{"openapi":"3.1.0","info":{"title":"2s — the (most) everything API","version":"1","summary":"The (most) everything API.","description":"The (most) everything API for AI agents: 575+ pay-per-call endpoints on one origin. More live, ground-truth data than any other x402 service — public records, finance & SEC filings, crypto & web3, security & CVEs, legal, medical, weather, geocoding, and B2B/EDI. A full AI gateway: chat, image, and multi-model consensus across every major model, priced per request in the 402 before you pay. And agent infrastructure with no account: wallet-scoped storage (kv/docs/vectors/files), locks, queues, scheduled callbacks, pub/sub, and watchers that push signed webhooks when the world changes. Pay per call in USDC on Base or Solana via x402 — no API keys, no signup, no subscription. The first x402 API with upto billing: on AI endpoints, authorize the quoted max and settle only your actual usage. Try before you buy: add ?trial=1 (or header X-2s-Trial: 1) to any endpoint for one free real call per endpoint per hour — no wallet needed. New endpoints land constantly.","contact":{"name":"2s","url":"https://2s.io","email":"alley@2s.io"},"x-logo":{"url":"https://2s.io/icon-512.png","altText":"2s"},"x-guidance":"Pay-per-call REST API for AI agents — hundreds of endpoints returning ground-truth data (US public records, company & legal identifiers, finance/SEC, crypto/web3, security & CVEs, medical codes, weather & geocoding, agriculture, energy, maritime, music, and more). Every endpoint is paid per call in USDC via x402 (Base or Solana) — no API key, no signup. Call any endpoint with no auth to get a 402 PaymentRequirements envelope, sign it (EIP-3009 on Base, partial SPL transfer on Solana), and retry with the PAYMENT-SIGNATURE header. Add ?trial=1 for one free real call per endpoint per hour to test before paying. To discover the right endpoint: GET https://2s.io/api/directory for the full catalog, or GET https://2s.io/api/search/endpoints?q=<natural-language task> for a ranked match. Per-call price is on each operation as x-payment-info (from $0.001). Batch up to 50 calls behind one payment via POST https://2s.io/api/batch/run."},"servers":[{"url":"https://2s.io"}],"components":{"responses":{"BadRequest":{"description":"Bad request — invalid parameters."},"PaymentRequired":{"description":"Payment required. Body contains the x402 PaymentRequirements envelope with a multi-network accepts array; the per-call price is in accepts[].amount (and on the operation as x-2s-price). Sign for whichever rail you hold USDC on (EIP-3009 for Base, partial SPL transfer for Solana) and retry with the PAYMENT-SIGNATURE header (X-PAYMENT also accepted for v1 clients).","content":{"application/json":{"schema":{"$ref":"#/components/schemas/X402PaymentRequiredV2"}}}},"MethodNotAllowed":{"description":"Method not allowed — see `Allow` header for the supported method."},"ServerError":{"description":"Internal server error."},"UpstreamError":{"description":"Upstream provider error."}},"parameters":{"TrialMode":{"name":"trial","in":"query","required":false,"description":"Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the \"X-2s-Trial: 1\" request header. Works on every endpoint.","schema":{"type":"integer","enum":[1]}}},"securitySchemes":{"x402Payment":{"type":"apiKey","in":"header","name":"PAYMENT-SIGNATURE","description":"x402 protocol v2: base64-encoded PaymentPayload. Call any paid endpoint without auth to receive a 402 with a multi-network PaymentRequirements envelope. Sign for either rail: EIP-3009 transferWithAuthorization (Base USDC) OR a partial SPL token transfer (Solana USDC). Retry with PAYMENT-SIGNATURE header. X-PAYMENT is also accepted for v1 buyer clients. See https://x402.org."}},"schemas":{"Source":{"type":"object","description":"Provenance of the data: upstream provider, source URL, and license.","properties":{"provider":{"type":"string","description":"Upstream data provider."},"url":{"type":"string","description":"Source URL or documentation link."},"license":{"type":"string","description":"License / usage terms for the data."}}},"CallMeta":{"type":"object","description":"Per-call meta envelope — endpoint id, cost, caller kind, settlement details."},"X402PaymentRequiredV2":{"type":"object","description":"x402 v2 PaymentRequired envelope. Pick any entry from accepts[], sign for that rail, retry with the PAYMENT-SIGNATURE header.","required":["x402Version","accepts"],"properties":{"x402Version":{"type":"integer","const":2},"error":{"type":"string","description":"Human-readable reason payment is required."},"resource":{"type":"string","description":"The resource URL being purchased."},"accepts":{"type":"array","description":"Payment requirement options, one per supported network (Base USDC, Solana USDC).","items":{"type":"object","required":["scheme","network","amount","asset","payTo","maxTimeoutSeconds"],"properties":{"scheme":{"type":"string","enum":["exact"]},"network":{"type":"string","description":"CAIP-2 network id, e.g. \"eip155:8453\" (Base) or \"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp\"."