Anthropic¶

The anthropic component connects to the Anthropic Messages API.

Configuration¶

components:
  - name: claude
    type: anthropic
    metadata:
      default_model: claude-opus-4-7
      api_key: sk-ant-...   # or set ANTHROPIC_API_KEY env var
    models:                 # optional: per-model API key overrides
      claude-haiku-4-5-20251001:
        api_key: sk-ant-haiku-key
    defaults:
      temperature: 1.0
      max_tokens: 4096
      top_p: 0.9
      top_k: 50
      stop: ["Human:"]
      system: "You are a helpful assistant."

Metadata reference¶

Key	Required	Description
`default_model`	yes (or `model`)	Model used when the request doesn't specify one
`api_key`	no	Falls back to `ANTHROPIC_API_KEY` environment variable

Supported parameters¶

Parameter	Supported	Notes
`temperature`	✓
`max_tokens`	✓	Defaults to 4096 if not set
`top_p`	✓
`top_k`	✓	Anthropic-specific — ignored by other providers
`stop`	✓
`frequency_penalty`	—	Not supported; ignored
`presence_penalty`	—	Not supported; ignored
`seed`	—	Not supported; ignored
`system`	✓
`tools`	✓

Models¶

Model	Notes
`claude-opus-4-7`	Most capable
`claude-sonnet-4-6`	Balanced performance
`claude-haiku-4-5-20251001`	Fastest and cheapest

System prompt handling¶

Anthropic supports multiple system messages. When daimon resolves the effective system prompt, it follows this precedence:

system field in the request (highest priority)
A role: system message in messages[]
defaults.system in the component config (lowest priority)

If both a system field and a system-role message are present, they are concatenated.