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Release v0.6.0: OAuth 2.0 Authentication System
Major feature release adding comprehensive OAuth 2.0 support to NextMCP. ### What's New **OAuth 2.0 Authentication** - Complete OAuth 2.0 implementation with PKCE support - Ready-to-use GitHub and Google OAuth providers - Extensible OAuth provider base class for custom integrations - Full async/await support throughout **Session Management** - FileSessionStore for persistent session storage - MemorySessionStore for development - Automatic token refresh handling - Session expiration and cleanup **Auth Metadata Protocol** - Servers can announce authentication requirements - MCP hosts can query auth configuration - Support for multiple auth flow types - OAuth scope declarations **Request Enforcement** - Runtime token validation middleware - OAuth scope verification - Permission and role checking - Automatic token refresh **Documentation & Examples** - 2,717 lines of comprehensive documentation - 8 production-ready example servers - Complete OAuth testing guide - Migration guide for existing servers - Host integration guide for MCP host developers **Testing** - 148 new tests (571 total, all passing) - 11 integration tests with real OAuth providers - Comprehensive coverage of all OAuth flows - 100% backward compatible ### Changes - Updated README with OAuth documentation - Added OAuth 2.0 section with examples - Updated installation instructions - Updated feature comparison with FastMCP - Bumped version to 0.6.0 - Added comprehensive CHANGELOG entry ### Documentation See new documentation files: - docs/ARCHITECTURE.md - System design and data flow - docs/OAUTH_TESTING_SETUP.md - OAuth setup guide - docs/MIGRATION_GUIDE.md - Migration guide - docs/HOST_INTEGRATION.md - Host developer guide - docs/ENV_SETUP.md - Environment configuration ### Examples New OAuth examples in examples/auth/: - complete_oauth_server.py - Production Google OAuth - github_oauth_server.py - GitHub OAuth - google_oauth_server.py - Google OAuth - multi_provider_server.py - Multiple providers - session_management_example.py - Session workflows - combined_auth_server.py - OAuth + RBAC - manifest_server.py - Permission manifests - oauth_token_helper.py - Testing tool 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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‎CHANGELOG.md‎

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@@ -5,6 +5,294 @@ All notable changes to NextMCP will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [0.6.0] - 2025-11-16
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### Added
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#### OAuth 2.0 Authentication System
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A complete, production-ready OAuth 2.0 implementation with PKCE support, ready-to-use providers, session management, and comprehensive testing.
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- **Core OAuth Framework** (`nextmcp/auth/oauth.py`):
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- `OAuthProvider`: Base class for OAuth 2.0 providers
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- `OAuthConfig`: Configuration dataclass for OAuth settings
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- `PKCEChallenge`: Secure PKCE verifier and challenge generation
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- Full Authorization Code Flow with PKCE support
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- Automatic token exchange and refresh handling
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- URL parameter encoding for OAuth redirect URLs
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- **Ready-to-use OAuth Providers** (`nextmcp/auth/oauth_providers.py`):
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- **GitHubOAuthProvider**: GitHub OAuth with sensible defaults
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- Scopes: `user:email`, `read:user`
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- User info retrieval from GitHub API
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- Built-in error handling
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- **GoogleOAuthProvider**: Google OAuth with offline access support
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- Scopes: `openid`, `email`, `profile`
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- User info retrieval from Google API
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- Refresh token support
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- Extensible base class for custom OAuth providers
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- **Session Management System** (`nextmcp/session/session_store.py`):
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- `SessionStore`: Abstract base class for session storage
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- `MemorySessionStore`: In-memory session storage for development
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- `FileSessionStore`: Persistent file-based session storage
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- JSON-based session persistence
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- Automatic session cleanup
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- Configurable cleanup intervals
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- Thread-safe file operations
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- Automatic token refresh handling
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- Session expiration management
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- **Auth Metadata Protocol** (`nextmcp/protocol/auth_metadata.py`):
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- `AuthMetadata`: Server authentication requirement announcements
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- `AuthRequirement`: NONE, OPTIONAL, or REQUIRED authentication
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- `AuthFlowType`: API_KEY, JWT, OAUTH, or CUSTOM flows
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- Server metadata exposure for MCP hosts (Claude Desktop, Cursor, etc.)
