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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
Christian Tzolov 9d58621918
 feat: implement MCP protocol version per transport support (#404) 
- Add protocolVersion() method to transport and transport provider interfaces and implementations
- Replace hardcoded HTTP header strings with HttpHeaders constants
- Update protocol versions to be transport-specific rather than global
- Deprecate McpSchema.LATEST_PROTOCOL_VERSION in favor of transport-specific versions
- Standardize header names: MCP-Protocol-Version, mcp-session-id, last-event-id
- Update clients and servers to use transport.protocolVersion() for initialization
- Refactor tests to use transport-specific protocol versions
- Include MCP-Protocol-Version header in all GET/POST/DELETE requests
- Update WebClientStreamableHttpTransport, WebFluxSseClientTransport,
  HttpClientSseClientTransport, and HttpClientStreamableHttpTransport

Related to #398 , #363 , #250

Signed-off-by: Christian Tzolov <christian.tzolov@broadcom.com>
2025-07-30 23:54:28 +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: implement MCP protocol version per transport support (#404) 2025-07-30 23:54:28 +02:00
mcp-bom Next development version 2025-05-12 15:04:05 +02:00
mcp-spring feat: implement MCP protocol version per transport support (#404) 2025-07-30 23:54:28 +02:00
mcp-test feat: Add Spring WebMVC streamable server transport provider (#425) 2025-07-30 14:38:16 +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 feat: add structured output support for MCP tools (#357) 2025-07-13 15:29:56 +02:00
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

README.md

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

Links

License

This project is licensed under the MIT License.