fastmcp/examples/auth/keycloak_oauth/README.md

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# Keycloak OAuth Example
Demonstrates FastMCP server protection with Keycloak OAuth.
**Requires Keycloak 26.6.0 or later** with Dynamic Client Registration enabled.
## Setup
1. Configure a Keycloak realm with Dynamic Client Registration enabled and a trusted host policy for your server URL (e.g. `http://127.0.0.1:8000/*`).
2. Set environment variables:
```bash
export KEYCLOAK_REALM_URL="http://localhost:8080/realms/your-realm"
```
3. Run the server:
```bash
python server.py
```
4. In another terminal, run the client:
```bash
python client.py
```
The client will open your browser for Keycloak authentication.