Skip to main content
Bruno AI is available from v4.0.0 and higher. Turn it on under Preferences → AI → Configuration before configuring a provider.
Bruno connects directly to Anthropic using your API key. AI requests are not routed through Bruno servers.

​
Before you begin

You need an Anthropic API key. Create or manage keys in the Anthropic Console.
A Claude web subscription and Anthropic API usage are billed separately. Make sure your Anthropic Console account has API access and sufficient credits.

​
Connect Anthropic

  1. Open Preferences from the bottom-left corner of Bruno.
  2. Go to AI → Configuration.
  3. Turn on AI Features if it is not already enabled.
  4. Under Providers, expand Anthropic.
  5. Enter your Anthropic API Key.
  6. Click Save.
  7. Toggle the Anthropic provider on.
After the key is saved, Bruno masks it in the interface.
Bruno never stores your API keys.The keys stay on your machine and are not written to collections or Git. Bruno saves them locally in the same application-data folder as preferences.json, and they never leave your machine except when Bruno talks to the provider you configured.
  • macOS: ~/Library/Application Support/bruno/
  • Windows: %APPDATA%\bruno\
  • Linux: ~/.config/bruno/

​
Select Claude models

In the expanded Anthropic provider, use the checkboxes under Models to choose which Claude models are available in Bruno. The available defaults include:
  • Claude Opus 4.7
  • Claude Sonnet 4.6
  • Claude Haiku 4.5
Enabled models appear in model pickers for the AI Assistant and generation features. You can also select a model for inline autocomplete under Preferences → AI → Autocomplete.
Use a faster model such as Haiku for inline autocomplete and a more capable model such as Sonnet or Opus for chat, debugging, and generating complete scripts or tests.

​
Test the connection

After enabling the provider, click Test connection (the bolt icon) next to the saved API key.
  • Connection successful means Bruno can authenticate with Anthropic.
  • If the test fails, review the error and check the troubleshooting steps below.

​
Replace or remove the API key

Expand Anthropic, then use:
  • Replace key (pencil icon) to save a different key
  • Remove key (trash icon) to delete the saved key
Removing the key disables access to Anthropic until another valid key is saved.

​
Troubleshooting

​
Authentication failed

Confirm that the complete API key was copied from the Anthropic Console without leading or trailing spaces. Replace it in Bruno if the key was revoked or rotated.

​
Credit or rate-limit error

Check usage limits, credits, and billing in the Anthropic Console. Try again after the reported rate-limit window if the account has reached a temporary limit.

​
Models do not appear

Make sure:
  1. The API key has been saved.
  2. The Anthropic provider is enabled.
  3. At least one Claude model is selected under Models.

​
AI features remain unavailable

Confirm that the main AI Features toggle is enabled under Preferences → AI → Configuration.

​
Next steps