# Best travel search and booking APIs for AI agents (slim)

> Duffel Flights and Stays API (B), LetsFG (B) and LiteAPI (Nuitee Connect) (D) lead the 11 ranked travel search and booking APIs. Picks by need, strengths, weaknesses and prices from the Anchor benchmark.

- Full: https://www.anchorterminal.com/best/travel/index.md (~5,850 tokens) · this version ~1,430 tokens · JSON https://www.anchorterminal.com/best/travel/index.json · canonical https://www.anchorterminal.com/best/travel/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

The 10 highest-scoring of 11 travel search and booking APIs on the Anchor benchmark, with a pick for each need and where each one falls short. Scores come from public evidence, re-checked as vendors change.

- Ranked: 11 · agent-ready (BB or better): 0 · accept x402: 0 · hosted endpoints: 11
- Full ranked table: https://www.anchorterminal.com/categories/travel.md
- Head-to-head comparisons: https://www.anchorterminal.com/compare/travel/index.md (55)
- Methodology: https://www.anchorterminal.com/benchmark/index.md

## The shortlist

| # | Tool | Grade | Score | Best for | Price | Where |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Duffel Flights and Stays API](https://www.anchorterminal.com/tools/duffel.md) | B | 66.7 | A business building a flight-booking agent that wants live airline inventory without a partner agreement and with prices it can plan against. | $3 / tx | hosted |
| 2 | [LetsFG](https://www.anchorterminal.com/tools/letsfg.md) | B | 64 | A personal agent that wants to search widely and book with the traveller's own card, starting in a free sandbox. | $0.01 / call | hosted and local |
| 3 | [LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/tools/liteapi.md) | D | 53.1 | A builder who wants an agent to book hotels this week without a contract, and to earn a margin on them. | $0.05 / call | hosted and local |
| 4 | [ETG API (RateHawk)](https://www.anchorterminal.com/tools/ratehawk.md) | D | 53 | A travel company with an ETG contract that wants wholesale hotel rates behind its agent, with a documented sandbox for the build. | Your plan | hosted |
| 5 | [Kiwi.com MCP Server](https://www.anchorterminal.com/tools/kiwi-mcp.md) | D | 51.9 | An assistant that looks up fares and hands the user a link to book on kiwi.com, with no setup. | Free | hosted |
| 6 | [Travelport TripServices APIs](https://www.anchorterminal.com/tools/travelport.md) | E | 45.9 | A travel agency, travel management company or travel platform that will sign a GDS contract and wants GDS, NDC and low-cost air content with full servicing plus hotels. | Paid | hosted |
| 7 | [Skyscanner Travel APIs](https://www.anchorterminal.com/tools/skyscanner.md) | E | 45.6 | An established travel site or app with a large audience that wants metasearch prices across flights, hotels and car hire and is content to send users to suppliers to book. | Free | hosted |
| 8 | [FlightClaw](https://www.anchorterminal.com/tools/flightclaw.md) | E | 45.3 | A personal assistant booking its owner's flights, with the owner paying on a hosted link. | 5% fee | hosted and local |
| 9 | [Expedia Group Rapid API](https://www.anchorterminal.com/tools/expedia-rapid.md) | E | 42.8 | An established travel business that already holds Rapid keys and wants Expedia's hotel inventory behind its agent. | Your plan | hosted |
| 10 | [Booking.com Demand API](https://www.anchorterminal.com/tools/booking-demand-api.md) | E | 38.1 | An affiliate that already holds Booking.com credentials and wants its agent to book stays, cars and attractions. | Your plan | hosted |

## Picks by need

- Highest score overall: [Duffel Flights and Stays API](https://www.anchorterminal.com/tools/duffel.md), B, 66.7/100 on the benchmark. Also [LetsFG](https://www.anchorterminal.com/tools/letsfg.md), B, 64/100.
- Schema & documentation: [LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/tools/liteapi.md), 86/100 on schema & documentation, against 59 for the overall leader.
- Agent ergonomics: [LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/tools/liteapi.md), 86/100 on agent ergonomics, against 80 for the overall leader.
- Security & auth: [LetsFG](https://www.anchorterminal.com/tools/letsfg.md), 66/100 on security & auth, against 60 for the overall leader.
- Lowest paid price per call: [Duffel Flights and Stays API](https://www.anchorterminal.com/tools/duffel.md), $0.005 per call, the lowest of the 3 listings here with a paid price in this unit (free allowances aside). Also [LetsFG](https://www.anchorterminal.com/tools/letsfg.md), $0.005 per call.
- A hosted MCP endpoint: [LetsFG](https://www.anchorterminal.com/tools/letsfg.md), remote MCP server, nothing to install.

## How to choose

- Whether an agent can book: Check whether the booking flow can be completed end to end by an agent, including holds, confirmation and changes, since search results alone do not create a reservation.
- Payment handling and types: Find out who takes payment and what payment types are accepted, since an agent that cannot pay in the same flow will leave bookings half finished.
- Booking fees and fulfilment: Check for booking fees and who fulfils the ticket or stay, since a fee added after the price search changes what the agent reports to its user.
- Sandbox access and going live: Check what getting access involves and how going live works, since a sandbox that behaves differently from production can make a working agent fail once real bookings start.

- How the benchmark tests this category: An agent searches a return flight and a hotel, holds or books where the sandbox allows, then changes and cancels. We check the inventory, the booking and payment steps, the change flow and what getting access took.

Each listing's verdict, strengths and weaknesses: https://www.anchorterminal.com/best/travel/index.md