OpenAPI 3.0.0raw.githubusercontent.com2026-08-14109177407.7 KB

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messages

Create a message (Anthropic Messages API)

post/v1/messages

Request body

cache_controlobject
max_tokensinteger
modelstring
stop_sequencesstring[]
streamboolean
temperaturenumber
top_kinteger
top_pnumber

Response

JSON response or SSE stream when stream=true

idstring
modelstring
rolestring
stop_reasonstring
stop_sequencestring
typestring