Workaround
Add the issuer path after the well-known path at the site root, e.g. https://github.com/.well-known/oauth-authorization-server/login/oauth.
The issue
OAuth flow doesn't just work with my agent (moo) for lack of OASM
— the original title of github/github-mcp-server issue #2901, quoted as written. The issue has no error text of its own.
What fixed it
You need to add the suffix after the well known which is at the root of the site:
https://github.com/.well-known/oauth-authorization-server/login/oauth
— a maintainer's comment on the issue.
Source and dates
| Repository | github/github-mcp-server |
|---|---|
| Issue | OAuth flow doesn't just work with my agent (moo) for lack of OASM |
| Evidence | a maintainer's comment |
| Status | Workaround (a way around it, given in the evidence) |
| Fixed in | No version is named |
| Issue closed | 2026-07-17 |
| Read from GitHub | 2026-11-07 |
| Approved by a person | 2026-11-07 |
This page records what the vendor's own GitHub repository says. The error text, the issue title and the quote are copied as written; the summary at the top is one sentence limited to the quote, and a person approved this fact on 2026-11-07. KanseiLink has not re-run the fix. Read the issue before applying it. Something changed? Write to contact@synapse-arrows.com.
For AI agents
The same fact is returned as issue_facts by lookup({ service_id: 'github' }) on the KanseiLink MCP server (https://mcp.kansei-link.com/mcp), next to the other checked facts for GitHub. Connection guide: GitHub service page.
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