> ## Documentation Index
> Fetch the complete documentation index at: https://phidatainc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Environment Variables

> Environment variables Agno reads: provider API keys, AgentOS security keys, CLI settings, and debug flags.

Agno reads configuration from environment variables. The ones you are most likely to need:

| Variable                                                   | Used by                  | Purpose                                                                                                         |
| ---------------------------------------------------------- | ------------------------ | --------------------------------------------------------------------------------------------------------------- |
| `OPENAI_API_KEY`                                           | SDK                      | Key for the default model (`OpenAIResponses`) and the default `OpenAIEmbedder`                                  |
| `ANTHROPIC_API_KEY`, `GOOGLE_API_KEY`, `GROQ_API_KEY`, ... | SDK                      | Each model provider reads its own key. See the provider's page in [Models](/models/overview) for the exact name |
| `OS_SECURITY_KEY`                                          | AgentOS                  | Bearer token for security key authentication                                                                    |
| `JWT_VERIFICATION_KEY`                                     | AgentOS                  | Public key or shared secret for JWT verification                                                                |
| `JWT_JWKS_FILE`                                            | AgentOS                  | Path to a JWKS file. Alternative to `JWT_VERIFICATION_KEY`                                                      |
| `AGENTOS_URL`                                              | CLI                      | AgentOS URL for `agno connect`, `agno status`, and `agno tokens`                                                |
| `AGNO_ADMIN_TOKEN`                                         | CLI                      | Admin credential for `agno connect` and `agno tokens`. Falls back to `OS_SECURITY_KEY`                          |
| `AGNO_DEBUG`                                               | SDK                      | Set to `true` to enable debug logging                                                                           |
| `AGNO_TELEMETRY`                                           | Agents, teams, workflows | Set to `false` to disable telemetry for these components. Configure AgentOS and eval telemetry per instance.    |

## Setting a Variable

<CodeGroup>
  ```shell macOS / Linux theme={null}
  export OPENAI_API_KEY="sk-..."
  ```

  ```powershell Windows (PowerShell) theme={null}
  $env:OPENAI_API_KEY = "sk-..."
  ```

  ```cmd Windows (Command Prompt) theme={null}
  set OPENAI_API_KEY=sk-...
  ```
</CodeGroup>

These last for the current shell session. To persist a variable, add the export line to your shell profile (`~/.zshrc`, `~/.bashrc`, or your PowerShell profile), or use `setx` on Windows.

## Next Steps

* [Models overview](/models/overview)
* [AgentOS security](/agent-os/security/overview)
* [Agno CLI](/cli/overview)