> ## Documentation Index
> Fetch the complete documentation index at: https://docs.quoindata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API reference

> Endpoints of the Quoin Property API v4.

**Base URL:** `https://portal.quoindata.com/api/v4`. Every endpoint is `GET` and needs `Authorization: Bearer <API key>`.

| Group | Endpoints | Billing |
| - | - | - |
| Lookups | [`find`](/api-reference/lookups/find-entities), [`catalog`](/api-reference/lookups/list-sources), [`connected`](/api-reference/lookups/get-connected-entities) | Free |
| Property data | [`records`](/api-reference/property-data/list-records), [`summary`](/api-reference/property-data/get-property-summary), [`history`](/api-reference/property-data/get-record-history) | Billable |
| Search | [`search`](/api-reference/search/search-records) | Billable per page with results |

Start with [Requests and responses](/api-basics/requests-and-responses) for the envelope and headers, and [Errors](/api-basics/errors) for error codes. The [OpenAPI spec](https://portal.quoindata.com/api/openapi.json) describes every endpoint in machine-readable form.


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