16
Korean APIs Live
102 operations, one key1-Click
OAuth Connection
102
Callable operations
1 Line
Lines to Start
From Government to Big Tech,
One Interface for All
From the Korean APIs callable today to the lineup coming soon — all reachable from one interface, no separate keys, no separate sign-ups.
API integrations were built for humans
We live in an age where agents drive the world — but API key issuance and integration still require human hands. Agents can't wait.
Key Management Nightmare
Sign up for each service, issue keys, manage env variables... Connect just 10 APIs and your .env file explodes.
OPENWEATHER_KEY=abc123... KAKAO_API_KEY=xyz789... NAVER_CLIENT_ID=a1b2c3... NAVER_CLIENT_SECRET=d4e5f6... UPBIT_ACCESS_KEY=g7h8i9... KMA_SERVICE_KEY=j0k1l2...
Format Fragmentation
Different response structures per API, constant re-parsing... Change one weather API and you have to rewrite everything.
// KMA API response
{ "response": { "body": { "items":
{ "item": [{ "fcstValue": "12" }] }}}
// OpenWeather response
{ "main": { "temp": 285.15 },
"weather": [{ "main": "Clear" }] }Hidden Costs
Multiple dashboards, separate payments, no usage visibility... Nobody knows this month's actual API costs.
📊 OpenWeather ····· $29/mo 📊 Kakao Maps ····· ₩15,000/mo 📊 Naver Search ····· ₩25,000/mo 📊 Public Data ····· Free(limited) 📊 Upbit ····· Free(limited) ───────────────────── 💸 Total: ???
Now agents connect directly
ApiFuse abstracts away the entire API layer. Every piece of data your agent needs — reachable instantly, without auth, parsing, or CORS.
| Item | Traditional | Fusepıe |
|---|---|---|
| API Connection | Issue keys per service | 1-Click OAuth |
| Response Format | All different | Standardized JSON |
| Billing | Multiple places | In one place |
| Integration Code | Hundreds of lines | 1 line |
| API Changes | Manual fix | Auto-handled |
| Error Handling | Build yourself | Standard error envelope |
| Updates | Manual | Automatic |
| Standardization | None | OpenAPI 3.1 |
Done in 3 steps
Call an Operation
Choose a provider operation and send structured input through the Gateway.
/v1/kma-forecast/short-forecast { gridX: 60, gridY: 127 }Auto Matching
ApiFuse picks the right operation and handles auth and routing for you. OAuth-backed APIs take one "Connect" click the first time — after that, calls are automatic.
Intent candidate searchSearching the Korean API lineup✓ KMA Short-term Forecast selectedUnified Response
Every API returns the same standard JSON shape, no matter which provider answered. No more rewriting parsers.
{
"source": "KMA API",
"data": {
"city": "Seoul",
"temp": 12,
"condition": "Clear"
},
"latency": "124ms"
}What happens under the hood?
Your agent's request flows through the ApiFuse Gateway and reaches the Korean API ecosystem.
The Complete API Layer for AI Agents
Tool Routing
Expose provider operations through one Gateway and MCP-compatible tool layer.
Provider execution · Gateway /v1 + /mcpA Single API Key
One ApiFuse API key unlocks every Korean API. OAuth-backed APIs only take one "Connect" click the first time — ApiFuse manages keys after that.
1 API key · Auto auth handlingKorean APIs That Matter
Government, big tech, booking and travel — Korea's essential APIs unified behind one interface. Which Korean service you need is no longer the variable that determines integration cost.
Government · Big Tech · Booking · TravelMCP Server
Model Context Protocol compatible. Connect directly from Claude Desktop, Cursor, and other MCP clients to call Korean APIs as tools.
/api/mcp — JSON-RPC 2.0 over HTTPAuto OpenAPI Generation
Auto-generates OpenAPI 3.1 specs for all integrated APIs. Instantly compatible with Swagger UI, Postman, and more.
/api/[id]/openapi endpoint auto-providedServer-side Proxy
Every API call goes through a server-side proxy. Call from the browser safely without CORS issues and try operations directly in the Playground.
Browser-direct testing · Built-in PlaygroundReady for these use cases
AI Agent Development
Give ChatGPT, Claude, and other LLM agents access to Korean APIs. No key management — one line of natural language handles weather, directions, restaurant bookings, and legal lookup.
Rapid Prototyping
Stop spending hackathon, MVP, and side-project time on Korean API integration. Focus on the idea — leave the APIs to ApiFuse.
MCP-based Agents
Plug into any Model Context Protocol-compatible framework. No tool definitions needed — Korean APIs become your agent's tools.
Available to call right now
Live and callable
Korean APIs spanning government, big tech, and booking categories are callable right now.
Toward a 500-API ecosystem
We're building toward a 500-Korean-API ecosystem, shipping new APIs every week. Only APIs with health checks and OpenAPI docs ready make it into the official lineup.
Beta Feedback Welcome
Early user feedback shapes our product direction. Tell us which APIs you need.
Frequently Asked Questions
"A world connected to every Korean API starts now."
Get started in 1 minute
One API key, standard JSON responses. Open a terminal and paste a single line.
# 1-minute start — copy & paste $ curl -X POST "https://api.apifuse.ai/v1/kma-forecast/short-forecast" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"stationName":"동작구","dataTerm":"DAILY"}'