{"data":{"slug":"nsgoods-payable-preflight","name":"NSGoods Payable Preflight","description":"Signed x402 payability preflight. Before an agent pays an endpoint, one call returns whether the counterparty can actually receive the payment: verdict plus reason classification, method aware (GET and POST), Solana ATA existence checked on chain. Every response carries an EIP-191 signature verifiable offline. Free preview endpoint; paid calls from $0.005 on Base and Solana.","base_url":"https://payable.nsgoods.org","website_url":"https://payable.nsgoods.org","category":"Verification","endpoint_count":1,"min_price_usd":0.005,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-11-01T01:54:17.712Z","last_success_at":"2026-10-25T01:54:17.712Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-25T01:54:17.712Z","created_at":"2026-09-14T19:22:11.399Z","uptime":{"24h":100,"7d":99.8,"30d":99.9,"90d":99.9,"coverage":{"24h":{"daysCovered":1,"checkCount":4},"7d":{"daysCovered":7,"checkCount":537},"30d":{"daysCovered":30,"checkCount":2603},"90d":{"daysCovered":42,"checkCount":3610}}},"avg_response_time_ms":1123,"total_checks":2775,"networks":["BSE","SOL"],"networks_caip2":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","endpoints":[{"id":"38f2b9d7-4587-48b1-b7bb-986ee66c2b8d","method":"GET","path":"/payable","description":"x402 payability check: reachable + well-formed 402 + (Solana) destination-ATA existence","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-14T19:22:11.399Z","last_seen_at":"2026-10-25T01:54:17.137Z","variable_amount":false,"min_price_usd":0.005,"networks":["BSE","SOL"],"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":"0xc87a06DEE4c0E85912296002617120BBfd5EF990","max_timeout_seconds":300},{"scheme":"exact","network":"solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp","network_caip2":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset_address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_address_norm":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","asset_name":"USDC","price":"5000","price_usd":"0.0050000000","pay_to":"35tCuyL3E7M88jfhTeEaRxhrbuKFyQLWgxJQyf5QcLLe","max_timeout_seconds":300}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-24T21:33:04.778Z","input_hash":"2f3e52d5bca455e34b518c652cf249c4dfc5032b44c7a793be82dd565813810e","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":99.8,"30d":99.9,"90d":99.9},"response_p95_ms":1656,"avg_response_ms":1110,"last_checked_at":"2026-10-24T21:31:23.951Z","consecutive_failures":0,"total_checks":2759},"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":"2026-10-25T01:54:17.712Z","envelope_captured_at":"2026-09-27T15:09:31.005Z"}},"site":{"homepage":false,"openapi":true,"pricing":false,"llms_txt":false,"robots":false,"terms":false,"checked_at":"2026-10-23T20:53:27.366Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-20T18:53:04.397Z"},"economics":{"price_usd":0.005,"price_atomic":"5000","model":"flat","category_percentile":27,"stability":1,"price_max_usd":0.005,"category_percentile_max":11,"endpoint_count":1,"distinct_price_count":1},"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","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d"],"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-payable-preflight","source":"https://x402-list.com"}}