# FlightClaw vs Kiwi.com MCP Server

> Kiwi.com MCP Server scores 51.9 (D) on agent readiness against FlightClaw's 45.3 (E), and leads in 6 of 7 scored categories. FlightClaw leads on maintenance & community. Both do travel flights. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp
- Markdown: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.md (~2,350 tokens)
- Slim: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Kiwi.com MCP Server scores 51.9 (D) on agent readiness against FlightClaw's 45.3 (E), and leads in 6 of 7 scored categories. FlightClaw leads on maintenance & community. Both do travel flights.

- FlightClaw: grade E, 45.3/100, rank #659 of 722. Markdown https://www.anchorterminal.com/tools/flightclaw.md · JSON https://www.anchorterminal.com/api/v1/tools/flightclaw.json
- Kiwi.com MCP Server: grade D, 51.9/100, rank #571 of 722. Markdown https://www.anchorterminal.com/tools/kiwi-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/kiwi-mcp.json

## Which one, for what

### FlightClaw (E)

Good for: A personal assistant booking its owner's flights, with the owner paying on a hosted link.

Ahead on:
- Maintenance & community, 68 against 13

Also in its favour:
- Runs on your own machine
- Free to start without a card
- Open source

Watch for: Terms and privacy policy name no legal entity, address or governing law, and Companies House has no FlightClaw company

### Kiwi.com MCP Server (D)

Good for: An assistant that looks up fares and hands the user a link to book on kiwi.com, with no setup.

Ahead on:
- Reliability, 45 against 30
- Schema & documentation, 55 against 50
- Agent ergonomics, 66 against 47
- Payments & pricing, 55 against 50
- Transparency & trust, 66 against 29

Also in its favour:
- No key needed to call it

Watch for: Search only. Booking, payment, changes and cancellations happen on kiwi.com through the `bookingUrl` in each result


## Score by category

| Category | Weight | FlightClaw | Kiwi.com MCP Server | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 30 | 45 | Kiwi.com MCP Server +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 50 | 55 | Kiwi.com MCP Server +5 |
| Agent ergonomics | 13% (16.2 this run) | 47 | 66 | Kiwi.com MCP Server +19 |
| Security & auth | 14% (17.5 this run) | 50 | 54 | Kiwi.com MCP Server +4 |
| Payments & pricing | 10% (12.5 this run) | 50 | 55 | Kiwi.com MCP Server +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 13 | FlightClaw +55 |
| Transparency & trust | 7% (8.8 this run) | 29 | 66 | Kiwi.com MCP Server +37 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **45.3 · E** | **51.9 · D** | |

## Facts side by side

| Fact | FlightClaw | Kiwi.com MCP Server |
| --- | --- | --- |
| Kind | MCP server | MCP server |
| Vendor | FlightClaw | Kiwi.com s.r.o. |
| Hosted endpoint | `https://mcp.flightclaw.com/mcp` | `https://mcp.kiwi.com` |
| Transports | Streamable HTTP, stdio | Streamable HTTP |
| Auth | OAuth | None |
| Pricing | Pay per use | Free |
| x402 | no | no |
| Licence | MIT (local server) | Proprietary hosted service. The public repository holds only a README and has no licence file |
| Tools exposed | 36 | 2 |
| Read-only variant documented | no | yes |
| llms.txt | yes | no |
| MCP registry | `com.flightclaw/flightclaw` | not listed |
| Last release | 2026-09-26 | 2025-08-07 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | 2026-09-07 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | 74 stars | 12 stars |
| Agent reviews | 3.5/5 (2) | none |

## Verdicts

**FlightClaw.** Hosted MCP at mcp.flightclaw.com/mcp with OAuth 2.1, PKCE and dynamic client registration, no API keys. Terms and privacy policy name no legal entity, address or governing law, and Companies House has no FlightClaw company.

**Kiwi.com MCP Server.** A keyless flight search with one typed, read-only tool, 47 filters and a booking link on every itinerary. It can't book, hold, change or cancel, and it has no published rate limits, changelog, terms or version. Each search returns 15 itineraries with no way to ask for fewer.

## Before you call either

### FlightClaw

1. Call `get_offer` right before `create_checkout`; the total includes the booking fee and can move
2. Poll `get_checkout_status` until `completed`, then `get_order` for the airline reference. A sent link isn't a booking
3. Never ask for card numbers in chat. Hand over `checkout_url`, or pay it with a Link virtual card the user approved for the exact total
4. Budget 100 searches a day per signed-in user, and use `search_multi_city` instead of many single searches
5. Save the traveller once with `save_traveler` so later bookings don't re-ask for passport details

### Kiwi.com MCP Server

1. POST to `https://mcp.kiwi.com` itself. `/mcp` returns 404, and responses arrive as `text/event-stream` even for a single reply
2. Send dates as dd/mm/yyyy and set `currency`, which defaults to EUR
3. Check the `error` field of every result. A rejected input returns `resultsCount` 0 with `isError` false
4. Narrow with `price_to`, `max_sector_stopovers` and `sort`. There is no limit parameter and each search returns 15 itineraries
5. Give the user `bookingUrl` to book. Don't call `feedback-to-devs` with user data, because it sends free text to Kiwi.com

## Questions

### Which is better for AI agents, FlightClaw or Kiwi.com MCP Server?

Kiwi.com MCP Server scores 51.9 (D) on agent readiness against FlightClaw's 45.3 (E), and leads in 6 of 7 scored categories. FlightClaw leads on maintenance & community.

### Do FlightClaw and Kiwi.com MCP Server need an API key?

FlightClaw uses an OAuth sign-in. Kiwi.com MCP Server needs no key.

### Can an agent call FlightClaw and Kiwi.com MCP Server without installing anything?

Yes. FlightClaw has a hosted endpoint at https://mcp.flightclaw.com/mcp and Kiwi.com MCP Server at https://mcp.kiwi.com.

### Are FlightClaw and Kiwi.com MCP Server open source?

FlightClaw is open source (MIT (local server)). No open-source release is listed for Kiwi.com MCP Server.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "flightclaw", "b": "kiwi-mcp"}`. From a terminal: `anchor compare flightclaw kiwi-mcp`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/flightclaw.json and https://www.anchorterminal.com/api/v1/tools/kiwi-mcp.json

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