Adds opt-in distributed tracing via OpenTelemetry for observability into
FastMCP server and client operations.
Server spans are created for tool calls, resource reads, and prompt
renders with attributes like component key, component type, provider
type, session ID, and auth context. Client spans wrap outgoing calls
with trace context propagation via W3C headers in request meta.
Components provide their own span attributes through a `get_span_attributes()`
method that subclasses override - this lets LocalProvider, FastMCPProvider,
and ProxyProvider each include relevant context (original names, backend URIs).
To enable: configure an OpenTelemetry SDK with a TracerProvider before
importing fastmcp. Traces export to any OTLP-compatible backend.
Closes ENG-2813
🤖 Generated with Claude Code
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix: skip TextIO log file test on Windows
Avoids PytestUnraisableExceptionWarning caused by ProactorEventLoop
cleanup timing issues with subprocess pipe transports.
* Use WindowsSelectorEventLoopPolicy to fix Windows test warnings
Re-add the SelectorEventLoop fix from bcd2e594 that was inadvertently
removed in cf101c2a. This fixes ProactorEventLoop cleanup warnings
on Windows CI without needing to skip individual tests.
* Checkpoint progress
* Checkpoint progress
* add derive b64 method
* PR clean-up
* refactor da proxy
* Updates to tests
* Make jwt_signing_key required for oauth proxy
* use typing_extensions and fix tests
* PR Cleanup
* also adjust integration tests
* Update docs, use client secret to derive jwt signing key
* You win some you lose some, gg claude
* check for both in derive
* update documentation / clean up
* Update http.mdx
---------
Co-authored-by: Jeremiah Lowin <153965+jlowin@users.noreply.github.com>
* Add comprehensive keyring integration tests
Prevents OS keyring pollution during testing by adding a global mock in
conftest.py. Tests verify keyring behavior across platforms and fallback
scenarios without writing to the actual system keyring.
- Add global mock_keyring fixture to tests/conftest.py
- Add TestOAuthProxyKeyring class with 6 keyring-specific tests
- Remove try/except ImportError for keyring (now required dependency)
- Add keyring extra to py-key-value-aio dependency
- Clean up extraneous implementation comments in oauth_proxy.py
* Update OAuth keyring documentation
Update all OAuth-related documentation to reflect keyring-based key management:
- Add version badges to jwt_signing_key, token_encryption_key, and client_storage parameters
- Standardize "Default behavior (`None`):" formatting with backticks
- Ensure consistent messaging about development-only defaults across all docs
- Update oauth-proxy.mdx, oidc-proxy.mdx, http.mdx, storage-backends.mdx, and upgrade-guide.mdx
- Add pytest marker for integration tests
- Configure automatic marking for tests/integration_tests/ folder via pytest hook
- Split CI workflow into two jobs: regular tests (all platforms) and integration tests (Ubuntu only)
- Integration tests can now be retried independently if they fail
