# NousResearch/hermes-agent · MCP OAuth DCR client_secret handling fixes

## Open now

- Nothing open on GitHub.

These issues and PRs concern MCP OAuth flows where Dynamic Client Registration (DCR) returns a client_secret that must be included in subsequent token exchange requests. Multiple fixes address propagating and using that secret across OAuth paths, with Supabase cited as a concrete case.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #87491. Verify it addresses your case.
- **Recommended:** read PR #87491 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-87491`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #29680: MCP OAuth fails with Supabase: token exchange requires client_secret

## Prior & competing PRs

- **#87491: fix(mcp): handle DCR clients with secrets across all OAuth paths**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `tests/tools/test_mcp_oauth.py`, `tests/tools/test_mcp_oauth_manager.py`, `tools/mcp_oauth.py`, `tools/mcp_oauth_manager.py`
- **#29682: fix(mcp): handle DCR clients with secrets**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `128fb74d9858db849cb3a8f59ec6a7a85a0bf70c`, `#87491`
- **#34274: fix(mcp): handle Supabase OAuth token quirks**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `128fb74d9858db849cb3a8f59ec6a7a85a0bf70c`, `#87491`, `#29682`

## Fix status

- Merged to main in PR #87491 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-16`.
- Subsystem: `mcp`