Morph MCP

Supercharge your coding agent. One MCP with two specialized tools for faster edits and smarter retrieval.

Tools

| Tool | What it does | |------|-------------| | edit_file | Apply code changes at 10,500+ tokens/sec with 98% accuracy | | codebase_search | Natural-language code exploration sub-agent backed by WarpGrep under the hood | | github_codebase_search | Search any public GitHub repo by URL or owner/repo shorthand |

All three tools are always exposed. Clients can manage tool visibility on their side.

Quick Start

Claude Code

claude mcp add morph-mcp -e MORPH_API_KEY=sk-xxx -- npx -y @morphllm/morphmcp

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "morph-mcp": {
      "command": "npx",
      "args": ["-y", "@morphllm/morphmcp"],
      "env": {
        "MORPH_API_KEY": "sk-xxx"
      }
    }
  }
}

VS Code

Add to .vscode/mcp.json:

{
  "mcp": {
    "servers": {
      "morph-mcp": {
        "command": "npx",
        "args": ["-y", "@morphllm/morphmcp"],
        "env": {
          "MORPH_API_KEY": "sk-xxx"
        }
      }
    }
  }
}

How the Tools Work

edit_file

Applies code edits using Morph's Fast Apply model. The agent sends partial code with // ... existing code ... placeholders, and Fast Apply merges it into the full file.

Input:
  path: "src/api.ts"
  code_edit: |
    export async function fetchData(endpoint: string) {
      // ... existing code ...
      const response = await fetch(endpoint, { 
        headers,
        timeout: 5000  // added timeout
      });
      // ... existing code ...
    }
  instruction: "Add 5 second timeout to fetch call"

Output: Git-style unified diff showing exactly what changed

codebase_search

codebase_search is the MCP-facing wrapper around WarpGrep. Ask a natural-language question about what you want to understand and it will use WarpGrep under the hood to locate relevant files and line ranges. It does not accept regex or symbol-only queries.

Good: Where does auth get handled, what are the different oauth methods supported? Bad: auth()

Input:
  search_string: "Where does auth get handled, what are the different oauth methods supported?"
  repo_path: "/Users/me/project"
  search_type: "default"  # optional: "default" or "node_modules"

Output: List of files with specific line ranges + actual code content

Configuration

| Variable | Description | Default | |----------|-------------|---------| | MORPH_API_KEY | Your API key from morphllm.com | Required | | MORPH_API_URL | Override Morph API base URL for custom proxies | https://api.morphllm.com | | MORPH_WARP_GREP_TIMEOUT | Timeout for warp grep model calls in ms | 30000 |

Get an API Key

1. Sign up at morphllm.com
2. Go to dashboard → API Keys
3. Keys start with sk- or morph-

Links

• Documentation
• MCP Quickstart

License

MIT