Change8

Change8 MCP

Breaking Change Alerts for AI Agents

Know what broke before your code does.

❌ Without Change8

You upgrade a dependency and your code breaks. LLMs don't know:

• ❌ That `pydantic` v2 removed the `.dict()` method
• ❌ That `langchain` moved `ChatOpenAI` to a new package
• ❌ What migration steps you need to take

You waste hours debugging and searching through changelogs.

✅ With Change8

Change8 MCP gives AI agents instant access to structured breaking change data for hundreds of popular packages.

Example prompt:

I'm upgrading langchain from 0.1 to 0.2. What breaking changes should I know about?

Change8 responds with:

• Breaking changes with exact details
• Migration steps to fix your code
• Affected symbols (functions, classes, modules)

No more searching through changelogs. No more surprise production failures.

Installation

Cursor

Add to your `~/.cursor/mcp.json`:

{
  "mcpServers": {
    "change8": {
      "command": "npx",
      "args": ["-y", "@change8/mcp"]
    }
  }
}

Claude Desktop

Add to your `claude_desktop_config.json`:

{
  "mcpServers": {
    "change8": {
      "command": "npx",
      "args": ["-y", "@change8/mcp"]
    }
  }
}

Claude Code

claude mcp add change8 -- npx -y @change8/mcp

Available Tools

Example Usage

Get breaking changes:

What are the breaking changes in the latest Pydantic releases?

Compare versions:

What changed between React 17 and React 18?

Search by symbol:

Which releases affected the ChatOpenAI class?

Tracked Packages

Change8 tracks hundreds of packages including:

Request a Package

Don't see your package? Open an issue to request it.

We add new packages within 24 hours.

How It Works

1. Daily Scraping: We pull release notes from GitHub for popular packages

2. AI Extraction: We use LLMs to extract structured data (breaking changes, migrations, affected symbols)

3. Instant Access: MCP gives AI agents direct access to this intelligence

License

MIT