connector-builder-mcp

Helping robots build Airbyte connectors.

Overview

A Model Context Protocol (MCP) server for Airbyte connector building operations, enabling AI ownership of the complete connector development lifecycle - from manifest validation to automated testing and PR creation.

Key Features

• Manifest Operations: Validate and resolve connector manifests
• Stream Testing: Test connector stream reading capabilities
• Configuration Management: Validate connector configurations
• Test Execution: Run connector tests with proper limits and constraints

Quick Start

Prerequisites:

• uv for package management (brew install uv)
• Python 3.10+ (uv python install 3.10)

If you are developing or testing locally, you will also want to install:

• PoeThePoet as a task manager (uv tool install poethepoet)

See the Contributing Guide or Testing Guide for more information about working with the repo locally.

Install:

The Poe sync and install commands are identical, giving a quick way to update your virtual environment or create one from scratch, if needed.

# These are identical:
uv sync --all-extras
poe install
poe sync

Run:

# You can use any of these to start the server manually:
uv run connector-builder-mcp
poe mcp-serve-local
poe mcp-serve-http
poe mcp-serve-sse

MCP Client Configuration

To use with MCP clients like Claude Desktop, add the following configuration:

Stable Version (Latest PyPI Release)

{
  "mcpServers": {
    "connector-builder-mcp": {
      "command": "uvx",
      "args": ["connector-builder-mcp"]
    }
  }
}

Development Version (Main Branch)

{
  "mcpServers": {
    "connector-builder-mcp": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/airbytehq/connector-builder-mcp.git@main",
        "connector-builder-mcp"
      ]
    }
  }
}

Local Development

{
  "mcpServers": {
    "connector-builder-mcp": {
      "command": "uv",
      "args": [
        "run",
        "--project",
        "/path/to/repos/connector-builder-mcp",
        "connector-builder-mcp"
      ]
    }
  }
}

VS Code MCP Extension

For VS Code users with the MCP extension, use the included configuration in .vscode/mcp.json.

Contributing and Testing Guides

• Contributing Guide - Development setup, workflows, and contribution guidelines
• Testing Guide - Comprehensive testing instructions and best practices

Using Poe Tasks

For convenience, you can use Poe the Poet task runner:

# Install Poe
uv tool install poethepoet

# Then use ergonomic commands
poe install         # Install dependencies
poe check           # Run all checks (lint + typecheck + test)
poe test            # Run tests
poe mcp-serve-local # Serve locally
poe mcp-serve-http  # Serve over HTTP
poe mcp-serve-sse   # Serve over SSE

You can also run poe --help to see a full list of available Poe commands.

If you ever want to see what a Poe task is doing (such as to run it directly or customize how it runs), check out the poe_tasks.toml file at the root of the repo.