Action8 MCP Server

MCP server for Claude / Cursor and other AI Agents, providing two-step query capabilities:

• search_actions: Search for site / page / element / scenario metadata
• get_action_by_id: Get complete content by ID (Markdown, optional JSON)

Installation & Running

Using Published Package

npx @action8/mcp --api-url http://localhost:3100

Using Local Source (Monorepo)

# Build
pnpm -C packages/mcp build

# Run
node packages/mcp/dist/cli.js --api-url http://localhost:3100

Configuration

Environment variables and CLI arguments (CLI arguments take precedence over environment variables):

| Env Variable | CLI Argument | Description | Default | |---|---|---|---| | ACTION8_API_URL | --api-url <url> | API service URL | https://api.action8.io | | ACTION8_API_KEY | --api-key <key> | API Key | - | | ACTION8_LOG_LEVEL | --log-level <level> | Log level (debug/info/warn/error) | info | | ACTION8_TIMEOUT | --timeout <ms> | Request timeout (ms) | 30000 | | ACTION8_RETRY_MAX | --retry-max <n> | Max retry attempts | 3 | | ACTION8_RETRY_DELAY | --retry-delay <ms> | Retry delay (ms) | 1000 | | ACTION8_TRANSPORT | --transport <type> | Transport mode (stdio/http) | stdio | | ACTION8_HTTP_PORT | --http-port <port> | HTTP server port (http mode only) | 3001 | | ACTION8_HTTP_HOST | --http-host <host> | HTTP server host (http mode only) | 0.0.0.0 | | ACTION8_HTTP_CORS | --http-cors <origins> | CORS origins (comma-separated, http mode only) | * |

Example Usage

Using environment variables:

export ACTION8_API_URL=http://localhost:3100
export ACTION8_API_KEY=your-key
export ACTION8_LOG_LEVEL=debug
npx @action8/mcp

Using CLI arguments:

npx @action8/mcp --api-url http://localhost:3100 --api-key your-key --log-level debug

Using HTTP transport:

# Environment variables
export ACTION8_TRANSPORT=http
export ACTION8_HTTP_PORT=3001
npx @action8/mcp

# CLI arguments (overrides environment)
npx @action8/mcp --transport http --http-port 3001 --http-host localhost

Development & Publishing

1. Local Development & Debugging

Claude Desktop Configuration (Recommended) Use absolute path to reference local build artifacts for stability:

{
  "mcpServers": {
    "action8-local": {
      "command": "node",
      "args": [
        "/absolute/path/to/action8/packages/mcp/dist/cli.js",
        "--api-url", "http://localhost:3000"
      ]
    }
  }
}

Tip: Use pnpm -C packages/mcp build --watch to enable watch mode. Changes will auto-compile (Claude restart required).

Using npm link

cd packages/mcp
npm link

# Test command
action8-mcp --help

2. Publish to NPM

cd packages/mcp

# 1. Login
npm login

# 2. Update version
npm version patch   # 0.1.0 → 0.1.1 (bug fix)
npm version minor   # 0.1.0 → 0.2.0 (new feature)
npm version major   # 0.1.0 → 1.0.0 (breaking change)

# 3. Build and publish (prepublishOnly auto-runs build)
npm publish

3. Install Published Version

# Global install (for CLI)
npm install -g @action8/mcp

# Or as project dependency
npm install @action8/mcp

# Or run directly with npx (no install needed)
npx @action8/mcp --api-url http://localhost:3100

If previously used npm link, clean up before installing:

npm rm -g @action8/mcp
npm cache clean --force
npm install -g @action8/mcp

4. Monorepo Internal Integration Testing

No publishing needed. Reference directly in other workspaces (e.g., services/action-builder):

1. Add dependency to package.json: "@action8/mcp": "workspace:*"
2. Write test scripts:

import { Action8McpServer } from '@action8/mcp';
// ...use class for integration testing

MCP Client Configuration

Claude Desktop

{
  "mcpServers": {
    "action8": {
      "command": "npx",
      "args": ["-y", "@action8/mcp", "--api-url", "http://localhost:3100"],
      "env": {
        "ACTION8_API_KEY": "your-key"
      }
    }
  }
}

Cursor

{
  "mcpServers": {
    "action8": {
      "command": "npx",
      "args": ["-y", "@action8/mcp", "--api-url", "http://localhost:3100"]
    }
  }
}

Test Coverage

• Core libs: config/protocol/errors/logger/formatter/schema/types/api-client
• Tools: search_actions / get_action_by_id
• Server: tool registration and invocation
• Integration: local HTTP stub to verify tool calls with actual API client