---
title: "Reference"
description: "Use the current API contract and supported developer tools."
---

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

# Reference

Choose the reference that matches the code you maintain.

- **API reference** — Inspect each path, parameter, request body, response, and error in the current API contract.

[Open the API reference](/api/)
- **TypeScript SDK** — Use the supported server client for typed requests, pagination, idempotency, and webhook verification.

[Open the SDK guide](/guides/reference/sdks/)

## Version source

Affinity generates the API reference from the current Pier contract. The SDK pins its supported API version.

Pin direct HTTP requests to the dated version in the [authentication guide](/guides/authentication/).

Source: https://docs-staging.affinityrx.com/guides/reference/index.mdx