Kiwi.com helps AI agents search and compare flights across airlines, dates, and destinations. Find travel options, compare fares and itineraries, explore flexible-date combinations, and retrieve flight details to support trip planning and booking decisions.
Hermes is Nous Research's command-line agent. MCP servers are declared in its YAML config and reloaded without a restart.
This guide connects Kiwi MCP to Hermes through MewCP, so Hermes can use Kiwi MCP's 2 tools, like search-flight and feedback-to-devs.
Kiwi MCP needs no credentials, but every call still runs through MewCP: scoped, checked and logged like any other.
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Kiwi MCP works the same way in every client below. Pick yours for its own guide.
Free to start.
Scope access to the exact Kiwi MCP tools and accounts you allow, work and personal side by side. Anything outside that scope is refused at call time, even when the model asks for it.
Each call is logged: what ran, on which account, and whether it worked. Failures come back structured, so the agent knows whether to retry instead of guessing.
Every app sits behind one secure MCP URL, and there is no server for you to deploy or keep running. Add an integration in the dashboard and it is live on the next call, with no config to change and no new credentials to wire up. Tools load only when a task needs them, so your agent stays fast and focused however many apps you connect.
Edit config.yaml in your Hermes config directory (~/.hermes).
Put this under the top-level "mcp_servers:" key.
Run /reload-mcp in Hermes, or start a fresh session. Sign in when the browser window opens.
Start a new chat and ask: "List the tools you can use from MewCP." You should see your connected apps.
# Search for flights Searches Kiwi.com for available flights between two locations for the given dates and passengers. City or airport names are resolved automatically, so call this whenever the user wants to search for flights — whether they gave IATA codes or just place names. ## Result shape Returns `{ query, currency, passengers, resultsCount, itineraries, searchTimeMs }`. Each item in `itineraries` has: - `price` (number) and `priceFormatted` (e.g. "123 EUR") - `totalDurationSeconds` - `bookingUrl` — the link to book the flight - `imageId` — destination city id for a hero photo (https://images.kiwi.com/photos/600x600/{imageId}.jpg) - `baggage` — total included baggage across all travelers: `{ personalItem, cabinBag, checkedBag }` (counts) - `outbound` (and `inbound` for return flights), each a leg with: `route` (list of airport codes including layovers, e.g. ["PRG","MAD","BCN"]), `departureTime` / `arrivalTime` (local ISO timestamps), `durationSeconds`, `stops`, `cabinClass`, and a `segments` list. Each segment has `from`/`to` (IATA), `fromCity`/`toCity`, `fromName`/`toName` (full airport names), `fromCountry`/`toCountry`, `carrier` (code) and `carrierName` (airline name), `flightNumber`, and `cabinClass`. ## How to display Render a markdown table. Group results into cheapest (lowest `price`), shortest (lowest `totalDurationSeconds`), and other notable options. For each itinerary show, in order: - Route: join `outbound.route` with " → " (e.g. "PRG → MAD → BCN"); for return flights show `inbound.route` on a second line. - Times & duration: `outbound.departureTime` → `outbound.arrivalTime` (local), formatted readably (e.g. "12 Jun 06:05 → 09:30 (3h 25m)") using `outbound.durationSeconds`; add the `inbound` equivalents for return flights. - Cabin: `outbound.cabinClass` (e.g. "Economy"). - Price: `priceFormatted`. - Booking link: `bookingUrl`. Finally, summarise the best price and the shortest option, give a recommendation, and end wishing the user a nice trip with a short fun fact about the destination!
Send feedback, bug reports, or feature requests about the Kiwi.com search-flight MCP tool to its developers. This channel is ONLY for the flight search tool — search results, pricing, itineraries, filters, or errors in search responses. Do NOT use it for other MCP servers, Claude/app behaviour, account or booking management, voice mode, or unrelated Kiwi.com features; those won't reach the right team. Include error messages, logs, or context that would help the developers reproduce the issue.