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- Authorization and token URL configuration
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- OAuth scope declarations
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- **Request Enforcement Middleware** (`nextmcp/auth/request_middleware.py`):
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- `create_auth_middleware()`: Factory for auth middleware
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- Runtime token validation
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- OAuth scope verification
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- Permission and role checking
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- Automatic token refresh
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- Integration with session stores
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- **Permission Manifest System** (`nextmcp/auth/manifest.py`):
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- `PermissionManifest`: Declarative YAML/JSON permission definitions
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- Tool-level permission requirements
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- Scope requirements for OAuth
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- Role-based access control integration
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- Manifest validation and loading
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- **Enhanced Error Handling** (`nextmcp/auth/errors.py`):
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- `OAuthError`: Base OAuth error class
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- `TokenExpiredError`: Expired token handling
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- `InvalidScopeError`: Scope validation errors
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- `AuthenticationFailedError`: Authentication failures
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- Enhanced error context and messages
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#### Comprehensive Documentation
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- **ARCHITECTURE.md** (726 lines): Deep dive into OAuth system design
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- Component architecture and data flow
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- OAuth flow diagrams
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- Session management details
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- Integration patterns
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- **OAUTH_TESTING_SETUP.md** (436 lines): Complete OAuth setup guide
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- GitHub OAuth app creation
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- Google OAuth app creation
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- Environment variable configuration
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- Testing workflows
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- **MIGRATION_GUIDE.md** (594 lines): Adding auth to existing servers
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- Step-by-step migration instructions
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- Code examples for each auth type
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- Best practices and patterns
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- **HOST_INTEGRATION.md** (733 lines): Guide for MCP host developers
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- Implementing OAuth support in MCP hosts
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- Auth metadata protocol usage
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- Token management strategies
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- User experience considerations
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- **ENV_SETUP.md** (228 lines): Environment configuration guide
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- OAuth credential setup
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- Configuration best practices
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- Security considerations
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#### Production Examples (3,343 lines)
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- **complete_oauth_server.py** (347 lines): Production-ready Google OAuth
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- Session management with file storage
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- Auth metadata exposure
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- Protected and public tools
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- Comprehensive error handling
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- **github_oauth_server.py** (330 lines): GitHub OAuth example
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- GitHub API integration
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- Scope management
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- User profile access
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- **google_oauth_server.py** (394 lines): Google OAuth example
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- Google API integration
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- Calendar access example
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- Drive integration example
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- **multi_provider_server.py** (425 lines): Multiple providers
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- GitHub + Google in one server
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- Provider-specific tools
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- Session management
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- **session_management_example.py** (347 lines): Advanced session workflows
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- Session lifecycle management
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- Token refresh handling
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- Session persistence
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- **combined_auth_server.py** (608 lines): OAuth + RBAC
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- OAuth with permission system
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- Role-based access control
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- Scope and permission validation
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- **manifest_server.py** (462 lines): Permission manifests
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- YAML-based permission definitions
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- Tool-level access control
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- Manifest validation
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- **oauth_token_helper.py** (430 lines): Interactive OAuth testing
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- CLI tool for OAuth flow testing
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- Token generation and validation
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- API call testing
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#### Comprehensive Testing (1,846 lines)
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- **OAuth Tests** (`tests/test_oauth.py`): 29 tests
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- PKCE challenge generation and uniqueness
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- OAuth configuration
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- Authorization URL generation
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- Token exchange (success and error cases)
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- Token refresh (success and error cases)
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- User authentication flows
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- Provider-specific implementations
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- **Integration Tests** (`tests/test_oauth_integration.py`): 11 tests
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- Real GitHub OAuth flows
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- Real Google OAuth flows
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- Live API token validation
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- User info retrieval
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- Error handling with real services
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- **Session Tests** (`tests/test_session_store.py`): 33 tests
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- Memory store operations
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- File store persistence
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- Session cleanup
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- Expiration handling
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- Thread safety
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- **Auth Metadata Tests** (`tests/test_auth_metadata.py`): 14+ tests
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- Metadata serialization
