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Offline Protocol

Official registry Developer tools

Find Offline Protocol SDK packages, read integration guides, plan and scaffold local apps.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @offline-protocol/cli
Claude Code 
claude mcp add offline-protocol -- npx -y @offline-protocol/cli@0.2.8 mcp serve
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "offline-protocol": {
            "command": "npx",
            "args": [
                "-y",
                "@offline-protocol/cli@0.2.8",
                "mcp",
                "serve"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Offline Protocol agent plugins
  2. Requirements
  3. Install
  4. What is in here
  5. License, privacy and security

Offline Protocol agent plugins

Plugins, skills and MCP configuration that connect coding agents (Claude Code, Codex, Cursor, Gemini CLI, VS Code, Cline, Devin and other MCP clients) to the Offline Protocol developer tools. Your agent can find Offline Protocol SDK packages, read integration guides and workflows, plan an implementation, and scaffold or integrate a project on your machine.

Every configuration runs the local MCP server from the published Offline Protocol CLI, npx -y @offline-protocol/cli@0.2.8 mcp serve, or connects to the hosted MCP server at https://mcp.offlineprotocol.com/mcp. The tools help you build an application. They do not discover nearby devices, operate a mesh or control live hardware.

This repository is generated from the Offline Protocol CLI source by its export-agent-plugins.mjs script. SOURCE.json records the source commit and a sha256 for every file. Changes are made in the source and exported here; pull requests to this repository are reviewed and applied upstream.

Requirements

Node.js 18 or later with npx. The first run downloads the pinned CLI (@offline-protocol/cli@0.2.8) from npm. Local tools need no Offline Protocol account and send no telemetry. The hosted server needs an application API key and its application ID from https://dev.offlineprotocol.com.

Install

Claude Code plugin
claude plugin marketplace add https://github.com/Offline-Protocol/offline-protocol-agent-plugins.git
claude plugin install offline-protocol@offline-protocol
Codex
codex plugin marketplace add https://github.com/Offline-Protocol/offline-protocol-agent-plugins.git
codex plugin add offline-protocol@offline-protocol

Or add only the MCP server:

codex mcp add offline-protocol -- npx -y @offline-protocol/cli@0.2.8 mcp serve
Cursor

Copy plugins/offline-protocol into ~/.cursor/plugins/local/offline-protocol and reload Cursor. For the MCP server alone, put the contents of distribution/clients/mcp-stdio.json in .cursor/mcp.json or ~/.cursor/mcp.json, or use the install link in distribution/clients/README.md.

Gemini CLI extension

The repository root is a Gemini CLI extension (gemini-extension.json).

gemini extensions install https://github.com/Offline-Protocol/offline-protocol-agent-plugins
VS Code with GitHub Copilot
code --add-mcp '{"name":"offline-protocol","type":"stdio","command":"npx","args":["-y","@offline-protocol/cli@0.2.8","mcp","serve"]}'

For one workspace, copy distribution/clients/vscode.json to .vscode/mcp.json.

Cline
cline mcp install offline-protocol -- npx -y @offline-protocol/cli@0.2.8 mcp serve
Devin

Devin CLI:

devin plugins install Offline-Protocol/offline-protocol-agent-plugins#plugins/offline-protocol

Devin (web): add a custom MCP server with transport stdio, command npx and arguments -y @offline-protocol/cli@0.2.8 mcp serve. Devin Desktop: distribution/clients/devin-desktop.json.

Any other MCP client

Use this server definition (also in distribution/clients/mcp-stdio.json):

{
  "mcpServers": {
    "offline-protocol": {
      "command": "npx",
      "args": ["-y", "@offline-protocol/cli@0.2.8", "mcp", "serve"]
    }
  }
}

Zed, Continue, xAI and hosted configurations are in distribution/clients/README.md and distribution/clients/priority-two.md.

What is in here

PathContents
plugins/offline-protocol/The plugin: manifests for Claude Code, Codex and Cursor, MCP configuration, the integration skill and the logo
.claude-plugin/, .cursor-plugin/, .agents/plugins/Marketplace files that point at the plugin
gemini-extension.jsonGemini CLI extension manifest
distribution/clients/Ready-to-merge MCP configuration for other clients
distribution/cline/offline-protocol/Cline marketplace entry
distribution/mcp-registry/Official MCP Registry records
.github/workflows/validate.ymlChecks that run on every push and pull request: file hashes against SOURCE.json, manifest consistency, registry schema validation and a secret scan

Releases are tagged v<version>, where the version is the one in gemini-extension.json and the plugin manifests. The plugin version is separate from the CLI version it launches.

License, privacy and security

The plugin files are licensed under the Apache License 2.0 (LICENSE). The Offline Protocol CLI they launch is also Apache-2.0; SDKs it installs into your projects keep their own licenses, reported by the resolve_packages tool. The Offline Protocol name and logo are trademarks (NOTICE). Using hosted Offline Protocol services is governed by the developer terms at https://www.offlineprotocol.com/legal/developer-terms and the privacy policy at https://www.offlineprotocol.com/privacy. Your agent client and model provider handle tool inputs and results under their own terms.

Report security issues to security@offlineprotocol.com, not in public issues (SECURITY.md).

Frequently asked questions

What is Offline Protocol?

Find Offline Protocol SDK packages, read integration guides, plan and scaffold local apps.

How do I install Offline Protocol?

It runs on your machine. In Claude Code: claude mcp add offline-protocol -- npx -y @offline-protocol/cli@0.2.8 mcp serve. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Offline Protocol need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Offline Protocol open source?

Yes. Its code is on GitHub under the Apache-2.0 license.

Who maintains Offline Protocol?

It is published by Offline-Protocol. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.