Context7
Up-to-date docs for AI agents
제작자가 쓴 설명(영어 원문)
Search and book flights and hotels: hundreds of airlines, plus bookable hotel rates.
이 세 가지는 절대 하나의 점수로 합치지 않아요. 의견, 측정, 인기는 서로 다른 것이니까요.
이 서버는 아직 쉬운 말로 된 요약을 쓰지 못했어요. 아래는 레지스트리에서 읽어 온 사실이에요.
쓰고 있는 AI 앱을 고른 다음 설정을 복사하세요.
LETSFG_BEARER_TOKEN, LETSFG_API_KEY비밀로 표시된 값은 내 계정의 열쇠예요. 절대 다른 사람과 공유하거나 채팅에 붙여 넣지 마세요.
필요한 것
어떤 앱을 쓰세요?
위에서 앱을 고르세요. 기억해 두었다가 다음부터는 버튼에 “…에 설치”라고 표시해요.
웹, 데스크톱, 모바일의 Claude에서 쓸 수 있어요:
https://letsfg.co/developers/api/mcpClaude Desktop → Settings → Developer → Edit Config를 열고 claude_desktop_config.json에 이 내용을 붙여 넣으세요
{
"mcpServers": {
"letsfg": {
"command": "npx",
"args": [
"-y",
"letsfg-mcp"
],
"env": {
"LETSFG_BEARER_TOKEN": "your-value",
"LETSFG_API_KEY": "your-value"
}
}
}
}터미널에서 이 명령어를 실행하세요
claude mcp add --transport http letsfg https://letsfg.co/developers/api/mcpclaude mcp add letsfg --env LETSFG_BEARER_TOKEN=your-value --env LETSFG_API_KEY=your-value -- npx -y letsfg-mcp실행하기 전에 빈 값을 채워 주세요.
프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"letsfg": {
"url": "https://letsfg.co/developers/api/mcp"
}
}
}프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"letsfg": {
"command": "npx",
"args": [
"-y",
"letsfg-mcp"
],
"env": {
"LETSFG_BEARER_TOKEN": "your-value",
"LETSFG_API_KEY": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"letsfg": {
"type": "http",
"url": "https://letsfg.co/developers/api/mcp"
}
}
}프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"letsfg": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"letsfg-mcp"
],
"env": {
"LETSFG_BEARER_TOKEN": "your-value",
"LETSFG_API_KEY": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
ChatGPT는 인터넷에 있는 서버에만 연결할 수 있어요:
https://letsfg.co/developers/api/mcp메뉴 이름은 요금제나 시기에 따라 조금 다를 수 있어요.
선택한 앱은 이 기기의 쿠키에만 저장돼요. 계정은 필요 없어요.
이 설정은 제작자의 레지스트리 정보로 만들었어요. README와 다르면 README를 따르세요.
아직 이 서버의 도구 목록을 읽지 않았어요. 엔드포인트는 차례대로 돌아가며 점검해요.
누구나 볼 수 있는 정보를 점검했고, 코드는 읽지 않았어요. 해당하지 않는 항목은 개수에서 뺐어요. · 2026년 11월 6일 점검
레지스트리 이름이 GitHub 계정 LetsFG 기준으로 확인되었고, 이 계정이 저장소를 소유하고 있어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 점검하지 않았어요. 엔드포인트는 차례대로 돌아가며 점검해요
아직 점검하지 않았어요. 엔드포인트는 차례대로 돌아가며 점검해요
아직 점검하지 않았어요. 엔드포인트를 점검할 때 도구 목록을 읽어요
레지스트리에서 이 카테고리의 활성 서버 전체와 비교했어요. 스타는 게시자가 저장소를 소유한 경우에만 세요.
해당하는 기본 점검 1개 중 1개를 통과했어요. 코드는 읽지 않았어요. 키나 토큰을 넣기 전에 서버가 어떤 권한을 요구하는지 확인하고, 꼭 필요한 권한만 있는 키를 쓰세요.