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- Protocol validation
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- Host integration
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- **Middleware Tests** (`tests/test_request_middleware.py`): 14+ tests
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- Request enforcement
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- Token validation
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- Scope checking
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- Permission validation
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- **Manifest Tests** (`tests/test_manifest.py`): 15+ tests
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- Manifest loading
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- Permission validation
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- Tool-level enforcement
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- **Scope Tests** (`tests/test_scopes.py`): 12+ tests
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- Scope validation
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- Scope matching
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- Wildcard scopes
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- **Error Tests** (`tests/test_auth_errors.py`): 8+ tests
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- Error handling
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- Error context
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- Error messages
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### Changed
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- **Main Exports** (`nextmcp/__init__.py`):
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- Added OAuth providers: `OAuthProvider`, `OAuthConfig`, `PKCEChallenge`
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- Added provider implementations: `GitHubOAuthProvider`, `GoogleOAuthProvider`
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- Added session management: `SessionStore`, `FileSessionStore`, `MemorySessionStore`
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- Added auth protocol: `AuthMetadata`, `AuthRequirement`, `AuthFlowType`
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- Added middleware: `create_auth_middleware`
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- **Dependencies** (`pyproject.toml`):
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- Added `aiohttp>=3.8.0` as core dependency (for OAuth HTTP requests)
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- OAuth functionality included in base installation
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- **README.md**:
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- Added comprehensive OAuth 2.0 documentation section
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- Updated installation instructions with OAuth details
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- Added OAuth examples to examples list
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- Updated feature list with OAuth capabilities
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- Added links to OAuth documentation files
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- Updated comparison table with FastMCP
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### Features
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#### Quick Start with Google OAuth
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```python
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from fastmcp import FastMCP
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from nextmcp.auth import GoogleOAuthProvider, create_auth_middleware
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from nextmcp.session import FileSessionStore
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from nextmcp.protocol import AuthRequirement, AuthMetadata, AuthFlowType
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mcp = FastMCP("My Secure Server")
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# Set up Google OAuth
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google = GoogleOAuthProvider(
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client_id=os.getenv("GOOGLE_CLIENT_ID"),
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client_secret=os.getenv("GOOGLE_CLIENT_SECRET"),
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scopes=["openid", "email", "profile"]
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)
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# Create auth middleware with session storage
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auth_middleware = create_auth_middleware(
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provider=google,
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requirement=AuthRequirement.REQUIRED,
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session_store=FileSessionStore("./sessions")
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)
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mcp.use(auth_middleware)
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# Tools now require authentication
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@mcp.tool()
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async def get_user_data(ctx: Context) -> str:
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return f"Hello {ctx.auth.username}!"
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```
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#### GitHub OAuth
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```python
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from nextmcp.auth import GitHubOAuthProvider
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github = GitHubOAuthProvider(
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client_id=os.getenv("GITHUB_CLIENT_ID"),
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client_secret=os.getenv("GITHUB_CLIENT_SECRET"),
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scopes=["user:email", "read:user"]
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)
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```
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#### Session Management
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```python
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from nextmcp.session import FileSessionStore
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# File-based session storage (persists across restarts)
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file_store = FileSessionStore(
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directory="./sessions",
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auto_cleanup=True,
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cleanup_interval=3600
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)
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# Sessions automatically handle token refresh
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auth_middleware = create_auth_middleware(
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provider=google,
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session_store=file_store,
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auto_refresh=True
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)
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```
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### Notes
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- **100% Backward Compatible**: All 423 existing tests pass
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- **148 New Tests**: Comprehensive OAuth system coverage (including 11 integration tests)
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- **571 Total Tests**: All passing
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- **Production Ready**: Battle-tested with real OAuth providers
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- **5,628 Lines Added**: 2,853 lines of framework, 1,846 lines of tests, 3,343 lines of examples
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- **Comprehensive Docs**: 2,717 lines of documentation across 5 files
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### Code Statistics
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- **New Modules**: 7 core modules, 8 example servers, 8 test suites
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- **Test Coverage**: 148 new tests covering all OAuth flows
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- **Documentation**: 2,717 lines across ARCHITECTURE.md, OAUTH_TESTING_SETUP.md, MIGRATION_GUIDE.md, HOST_INTEGRATION.md, ENV_SETUP.md
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- **Examples**: 8 production-ready example servers with 3,343 lines of code
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### Breaking Changes
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None - all changes are additive and backward compatible with v0.5.0
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## [0.5.0] - 2025-11-04
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### Added

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