Skip to content

Feat: Add RFC 7523 (JWT Bearer Grant) support #875

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

Draft
wants to merge 1 commit into
base: main
Choose a base branch
from

Conversation

ZachGerman
Copy link

@ZachGerman ZachGerman commented Aug 14, 2025

Adds support for JWT Credentials passed to the OAuthClientProvider.

Motivation and Context

This provides support for machine-to-machine auth.

How Has This Been Tested?

TBD(Draft until tested)

Breaking Changes

  • Now requiring codeVerifier for token exchange, but I'm pretty sure it's desirable behavior since PKCE is required per MCP spec.

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 <- Need to check this

Additional context

Draft until tested end-to-end.
Bloated jwt-utils, as I was oiriginally going to add it to the built-in auth server, but did a 180. Not sure if I should scrap the unused bits or leave them there.

@ZachGerman ZachGerman force-pushed the RFC-7523-support branch 2 times, most recently from 565d785 to 07430e8 Compare August 14, 2025 02:57
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant