Skip to content

AIML-2969 Feature/internal/mcp transport context for http servlet sse server transport provider #6

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Conversation

stantonk
Copy link
Collaborator

NOTE: this is also a pending PR to upstream (modelcontextprotocol#477), but we can't wait.

Implements modelcontextprotocol#476.

Motivation and Context

modelcontextprotocol#420 introduced McpTransportContext.

McpTransportContext should be supported in HttpServletSseServerTransportProvider to enable those who are still on that transport to leverage McpTransportContext to set attributes that Tools, etc. have access to. This is crucial for implementing Authentication & Authorization at the Tool level.

Current Behavior

McpTransportContext is absent from HttpServletSseServerTransportProvider

Context

How has this issue affected you?

We're not able to switch to HttpServletStreamableServerTransportProvider yet, but wish to use McpTransportContext instead of our custom built similar capability.

What are you trying to accomplish?

Authn/z at Tool level.

How Has This Been Tested?

  • In a langchain4j agent application calling into a Dropwizard application serving MCP using HttpServletSseServerTransportProvider
  • directly by testing a Dropwizard application serving MCP using HttpServletSseServerTransportProvider
  • Integration tests included with PR

Breaking Changes

No, use of the McpTransportContext is optional.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

None

david-huber
david-huber previously approved these changes Aug 12, 2025
<artifactId>mcp-parent</artifactId>
<version>0.12.0-SNAPSHOT</version>
<version>0.12.0-sprout</version>
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

nit: why not SNAPSHOT?

Copy link
Collaborator Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@david-huber actually i wasn't sure if we even can or should push SNAPSHOT into nexus. I am thinking this should just be 0.12.0 or 0.12.0-rc1 or something?

@stantonk stantonk force-pushed the feature/internal/McpTransportContext-for-HttpServletSseServerTransportProvider branch from 12f49fb to 7a4e9b9 Compare August 13, 2025 05:35
@stantonk stantonk changed the title Feature/internal/mcp transport context for http servlet sse server transport provider AIML-2969 Feature/internal/mcp transport context for http servlet sse server transport provider Aug 13, 2025
@stantonk stantonk merged commit 63fad71 into main Aug 13, 2025
4 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Development

Successfully merging this pull request may close these issues.

4 participants