Mcacp

Name: Mcacp
Author: Oortonaut

by Oortonautversion 0.1.3i★ –iRuns on your computer

Registry nameio.github.Oortonaut/mcacp

Install

Overview

Description from the maker (original English)

MCP-to-ACP bridge — let any MCP client drive ACP coding agents

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "mcacp": {
      "command": "npx",
      "args": [
        "-y",
        "mcacp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add mcacp -- npx -y mcacp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "mcacp": {
      "command": "npx",
      "args": [
        "-y",
        "mcacp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mcacp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcacp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Oortonaut, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32691 servers in this category
Published to the registry more recently than 2% of the other 32691 servers in this category
Basic checks equal to or better than 100% of the other 32691 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mcacp safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.3) reached the registry 9 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Dialyne

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated 2 days ago

Install

Dialyne

by dialyne

Real phone calls in France for AI agents: dial +33 numbers, menus, hold, AI disclosure.

Runs in the cloudUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

MCACP

Bridge any MCP client to any ACP coding agent.

MCACP is an MCP server that speaks the Agent Client Protocol on behalf of your MCP host. It lets Claude Code, Zed, VS Code, or any MCP-compatible client spawn, manage, and interact with ACP coding agents — turning a single chat window into a multi-agent control plane.

MCP Client (Claude Code, Zed, VS Code, ...)

| | MCP (stdio) v MCACP | | ACP (stdio, per agent) v Claude Code · Gemini CLI · Codex · Auggie · Copilot · ...

What can you do with this?

Run any ACP agent from any MCP client. You don't need a dedicated IDE plugin for each agent. Install Gemini from Claude Code. Run Codex from Zed. Mix and match.

Compare agents side by side. Give the same task to Claude Code ACP and Gemini CLI in parallel sessions and compare the results.

Build agent-driven pipelines. One agent writes code, another reviews it, a third runs the tests. MCACP handles the lifecycle and permission flow for all of them.

Control permissions interactively. On hosts that support MCP elicitation (Zed), permission requests pop up as interactive forms. On hosts that don't (Claude Code), they fall back to operator mode where the host agent decides.

Resume where you left off. Sessions persist to disk. Shut down, restart, load_session — the agent picks up where it stopped.

Discover and install agents from chat. Browse the ACP registry, install agents, check for upgrades — without leaving your conversation.

Quick start

Install

npm install -g mcacp

Or run directly:

npx mcacp

Add to your MCP client

Claude Code (~/.claude/settings.json):

"mcpServers": { "mcacp": { "command": "npx", "args": ["-y", "mcacp"] } } }

Zed (settings.json):

"context_servers": { "mcacp": { "command": { "path": "npx", "args": ["-y", "mcacp"] } } } }

Then from chat:

"Search for available agents"        →  registry_search

"Install the Gemini agent" → agent_install "Initialize it and start a session" → initialize + new_session "Ask it to refactor auth" → prompt_start + prompt

MCP tools

MCACP exposes 22 tools organized into five groups.

Registry

Tool	Description
`list_installed_agents`	List locally installed agents
`registry_search`	Search the ACP agent registry
`agent_install`	Install an agent from the registry
`agent_uninstall`	Remove an installed agent
`agent_check_upgrades`	Check for available upgrades
`discover_agents`	Scan editor configs (Zed, JetBrains) for agents
`reload_config`	Reload `mcacp.json` from disk

Lifecycle

Tool	Description
`initialize`	Spawn an agent process and perform the ACP handshake
`shutdown`	Gracefully shut down an agent

Sessions

Tool	Description
`new_session`	Create a session with working directory and permission policy
`load_session`	Resume a persisted session
`list_sessions`	List stored sessions for an agent
`close_session`	Close a session (preserved for later resume)

Interaction

Tool	Description
`prompt_start`	Send a prompt (returns immediately)
`prompt`	Block until events are available
`prompt_events`	Non-blocking poll for events
`grant_permission`	Resolve a pending permission request (operator mode)
`request_permission`	Send an MCP elicitation to the host for a permission decision
`cancel`	Cancel an in-progress prompt
`set_mode`	Switch agent operating mode

Status

Tool	Description
`list_running_agents`	List all agents with status and sessions
`get_agent_status`	Detailed status of a running agent
`set_agent_status`	Set status text for an agent

Permission policies

Each session can use a different policy:

Policy	Behavior
`allow_all`	Auto-approve all agent actions
`deny_all`	Block all tool use
`elicit`	Forward as MCP elicitations to the host; falls back to `operator` if unsupported
`operator`	Queue as events — the host agent decides via `grant_permission`

Operator flow

Orchestrator                   MCACP                      ACP Agent


	-- session/prompt --------->
	<- request_permission ------
<- {pendingPermission: ...}

-- grant_permission ------->
{toolCallId, optionId}	-- permission outcome ----->
	<- prompt result -----------
<- {stopReason, updates}

Configuration

MCACP looks for mcacp.json in these locations (first found wins):

--config flag or MCACP_CONFIG env var
.mcacp/mcacp.json in the current directory
~/.config/mcacp/mcacp.json

"registries": ["https://cdn.agentclientprotocol.com/registry/v1/latest/registry.json"], "defaultPermissionPolicy": "elicit", "agent_servers": { "my-custom-agent": { "command": "node", "args": ["my-agent.js"] } } }

See docs/configuration.md for the full schema.

Building from source

git clone https://github.com/Oortonaut/mcacp.git

cd mcacp npm install npm run build node dist/index.js

License

Apache-2.0

Mcacp

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Dialyne

README from the maker

MCACP

What can you do with this?

Quick start

Install

Add to your MCP client

MCP tools

Registry

Lifecycle

Sessions

Interaction

Status

Permission policies

Operator flow

Configuration

Building from source

License