Mirror of https://github.com/modelcontextprotocol/java-sdk — The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI
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Filename Latest commit message Latest commit date
Kevin Stanton d30480d618 feat: Add transport context extraction support to all MCP servers (#477)
- Add McpTransportContextExtractor to WebFlux/WebMVC SSE and Streamable transport providers
- Enable extraction of HTTP transport metadata (headers, etc.) for use during request processing
- Pass transport context through reactive context chain using McpTransportContext.KEY
- Add contextExtractor() builder methods for configuring custom extractors
- Update HttpServlet transport providers with same context extraction capability
- Modify McpServerSession to properly propagate transport context to handlers
- Add test coverage with TEST_CONTEXT_EXTRACTOR in integration tests

This allows MCP feature implementations to access HTTP transport level metadata
that was present at request time, enabling use cases like authentication,
request tracing, and custom header processing.

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>

Co-authored-by: Christian Tzolov <christian.tzolov@broadcom.com>
Co-authored-by: Dariusz Jędrzejczyk <dariusz.jedrzejczyk@broadcom.com>
2025-08-26 18:33:39 +02:00
.github Add CI GitHub Action and rename snapshot publish workflow 2025-03-18 13:37:49 +01:00
.mvn/wrapper initial 2024-12-06 16:41:17 +01:00
mcp feat: Add transport context extraction support to all MCP servers (#477) 2025-08-26 18:33:39 +02:00
mcp-bom Next development version 2025-08-11 07:06:52 +01:00
mcp-spring feat: Add transport context extraction support to all MCP servers (#477) 2025-08-26 18:33:39 +02:00
mcp-test feat: Add transport context extraction support to all MCP servers (#477) 2025-08-26 18:33:39 +02:00
.gitattributes initial 2024-12-06 16:41:17 +01:00
.gitignore Rename modules, update .gitignore 2024-12-10 18:46:49 -05:00
CODE_OF_CONDUCT.md Add Contributing Guidelines and Code of Conduct 2025-05-16 11:47:39 +02:00
CONTRIBUTING.md Add note about force pushes 2025-05-16 11:47:39 +02:00
LICENSE Update license text and GH actions 2025-01-28 14:36:31 +01:00
migration-0.8.0.md refactor: introduce session-based architecture for MCP server (#31) 2025-03-20 21:49:51 +01:00
mvnw initial 2024-12-06 16:41:17 +01:00
mvnw.cmd initial 2024-12-06 16:41:17 +01:00
pom.xml Next development version 2025-08-11 07:06:52 +01:00
README.md typo fix 2025-06-26 13:45:52 +02:00
SECURITY.md Add Contributing Guidelines and Code of Conduct 2025-05-16 11:47:39 +02:00

MCP Java SDK

Build Status

A set of projects that provide Java SDK integration for the Model Context Protocol. This SDK enables Java applications to interact with AI models and tools through a standardized interface, supporting both synchronous and asynchronous communication patterns.

📚 Reference Documentation

MCP Java SDK documentation

For comprehensive guides and SDK API documentation

Spring AI MCP documentation

Spring AI MCP extends the MCP Java SDK with Spring Boot integration, providing both client and server starters. Bootstrap your AI applications with MCP support using Spring Initializer.

Development

Building from Source

./mvnw clean install -DskipTests

Running Tests

To run the tests you have to pre-install Docker and npx.

./mvnw test

Contributing

Contributions are welcome! Please follow the Contributing Guidelines.

Team

  • Christian Tzolov
  • Dariusz Jędrzejczyk

License

This project is licensed under the MIT License.