Anthropic's Claude models are the default for the coordinator and for most agent teams — best
reasoning quality of the four supported providers, paid (no free tier).

1. Go to console.anthropic.com and sign up.
2. Open API Keys and create a new key (starts with sk-ant-).
3. Add billing — Anthropic requires a small credit balance before a key can make requests.

Two ways in:

• First-run setup wizard — paste it into the Anthropic field; the wizard validates it with a cheap request before letting you continue.
• Settings → API Keys (any time after setup) — same field, same validation. Leave it blank to keep the current value.

Your key is encrypted (AES-256-GCM) before it's stored and is only ever used for requests your own
install makes to Anthropic — it never leaves your server.

| Model | Label |
|---|---|
| claude-opus-4-7 | Opus 4.7 |
| claude-sonnet-4-6 | Sonnet 4.6 |
| claude-haiku-4-5-20251001 | Haiku 4.5 |

Need a different Claude model id (a preview build, a dated snapshot)? Every picker has a **custom
model id** input at the bottom — type the exact id and press Enter. Nothing in the app restricts
you to the curated shortlist above.

The most common cause is running out of credits, not a bad key — see
API key errors for the exact message the app shows and what it means.

• Bring your own key / any model, any time
• Set an agent's model prompt template