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Create Message

Create a message using Anthropic's Claude API

Use it in a workflow

  1. Add a step and choose the Anthropic connector.
  2. Pick the Create Message action (under anthropic).
  3. Fill in the fields below, then reference the result from later steps as {{createMessage.response.data}}.

Fields

modelstringrequired

Model ID to use (e.g., claude-sonnet-5, claude-opus-5-5, claude-haiku-4-5-20251001)

messagesstringrequired

JSON array of messages (e.g., [{"role":"user","content":"Hello!"}])

maxTokensnumberrequired

Maximum tokens to generate

systemstring

System prompt or instructions for the model

temperaturenumber

Controls randomness (0-1, default: 1)

Default 1

topPnumber

Nucleus sampling (0-1, default: 1)

Default 1

stopSequencesstring

JSON array of stop sequences (e.g., ["\n", "END"])

streamboolean

Whether to stream the response

Default false

Need more? See the Anthropic guide for connection setup and behaviour shared by every action.

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Create Message — Anthropic — Documentation