{"data":{"slug":"x402-trust-prober","name":"x402 Trust Prober","description":"Deterministic trust scoring and monitoring for the x402 ecosystem. 88k+ endpoints tracked 24/7 on Base + Solana: probe reliability, latency, spec compliance, price history, and real on-chain USDC settlement per endpoint. Paid API: per-endpoint trust score with live re-probe, bulk scoring tiers (10-500), endpoint history, similar-endpoint discovery, payment tracing, and 30-day watch subscriptions with webhook/Slack alerts. Free: trust preview, leaderboard, ecosystem report, embeddable badges. Scoring is a deterministic formula - no LLM in the loop, fully explainable.","base_url":"https://x402.fuchss.app","website_url":"https://x402.fuchss.app","category":"Verification","endpoint_count":10,"min_price_usd":0.005,"uptime_24h":100,"source":"submitted","status":"degraded","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-10-31T01:29:40.155Z","last_success_at":"2026-10-24T01:29:40.155Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-24T01:29:40.155Z","created_at":"2026-07-25T14:44:30.228Z","uptime":{"24h":100,"7d":97.7,"30d":98.4,"90d":98.8,"coverage":{"24h":{"daysCovered":1,"checkCount":4},"7d":{"daysCovered":7,"checkCount":488},"30d":{"daysCovered":30,"checkCount":2316},"90d":{"daysCovered":90,"checkCount":7664}}},"avg_response_time_ms":364,"total_checks":2487,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"36acddb9-0b96-4211-a4ef-003f2180cf14","method":"GET","path":"/v1/similar","description":"Semantically similar endpoints that currently out-score a given one on the trust score. Each carries score, grade, similarity, advertised price, and endpoint page; same-host siblings and avoid-flagged endpoints are excluded. An empty list means nothing beats the subject.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:40.125Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"45ef8e62-6acc-4045-a727-70a176c8a540","method":"GET","path":"/v1/watch-endpoint-30d","description":"Monitor one endpoint for 30 days: alerts on payTo, price, asset or network changes, 402-spec regressions, delisting, and liveness. Push to signed HTTPS webhooks or Slack/Discord URLs (max 5 each), all connection-tested before payment. Returns a one-time bearer secret; edit URLs or cancel early via bearer-authed PATCH/DELETE /v1/watch/{id}, or poll the append-only event log.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:40.097Z","variable_amount":false,"min_price_usd":0.2,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"200000","price_usd":"0.2000000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"716bcbb6-c032-4138-9f6f-66f7bb200dfa","method":"GET","path":"/v1/x402-history","description":"Raw observation history for one endpoint over 1-90 days: listing and delisting events, price and payTo changes, and probe results with status and latency. Excluded probes (rate limits, unresolved URL templates, our own resolver outages) never count as downtime. probeSummary aggregates the window.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:40.088Z","variable_amount":false,"min_price_usd":0.02,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"20000","price_usd":"0.0200000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"bd0f7320-63e3-4b29-8751-9d885a731e7c","method":"GET","path":"/v1/x402-payment-trace","description":null,"mime_type":null,"is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-08-18T11:41:09.034Z","variable_amount":false,"min_price_usd":0.011673,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"11673","price_usd":"0.0116730000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"bb514660-343d-420b-91c3-86261eeaee2e","method":"GET","path":"/v1/x402-trust","description":"Trust score (0-100, grade A-F) for any x402 endpoint, cataloged or not: 30d uptime, 402-envelope compliance, latency, age, real on-chain USDC settlement volume, and price stability, with a full auditable breakdown. Uncataloged endpoints are live-probed on first query and auto-adopted. Know before you pay.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:40.134Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"c55d64ca-7556-45c2-a2a3-0533f734e356","method":"GET","path":"/v1/x402-trust-bulk-10","description":"Score up to 10 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:39.911Z","variable_amount":false,"min_price_usd":0.045,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"45000","price_usd":"0.0450000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"bc011205-bc04-41b6-ac4f-a35b06d780c4","method":"GET","path":"/v1/x402-trust-bulk-100","description":"Score up to 100 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:40.003Z","variable_amount":false,"min_price_usd":0.325,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"325000","price_usd":"0.3250000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"fbfeaba2-4f5d-4d39-a2a4-9976a0aa4a22","method":"GET","path":"/v1/x402-trust-bulk-200","description":"Score up to 200 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:39.920Z","variable_amount":false,"min_price_usd":0.4,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"400000","price_usd":"0.4000000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"9a07ed99-56a5-4106-a00c-6de020fff325","method":"GET","path":"/v1/x402-trust-bulk-50","description":"Score