Codex Subagent vs Claude Codex Bridge
A side-by-side look at the Codex Subagent and Claude Codex Bridge MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
C
Codex SubagentCoding Agents · Local subprocess (stdio)Delegate coding tasks to the OpenAI Codex CLI, installed separately, with explicit model and effort.52GoodAuth: not declared
Claude Codex BridgeCoding AgentsRun Codex agents from Claude Code through MCP and Channels, with live progress notifications, mid-task steering and session continuation.49FairAuth: not declaredVerdict: choose Codex Subagent for coding agents work as a local process; choose Claude Codex Bridge for coding agents. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
CChoose Codex Subagent when
- You need dedicated capabilities in the Coding Agents domain.
- You prefer a local stdio subprocess transport.
- You want tools like
codex_doctor, list_codex_models, codex_recommend.
Choose Claude Codex Bridge when
- You need dedicated capabilities in the Coding Agents domain.
- You want tools like
codex_models, codex_start, codex_message.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | C Codex Subagent | Claude Codex Bridge |
|---|---|---|
| Category | Coding Agents | Coding Agents |
| Quality signal | 52/100 · Good | 49/100 · Fair |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | Not declared | Not declared |
| Pricing | BYOK (pay the provider) | BYOK (pay the provider) |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 10 |
| Directory activity | 0 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 8 | 8 |
| Full listing | View Codex Subagent | View Claude Codex Bridge |
Tools & capabilities
Codex Subagent tools 8
codex_doctorCheck the Codex CLI installation and report how to fix it; opt in with `extended: true` for a slow, networked `config.load` report.list_codex_modelsList available models and their reasoning-effort levels.codex_recommendSuggest a model and effort for a described task.codex_delegateRun a task, blocking or in the background, optionally returning JSON that matches a schema.codex_follow_upContinue a previous delegation using its `thread_id`, with or without a schema.codex_job_statusCheck a background delegation.codex_job_resultRead a finished background delegation's output.codex_job_cancelStop a running background delegation.
Claude Codex Bridge tools 8
codex_modelsList the models available to Codex.codex_startStart an independent task in an absolute project directory.codex_messageSend an instruction during a turn, or start the next turn.codex_stopInterrupt the current turn.codex_resumeReopen a saved Codex thread.codex_answerAnswer a structured question from Codex.codex_statusRead status, pending questions, and the latest answer.codex_eventsRead recent events using a sequence cursor.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Codex Subagent
{
"mcpServers": {
"codex-subagent": {
"command": "npx",
"args": [
"-y",
"codex-subagent-mcp"
]
}
}
}
Claude Codex Bridge
No confirmed install command for Claude Codex Bridge yet — follow the setup steps linked from its listing page rather than a guessed package name.
Frequently asked questions
Codex Subagent is categorized under Coding Agents and uses a local stdio subprocess. Claude Codex Bridge belongs to Coding Agents and uses an install path we have not confirmed yet. Pick Codex Subagent for coding agents work and Claude Codex Bridge for coding agents.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Claude Codex Bridge has no confirmed install command yet — follow its own setup instructions.
Codex Subagent is bring-your-own-key: usage is billed by the API provider you supply a key for. Claude Codex Bridge is bring-your-own-key: usage is billed by the API provider you supply a key for. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add codex-subagent and umum-ai-claude-codex-bridge as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Codex Subagent has a quality signal of 52/100 (Good) with 0 views, 0 installs and 0 GitHub stars. Claude Codex Bridge has 49/100 (Fair) with 0 views, 0 installs and 10 GitHub stars.