Create message
Messages
Create message
Anthropic-compatible Messages endpoint. Claude Code, the Claude Agent SDK, and the Anthropic SDK connect here — and every gateway model answers, not just Claude.
POST
Create message
Authorizations
Your AI Reserve API key (aireserve_api_…) from Profile → My API Keys in the portal.
Body
application/json
The body is of type object.
Response
200
Default Response