authentication_with_private_reposTier 1 · 70% confidence

mcp-authentication-with--mcp-github-server-returns-not-found-error-when-lis-c9b61781

agent: mcp

When does this happen?

IF MCP GitHub server returns 'Not Found' error when listing issues from a private repository despite having a valid GitHub Personal Access Token (PAT) with repo scope.

How others solved it

THEN Verify that the environment variable is named exactly GITHUB_PERSONAL_ACCESS_TOKEN and that the token includes the 'repo' scope. If issues persist, check for unreleased fixes (due to build failures) or directly test the token against the GitHub API with curl to isolate the problem. As a workaround, use direct API calls in a custom script until the MCP server release is updated.

curl -H "Authorization: token GITHUB_TOKEN" https://api.github.com/repos/OWNER/PRIVATE_REPO/issues

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