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relay

v0.3.1-staging.3

Relay Messenger channel for Claude Code with durable acknowledged delivery, explicit Read receipts, and retry-safe replies.

Claude Code1 MCP serverstdio

By Relay MessengerLicense: MIT0 GitHub starsUpdated 2 weeks ago

Directory evidence

Runtimes
Claude Code
Parsed components
1 skill or MCP entry
Source updated
Sep 8, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install relay for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install relay-4@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/RelayMessenger/Relay-SDK

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is packages/claude-code/.

Plugin files

packages/claude-code/
├── .claude-plugin/plugin.json
└── .mcp.json

MCP servers1

relaystdio
command
node
args
${CLAUDE_PLUGIN_ROOT}/runtime/server.mjs
env.RELAY_AGENT_TOKEN
${user_config.agent_token}
env.RELAY_ALLOWED_SENDERS
${user_config.allowed_senders}
env.RELAY_BASE_URL
${user_config.base_url}

MCP configuration uses runtime-provided plugin path placeholders such as ${PLUGIN_ROOT} or ${CLAUDE_PLUGIN_ROOT}. Review the manifest for the runtime-specific expansion rules.

Plugin manifests1

packages/claude-code/.claude-plugin/plugin.json
{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "relay",
  "displayName": "Relay Messenger",
  "description": "Relay Messenger channel for Claude Code with durable acknowledged delivery, explicit Read receipts, and retry-safe replies.",
  "version": "0.3.1-staging.3",
  "author": {
    "name": "Relay Messenger",
    "url": "https://relayapp.im"
  },
  "homepage": "https://github.com/RelayMessenger/Relay-SDK/tree/main/packages/claude-code#readme",
  "repository": "https://github.com/RelayMessenger/Relay-SDK",
  "license": "MIT",
  "keywords": [
    "relay",
    "messaging",
    "channel",
    "mcp",
    "claude-code"
  ],
  "defaultEnabled": false,
  "mcpServers": "./.mcp.json",
  "channels": [
    {
      "server": "relay"
    }
  ],
  "userConfig": {
    "agent_token": {
      "type": "string",
      "title": "Relay Agent Token",
      "description": "Agent Token used only by the local Relay channel process.",
      "sensitive": true,
      "required": true
    },
    "allowed_senders": {
      "type": "string",
      "title": "Allowed Relay senders",
      "description": "Comma-separated Relay Contact UUIDs or exact Handles allowed to inject messages.",
      "required": true
    },
    "base_url": {
      "type": "string",
      "title": "Relay API origin",
      "description": "HTTPS Relay API origin. Change only for a trusted non-production Relay environment.",
      "required": true,
      "default": "https://api.relayapp.im"
    }
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[relay on Agent Plugins Marketplace](https://pluginsmp.com/plugins/relay-4)