Mcacp vs Claude Codex Bridge
A side-by-side look at the Mcacp 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.
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 Mcacp 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?
Choose Mcacp when
- You need dedicated capabilities in the Coding Agents domain.
- You prefer a local stdio subprocess transport.
- You want tools like
list_installed_agents, registry_search, agent_install.
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 | 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 | Not declared | BYOK (pay the provider) |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 11 | 10 |
| Directory activity | 0 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 23 | 8 |
| Full listing | View Mcacp | View Claude Codex Bridge |
Tools & capabilities
Mcacp tools 23
list_installed_agentsList locally installed agentsregistry_searchSearch the ACP agent registryagent_installInstall an agent from the registryagent_uninstallRemove an installed agentagent_check_upgradesCheck for available upgradesdiscover_agentsScan editor configs (Zed, JetBrains) for agentsreload_configReload `mcacp.json` from diskinitializeSpawn an agent process and perform the ACP handshakeshutdownGracefully shut down an agentnew_sessionCreate a session with working directory and permission policyload_sessionResume a persisted sessionlist_sessionsList stored sessions for an agent- +11 more on the listing page
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.
Mcacp
{
"mcpServers": {
"mcacp": {
"command": "npx",
"args": [
"-y",
"mcacp"
]
}
}
}
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
Mcacp 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 Mcacp 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.
Mcacp has no declared pricing — check the project's own site. 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 mcacp 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, Mcacp has a quality signal of 52/100 (Good) with 0 views, 0 installs and 11 GitHub stars. Claude Codex Bridge has 49/100 (Fair) with 0 views, 0 installs and 10 GitHub stars.