{"name":"1gateway","tagline":"Pay-per-call API gateway for AI agents (x402, USDC on Base)","website":"https://1gateway.dev","description":"1gateway is a pay-per-call API gateway for AI agents and developers: data APIs normalized to clean English JSON, paid per request with USDC on Base via x402 — no signup, no API key. Current coverage: Korean data (real estate trades, trade statistics, weather forecasts, holidays) plus agent utilities: document-to-Markdown (web, PDF, DOCX, Korean HWP/HWPX), URL metadata, domain lookup, ECB FX rates, time zones; more APIs and countries are coming.","coverage":{"current":["KR"],"note":"Current coverage: Korean data (real estate trades, Korea Customs trade statistics, weather, holidays) and agent utilities (document-to-Markdown incl. HWP/HWPX, URL metadata, domain lookup, ECB FX rates, time-zone conversion); more APIs and countries are coming."},"payment":{"protocol":"x402 v2","scheme":"exact","asset":"USDC","network":"eip155:8453","facilitator":"cdp","howTo":"Call any paid endpoint; you get HTTP 402 with PAYMENT-REQUIRED header. Sign and retry with PAYMENT-SIGNATURE (use @x402/fetch or any x402 client)."},"endpoints":[{"id":"kr_apartment_trades","method":"GET","url":"https://1gateway.dev/v1/realestate/apartment-trades","price":"$0.0045","title":"Korea apartment sale transactions (MOLIT) — English JSON with KRW & USD","params":["region","month"]},{"id":"kr_apartment_trades_summary","method":"GET","url":"https://1gateway.dev/v1/realestate/apartment-trades/summary","price":"$0.0045","title":"Korea apartment price summary for a district-month (count, median/avg price and price per m²)","params":["region","month"]},{"id":"kr_weather_forecast","method":"GET","url":"https://1gateway.dev/v1/weather/forecast","price":"$0.0045","title":"Korea short-term weather forecast (KMA) by latitude/longitude","params":["lat","lon"]},{"id":"kr_public_holidays","method":"GET","url":"https://1gateway.dev/v1/calendar/holidays","price":"$0.0027","title":"Korea public holidays for a year (KASI), English names","params":["year"]},{"id":"kr_trade_exports_10day","method":"GET","url":"https://1gateway.dev/v1/trade/exports/10day","price":"$0.0045","title":"Korea 10-day export flash (Korea Customs): totals, YoY, top items and markets","params":["month","period"]},{"id":"kr_trade_hs","method":"GET","url":"https://1gateway.dev/v1/trade/hs","price":"$0.0045","title":"Korea monthly exports/imports by HS code (Korea Customs), English HS descriptions, YoY","params":["hs","month","limit","sort"]},{"id":"kr_trade_pulse","method":"GET","url":"https://1gateway.dev/v1/trade/pulse","price":"$0.0045","title":"Korea Trade Pulse: latest export flash, 12-month trend and semiconductor detail in one call","params":[]},{"id":"web_metadata","method":"GET","url":"https://1gateway.dev/v1/web/metadata","price":"$0.002","title":"URL metadata / link preview: title, description, Open Graph, Twitter card, icons, feeds, JSON-LD","params":["url"]},{"id":"domain_lookup","method":"GET","url":"https://1gateway.dev/v1/domain/lookup","price":"$0.0045","title":"Domain lookup: DNS records, mail provider, SPF/DMARC, RDAP registrar, creation/expiry dates","params":["domain"]},{"id":"fx_rates","method":"GET","url":"https://1gateway.dev/v1/fx/rates","price":"$0.002","title":"FX reference rates (ECB): 30 currencies incl. KRW, any base, conversion, last 90 days","params":["base","symbols","date","amount"]},{"id":"time_convert","method":"GET","url":"https://1gateway.dev/v1/time/convert","price":"$0.002","title":"Time-zone conversion: one instant in many zones, DST-aware, offsets, business hours","params":["to","from","time"]},{"id":"site_profile","method":"GET","url":"https://1gateway.dev/v1/web/site-profile","price":"$0.009","title":"Site profile: page metadata + security headers + robots/llms.txt + DNS, mail auth and domain age in one call","params":["url"]},{"id":"base_token_risk","method":"GET","url":"https://1gateway.dev/v1/onchain/base/token-risk","price":"$0.009","title":"Base token / contract risk signals: proxy, owner, privileged functions, pools, buy/sell simulation","params":["address"]},{"id":"convert_to_markdown","method":"GET, POST","url":"https://1gateway.dev/v1/convert/markdown","price":"$0.0027–$0.02","priceTiers":[{"price":"$0.0027","types":["html","text"],"label":"Web page / HTML / plain text"},{"price":"$0.0045","types":["pdf","docx"],"label":"PDF, DOCX"},{"price":"$0.02","types":["hwp","hwpx"],"label":"HWP, HWPX (Hancom)"}],"pricing":"Price is set by the detected document type before payment (402 quotes the exact tier).","title":"Document to Markdown: web pages, PDF, DOCX and Korean HWP/HWPX","params":["url","type"]}],"contact":{"email":"baudouin.iv.1177@gmail.com"},"docs":{"openapi":"https://1gateway.dev/openapi.json","llms":"https://1gateway.dev/llms.txt","index":"https://1gateway.dev/index.json","landing":"https://1gateway.dev/"},"mcp":{"url":"https://1gateway.dev/mcp","transport":"streamable-http","note":"initialize/tools/list free; tools/call paid via x402 (params._meta[\"x402/payment\"])"},"dataSources":["MOLIT apartment sale transactions (data.go.kr #15126469, no usage restriction)","KMA short-term forecast (data.go.kr #15084084, KOGL Type 1 — attribution)","KASI special days (data.go.kr #15012690, no usage restriction)","Korea Customs Service 10-day export release by item and country, monthly trade by HS code (data.go.kr #15157908, #15157941, #15101609, no usage restriction)","HS English descriptions: UN Comtrade HS nomenclature via datasets/harmonized-system (ODC-PDDL)","FX: euro foreign exchange reference rates — Source: ECB statistics (free reuse with attribution; available free of charge from the ECB website)","Domain lookup: Cloudflare 1.1.1.1 DNS-over-HTTPS and registry RDAP via the IANA bootstrap (contact entities removed)"],"notices":["Document conversion: 본 제품은 한컴의 HWP 문서 파일(.hwp) 공개 문서를 참고하여 개발하였습니다. (HWP support was developed with reference to Hancom's published HWP document file (.hwp) format specification.)","Converted documents are processed in memory only; contents are not stored or logged."],"policy":"No personal data, credit data or identity-verification APIs are offered."}