* feat(client): add complete MCP client SDK with STDIO and HTTP transports
Add Client, Builder, ClientProtocol, ClientSession, and transport
implementations for communicating with MCP servers. Supports tools, resources, prompts, and real-time progress/logging notifications.
* refactor(examples): reorganize examples into server/ and client/ folders
* feat: add SamplingRequestHandler for handling server sampling requests
* feat: add setLoggingLevel method to control server logging verbosity
* refactor: make progress token dependent on request ID
* docs: Update server IP in usage instructions and add notes on sampling server requirements.
* feat: add complete() method for completion/complete requests
* refactor: properly parse and type initialize result
* refactor: standardize method names
* fix: revert changes to server related components
* fix: revert changes to server related components
* refactor: Restructure client transports and handlers into dedicated namespaces.
* fix: cs and php-stan errors fixes(partial)
* feat: Refactor request handlers to return `Response` or `Error` objects directly, adding a `SamplingException` and error logging for sampling requests.
* feat: Replace `ClientTransportInterface` with `TransportInterface` and move response result deserialization to client methods.
* refactor: remove redundant timeout check for intialize on transports
The processFiber that executes per tick while fiber is suspended already handles timeouts while waiting
* feat: broaden symfony/http-client dependency to support Symfony 5.4 to 8.0
* Update examples/client/README.md
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* Update examples/client/README.md
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* refactor: remove outgoing message queue from session and simplify transport send method to directly dispatch messages.
* refactor: Replace ClientSession with ClientState for clearer intent on runtime state management
* refactor: rename connectAndInitialize to connect for consistency
* chore: cs fix
* chore: use SamplingCallbackInterface instead of a closure for sampling request handler
---------
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* Add Middleware handlers to StreamableHttpTransport
* OAuth Implementation based on middleware
* OAuth Implementation based on middleware
* Add Middleware handlers to StreamableHttpTransport
* OAuth Implementation based on middleware
* OAuth Implementation based on middleware
Signed-off-by: Volodymyr Panivko <sveneld300@gmail.com>
* Address PR review feedback for OAuth middleware
* Apply php-cs-fixer to satisfy QA
* Use Mcp exception classes in OAuth middleware
* Refactor OAuth HTTP stack and add Microsoft example policies
* Fix QA PHPStan findings in OAuth examples and auth middleware
* Require OIDC discovery in JWKS provider and refine OAuth proxy behavior
* Remove local development docker artifacts from VCS
* Revert .gitignore changes for local docker files
* Fix body retrieval in OAuthRequestMetaMiddleware for proper string conversion
Signed-off-by: Volodymyr Panivko <sveneld300@gmail.com>
* Address OAuth PR review feedback and align example configs
* Fix QA style issues and add authorization docs
* Fix PHPStan typing issues in OAuth middleware
* Remove duplicate Middleware namespace, consolidate under Http\Middleware
Remove old Mcp\Server\Transport\Middleware\ classes that were duplicated
in Mcp\Server\Transport\Http\Middleware\ and Http\OAuth\. Update docs
to reference the correct namespaces.
