{ "openapi": "3.1.0", "info": { "title": "AgentGate", "version": "1.0.0", "description": "Pay-per-call micro-APIs for AI agents: web content extraction, airport data, route distances and DNS intelligence. No accounts, no API keys — every request is paid on the spot with USDC on Base via the x402 protocol.", "x-guidance": "All endpoints are GET requests with query parameters and return JSON. Pay per call with x402 (USDC on Base mainnet, eip155:8453). Use GET /api/extract?url= to read any public web page as clean text with title, metadata, headings and links. Use GET /api/airport?code= for airport data (49,000+ airports). Use GET /api/route?from=&to= for great-circle distance and estimated flight time between two airports. Use GET /api/dns?domain= for DNS records and a domain-health summary. The free catalog at GET /api lists everything.", "contact": { "email": "streamofwork@gmail.com" } }, "servers": [{ "url": "https://agentgate-x402.netlify.app" }], "paths": { "/api/extract": { "get": { "operationId": "extractWebContent", "summary": "Extract clean readable content from any public web page", "description": "Fetches the URL and returns clean readable text with HTML noise stripped, plus title, meta description, OpenGraph data, canonical URL, language, headings, outbound links and word count.", "tags": ["Web"], "x-payment-info": { "price": { "mode": "fixed", "currency": "USD", "amount": "0.005000" }, "protocols": [{ "x402": {} }] }, "parameters": [ { "name": "url", "in": "query", "required": true, "description": "http(s) URL of the page to extract", "schema": { "type": "string", "format": "uri", "minLength": 10 }, "example": "https://example.com/article" } ], "responses": { "200": { "description": "Extracted page content", "content": { "application/json": { "schema": { "type": "object", "properties": { "url": { "type": "string", "description": "final URL after redirects" }, "title": { "type": ["string", "null"] }, "description": { "type": ["string", "null"] }, "canonical": { "type": ["string", "null"] }, "lang": { "type": ["string", "null"] }, "ogImage": { "type": ["string", "null"] }, "siteName": { "type": ["string", "null"] }, "headings": { "type": "array", "items": { "type": "string" } }, "text": { "type": "string", "description": "clean readable page text, up to 40,000 chars" }, "wordCount": { "type": "integer" }, "links": { "type": "array", "items": { "type": "object", "properties": { "text": { "type": "string" }, "href": { "type": "string" } } } } }, "required": ["url", "text", "wordCount"] } } } }, "402": { "description": "Payment Required" } } } }, "/api/airport": { "get": { "operationId": "lookupAirport", "summary": "Airport lookup by IATA or ICAO code", "description": "Returns airport name, coordinates, elevation, country, region, municipality, size class and scheduled-service flag. Covers 49,000+ airports worldwide (OurAirports data).", "tags": ["Aviation"], "x-payment-info": { "price": { "mode": "fixed", "currency": "USD", "amount": "0.002000" }, "protocols": [{ "x402": {} }] }, "parameters": [ { "name": "code", "in": "query", "required": true, "description": "3-letter IATA or 4-letter ICAO airport code", "schema": { "type": "string", "pattern": "^[A-Za-z0-9]{3,4}$" }, "example": "DXB" } ], "responses": { "200": { "description": "Airport record", "content": { "application/json": { "schema": { "type": "object", "properties": { "icao": { "type": "string" }, "iata": { "type": "string" }, "name": { "type": "string" }, "lat": { "type": "number" }, "lon": { "type": "number" }, "elevationFt": { "type": ["integer", "null"] }, "country": { "type": "string", "description": "ISO 3166-1 alpha-2" }, "region": { "type": "string", "description": "ISO 3166-2" }, "municipality": { "type": "string" }, "type": { "type": "string", "enum": ["large", "medium", "small", "seaplane_base"] }, "scheduledService": { "type": "boolean" } }, "required": ["icao", "name", "lat", "lon", "country"] } } } }, "402": { "description": "Payment Required" }, "404": { "description": "No airport found for that code" } } } }, "/api/route": { "get": { "operationId": "airportRoute", "summary": "Distance and flight time between two airports", "description": "Great-circle distance in km, nautical miles and statute miles plus an estimated block flight time between any two of 49,000+ airports, identified by IATA or ICAO code.", "tags": ["Aviation"], "x-payment-info": { "price": { "mode": "fixed", "currency": "USD", "amount": "0.002000" }, "protocols": [{ "x402": {} }] }, "parameters": [ { "name": "from", "in": "query", "required": true, "description": "origin airport IATA/ICAO code", "schema": { "type": "string", "pattern": "^[A-Za-z0-9]{3,4}$" }, "example": "JFK" }, { "name": "to", "in": "query", "required": true, "description": "destination airport IATA/ICAO code", "schema": { "type": "string", "pattern": "^[A-Za-z0-9]{3,4}$" }, "example": "LHR" } ], "responses": { "200": { "description": "Route distance and time estimate", "content": { "application/json": { "schema": { "type": "object", "properties": { "from": { "type": "object", "description": "origin airport record" }, "to": { "type": "object", "description": "destination airport record" }, "distance": { "type": "object", "properties": { "km": { "type": "integer" }, "nm": { "type": "integer" }, "mi": { "type": "integer" } }, "required": ["km", "nm", "mi"] }, "estimatedFlightTime": { "type": "object", "properties": { "hours": { "type": "number" }, "formatted": { "type": "string" } } } }, "required": ["from", "to", "distance"] } } } }, "402": { "description": "Payment Required" }, "404": { "description": "One of the airport codes was not found" } } } }, "/api/dns": { "get": { "operationId": "dnsIntelligence", "summary": "DNS records and domain-health summary", "description": "Returns A/AAAA/CNAME/MX/NS/TXT records with TTLs plus a summary: whether the domain resolves, has mail configured, its SPF policy and any site-verification tokens.", "tags": ["Domains"], "x-payment-info": { "price": { "mode": "fixed", "currency": "USD", "amount": "0.002000" }, "protocols": [{ "x402": {} }] }, "parameters": [ { "name": "domain", "in": "query", "required": true, "description": "domain name to inspect", "schema": { "type": "string", "minLength": 4 }, "example": "openai.com" } ], "responses": { "200": { "description": "DNS records and summary", "content": { "application/json": { "schema": { "type": "object", "properties": { "domain": { "type": "string" }, "records": { "type": "object", "description": "keyed by record type: A, AAAA, CNAME, MX, NS, TXT", "additionalProperties": true }, "summary": { "type": "object", "properties": { "resolves": { "type": "boolean" }, "hasMx": { "type": "boolean" }, "spf": { "type": ["string", "null"] }, "verifications": { "type": "array", "items": { "type": "string" } } } } }, "required": ["domain", "records", "summary"] } } } }, "402": { "description": "Payment Required" } } } } } }