입력해야 할 값: LETSFG_BEARER_TOKEN, LETSFG_API_KEY
둘 다 가능해요. 내 컴퓨터에 설치해도 되고, 클라우드 버전에 연결해도 돼요.
GitHub 저장소는 마지막으로 – 변경됐고, 최신 버전(2026.5.77)은 2개월 전 레지스트리에 올라왔어요.
Claude Desktop, Claude Code, Cursor, VS Code처럼 MCP를 지원하는 앱에서 쓸 수 있어요. URL로 연결되기 때문에, 원격 MCP 서버를 지원하는 앱(예: 개발자 모드의 ChatGPT)에서도 쓸 수 있어요.
같은 카테고리에는: Context7, Codebase Memory, Exa
같은 카테고리에서 다른 제작자가 만든 서버예요. 스타 순으로 정렬했어요.
카드 보는 법:★ GitHub 스타i세 기둥: 리뷰 · 점검 · 사용 정도i업데이트 = 최신 버전을 레지스트리에 공개한 날i
Up-to-date docs for AI agents
Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
Connect AI agents to Exa for web search, content fetching, and multi-step research.
제작자의 저장소에서 쓰인 그대로 가져왔어요. PopNx MCP가 검토하거나 보증한 내용이 아니에요. HTML, 이미지, 스크립트는 제거했어요. 링크를 누르면 이 사이트를 벗어나요.
Finding a flight or hotel shouldn't mean checking 47 tabs. Or 3 hours of searching.
Or having that feeling you could've got a better deal if you'd just waited a little longer.
So we built something about it.
One total price. No tracking. No price that goes up because you looked twice.
⭐ Star the repo. Share with a friend ✈️
Every airline in the world. Real prices. One function call.
LetsFG gives your AI agent flight and hotel search and booking superpowers. Our server-side engine scans the entire world for the cheapest price. Search is free. Booking is real: the fare is held on your card, a LetsFG booking agent buys the ticket, and you get the airline's PNR.
The same flight costs $20–$50 less because you skip OTA inflation, cookie tracking, and surge pricing.
Claude: LetsFG is in Claude's connector directory: add it there, no URL to paste. Other agents: add https://letsfg.co/mcp as an MCP server. Approving the connection opens letsfg.co/connect: one tap, no card. The card is asked for at your first booking, in a 0.00 Revolut setup (nothing is charged, no Revolut account needed). That token searches for free and books. Scripts: send the same token as Authorization: Bearer to the PFS endpoints. Developer API: a separate paid product for high-volume commercial use; most agents do not need it. → Get started
We searched 5 routes on Google Flights and LetsFG on the same day (2026-08-05), for flights departing 2026-09-16. Same airline, same number of stops — LetsFG was cheaper every time:
| Route | Airline | Google Flights | LetsFG | You Save |
|---|---|---|---|---|
| LAX → Paris (CDG) | JetBlue, 1 stop | $363 | $334 | $29 |
| SFO → London (LHR) | JetBlue, 1 stop | $349 | $333 | $16 |
| LA → New York (JFK) | JetBlue, nonstop | $174 | $157 | $17 |
| London → Singapore (SIN) | Shenzhen Airlines, 1 stop | $395 | $380 | $15 |
| Chicago → Dubai (DXB) | Air Canada + Emirates, 2 stops | $517 | $461 | $56 |
$133 cheaper across 5 routes in a verified comparison (2026-08-05). LetsFG returns the same prices however often you run the search, because it doesn't track you.
Why the difference? LetsFG compares the same flight across many sellers — Skyscanner, Kayak, Momondo, plus airline websites (Ryanair, United, Southwest, EasyJet, Spirit, Norwegian, AirAsia, and more) — and shows the cheapest. No cookie tracking: the same search returns the same prices however often you run it.
