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Once connected, you reference a connector in any workflow step using an @mention — @Slack, @GoogleDrive, @OpenAI. Felix handles authentication, API calls, and response parsing automatically.

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How connectors work

Connect a service once. After that, it’s available across all your workflows. 
Fetch all contracts added to @GoogleDrive in the last 7 days.
Extract the key clauses from each one using @Anthropic.
Write the results to @GoogleSheets.
Felix uses the @mention to identify the right connector, call the correct APIs, and handle authentication — without you writing any integration code.

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Connector types

AI models — Anthropic, OpenAI, and Google Gemini are available in every Felix account by default. No setup required. See AI Models. Built-in connectors — Pre-built integrations with commonly used services. Connect them once from Settings → Connectors. See Built-in Connectors. Custom connectors — Connect any REST API not in the built-in list. Provide a name, your API credentials, and a description of what the API does. See Custom Connectors.

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Adding a built-in connector

  1. Go to Connectors in the sidebar menu
  2. Find the service you want to connect and click Connect
  3. Authenticate via OAuth or enter your API key
  4. Done — the connector is available in all your workflows
You can also connect a service mid-build. If you @mention a connector that isn’t connected yet, Felix will prompt you to authenticate before continuing.

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Managing your connectors

From Settings → Connectors you can:
  • See all connected services and their status
  • Reconnect a service if authentication has expired
  • Revoke access to a service at any time
Credentials are encrypted at rest. Felix only uses them when a workflow step requires it.

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Tips

  • AI models need no setup. @Anthropic, @OpenAI, and @Gemini work immediately in any step.
  • Connect your tools before building. Having connectors set up in advance means Felix can reference them without interrupting the build flow.
  • Use @mentions explicitly. @GoogleDrive is clearer than “my file storage” — Felix generates more accurate code when connectors are named directly.

Built-in Connectors

Browse all supported services

AI Models

Use Anthropic, OpenAI, and Gemini

Custom Connectors

Connect any REST API