{"data":{"slug":"nsgoods-verifiable-x402-oracle-suite","name":"nsgoods — verifiable x402 oracle suite","description":"Signed, verifiable pay-per-call x402 oracles for AI agents, settling in USDC on Base and Solana. Every paid answer is ECDSA-signed and appended to a public, tamper-evident hash chain, so an agent can verify authenticity before trusting it. On this domain: signed Solana settlement verification and signed monitoring of any x402 endpoint (Watchdog). Free signed preview on every service.","base_url":"https://x402.nsgoods.org","website_url":"https://x402.nsgoods.org","category":"Verification","endpoint_count":2,"min_price_usd":0.01,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-10-25T04:14:14.057Z","last_success_at":"2026-10-18T04:14:14.057Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-18T04:14:14.057Z","created_at":"2026-09-02T21:17:02.504Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":15},"7d":{"daysCovered":7,"checkCount":554},"30d":{"daysCovered":30,"checkCount":2623},"90d":{"daysCovered":47,"checkCount":4070}}},"avg_response_time_ms":586,"total_checks":2703,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"f17a8c0f-a2dd-4c29-b487-64ea69a8c9a3","method":"GET","path":"/settle","description":"Did this Solana payment really arrive? Verifies that a finalized mainnet transaction credited the exact amount of a token to the payee. Signed VERIFIED, REFUTED, UNCONFIRMED or NOT_FOUND with a per field breakdown. $0.01 in USDC on Base. Free preview: GET /settle/preview","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-02T21:17:02.504Z","last_seen_at":"2026-10-18T04:14:14.044Z","variable_amount":false,"min_price_usd":0.01,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"10000","price_usd":"0.0100000000","pay_to":"0xc87a06DEE4c0E85912296002617120BBfd5EF990","max_timeout_seconds":300}]},{"id":"fec07e4b-d206-4815-beef-3a999b4a3ea2","method":"GET","path":"/watchdog/register/paid","description":"Get told when an x402 endpoint you pay breaks or changes. 30 days of signed alerts for one endpoint: unreachable, payability degraded, payTo, network or asset changed. $5 in USDC on Base. Free tier: one endpoint per verified channel.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-02T21:17:02.504Z","last_seen_at":"2026-10-18T04:14:14.038Z","variable_amount":false,"min_price_usd":5,"networks":["BSE"],"pricing":[{"scheme":"exact","network":"eip155:8453","network_caip2":"eip155:8453","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","asset_address_norm":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","asset_name":"USDC","price":"5000000","price_usd":"5.0000000000","pay_to":"0xc87a06DEE4c0E85912296002617120BBfd5EF990","max_timeout_seconds":300}]}],"assessment":{"updated_at":"2026-10-18T02:53:08.492Z","input_hash":"9df2565609a4db54398209b2d54415fc1f4a85ce7809bc666f163343fd328dfa","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":100,"90d":100},"response_p95_ms":852,"avg_response_ms":581,"last_checked_at":"2026-10-18T02:38:24.683Z","consecutive_failures":0,"total_checks":2787},"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":"2026-10-18T04:14:14.057Z","envelope_captured_at":"2026-09-02T21:18:02.636Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":true,"robots":true,"terms":true,"checked_at":"2026-10-18T02:53:07.173Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-16T01:33:25.073Z"},"economics":{"price_usd":0.01,"price_atomic":"10000","model":"tiered","category_percentile":44,"stability":1,"price_max_usd":5,"category_percentile_max":95,"endpoint_count":2,"distinct_price_count":2},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":0,"tx_count_30d":0,"unique_buyers_30d":0,"last_settlement_at":null,"top_buyer_share_30d":null,"top_3_buyers_share_30d":null,"concentrated_volume":false,"trend_7d_vs_30d":null,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":null,"volume_usd_all_time":0,"tx_count_all_time":0,"median_settlement_usd_30d":null,"max_settlement_usd_30d":null,"settled_via":[],"settled_via_detail":[],"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/nsgoods-verifiable-x402-oracle-suite","source":"https://x402-list.com"}}