},"amount":{"type":"string","description":"Price in atomic asset units (USDC has 6 decimals)."},"asset":{"type":"string","description":"Asset contract address / mint."},"payTo":{"type":"string","description":"Treasury address to pay."},"maxTimeoutSeconds":{"type":"integer"},"extra":{"type":"object","description":"Rail-specific extras (EVM: EIP-712 domain name/version; Solana: feePayer).","additionalProperties":true}}}},"extensions":{"type":"object","description":"Optional discovery metadata (e.g. bazaar input/output schemas).","additionalProperties":true}}}}},"paths":{"/api/maritime/cases":{"get":{"tags":["maritime"],"summary":"US Coast Guard activity / port-state-control case history...","description":"US Coast Guard activity / port-state-control case history for a vessel, by USCG vessel id (from maritime.vessel). Returns cases newest-first with the activity id, start date, type (Boarding, Inspection, Investigation, etc.), and process status. Keyless, public-domain. The compliance/inspection record behind a vessel — use for safety and counterparty due diligence.","operationId":"maritime_cases","deprecated":false,"security":[{"x402Payment":[]}],"responses":{"200":{"description":"Normalized envelope: items = activity/PSC cases (newest first); total = case count.","content":{"application/json":{"schema":{"type":"object","required":["data","meta"],"properties":{"data":{"type":"object","properties":{"ok":{"type":"boolean","enum":[true]},"items":{"type":"array","items":{"type":"object","properties":{"activityId":{"type":"number","nullable":true},"startDate":{"type":"string","nullable":true},"type":{"type":"string","nullable":true},"status":{"type":"string","nullable":true},"statusDetail":{"type":"string","nullable":true}},"required":["activityId","startDate","type","status","statusDetail"],"additionalProperties":false}},"total":{"type":"integer","nullable":true,"description":"Total matching rows upstream; null when unknown."},"source":{"$ref":"#/components/schemas/Source"}},"required":["ok","items","total","source"],"additionalProperties":false},"meta":{"$ref":"#/components/schemas/CallMeta"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"$ref":"#/components/responses/PaymentRequired"},"405":{"$ref":"#/components/responses/MethodNotAllowed"},"500":{"$ref":"#/components/responses/ServerError"},"502":{"$ref":"#/components/responses/UpstreamError"}},"x-2s-id":"maritime.cases","x-2s-version":null,"x-2s-price":{"usd":0.0025},"x-2s-accepts":["x402"],"x-2s-response-shape":"normalized","x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.002500"},"protocols":[{"x402":{}}]},"parameters":[{"name":"vesselId","in":"query","required":true,"description":"Vessel ID.","schema":{"type":"string","pattern":"^\\d+$"}},{"$ref":"#/components/parameters/TrialMode"}]}},"/api/maritime/port":{"get":{"tags":["maritime"],"summary":"Look up world ports and terminals in the NGA World Port...","description":"Look up world ports and terminals in the NGA World Port Index (Pub 150, ~2,950 ports) by port name (partial match) and/or country (full country name, e.g. \"Japan\"). Returns matching ports with location (lat/lon, country, region), UN/LOCODE, harbor size/type and shelter, max vessel length/draft (meters), channel/anchorage/cargo-pier depths, tidal range, and chart number. Keyless, public-domain (NGA). Physical-port reference data an LLM cannot reliably recall; complements maritime.vessel (USCG vessel registry) and maritime.cases (port-state-control inspections).","operationId":"maritime_port","deprecated":false,"security":[{"x402Payment":[]}],"responses":{"200":{"description":"Normalized envelope: items = matching ports (sliced to limit); total = full match count.","content":{"application/json":{"schema":{"type":"object","required":["data","meta"],"properties":{"data":{"type":"object","properties":{"ok":{"type":"boolean","enum":[true]},"items":{"type":"array","items":{"type":"object","properties":{"portNumber":{"type":"string","nullable":true},"portName":{"type":"string","nullable":true},"countryCode":{"type":"string","nullable":true},"countryName":{"type":"string","nullable":true},"regionName":{"type":"string","nullable":true},"latitude":{"type":"number","nullable":true},"longitude":{"type":"number","nullable":true},"harborSize":{"type":"string","nullable":true},"harborType":{"type":"string","nullable":true},"shelter":{"type":"string","nullable":true},"maxVesselLengthM":{"type":"number","nullable":true},"maxVesselDraftM":{"type":"number","nullable":true},"channelDepthM":{"type":"number","nullable":true},"anchorageDepthM":{"type":"number","nullable":true},"cargoPierDepthM":{"type":"number","nullable":true},"tidalRangeM":{"type":"number","nullable":true},"unLocode":{"type":"string","nullable":true},"chartNumber":{"type":"string","nullable":true}},"required":["portNumber","portName","countryCode","countryName","regionName","latitude","longitude","harborSize","harborType","shelter","maxVesselLengthM","maxVesselDraftM","channelDepthM","anchorageDepthM","cargoPierDepthM","tidalRangeM","unLocode","chartNumber"],"additionalProperties":false}},"total":{"type":"integer","nullable":true,"description":"Total matching rows upstream; null when unknown."