Create an Anthropic-compatible message | BeatAPI API Documentation

Anthropic Messages-compatible endpoint. Send the BeatAPI key with x-api-key or Bearer authentication.

x-api-keystring

Anthropic-compatible API key header. Use a BeatAPI API key.

AuthorizationBearer

Send your API key as Authorization: Bearer <BEATAPI_API_KEY>.

This endpoint expects an object.

modelstringRequired

Public text model id exposed by BeatAPI. Call GET /v1/models to discover the models enabled for your environment.

Anthropic-compatible JSON response or server-sent event stream

401

Unauthorized Error

402

Payment Required Error

429

Too Many Requests Error

502

Bad Gateway Error

503

Service Unavailable Error

$	curl -X POST https://api.beatapi.io/v1/messages \
>	-H "x-api-key: <apiKey>" \
>	-H "Content-Type: application/json" \
>	-d '{
>	"model": "gemini-3.6-flash",
>	"max_tokens": 1024,
>	"messages": [
>	{
>	"content": "Classify this support request and return JSON.",
>	"role": "user"
>	}
>	]
>	}'