GateCheck by LarryBuildsAI
One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs.
| Endpoint | https://proofbeforepay.vercel.app/gatecheck/mcp (streamable-http) |
|---|---|
| Registry version | 0.1.3 |
| Now | 6 tools · grade C (73) · pin ts_ae649747dee6bd3d341d795ad4ed3f4b · protocol 2024-11-05 |
| First / last listed | 2026-11-08 01:25 UTC / 2026-11-08 01:25 UTC |
| Grade over time | 2026-11-08: C (73), 6 tools |
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Tools: boundary_guard_check scan_x402_resource probe_x402_paid_path check_agent_tool_readiness generate_x402_launch_pack generate_trust_receipt
boundary_guard_check | Create a deterministic, read-only pre-action receipt from request, policy, and optional result evidence. Use before an agent posts, spends, lists, or writes so the decision can be audited; no external action is executed. params: nextStep, policy, request*, result |
scan_x402_resource | Read-only scan of a public API/provider URL for x402, OpenAPI, pricing, and agent-discovery metadata. Pass url, and optionally marketplace_url plus expected_resources, to get a readiness score, issues, and fixes; no private endpoints are called. params: expected_resources, marketplace_url, url* |
probe_x402_paid_path | Probe a public x402 paid endpoint without signing or paying, then parse the HTTP 402 challenge. Pass target plus optional expected network/asset/price to verify payment metadata and receive a deterministic health receipt. params: expected, method, mode, target* |
check_agent_tool_readiness | GateCheck readiness: check whether an x402/agent-facing tool is ready for agent routing, marketplace listing, and paid-path monitoring, including public agent discovery surfaces (/llms.txt, /agents.txt, /.well-known/mcp.json, /mcp). Pass target plus optional tier, marketplace_url, expected_resources, and paid_path; deep/report tiers add unpaid 402 probing when paid_path is supplied. Tiers: quick $ params: expected, expected_resources, marketplace_url, method, paid_path, target*, tier |
generate_x402_launch_pack | Generate marketplace-safe launch assets for an x402/MCP seller: listing copy, buyer FAQ, checklist, approval packet, and claim boundaries. Pass target plus optional product_name, audience, primary_use_case, marketplace_url, and paid_path; service/premium tiers include readiness evidence. Tiers: single $9, service $29, premium $49. params: audience, desired_marketplaces, expected, expected_resources, marketplace_url, method, paid_path, primary_use_case, product_name, target*, tier |
generate_trust_receipt | Generate a deterministic trust receipt from sanitized request/policy/result/payment summaries. Do not submit raw auth headers, cookies, API keys, private keys, payment signatures, payment response headers, customer prompts, customer documents, or payer-identifying evidence. params: nextStep, payment, policy, request*, result |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.