* Address PR review: replace Throwable catch with specific exceptions, add JSON_THROW_ON_ERROR
- JwtTokenValidator: replace catch(\Throwable) with explicit
\InvalidArgumentException|\UnexpectedValueException|\DomainException,
letting RuntimeException from JwksProvider propagate as infrastructure errors
- OAuthProxyMiddleware: add \JSON_THROW_ON_ERROR to json_encode for metadata response
- Update tests to expect RuntimeException for JWKS infrastructure failures
---------
Signed-off-by: Volodymyr Panivko <sveneld300@gmail.com>
Co-authored-by: Volodymyr Panivko <volodymyr.panivko@togethernetworks.com>
- Add ElicitAction enum (accept/decline/cancel)
- Add schema definitions for elicitation fields (string, number, boolean, enum)
- Add ElicitationSchema wrapper for requestedSchema
- Add ElicitRequest and ElicitResult for elicitation/create method
- Update ClientCapabilities to support elicitation capability
- Add elicit() method to ClientGateway
- Store client capabilities in session during initialization
- Add comprehensive unit tests
- Add elicitation example server with book_restaurant, confirm_action, and collect_feedback tools
* fix: standardize error handling across handlers with MCP specification compliance
* Update mcp-elements.md
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* docs: clarify error handling behavior for all element types
* docs: remove unnecessary whitespace in mcp-elements.md
* fix: simplify exception signatures to accept simple messages
* refactor: use specific exceptions in examples for better error handling
* feat: throw exceptions from reference provider instead of returning null
---------
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* feat: make CORS headers configurable in StreamableHttpTransport
* docs: add CORS configuration documentation for HTTP transport
* refactor: streamline request creation and transport initialization in HTTP client example
* feat(server): add bidirectional client communication support
* fix(server): use correct session ID string conversion method
* fix: clean up docblocks for request handler methods in Builder
* fix: merge artifacts
* feat: replace connect/listen flow with run lifecycle
* feat(transport): add phpstan generics for typed transport returns
* refactor: standardize variable naming for MCP server instances in transport handling
* test: remove unnecessary phpstan-ignore annotation in DocBlockTestFixture
* docs: add more about building servers and updating front readme
* Overhaul documentation structure and content
* fix: remove redundant emoji on docs
* Remove composer install --dev hint
* Add linebreak to make it readable in IDE
* rebase after example renaming
---------
Co-authored-by: Kyrian Obikwelu <koshnawaza@gmail.com>
* refactor: integrate cache parameter into setDiscovery() method
- Add cache as 4th parameter to setDiscovery()
- Rename $cache to $discoveryCache for clarity
- Remove separate setCache() method
- Update example to use new API
* docs: update discovery caching documentation to use new API
- Update examples to use cache parameter in setDiscovery() method
- Remove references to separate setCache() method calls
* feat: implement discovery caching with state-based approach
- Add DiscoveryState class to encapsulate discovered MCP capabilities
- Add exportDiscoveryState and importDiscoveryState methods to Registry
- Modify Discoverer to return DiscoveryState instead of void
- Create CachedDiscoverer decorator for caching discovery results
- Add importDiscoveryState method to ReferenceRegistryInterface
- Update ServerBuilder to use caching with withCache() method
- Update tests to work with new state-based approach
- Add example demonstrating cached discovery functionality
- Add PSR-16 SimpleCache and Symfony Cache dependencies
* docs: add comprehensive discovery caching documentation
- Add detailed documentation explaining discovery caching architecture
- Include usage examples for different cache implementations
- Document performance benefits and best practices
- Add troubleshooting guide and migration instructions
- Include complete API reference for all caching components
- Fix PHPStan issues by regenerating baseline
- Apply PHP CS Fixer formatting to all new files
* refactor: address reviewer feedback and clean up discovery caching
- Make DiscoveryState class final
- Cache DiscoveryState objects directly instead of arrays (no serialization needed)
- Rename exportDiscoveryState/importDiscoveryState to getDiscoveryState/setDiscoveryState
- Add getDiscoveryState method to ReferenceRegistryInterface
- Remove TTL parameter from CachedDiscoverer (no expiration by default)
- Remove unused methods from DiscoveryState (toArray, fromArray, merge)
- Simplify ServerBuilder to handle decoration internally
- Make Discoverer.applyDiscoveryState() internal (no longer public API)
- Simplify documentation to focus on user perspective
- Remove unnecessary development comments
- Update all tests to work with new architecture
- All tests pass, PHPStan clean, code formatting applied
* refactor: clean up comments and formatting in server.php example
* refactor: improve code formatting and consistency in discovery classes and example server
* Fix method names in cached discovery example
- Change withServerInfo() to setServerInfo()
- Change withDiscovery() to setDiscovery()
- Change withLogger() to setLogger()
- Fixes PHPStan static analysis errors
* refactor: update method names in ServerBuilder for consistency
- Change withCache() to setCache() in ServerBuilder
- Update example and documentation to reflect method name changes
- Ensure consistency across caching implementation in examples and documentation
* refactor: reorganize examples and fix PHPStan baseline
- Move cached discovery example from examples/10 to examples/09
- Update composer.json autoload-dev namespace mapping
- Fix PHPStan baseline by removing invalid entries for non-existent files
- Update server.php to follow proper example pattern with logging and lifecycle
* fix: correct formatting in server.php
- Remove ToolChain, ResourceChain, PromptChain classes
- Remove Collection/Identifier/Metadata interfaces (only used by old Chains)
- Remove ToolCollectionInterface (unused)
- Delete obsolete examples 09-standalone-cli and 10-simple-http-transport
- Fix STDERR handling in bootstrap.php for web environments
- Clean up CHANGELOG.md
* feat(server): Rework transport architecture and add StreamableHttpTransport
- `Server::connect()` no longer contains a processing loop.
