# KVB Cologne — Wrapped API

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>
> 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.

> Check real-time departure schedules and find stop information for Cologne's public transit system, including trams, buses, and regional trains. Search for any stop across the KVB network to get live transit data.

**Category:** Travel | **Website:** [www.kvb.koeln/](https://www.kvb.koeln/) | **Docs:** [parse.bot/marketplace/9e64e4de-0921-48de-adaf-186ed534b0ee/kvb-koeln-api](https://parse.bot/marketplace/9e64e4de-0921-48de-adaf-186ed534b0ee/kvb-koeln-api)

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

## Access

**Base URL:** `https://api.beta.paywithlocus.com/api/wrapped/credits/kvb-cologne/`
**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 departures

Get real-time departure or arrival schedule for a transit stop. Includes line number, direction, scheduled and real-time times, delay calculation, and platform information. Either stop_name or stop_id must be provided; stop_id (from search_stops) is preferred for precision. Results are sorted by real-time. Delay is computed client-side from scheduled vs real-time; null when no real-time data is available.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `max_journeys` | integer | No | Maximum number of departures/arrivals to return |
| `stop_id` | string | No | Stop external ID from search_stops results (e.g. '900000002'). Either stop_name or stop_id is required. |
| `stop_name` | string | No | Stop name (e.g. 'Neumarkt', 'Dom/Hbf'). Either stop_name or stop_id is required. |
| `type` | string | No | Board type: 'DEP' for departures or 'ARR' for arrivals |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/kvb-cologne/get-departures \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"max_journeys":"<integer>","stop_id":"<string>","stop_name":"<string>","type":"<string>"}'
```

### Search stops

Search for transit stops/stations by name. Returns matching stops with their IDs, coordinates, and available transit lines. Useful for resolving a human-readable name to a stop ID required by get_departures. Results may span the entire NRW transit network, not just Cologne city limits.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `max_results` | integer | No | Maximum number of results to return |
| `query` | string | Yes | Stop name to search for (e.g. 'Neumarkt', 'Dom/Hbf', 'Rudolfplatz') |

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

## Next steps

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