Aztec MCP Server

An MCP (Model Context Protocol) server that provides local access to Aztec documentation, examples, and source code through cloned repositories.

Features

• Version Support: Clone specific Aztec release tags (e.g., v4.0.0-devnet.2-patch.1)
• Local Repository Cloning: Automatically clones Aztec repositories with sparse checkout for efficiency
• Fast Code Search: Search Noir contracts and TypeScript files using ripgrep (with fallback)
• Documentation Search: Search Aztec documentation by section
• Example Discovery: List and read Aztec contract examples

Installation

With npx (recommended)

npx @aztec/mcp-server

Global install

npm install -g @aztec/mcp-server
aztec-mcp

Configuration

Claude Code Plugin

Add to your .mcp.json:

{
  "mcpServers": {
    "aztec-mcp": {
      "command": "npx",
      "args": ["--prefer-online", "-y", "@aztec/mcp-server@latest"]
    }
  }
}

Available Tools

aztec_sync_repos

Clone or update Aztec repositories locally. Run this first to enable other tools.

Clones:
- aztec-packages (docs, aztec-nr, noir-contracts) - sparse checkout
- aztec-examples (full)
- aztec-starter (full)

Parameters:

• version (string): Aztec version tag to clone (e.g., v4.0.0-devnet.2-patch.1). Defaults to latest supported version.
• force (boolean): Force re-clone even if repos exist
• repos (string[]): Specific repos to sync

Example - Clone specific version:

aztec_sync_repos({ version: "v4.0.0-devnet.2-patch.1" })

aztec_status

Check the status of cloned repositories.

aztec_search_code

Search Aztec contract code and source files. Supports regex patterns.

Parameters:

• query (string, required): Search query (supports regex)
• filePattern (string): File glob pattern (default: *.nr)
• repo (string): Specific repo to search
• maxResults (number): Maximum results (default: 30)

Example:

aztec_search_code({ query: "PrivateSet", filePattern: "*.nr" })

aztec_search_docs

Search Aztec documentation.

Parameters:

• query (string, required): Documentation search query
• section (string): Docs section (tutorials, concepts, developers, reference)
• maxResults (number): Maximum results (default: 20)

aztec_list_examples

List available Aztec contract examples.

Parameters:

• category (string): Filter by category (token, nft, defi, escrow, crowdfund)

aztec_read_example

Read the source code of an Aztec contract example.

Parameters:

• name (string, required): Example contract name

aztec_read_file

Read any file from cloned repositories.

Parameters:

• path (string, required): File path relative to repos directory

Configuration Options

Storage Location

Repositories are cloned to ~/.aztec-mcp/repos/ by default.

Override with the AZTEC_MCP_REPOS_DIR environment variable:

{
  "mcpServers": {
    "aztec-mcp": {
      "command": "npx",
      "args": ["--prefer-online", "-y", "@aztec/mcp-server"],
      "env": {
        "AZTEC_MCP_REPOS_DIR": "/custom/path"
      }
    }
  }
}

Default Aztec Version

Set the default Aztec version with the AZTEC_DEFAULT_VERSION environment variable:

{
  "mcpServers": {
    "aztec-mcp": {
      "command": "npx",
      "args": ["--prefer-online", "-y", "@aztec/mcp-server"],
      "env": {
        "AZTEC_DEFAULT_VERSION": "v3.0.0-devnet.6-plugin.1"
      }
    }
  }
}

Development

# Clone the repo
git clone https://github.com/aztecprotocol/mcp-server
cd mcp-server

# Install dependencies
npm install

# Build
npm run build

# Run locally
node dist/index.js

Requirements

• Node.js 18+
• Git
• ripgrep (optional, for faster searching)

Cloned Repositories

Repository	Description	Checkout
aztec-packages	Main monorepo	Sparse: docs, aztec-nr, noir-contracts
aztec-examples	Official examples	Full
aztec-starter	Starter template	Full

License

MIT