{"data":{"slug":"x402-signature-service","name":"x402-signature-service","description":"Send one PDF to one email recipient for simple electronic signature. The service emails the signer, tracks completion, and returns the completed signed PDF. Gives AI agents the missing capability to get human sign-off on contracts and NDAs: pay $0.50 USDC per request (x402 exact scheme on Base), poll a status URL with a one-time bearer token, download the signed document. SSRF-guarded document fetching, tokens stored as hashes, emails masked in logs.","base_url":"https://signx402.com","website_url":"https://signx402.com","category":"Other","endpoint_count":1,"min_price_usd":0.5,"uptime_24h":100,"source":"submitted","status":"online","verified":false,"verified_until":null,"payment_ready":true,"payment_ready_until":"2026-11-03T10:14:23.875Z","last_success_at":"2026-10-27T10:14:23.875Z","consecutive_failures":0,"check_interval_minutes":15,"last_checked_at":"2026-10-27T10:14:23.875Z","created_at":"2026-07-28T10:19:30.222Z","uptime":{"24h":100,"7d":100,"30d":100,"90d":100,"coverage":{"24h":{"daysCovered":1,"checkCount":38},"7d":{"daysCovered":7,"checkCount":547},"30d":{"daysCovered":30,"checkCount":2610},"90d":{"daysCovered":90,"checkCount":8004}}},"avg_response_time_ms":1233,"total_checks":2784,"networks":["BSE"],"networks_caip2":["eip155:8453"],"asset":"USDC","endpoints":[{"id":"1b78a621-d052-406e-beac-9da12bae08f0","method":"GET","path":"/v1/signature-requests","description":"Send one PDF to one email recipient for simple electronic signature. The service emails the signer, tracks completion, and returns the completed signed PDF. Give an AI agent the missing capability to get human sign-off: submit a contract, NDA or agreement by URL or base64, the recipient signs in the browser (powered by Documenso), and the agent polls a status URL with a one-time bearer token until the signed document is ready for download. Simple electronic signatures (SES) only — no QES/AES, no identity verification, no legal advice. Documents are processed in memory; signer emails are masked in logs.","mime_type":"application/json","is_active":true,"first_seen_at":"2026-07-28T10:19:30.222Z","last_seen_at":"2026-10-27T10:14:23.855Z","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":"0xE72b85A97A6e19413D8b80633787Eda6d6237A77","max_timeout_seconds":120}],"pay_to_divergence":null}],"pay_to_changes":[],"assessment":{"updated_at":"2026-10-27T09:23:09.456Z","input_hash":"b28e75b9a0d4953233f1b30b67e24c2185e0fc98ff598a45d0f1f89328ffcf6e","model_id":null,"prompt_version":null,"reliability":{"uptime":{"24h":100,"7d":100,"30d":100,"90d":100},"response_p95_ms":1410,"avg_response_ms":1233,"last_checked_at":"2026-10-27T09:10:26.361Z","consecutive_failures":0,"total_checks":2780},"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":"2026-10-27T10:14:23.875Z","envelope_captured_at":"2026-07-28T10:20:00.747Z"}},"site":{"homepage":true,"openapi":true,"pricing":false,"llms_txt":false,"robots":false,"terms":false,"checked_at":"2026-10-26T21:03:35.964Z"},"domain":{"age_days":94,"registrar":"Spaceship, Inc.","free_host":false,"created_date":"2026-07-19T19:27:35.000Z","checked_at":"2026-10-22T18:23:06.288Z"},"economics":{"price_usd":0.5,"price_atomic":"500000","model":"flat","category_percentile":87,"stability":1,"price_max_usd":0.5,"category_percentile_max":73,"endpoint_count":1,"distinct_price_count":1},"risk":{"level":"clean","flags":[]},"synthesis":null,"traction":{"status":"measured","volume_usd_30d":0.075,"tx_count_30d":34,"unique_buyers_30d":14,"last_settlement_at":"2026-10-26T12:02:19Z","top_buyer_share_30d":0.33333333333333337,"top_3_buyers_share_30d":0.5933333333333334,"concentrated_volume":false,"trend_7d_vs_30d":0.8285714285714286,"shared_payout":true,"shared_with":1,"measured_networks":["eip155:8453"],"first_settlement_at":"2026-07-12T01:22:09Z","volume_usd_all_time":0.945,"tx_count_all_time":179,"median_settlement_usd_30d":0.002,"max_settlement_usd_30d":0.01,"settled_via":["coinbase"],"settled_via_detail":[{"id":"coinbase","volume_usd_30d":0.15,"tx_count_30d":34}],"shared_with_services":[{"name":"DeFi Signals API","slug":"defi-signals-api"}],"pro_quota_share":0.5,"caveat":"Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.","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-signature-service","source":"https://x402-list.com"}}