LMRouterLMRouter Docs
Language Models

Messages API

Generate messages with LMRouter

The messages endpoint provided by LMRouter is compatible with the Anthropic messages endpoint. It is available at

https://api.lmrouter.com/anthropic/v1/messages

Please refer to the Anthropic messages endpoint for more information on how to use the messages endpoint.

Use with Claude Code

You are able to use the LMRouter Anthropic-compatible endpoint with Claude Code by setting the ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN environment variables. You are able to use any model provided by LMRouter with Claude Code:

ANTHROPIC_BASE_URL=https://api.lmrouter.com/anthropic \
ANTHROPIC_AUTH_TOKEN=$LMROUTER_API_KEY \
ANTHROPIC_MODEL=$MODEL_NAME claude

Create Chat Completions

Generate chat completions with LMRouter

Responses API

Generate responses with LMRouter