# Messages API reference

Endpoint reference for creating Claude messages\.

Canonical: https://claudelist.com/listings/claude-api-reference

Category: SDKs & APIs

Source: official · Anthropic

Source checked: 2026-10-14

Website: https://platform.claude.com/docs/en/api/messages

Consult the canonical endpoint documentation for the current request and response contract.

## Install or set up

1. Create an Anthropic API key, install an official SDK or use HTTPS requests, and follow the linked Messages API reference. No separate reference package is needed.

Installation guide: https://platform.claude.com/docs/en/api/messages