1gateway

Use when you need actual apartment sale prices in a South Korean district for a month (property research, valuation, comps). Data: MOLIT (Korea land ministry) reported deals since 2006, updated daily. Input: region (5-digit LAWD_CD, e.g. 11680 Gangnam-gu), month (YYYYMM). Output: JSON trades with contract date, complex (Korean + romanized), area m2, floor, build year, price in KRW and USD, price per m2, deal type, cancelled flag. Example: ?region=11680&month=202609 Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "region": {
      "type": "string",
      "description": "5-digit 시군구 code (LAWD_CD), e.g. 11680 = Seoul Gangnam-gu, 11110 = Jongno-gu, 41135 = Seongnam Bundang-gu. Unknown codes → 400 (not charged)."
    },
    "month": {
      "type": "string",
      "description": "Contract month YYYYMM, 200601 to the current month (KST)"
    }
  },
  "required": [
    "region",
    "month"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need a quick housing-market snapshot for a South Korean district-month instead of raw trades. Data: MOLIT reported apartment sales, cancelled deals excluded. Input: region (5-digit LAWD_CD, e.g. 11680), month (YYYYMM). Output: JSON count, median/average/min/max price and price per m2 and per pyeong in KRW and USD, breakdown by size class, top complexes by volume. Example: ?region=11680&month=202609 Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "region": {
      "type": "string",
      "description": "5-digit 시군구 code (LAWD_CD), e.g. 11680 = Seoul Gangnam-gu. Unknown codes → 400 (not charged)."
    },
    "month": {
      "type": "string",
      "description": "Contract month YYYYMM, 200601 to the current month (KST)"
    }
  },
  "required": [
    "region",
    "month"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need the official weather forecast for a point in South Korea for the next ~3-5 days. Data: KMA (Korea Meteorological Administration) village forecast on a 5 km grid, issued 8 times a day. Input: lat, lon (WGS84 decimal; Korea only). Output: JSON hourly then 3-hourly temperature C, sky, precipitation type and probability %, rain and snow amounts, humidity %, wind; plus daily min/max. Example: ?lat=37.5665&lon=126.978 Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "lat": {
      "type": [
        "number",
        "string"
      ],
      "description": "Latitude, WGS84 decimal degrees (KMA domain ≈ 32–44; outside → 400, not charged)"
    },
    "lon": {
      "type": [
        "number",
        "string"
      ],
      "description": "Longitude, WGS84 decimal degrees (KMA domain ≈ 123–133)"
    }
  },
  "required": [
    "lat",
    "lon"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need South Korea's official public holidays for a year (business-day calculation, scheduling, settlement and payroll calendars). Data: KASI (Korea Astronomy and Space Science Institute) special-day register, incl. substitute and temporary holidays once promulgated. Input: year (YYYY, 2004-2100). Output: JSON list with date, weekday, Korean and English name, isPublicHoliday, kind. Example: ?year=2026 Price: $0.0027 USDC via x402.

{
  "type": "object",
  "properties": {
    "year": {
      "type": [
        "number",
        "string"
      ],
      "description": "Year YYYY (2004–2100)"
    }
  },
  "required": [
    "year"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need South Korea's earliest export read: the Korea Customs 10-day provisional release (days 1-10, 1-20, full month; out on the 11th, 21st and 1st). Input: optional month (YYYYMM) and period (10, 20, full); default latest. Output: JSON exports in USD with YoY %, latest 10-day increment, 10 key items (semiconductors, cars, ships...) and 10 markets (China, US, EU, Vietnam...) with YoY and share, next release date. Example: ?month=202609 Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "month": {
      "type": "string",
      "description": "Release month YYYYMM (default: latest release; data from 2024-09)"
    },
    "period": {
      "type": "string",
      "description": "10 (days 1-10), 20 (days 1-20) or full; requires month. Default: latest available for the month"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need South Korea's monthly trade for a product by HS code (e.g. 8542 chips, 870323 cars, 2710 petroleum). Data: Korea Customs Service, finalized monthly. Input: hs (2-10 digit prefix), optional month (YYYYMM, default latest), limit (1-100), sort (exports, imports, balance, total). Output: JSON totals (exports FOB, imports CIF, balance in USD, kg) with YoY % and 10-digit HSK lines with English HS descriptions and YoY. Example: ?hs=8542&month=202608 Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "hs": {
      "type": "string",
      "description": "HS code prefix, 2-10 digits (e.g. 8542 integrated circuits, 870323 passenger cars)"
    },
    "month": {
      "type": "string",
      "description": "Month YYYYMM (default: latest finalized month)"
    },
    "limit": {
      "type": [
        "number",
        "string"
      ],
      "description": "Max 10-digit lines returned (1-100, default 20)"
    },
    "sort": {
      "type": "string",
      "description": "Line order (default exports)"
    }
  },
  "required": [
    "hs"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need a one-call read on South Korea's export cycle for macro, FX or chip-sector analysis. Data: Korea Customs 10-day and monthly releases. Input: none. Output: JSON headline (latest exports and YoY, semiconductor share, strongest/weakest item and market, 3-month average YoY, momentum), latest release by item and market, 12 monthly export totals with YoY, and HS 8542 integrated-circuit trade for the latest month. Example: /v1/trade/pulse Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when an agent needs to know what a URL is before reading it, or to build a link preview or citation. Input: url (public http/https). Output: JSON with final URL after redirects, HTTP status, content type, title, description, site name, language, canonical, preview image, favicon, Open Graph and Twitter tags, RSS/Atom feeds, hreflang alternates, JSON-LD types, robots, first H1. No JavaScript is run. Example: ?url=https://developer.mozilla.org/en-US/ Price: $0.002 USDC via x402.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Public http(s) URL; private/internal addresses → 400 (not charged)"
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when an agent must check a domain: does it resolve, who hosts its DNS and mail, is email authenticated, how old is it, when does it expire. Input: domain (e.g. example.com; URLs accepted). Output: JSON DNS records (A, AAAA, CNAME, MX, NS, TXT, CAA, SOA), mail provider, parsed SPF and DMARC, DNS provider, and RDAP registration (registrar, created, expires, age in days, status, DNSSEC). No contact data. Example: ?domain=google.com Price: $0.0045 USDC via x402.