},"source":{"$ref":"#/components/schemas/Source"}},"required":["ok","items","total","source"],"additionalProperties":false},"meta":{"$ref":"#/components/schemas/CallMeta"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"$ref":"#/components/responses/PaymentRequired"},"405":{"$ref":"#/components/responses/MethodNotAllowed"},"500":{"$ref":"#/components/responses/ServerError"},"502":{"$ref":"#/components/responses/UpstreamError"}},"x-2s-id":"maritime.port","x-2s-version":null,"x-2s-price":{"usd":0.0025},"x-2s-accepts":["x402"],"x-2s-response-shape":"normalized","x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.002500"},"protocols":[{"x402":{}}]},"parameters":[{"name":"portName","in":"query","required":false,"description":"Port name.","schema":{"type":"string","minLength":1,"maxLength":100}},{"name":"country","in":"query","required":false,"description":"Country name or ISO country code.","schema":{"type":"string","minLength":1,"maxLength":60}},{"name":"limit","in":"query","required":false,"description":"Maximum number of results to return.","schema":{"type":"integer","minimum":1,"maximum":50}},{"$ref":"#/components/parameters/TrialMode"}]}},"/api/maritime/vessel":{"get":{"tags":["maritime"],"summary":"Look up vessels in the US Coast Guard PSIX registry by name...","description":"Look up vessels in the US Coast Guard PSIX registry by name (partial match), call sign, official number, hull number (HIN), flag country, service type, or build year. Returns matching vessels with the USCG vessel id, name, call sign, service type, build year, status, official number, HIN, and flag. Keyless, public-domain. Covers US-flagged vessels (and foreign vessels with US port-state-control activity). Pair the returned vesselId with maritime.cases for the inspection record. (Cross-references trade.locode for ports.)","operationId":"maritime_vessel","deprecated":false,"security":[{"x402Payment":[]}],"responses":{"200":{"description":"Normalized envelope: items = matching vessels; total = match count.","content":{"application/json":{"schema":{"type":"object","required":["data","meta"],"properties":{"data":{"type":"object","properties":{"ok":{"type":"boolean","enum":[true]},"items":{"type":"array","items":{"type":"object","properties":{"vesselId":{"type":"number","nullable":true},"name":{"type":"string","nullable":true},"callSign":{"type":"string","nullable":true},"serviceType":{"type":"string","nullable":true},"buildYear":{"type":"number","nullable":true},"status":{"type":"string","nullable":true},"officialNumber":{"type":"string","nullable":true},"hullNumber":{"type":"string","nullable":true},"flag":{"type":"string","nullable":true}},"required":["vesselId","name","callSign","serviceType","buildYear","status","officialNumber","hullNumber","flag"],"additionalProperties":false}},"total":{"type":"integer","nullable":true,"description":"Total matching rows upstream; null when unknown."},"source":{"$ref":"#/components/schemas/Source"}},"required":["ok","items","total","source"],"additionalProperties":false},"meta":{"$ref":"#/components/schemas/CallMeta"}}}}}},"400":{"$ref":"#/components/responses/BadRequest"},"402":{"$ref":"#/components/responses/PaymentRequired"},"405":{"$ref":"#/components/responses/MethodNotAllowed"},"500":{"$ref":"#/components/responses/ServerError"},"502":{"$ref":"#/components/responses/UpstreamError"}},"x-2s-id":"maritime.vessel","x-2s-version":null,"x-2s-price":{"usd":0.0025},"x-2s-accepts":["x402"],"x-2s-response-shape":"normalized","x-payment-info":{"price":{"mode":"fixed","currency":"USD","amount":"0.002500"},"protocols":[{"x402":{}}]},"parameters":[{"name":"name","in":"query","required":false,"description":"Name to search for.","schema":{"type":"string","maxLength":100}},{"name":"callSign","in":"query","required":false,"description":"Call sign.","schema":{"type":"string","maxLength":40}},{"name":"officialNumber","in":"query","required":false,"description":"Official number.","schema":{"type":"string","maxLength":40}},{"name":"hullNumber","in":"query","required":false,"description":"Hull number.","schema":{"type":"string","maxLength":40}},{"name":"flag","in":"query","required":false,"description":"Flag.","schema":{"type":"string","maxLength":60}},{"name":"service","in":"query","required":false,"description":"Service.","schema":{"type":"string","maxLength":60}},{"name":"buildYear","in":"query","required":false,"description":"Build year.","schema":{"type":"string","pattern":"^\\d{4}$"}},{"name":"vesselId","in":"query","required":false,"description":"Vessel ID.","schema":{"type":"string","pattern":"^\\d+$"}},{"$ref":"#/components/parameters/TrialMode"}]}}}}