x402 economy tools
Measured x402 ecosystem data, facilitator reliability, and live endpoint checks.
| Endpoint | https://multichain-rpc.clankerceo.workers.dev/mcp (streamable-http) |
|---|---|
| Registry version | 1.2.0 |
| Now | 6 tools · grade A (96) · pin ts_24cfe4781c791ac67834677e4d028e09 · protocol 2024-11-05 |
| First / last listed | 2026-10-28 03:57 UTC / 2026-10-28 03:57 UTC |
| Grade over time | 2026-10-28: A (96), 6 tools |
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Tools: x402_market_stats x402_check_endpoint x402_gas_price x402_facilitator_guide x402_verified_merchants x402_audit_merchant
x402_market_stats | Get measured statistics about the x402 ecosystem economy: total 30-day revenue across sampled resources, revenue concentration, revenue at a given rank, price distribution and payer concentration. Free. Use this to decide whether building or buying on x402 is worth it. params: none |
x402_check_endpoint | Check whether an x402 endpoint is alive and emits a valid HTTP 402 payment challenge, before you pay it. Free liveness check. Returns reachability, status code and whether a valid challenge was found. params: url* |
x402_gas_price | Current gas price and estimated simple-transfer cost for an EVM chain. Free preview route. Supports base, polygon, arbitrum, optimism, ethereum. params: chain |
x402_facilitator_guide | Which x402 facilitators actually settle payments, measured by probing each with a real signed EIP-3009 payload. Tells you which are keyless, which need API keys, which are testnet-only and which are unreachable. Free. Use before choosing a facilitator. params: none |
x402_verified_merchants | List x402 merchants that have been VERIFIED to accept payment — each one actually paid with real USDC on Base, with the settlement transaction hash. This is different from a liveness probe: public censuses only check whether a 402 is emitted, not whether paying works. Use this to find endpoints that will actually serve you. Free. params: none |
x402_audit_merchant | Full paid due-diligence audit of an x402 merchant: live probe, price-drift detection between advertised and actual challenge price, settlement history, unique buyer count, and on-chain verification that USDC actually reaches the payTo address. Returns PASS/CAUTION/AVOID with evidence. Costs $0.01 USDC via x402 — returns payment instructions if called without payment. params: url* |
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.