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Public domain or hostname (punycode for IDNs, e.g. xn--...); a URL is reduced to its hostname. Internal/reserved names → 400 (not charged)"
    }
  },
  "required": [
    "domain"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when you need an official daily FX rate or currency conversion (USD, EUR, KRW, JPY, CNY, GBP + 24 more). Input: base (default EUR), optional symbols (comma list), date (YYYY-MM-DD, last ~90 days; weekends use the prior fixing), amount. Output: JSON rates for the fixing date, % change vs prior fixing, converted amounts, raw ECB EUR rates. Source: ECB statistics, updated each TARGET day ~16:00 CET; reference only. Example: ?base=USD&symbols=KRW,JPY&amount=100 Price: $0.002 USDC via x402.

{
  "type": "object",
  "properties": {
    "base": {
      "type": "string",
      "description": "Base currency, ISO 4217 (one of the 30 ECB reference currencies; default EUR)"
    },
    "symbols": {
      "type": "string",
      "description": "Comma-separated target currencies (default: all). Supported: EUR,USD,JPY,KRW,CNY,GBP,AUD,BRL,CAD,CHF,CZK,DKK,HKD,HUF,IDR,ILS,INR,ISK,MXN,MYR,NOK,NZD,PHP,PLN,RON,SEK,SGD,THB,TRY,ZAR"
    },
    "date": {
      "type": "string",
      "description": "Fixing date YYYY-MM-DD within the last ~90 days (default latest)"
    },
    "amount": {
      "type": [
        "number",
        "string"
      ],
      "description": "Amount in base currency to convert"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when scheduling across time zones or turning a local time into UTC without guessing DST. Input: to (IANA zones or KST, PST, CET...), optional from (zone of a local time, default UTC), time (ISO 8601, Unix seconds, or now). Output: JSON UTC instant, Unix time, and per zone: local ISO time with offset, weekday, abbreviation, DST and business-hours flags, day difference. Example: ?time=2026-10-12T09:00&from=Asia/Seoul&to=America/New_York,Europe/London Price: $0.002 USDC via x402.

{
  "type": "object",
  "properties": {
    "to": {
      "type": "string",
      "description": "1–25 target zones, comma-separated (IANA names like Asia/Seoul, UTC, or abbreviations like KST, PST, CET)"
    },
    "from": {
      "type": "string",
      "description": "Zone of the input local time (default UTC; ignored when time has an offset)"
    },
    "time": {
      "type": "string",
      "description": "ISO 8601 date-time (2026-10-12T09:00, 2026-10-12T09:00:00+09:00), Unix seconds/ms, or now"
    }
  },
  "required": [
    "to"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when an agent must vet or research a website in one call (lead research, security or SEO check, is this site legit). Input: url or bare domain. Output: JSON page metadata, HTTP status, HTTPS and HTTP-to-HTTPS redirect, server and hosting hints, 7 security headers, robots.txt (sitemaps, AI-crawler rules), llms.txt presence, plus domain DNS, mail provider, SPF/DMARC and RDAP registrar, age and expiry. Example: ?url=stripe.com Price: $0.009 USDC via x402.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Site URL or bare domain (https:// assumed); private/internal targets → 400 (not charged)"
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when an agent must vet a Base ERC-20 before buying or integrating it. Input: address. Output: JSON risk signals with block+evidence: proxy+admin, owner (renounced/EOA/contract/undeclared), mint/pause/blacklist/fee selectors, Uniswap v2/v3/v4 (incl. hooked launch pools, hook permissions) + Aerodrome pools, buy/sell simulation, notChecked. Signals, not a safe verdict. Bad input/EOA: 400, not charged. Example: ?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 Price: $0.009 USDC via x402.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "Token contract on Base mainnet (0x + 40 hex; mixed case must be a valid EIP-55 checksum). EOAs, bad checksums → 400 before payment (not charged)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Use when an agent must read a document as clean Markdown: web page, PDF, DOCX or Korean HWP/HWPX, tables kept. Input: url (http/https) via GET, or POST a file (multipart 'file', raw body, or JSON contentBase64+filename). Over the per-format size cap → 413 before payment (see /openapi.json). Output: JSON markdown, title, pages, sourceType, bytes, warnings. Price by detected type: HTML $0.0027, PDF/DOCX $0.0045, HWP/HWPX $0.02. Example: ?url=https://example.com/ Price: $0.0027–$0.02 USDC via x402.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Public http(s) URL of a web page, PDF, DOCX, HWP or HWPX (max 10 MB)"
    },
    "contentBase64": {
      "type": "string",
      "description": "Document bytes as base64 (alternative to url; max 10 MB decoded)"
    },
    "filename": {
      "type": "string",
      "description": "Original file name, e.g. report.hwp (helps detection)"
    },
    "type": {
      "type": "string",
      "description": "Optional expected type: html, text, pdf, docx, hwp, hwpx"
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}