Rank, 14 days: 144 on the Codex sheet
2 people reported

All time, since Oct 29.

Promo MCP startup HTTP 403

“Failure occurs during MCP initialization, before any model request or credit/organization tool invocation.”

Is this your bug? What gets counted gets fixed. Pile on.

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I hit this bug: rapsheet.dev/sheets/codex/issues/23092/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

openai-api-credit-promo MCP server fails to start with HTTP 403 challenge page. Endpoint returns an HTML Cloudflare Managed Challenge page instead of an MCP response, so handshaking fails during MCP initialization in new threads.

Is this your bug?

File my report
Where
MCP servers
Error text
MCP client for `openai-api-credit-promo` failed to start: MCP startup failed: handshaking with MCP server failed:
Versions
0.165.0 to 0.166.0
Platforms
Windows
How bad
Breaks a normal workflow.

Not quite your bug?

  1. codex_apps MCP decoding failure18 people
  2. MCP tools missing in tasks13 people

Original reports2, newest first

  1. [MCP] openai-api-credit-promo receives Cloudflare Managed Challenge on Windows (CLI 0.166.0, plugin 1.3.13)On GitHub#58797
  2. openai-developers 1.3.13: openai-api-credit-promo MCP fails with HTTP 403 in every thread; why start promo MCP servers eagerly per thread?On GitHub#58197

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