Same hotel, same room type, same 2-night stay, same free-cancellation policy — checked on the same day (2026-08-05) for a 2026-09-16 check-in:
| Hotel | Booking.com | LetsFG | You Save |
|---|---|---|---|
| Hotel Boss, Warsaw | $206 | $169 | $37 |
| ibis Styles Paris Gare de l'Est | $663 | $525 | $138 |
| Copthorne Tara Hotel, London Kensington | $379 | $347 | $32 |
$207 cheaper across 3 hotels in a verified comparison (2026-08-05), matching each property's own free-cancellation rate against Booking.com's free-cancellation rate for the identical dates and room type. Prices quoted in PLN at booking, converted to USD at that day's rate.
Why the difference? LetsFG's price does not rise with demand or with who is searching, and there is no loyalty-program cross-subsidy. At booking the price is held on your card, not taken, and it is charged only once the hotel confirms. The comparison above uses free-cancellation rates on both sides; LetsFG also sells non-refundable rates, and every offer says which it is.
Human users: Use letsfg.co and search flights instantly in your browser:
Search any route, compare live results, and book the flights you want — no installation needed.
Agents / scripts (free server-side): Get a Bearer token by putting a payment method on file (nothing is charged) → use POST /api/search and POST /api/agent-book. This is PFS — Programmatic Flight Search powered by the letsfg.co engine. Search is free; the token is short-lived and refreshes itself. See letsfg.co/for-agents for the full guide.
When you're ready to integrate it into your own agent, keep reading.
| Path 1 — MCP / CLI / SDK | Path 2 — PFS (Programmatic Flight Search via letsfg.co) | Path 3 — Developer API | |
|---|---|---|---|
| Best for | AI agents (Claude, ChatGPT, Cursor, Windsurf), personal use — easiest way in | Scripts/agents calling the API directly with a Bearer token | High-volume commercial integrations that want prepaid billing. Most agents should not use this |
| Speed | 8–10 s to first results | 8–10 s to first results | 2–5 s (discover) · 8–10 s to first results (full search) |
| Search cost | Free (connect once: one tap, no card) | Free (connect once: one tap, no card) | Look-to-book: 200 free after every booking, then $0.01 |
| Booking | book_flight — fare held on your card, agent buys the ticket, real PNR | POST /api/agent-book — same flow | POST /flights/book — same flow, no booking fee |
| Setup | Add https://letsfg.co/mcp as an MCP server and approve (one tap, no card) | Same token, sent as Authorization: Bearer — see below | letsfg.co/developers |
| Runs where | Our servers (ranking local in the SDK) | Our servers | Our servers |
https://letsfg.co/mcp as an MCP server in Claude, ChatGPT, Cursor or Windsurf and approve the connection. The consent step opens letsfg.co/connect: one tap, no card. The card is asked for at the first booking (any card, or Revolut Pay / Google Pay) in a 0.00 Revolut setup: nothing is charged, no Revolut account is needed, and card details go to Revolut, never to LetsFG. The token you get back searches for free, and once the card is added the same token books. The Python and JS SDKs read that token from LETSFG_BEARER_TOKEN or ~/.letsfg/config.json and apply the open-source ranking algorithm locally. (letsfg auth runs this same connect flow from the terminal: it registers itself as an OAuth client, opens letsfg.co/connect in a browser for a person to approve, and stores the token.)POST https://letsfg.co/api/search with Authorization: Bearer → { search_id }GET https://letsfg.co/api/results/ (never counts against the rate limit)POST https://letsfg.co/api/agent-book → { booking_ref } within secondsPOST https://letsfg.co/api/agent-book/status with { booking_ref } every 20–30 s until completed (PNR), failed (hold released, nothing charged) or needs_attentionPOST /api/agent-access/request still answers 402 with add_card_url and these steps as JSON, so an agent that starts from the endpoint lands in the same place. The MPP lane (a wallet, no card) is unchanged: answer the WWW-Authenticate: Payment challenge ($0.01 once) and verify with Authorization: Payment. The Stripe setup_url / SetupIntent lanes were retired on 2026-09-02 and every token they issued was revoked; reconnect at letsfg.co/connect. Full guide and response schema: [letsfg.co/for-agents](https://letsfg
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