Connect Anthropic
With Anthropic as the model provider, Faustine calls the Anthropic API with your own key. One key covers analysis, updates, the Advanced editor and chat, and Anthropic bills the usage to your account.
Before you begin
- An Anthropic API key. Create one in the Claude Console.
- For knowledge, an OpenAI API key. Anthropic has no embeddings API.
Connect Anthropic
To connect:
- In the portal, go to Settings > Model Provider and select Configure a provider.
- In Provider, select Anthropic.
- In Credentials, enter the key in Anthropic API key and select Continue.
- In Embeddings, select OpenAI API key and enter the Model and the API key, or select Not configured. See Choose an embeddings provider.
- Select Continue.
- In Review & save, select Test connection.
- Select Save & activate.
The tab shows the Anthropic card with an Active badge. The chat models an agent can pick come from the list Anthropic returns for your key.
What the validation checks
Test connection and the save both send the key to Anthropic's models endpoint, which costs no tokens.
| Result | Meaning |
|---|---|
| Credentials verified | Anthropic accepted the key. |
The Anthropic API key was rejected by the provider (invalid or revoked) |
Anthropic answered 401 or 403. The configuration is not saved. |
Could not reach Anthropic to verify the key |
Anthropic did not answer. The test cannot tell whether the key works. |
If embeddings are configured, the test also sends one embeddings request and reports Embeddings working or the reason it failed.
Replace the key
To rotate the key, select Edit in the Credentials row, enter the new key and save. Leaving Anthropic API key (optional) empty keeps the stored key.
Next steps
- Model providers: status, test and the other providers.
- Choose an embeddings provider: turn on knowledge.
- Choose the chat model: pick the Claude model an agent answers with.
Last updated November 13, 2026