up to 50 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:39.860Z","variable_amount":false,"min_price_usd":0.2,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"200000","price_usd":"0.2000000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null},{"id":"6d09dd59-9f74-440d-a970-81c89e0a71c4","method":"GET","path":"/v1/x402-trust-bulk-500","description":"Score up to 500 x402 endpoints in a single paid call. Each found result carries the FULL trust report — identical to POST /v1/x402-trust: score, grade, scoreRange, recommendation, confidence breakdown, the component/subscore breakdown, explanations, flags + flagsDetailed, advertised price, and 30-day on-chain stats — not just the scalar verdict. Cache rows older than 15 minutes are recomputed on-demand from the latest stored probes and settlements, so scores typically reflect reality within minutes. No live network re-probe is performed — for a fresh live probe use /v1/x402-trust. Per-request recompute limits apply (time + count); results include `recomputed` and `computed_at` so you can see which rows used cached vs freshly computed scores. Resources not in our observation set return `found:false`; you still pay for the batch AS LONG AS at least one resource is tracked. If NONE of the supplied resources are in our observation set the request is rejected with HTTP 400 `notCharged:true` and you are NOT charged. Duplicates are ignored.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-25T14:44:30.228Z","last_seen_at":"2026-10-24T01:29:39.791Z","variable_amount":false,"min_price_usd":0.5,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"500000","price_usd":"0.5000000000","pay_to":"0xbBECBE90F28632a9d52ed67b33b43767b8c89285","max_timeout_seconds":120}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-24T01:33:01.994Z","input_hash":"850fec66b1dd0e84ffcf8c7434c2ce688481b3b9c2854f3252a030ae93da8cc5","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":97.7,"30d":98.4,"90d":98.8},"response_p95_ms":256,"avg_response_ms":364,"last_checked_at":"2026-10-24T01:29:40.155Z","consecutive_failures":0,"total_checks":2487},"compliance":{"grade":"A","passed":14,"total":14,"checks":[{"id":"payload_captured","label":"402 payload captured","pass":true},{"id":"accepts_present","label":"accepts[] array present","pass":true},{"id":"payto_recoverable","label":"payTo address recoverable","pass":true},{"id":"payto_conformant","label":"payTo at accepts[0].payTo (conformant shape)","pass":true},{"id":"payto_shape","label":"payTo is a valid on-chain address","pass":true},{"id":"price_present","label":"atomic price declared","pass":true},{"id":"price_sane","label":"atomic price in a sane range","pass":true},{"id":"asset_declared","label":"asset (token) address declared","pass":true},{"id":"network_caip2","label":"network resolves to CAIP-2","pass":true},{"id":"scheme_declared","label":"payment scheme declared","pass":true},{"id":"transport_https","label":"served over HTTPS","pass":true},{"id":"x402_version_current","label":"declares the current x402 version (2)","pass":true},{"id":"eip712_domain_extra","label":"EIP-712 domain parameters present on every EVM entry","pass":true},{"id":"version_channel_coherent","label":"x402 v2 envelope delivered in the payment-required header","pass":true}],"pay_to_source":"payTo","pay_to_location":"accept","staleness":{"probe_failing":false,"last_success_at":"2026-10-24T01:29:40.155Z","envelope_captured_at":"2026-07-25T14:45:01.351Z"}},"site":{"homepage":true,"openapi":null,"pricing":null,"llms_txt":null,"robots":null,"terms":null,"checked_at":"2026-10-24T01:33:00.233Z"},"domain":{"age_days":157,"registrar":"CloudFlare, Inc.","free_host":false,"created_date":"2026-05-15T09:39:21.458Z","checked_at":"2026-10-19T22:53:02.015Z"},"economics":{"price_usd":0.005,"price_atomic":"5000","model":"tiered","category_percentile":27,"stability":1,"price_max_usd":0.5,"category_percentile_max":77,"endpoint_count":10,"distinct_price_count":8},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":1.886,"tx_count_30d":41,"unique_buyers_30d":9,"last_settlement_at":"2026-10-22T07:01:19Z","top_buyer_share_30d":0.9257688229056205,"top_3_buyers_share_30d":0.9628844114528102,"concentrated_volume":false,"trend_7d_vs_30d":0.10225723375246175,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-05-15T10:33:01Z","volume_usd_all_time":10.79,"tx_count_all_time":264,"median_settlement_usd_30d":0.005,"max_settlement_usd_30d":0.5,"settled_via":["coinbase"],"settled_via_detail":[{"id":"coinbase","volume_usd_30d":1.886,"tx_count_30d":41}],"shared_with_services":[],"pro_quota_share":1,"caveat":"Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.","all_time_caveat":"All-time is floored at the start of our harvest window, not the service full history."}}},"provenance":{"license":"CC-BY-4.0","attribution_required":true,"attribution":"Data: x402-list.com (CC BY 4.0)","cite_as":"https://x402-list.com/services/x402-trust-prober","source":"https://x402-list.com"}}