Full MCP support
What version of Codex is running?
0.50
What subscription do you have?
Plus
Which model were you using?
gpt-5-codex
What platform is your computer?
MacOS M1
What issue are you seeing?
I’m on the $20 Plus plan and installed the Context7 MCP server, but the Codex CLI only exposes list_mcp_* helpers with no way to invoke the actual MCP tools (resolve-library-id / get-library-docs, etc.). It honestly doesn’t matter to me
if the free tier lacks this, but the paid plan should absolutely have full MCP support. Please expose a call_mcp_tool (or
equivalent) interface so paying users can actually use the MCP servers they install.
What steps can reproduce the bug?
Uploaded thread: 019a3054-ad7f-79d0-b148-795af70d4785
What is the expected behavior?
Full MCP support and renew docs https://developers.openai.com/codex/mcp/
codex mcp add context7 -- npx -y @upstash/context7-mcp - this will now work, because:
codex mcp add context7 -- npx -y @upstash/context7-mcp --api-key YOUR_API_KEY
Additional information
no comments
OpenAI suck.
11 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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No, I disagree. I have paid my hard-earned $20 and I require full MCP support or\and excuses from a human, not from a bot. If you want it merged, do it yourself. I will not close the issue until full MCP support is implemented.
There is no difference in MCP behavior based on your plan.
<img width="760" height="408" alt="Image" src="https://github.com/user-attachments/assets/3fd96de0-4a3b-4af6-b8e6-955ae01ddeaa" />
I try to config MCP through codex addon inside vscode and did not find any link can guide me through it. any sugestion is welcome. PS: I follow the guide to config codex CLI, it works. but inside vscode, it is not... after I set up the config.toml file
The extension uses the same Codex CLI under the hood for most things including mcp so if it works in the CLI, it should be the same in the extension.
I think this is because the instructions on the OpenAI website are written incorrectly.
Have you tried reloading the plugin in the IDE?
But seems like it is not :P
Instead of closing the issue, you would be better off quoting the documentation on setting up MCP and providing a link to how to make contributions to the documentation.
I tried... and not works
They works 24\7 to make products not works.
Now it works. I didn't do anything. Maybe after i configure the mcp. I should just wait for some time. Good work from codex team.
OK, so close this issue!