{"data":{"slug":"automaton-alfa-url-health-check","name":"Automaton-Alfa URL Health Check","description":"Endpoint diagnostics sold per call over x402: HTTP status, response time, TLS certificate validity and security headers for any public URL, returned as JSON. Price 0.02 USDC on Base (eip155:8453), settled by the seller before the response is delivered. Internal and private addresses (loopback, RFC1918, link-local, CGNAT, IPv4-mapped IPv6) are refused with HTTP 400, so the endpoint cannot be used to probe private networks, and the buyer is not charged for a refusal. 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Route: GET /paid/health-check?url=https://example.com. Ideal for automated monitoring and endpoint auditing.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-09-25T22:15:06.508Z","last_seen_at":"2026-10-23T08:01:03.634Z","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":"0xf0236C0f081e901c01637d744940dC3e888c93d7","max_timeout_seconds":300}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-23T04:03:03.891Z","input_hash":"ff94dea8e51a72fce08d0deb77a1eab1aa8318cae71a5c8c1369d393c91212b9","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":98.9,"90d":98.9},"response_p95_ms":581,"avg_response_ms":543,"last_checked_at":"2026-10-23T04:00:02.939Z","consecutive_failures":0,"total_checks":2159},"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":"2026-10-23T08:01:03.642Z","envelope_captured_at":"2026-09-26T00:24:01.155Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":true,"robots":true,"terms":false,"checked_at":"2026-10-22T15:43:21.811Z"},"domain":{"age_days":null,"registrar":null,"free_host":false,"created_date":null,"checked_at":"2026-10-17T12:23:03.056Z"},"economics":{"price_usd":0.02,"price_atomic":"20000","model":"flat","category_percentile":65,"stability":1,"price_max_usd":0.02,"category_percentile_max":34,"endpoint_count":2,"distinct_price_count":1},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":0.14,"tx_count_30d":7,"unique_buyers_30d":4,"last_settlement_at":"2026-10-17T01:19:01Z","top_buyer_share_30d":0.5714285714285714,"top_3_buyers_share_30d":0.8571428571428571,"concentrated_volume":false,"trend_7d_vs_30d":0.6122448979591836,"shared_payout":false,"shared_with":0,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-09-24T00:14:55Z","volume_usd_all_time":0.14,"tx_count_all_time":7,"median_settlement_usd_30d":0.02,"max_settlement_usd_30d":0.02,"settled_via":["coinbase"],"settled_via_detail":[{"id":"coinbase","volume_usd_30d":0.14,"tx_count_30d":7}],"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/automaton-alfa-url-health-check","source":"https://x402-list.com"}}