# Trainline — Wrapped API

> **You are on:** `https://api.paywithlocus.com/api` | [llms.txt](https://paywithlocus.com/llms.txt) | [docs](https://docs.paywithlocus.com)
>
> Locus runs on multiple environments -- make sure every URL you call matches your expected environment.
> | Environment | Landing | API | Docs |
> |---|---|---|---|
> | Production | paywithlocus.com | api.paywithlocus.com | docs.paywithlocus.com |
> | Beta | beta.paywithlocus.com | api.beta.paywithlocus.com | docs.paywithlocus.com |
> | Stage | stage.paywithlocus.com | api.stage.paywithlocus.com | docs.paywithlocus.com |
>
> If the API URL above doesn't match your expected environment, re-fetch this file from the correct domain.

> Search for train stations and routes across the UK and Europe, then find and compare available journeys with schedules and pricing. Book your ideal train trip by accessing real-time travel options directly from Trainline.com.

**Category:** Travel | **Website:** [trainline.eu/](https://trainline.eu/) | **Docs:** [parse.bot/marketplace/ceb78020-1bd5-49ad-a0af-fa61f8afaedb/trainline-eu-api](https://parse.bot/marketplace/ceb78020-1bd5-49ad-a0af-fa61f8afaedb/trainline-eu-api)

Pay-per-use API proxy for Locus Pro. Each call burns credits from your workspace balance.

## Access

**Base URL:** `https://api.paywithlocus.com/api/wrapped/credits/trainline/`
**Auth:** `Authorization: Bearer <LOCUS_CREDITS_SECRET_KEY>` (an `lcr_` secret key or a scoped `lcac_` agent credential)
**Required header:** `Idempotency-Key: <fresh UUID per call>`. A retry with the same key replays the stored result without a new charge.
**Response:** the provider response after any endpoint-specific normalization. `X-Locus-Credits-Charged` carries the charge and `X-Locus-Credits-Balance` the remaining balance. Insufficient credits return `402` before the provider is called.
**Pricing:** estimated costs below are USD. Locus debits the credit equivalent at your workspace rate.

Full call contract: https://docs.paywithlocus.com/api-reference/introduction

> Using a Pay With Locus wallet key (`claw_` prefix)? Wallet routes are documented separately: https://docs.paywithlocus.com/wrapped-apis/for-agents

## Endpoints

### Get routes from station

Retrieve all available routes and destinations reachable from a given station. Returns destination station names, countries, typical journey durations, daily train frequency, and first/last departure times. Use a station URN from search_locations as input. Results are ordered by popularity as indexed by Trainline.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `station_urn` | string | Yes | Station URN identifying the origin station (e.g. 'urn:trainline:generic:loc:182gb' for London). Obtain from search_locations. |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/trainline/get-routes-from-station \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"station_urn":"<string>"}'
```

### Search journeys

Search for train journeys between two locations. Returns up to 8 available journeys with departure/arrival times, duration, distance, and CO2 emissions. Use station URNs from search_locations as origin and destination. Results are sorted by departure time. Each journey includes leg count for identifying direct vs connecting services.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `departure_date` | string | No | Departure date and optional time in ISO format. Accepts YYYY-MM-DD (time defaults to 09:00) or YYYY-MM-DDTHH:MM:SS. If omitted, defaults to tomorrow at 09:00 UTC. |
| `destination` | string | Yes | Destination station URN from search_locations (e.g. 'urn:trainline:generic:loc:115gb'). |
| `origin` | string | Yes | Origin station URN from search_locations (e.g. 'urn:trainline:generic:loc:182gb'). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/trainline/search-journeys \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"departure_date":"<string>","destination":"<string>","origin":"<string>"}'
```

### Search locations

Search for train station locations by name. Returns station URNs, coordinates, and metadata. Each station has a URN that uniquely identifies it and can be used as origin or destination in search_journeys. Results include both individual stations and station groups (e.g. 'London' encompasses multiple terminals). Partial name matching is supported.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `query` | string | Yes | Station name or partial name to search for (e.g. 'London', 'Manchester', 'Paris'). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/trainline/search-locations \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"query":"<string>"}'
```

## Next steps

- [All wrapped API providers](https://paywithlocus.com/wapi/index.md): pick another provider.
- [Find and call tools](https://paywithlocus.com/agent/tools.md): price ceilings, async results, and errors.
- [Credits and billing](https://paywithlocus.com/agent/billing.md): what a call costs and how to add credits.
- [Agent docs index](https://paywithlocus.com/agent/index.md): every Locus agent page.