- `TransportInterface` is updated with `setMessageHandler()` and `listen()`.
- `StdioTransport` is updated to implement the new interface.
- A new, minimal `StreamableHttpTransport` is added for stateless HTTP.
* refactor(server): use event-driven message handling
* feat(server): Introduce a formal session management system
* fix: ensure session elements are preserved when building server (regression from #46)
* refactor: consolidate HTTP example to use shared dependencies
* feat(server): Enhance message handling with session support
- Updated `TransportInterface` to use `onMessage` for handling incoming messages with session IDs.
- Refactored `Server`, `Handler`, and transport classes to accommodate session management using `Uuid`.
- Introduced methods for creating sessions with auto-generated and specific UUIDs in `SessionFactory` and `SessionFactoryInterface`.
* feat(server): Integrate session management in message handling
- Added session support to the `Server` and `Handler` classes, allowing for session data to be managed during message processing.
- Updated `TransportInterface` to include session context in the `send` method.
- Refactored various request handlers to utilize session information, ensuring proper session handling for incoming requests.
- Introduced a file-based session store for persistent session data management
* feat: Update session builder method to use set* instead of with*
* feat: Fix test compatibility with new session management architecture
* chore: apply code style fixes
* fix: remove deprecated SSE transport and resolve PHPStan issues
* refactor: Separate Registry concerns following SOLID principles [WIP]
- Extract ReferenceProvider and ReferenceRegistryInterface interfaces
- Create DefaultToolExecutor with ReferenceHandlerInterface
- Remove execution responsibility from Registry class
- Enable custom handler and executor implementations
* refactor: implement SOLID principles with separated execution concerns
* Create DefaultResourceReader, DefaultPromptGetter
* Refactor JsonRpc Handler and RequestHandlers to use dedicated executors
* Update ServerBuilder to support custom executors via dependency injection
* chore: remove extra comments
* feat: introduce DispatchableRegistry for enhanced tool and resource management
* refactor: use proper interfaces
* refactor: implement HandlerInterface for improved abstraction and flexibility
* test: add unit tests for DispatchableRegistry and Registry classes
* refactor: cover with unit tests Resource reader, Prompt getter and Tool executor
* cs fix
* phpstan fix
* test: add unit tests for CallToolHandler, GetPromptHandler, PingHandler, and ReadResourceHandler
* refactor: revert Handler
* chore: remove style guide for tests
* refactor: remove "Default" prefix from classes
* refactor: remove DispatchableRegistry
* refactor: use package specific exception classes
* refactor: remove DispatchableRegistry
* refactor: add logger support to PromptGetter and ResourceReader classes
* Update src/Capability/Prompt/PromptGetter.php
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* refactor: Use FQN for Resource class to avoid cs-fixer misinterpreting it as `resource`
* refactor: rename ToolExecutor to ToolCaller and related classes for clarity and consistency
* refactor: add missed docblock
* refactor: rename ToolExecutor references to ToolCaller
* refactor: rename ToolCallerTest property and variable references
* cs fix
* ignore some phpstan errors
---------
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
- Fix grammar in doc/index.rst: "There two types" → "There are two types"
- Fix grammar in doc/index.rst: "if non of" → "if none of"
- Fix grammar in phpstan.dist.neon: "This errors" → "These errors"
- Fix grammar in examples/09-standalone-cli/README.md: "test add" → "test by adding"
- Fix sentence structure in examples/README.md for better readability
Signed-off-by: Oskar Stark <oskarstark@googlemail.com>
