---
title: "Check if a bike is stolen"
method: POST
path: "/api/mcp/stolen-check"
tags: ["MCP API"]
---

# Check if a bike is stolen

`POST /api/mcp/stolen-check`

## Request

- Base URL: `https://www.cyclesite.co.uk`
- URL: `https://www.cyclesite.co.uk/api/mcp/stolen-check`
- Auth: none required

Check a frame/serial number against a stolen-bike registry and rider-filed theft reports. Returns status (clear/caution/stolen) with confidence level. No authentication required. Per-serial rate limited.

## Request body

- object
  - `serial` string, required: Bike frame/serial number

## Response `200`

Stolen check result

- object
  - `action` string, required
  - `attribution` string, required
  - `checkedAt` string, required
  - `citationUrls` object, required: Serial-free anchored URLs so an assistant can cite the specific claim it makes
    - `databases` string, required
    - `interpretingResults` string, required
    - `methodology` string, required
    - `reportStolen` string, required
  - `confidence` number, required
  - `confidenceLabel` 'high' | 'medium' | 'low', required
  - `message` string, required
  - `sourcesChecked` number, required
  - `status` 'clear' | 'caution' | 'stolen', required
  - `url` string, required

## Other responses

- `429`: Rate limited (per-IP and per-serial)

---

[API](https://skmtc.dev/cyclesite/apis/cyclesite-public-api.md) · [All operations](https://skmtc.dev/cyclesite/apis/cyclesite-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cyclesite/apis/cyclesite-public-api/revisions/a0dc604cce71?raw)