://api.youraitools.co/stackdetect/)
- Endpoint: GET https://api.youraitools.co/stackdetect/v1/detect, $0.003
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/stackdetect/v1/detect?url=https://laravel.com"`
- Free preview: https://api.youraitools.co/stackdetect/v1/preview?url=https://laravel.com
- MCP: https://api.youraitools.co/stackdetect/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"detect_stack","arguments":{"url":"https://laravel.com"}}}`

### Is this website ready for AI agents (llms.txt, MCP, x402, robots)?
- Use: **AgentReady** (https://api.youraitools.co/agentready/)
- Endpoint: GET https://api.youraitools.co/agentready/v1/lite, $0.005. audit $0.03.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/agentready/v1/lite?url=https://example.com"`
- Free preview: https://api.youraitools.co/agentready/v1/preview?url=https://example.com
- MCP: https://api.youraitools.co/agentready/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"audit_website","arguments":{"url":"https://example.com"}}}`

## Trading research (read-only)

### Perp funding, open interest and cheapest venue for an asset
- Use: **PerpRadar** (https://api.youraitools.co/perpradar/)
- Endpoint: GET https://api.youraitools.co/perpradar/v1/lite, $0.005. full $0.03, scan $0.02. Not financial advice. Past performance does not guarantee future results.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/perpradar/v1/lite?symbol=BTC"`
- Free preview: https://api.youraitools.co/perpradar/v1/preview?symbol=BTC
- MCP: https://api.youraitools.co/perpradar/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"perp_positioning","arguments":{"symbol":"BTC"}}}`

### Technical indicators, risk sizing or a rule backtest for a symbol
- Use: **TASignal** (https://api.youraitools.co/tasignal/)
- Endpoint: GET https://api.youraitools.co/tasignal/v1/lite, $0.005. risk $0.02, backtest $0.05. Not financial advice. Past performance does not guarantee future results.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/tasignal/v1/lite?symbol=BTC&timeframe=1h"`
- Free preview: https://api.youraitools.co/tasignal/v1/preview?symbol=BTC&timeframe=1h
- MCP: https://api.youraitools.co/tasignal/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"ta_bias","arguments":{"symbol":"BTC","timeframe":"1h"}}}`

### What are the most profitable Hyperliquid traders holding?
- Use: **SmartPerps** (https://api.youraitools.co/smartperps/)
- Endpoint: GET https://api.youraitools.co/smartperps/v1/lite, $0.003. coin $0.02, scan $0.03, wallet $0.01. Not financial advice. Past performance does not guarantee future results.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/smartperps/v1/lite?symbol=BTC"`
- Free preview: https://api.youraitools.co/smartperps/v1/preview?symbol=BTC
- MCP: https://api.youraitools.co/smartperps/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"smart_money_bias","arguments":{"symbol":"BTC"}}}`

## Finding and selling paid APIs

### I need a paid API for a task and don't know which one
- Use: **ToolPick** (https://api.youraitools.co/toolpick/)
- Endpoint: GET https://api.youraitools.co/toolpick/v1/lite, $0.003. pick (live-verified best pick) $0.01, market (seller price quartiles) $0.02. Ranks, does not endorse.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/toolpick/v1/lite?need=web%20search"`
- Free preview: https://api.youraitools.co/toolpick/v1/preview?need=web%20search
- MCP: https://api.youraitools.co/toolpick/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"find_paid_api","arguments":{"need":"web search"}}}`

### Will my x402 endpoint work with payers and Bazaar / x402scan?
- Use: **x402fix** (https://api.youraitools.co/x402fix/)
- Endpoint: GET https://api.youraitools.co/x402fix/v1/lite, $0.005. check $0.02, site $0.05.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/x402fix/v1/lite?url=https://api.youraitools.co/counterpartycheck/v1/lite"`
- Free preview: https://api.youraitools.co/x402fix/v1/preview?url=https://api.youraitools.co/counterpartycheck/v1/lite
- MCP: https://api.youraitools.co/x402fix/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_x402_endpoint","arguments":{"url":"https://api.youraitools.co/counterpartycheck/v1/lite"}}}`

### Put an x402 paywall in front of my own API
- Use: **x402 Proxy Template** (https://api.youraitools.co/x402-template/)
- Endpoint: GET https://api.youraitools.co/x402-template/download, $19 one-time. Cloudflare Worker zip, MIT. Free preview at the landing page.
- curl (first reply is the 402 with payment terms): `curl -i "https://api.youraitools.co/x402-template/download"`
- Free preview: https://api.youraitools.co/x402-template/

## Paying less per call

### Skip the on-chain payment on every call (prepaid balance)
- Use: **Credits (prepaid packs)** (https://api.youraitools.co/credits/)
- Endpoint: POST https://api.youraitools.co/credits/v1/pack/1, $1 (or $5 for $5.50). Then send Authorization: Bearer <key> to any paid route. Not refundable.
- curl (first reply is the 402 with payment terms): `curl -i -X POST "https://api.youraitools.co/credits/v1/pack/1"`
- Free preview: https://api.youraitools.co/credits/v1/preview?pack=5
- MCP: https://api.youraitools.co/credits/mcp, tools/call `{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"credits_quote","arguments":{}}}`

## Not sure?
Ask ToolPick: `curl -i "https://api.youraitools.co/toolpick/v1/lite?need=<your task>"` ($0.003), or the free preview https://api.youraitools.co/toolpick/v1/preview?need=web%20search. It also searches other sellers' x402 APIs.

## Discovery
- Tool index: https://api.youraitools.co/ (JSON or HTML)
- All paid resources: https://api.youraitools.co/.well-known/x402
- Combined OpenAPI: https://api.youraitools.co/openapi.json
- llms.txt: https://api.youraitools.co/llms.txt, full: https://api.youraitools.co/llms-full.txt