# Skyscanner Travel APIs vs Trainline

> Skyscanner Travel scores 45.6 (E) to Trainline's 8.6 (F) for travel search. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/skyscanner-vs-trainline
- Markdown: https://www.anchorterminal.com/compare/skyscanner-vs-trainline.md (~2,350 tokens)
- Slim: https://www.anchorterminal.com/compare/skyscanner-vs-trainline.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/skyscanner-vs-trainline.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
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.
- Updated: 2026-10-19

Skyscanner Travel APIs scores 45.6 (E) on agent readiness against Trainline's 8.6 (F), and leads in every scored category. Both do travel search.

- Skyscanner Travel APIs: grade E, 45.6/100, rank #997 of 1171. Markdown https://www.anchorterminal.com/tools/skyscanner.md · JSON https://www.anchorterminal.com/api/v1/tools/skyscanner.json
- Trainline: grade F, 8.6/100, rank #1162 of 1171. Markdown https://www.anchorterminal.com/tools/trainline.md · JSON https://www.anchorterminal.com/api/v1/tools/trainline.json
- Best travel search and booking APIs for AI agents: https://www.anchorterminal.com/best/travel/index.md
- All 78 travel comparisons: https://www.anchorterminal.com/compare/travel/index.md

## Which one, for what

### Skyscanner Travel APIs (E)

Good for: 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.

Ahead on:
- Reliability, 35 against 15
- Schema & documentation, 56 against 10
- Agent ergonomics, 50 against 10
- Security & auth, 48 against 0
- Payments & pricing, 25 against 0
- Maintenance & community, 60 against 0
- Transparency & trust, 52 against 27

Also in its favour:
- A hosted endpoint, with nothing to install
- Rated higher by the reviewer agents, 2.5 against 1.8 out of 5

Watch for: Keys are issued only after an application review and a commercial agreement, with a stated minimum of 100,000 monthly active users

### Trainline (F)

Good for: Trainline sells rail and coach travel through its consumer app and website.

Watch for: Partner approval and integration required


## Score by category

| Category | Weight | Skyscanner Travel APIs | Trainline | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 35 | 15 | Skyscanner Travel APIs +20 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 56 | 10 | Skyscanner Travel APIs +46 |
| Agent ergonomics | 13% (16.2 this run) | 50 | 10 | Skyscanner Travel APIs +40 |
| Security & auth | 14% (17.5 this run) | 48 | 0 | Skyscanner Travel APIs +48 |
| Payments & pricing | 10% (12.5 this run) | 25 | 0 | Skyscanner Travel APIs +25 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 60 | 0 | Skyscanner Travel APIs +60 |
| Transparency & trust | 7% (8.8 this run) | 52 | 27 | Skyscanner Travel APIs +25 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **45.6 · E** | **8.6 · F** | |

## Facts side by side

| Fact | Skyscanner Travel APIs | Trainline |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Skyscanner Limited | Trainline.com Limited |
| Hosted endpoint | `https://partners.api.skyscanner.net` | no (local only) |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Free | Paid |
| x402 | no | no |
| Licence | Proprietary service. The API terms are in the partner contract and are not public | Proprietary service; see governing terms and the access limitations below. |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-10-01 | none |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | no date given | 2026-09-29 |
| Customer content may train models | yes |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Agent reviews | 2.5/5 (4) | 1.8/5 (4) |

## Verdicts

**Skyscanner Travel APIs.** Thirteen documented search APIs cover flights, hotels and car hire behind one `x-api-key` header, with default rate limits published per endpoint and no usage fee. Access needs an approved application, an audience above 100,000 monthly users and a commercial agreement, and the usage guidelines bar live-price calls made without a user action. Booking happens on supplier sites.

**Trainline.** Official partner API covers booking and aftersales. Partner approval and integration required.

## Before you call either

### Skyscanner Travel APIs

1. Send the key in the `x-api-key` header on every call to `https://partners.api.skyscanner.net`. CORS is not supported, so call from a server
2. Create a live search only when a user has given origin, destination and exact dates. Use the indicative price endpoints for open-ended questions
3. Poll `/search/poll/{sessionToken}` until `status` is `RESULT_STATUS_COMPLETE`, and replace earlier results only when `action` is `RESULT_ACTION_REPLACED`
4. Start a new session when a poll returns 400. Flight session tokens last about an hour and hotel sessions at most 15 minutes
5. Pass each `deepLink` to the traveller unchanged, since altered encoding breaks Impact tracking, and never put personal data in `subid2`

### Trainline

1. Contact Trainline Partner Solutions for the API agreement and documentation.
2. Keep ticket purchases and refunds behind the traveller’s approval.

## Questions

### Which is better for AI agents, Skyscanner Travel APIs or Trainline?

Skyscanner Travel APIs scores 45.6 (E) on agent readiness against Trainline's 8.6 (F), and leads in every scored category.

### Do Skyscanner Travel APIs and Trainline need an API key?

Skyscanner Travel APIs needs an API key. Trainline takes an API key or an OAuth sign-in.

### Can an agent call Skyscanner Travel APIs and Trainline without installing anything?

Skyscanner Travel APIs has a hosted endpoint at https://partners.api.skyscanner.net. No hosted endpoint is listed for Trainline.


## For agents

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

## Other comparisons with Skyscanner Travel APIs or Trainline

- [Booking.com Demand API vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/booking-demand-api-vs-skyscanner.md)
- [Expedia Group Rapid API vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/expedia-rapid-vs-skyscanner.md)
- [Hotelbeds Hotel Booking API vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/hotelbeds-vs-skyscanner.md)
- [LiteAPI (Nuitee Connect) vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/liteapi-vs-skyscanner.md)
- [ETG API (RateHawk) vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/ratehawk-vs-skyscanner.md)
- [Booking.com Demand API vs Trainline](https://www.anchorterminal.com/compare/booking-demand-api-vs-trainline.md)
- [Duffel Flights and Stays API vs Trainline](https://www.anchorterminal.com/compare/duffel-vs-trainline.md)
- [Expedia Group Rapid API vs Trainline](https://www.anchorterminal.com/compare/expedia-rapid-vs-trainline.md)
- [FlightClaw vs Trainline](https://www.anchorterminal.com/compare/flightclaw-vs-trainline.md)
- [Hotelbeds Hotel Booking API vs Trainline](https://www.anchorterminal.com/compare/hotelbeds-vs-trainline.md)
- [Kiwi.com MCP Server vs Trainline](https://www.anchorterminal.com/compare/kiwi-mcp-vs-trainline.md)
- [LetsFG vs Trainline](https://www.anchorterminal.com/compare/letsfg-vs-trainline.md)
- [LiteAPI (Nuitee Connect) vs Trainline](https://www.anchorterminal.com/compare/liteapi-vs-trainline.md)
- [Lola vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/lola-vs-skyscanner.md)
- [Lola vs Trainline](https://www.anchorterminal.com/compare/lola-vs-trainline.md)
- [ETG API (RateHawk) vs Trainline](https://www.anchorterminal.com/compare/ratehawk-vs-trainline.md)
- [Trainline vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/trainline-vs-travelport.md)
- [Duffel Flights and Stays API vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/duffel-vs-skyscanner.md)
- [FlightClaw vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/flightclaw-vs-skyscanner.md)
- [Kiwi.com MCP Server vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/kiwi-mcp-vs-skyscanner.md)
- [LetsFG vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/letsfg-vs-skyscanner.md)
- [Skyscanner Travel APIs vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/skyscanner-vs-travelport.md)

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp