Codex MCP “missing issuer” is a Codex 0.143–0.146 bug, not OpenSEO (#491)

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Ben Senescu 2026-08-17 15:21:32 -04:00 committed by GitHub
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@ -142,6 +142,8 @@ Start with one focused workflow instead of asking your agent to "do SEO" broadly
If your client cannot connect, check that the server URL is exactly `https://app.openseo.so/mcp`. If your client cannot connect, check that the server URL is exactly `https://app.openseo.so/mcp`.
If Codex reports `Authorization server response missing required issuer: expected https://app.openseo.so`, upgrade Codex CLI or the Codex desktop app to 0.147.0 or later. Codex 0.143 through 0.146 drop the issuer from the OAuth callback. You can also [connect with an API key](#connect-with-an-api-key) instead of OAuth.
If authorization fails, disconnect the OpenSEO server in your client, add it again, and repeat the login flow. If authorization fails, disconnect the OpenSEO server in your client, add it again, and repeat the login flow.
If your agent cannot find a project, ask it to list OpenSEO projects first and use the returned project ID in later tool calls. If your agent cannot find a project, ask it to list OpenSEO projects first and use the returned project ID in later tool calls.