Docs: Add description how to install remote MCP Server in Codex-CLI

[laenan8466]

Problem

Docs/README.md does not contain description how to configure the config.toml for OpenAI s Codex-CLI for use with this MCP.

Proposed solution

Add description/link to README.md so Codex-CLI users can use this MCP from Codex CLI.

Additional context

Assume, the server is running locally already (e.g. VS Code or Docker) or Stream is used. To my knowledge Codex-CLI does not integrate a MCP-server-runner.
Codex seems to support streamable MCP servers as experimental feature.

[nastynaz]

Any update on this? @laenan8466 did you get it working?

[adam-aggrow]

This works for the CLI (in your config.toml - I'm on version 0.46.0):

experimental_use_rmcp_client = true
[mcp_servers.whatever-name-you-want-to-give-it]
url = "https://api.githubcopilot.com/mcp"
bearer_token_env_var = "YOUR_ENVIRONMENT_VARIABLE_NAME"

Problem is I can't get it to work in the Codex panel in VS Code. It's like it doesn't recognize any of my environment variables and I can't figure out how to get it to, so if you have any idea why/how, please let me know.

[jaycoolslm]

Im getting this 404 when i try to authenticate with oauth via codex mcp login github

[laenan8466]

Every time I call codex mcp login github the of @jaycoolslm mentioned 404 page opens, even that a PAT is present in the in .codex/config.toml named env var. I more and more come to the conclusion, this could be an issue with codex-cli and not a github-mcp-server thing.

Albeit when I have in VSC the github mcp server running, codex can access on it. (maybe that's why it worked for @adam-aggrow )

So I fail to pinpoint this and and it seems to be flaky. I would close this issue for now, as I cannot see how the maintainers can update the docs, when we cannot find a solution to make this reliably work.
@almaleksia feel free to reopen, when you see potential to work on this.

[devtanna]

Any updates here? I am struggling to connect codex with Github HTTP streamable mcp. the login link always go to 404