MCP Domain Availability Server

A Model Context Protocol (MCP) server for checking domain availability and pricing using the GoDaddy OTE (Operational Test Environment) API.

Features

• Check domain availability and pricing via GoDaddy OTE sandbox

• Support for multiple TLD suffixes

• Fast and Full check modes

• Support for bulk domain checking

• Rate limiting (60 calls per minute)

• Normalized pricing in dollars with 2 decimal places

• Consistent field naming and data structures

• Period normalization (stored in months, displayed in years)

Related MCP server: Whodis MCP Server

Installation

Using uv (Recommended)

Manual Installation

Configuration

Environment Variables

• DOMAIN_API_KEY: Your GoDaddy OTE API credentials in format "key:secret" (required)

Note: The server uses GoDaddy OTE (sandbox) API by default: https://api.ote-godaddy.com

GoDaddy OTE Setup

1. Sign up for GoDaddy Developer account

2. Get OTE (sandbox) API credentials

3. Set the environment variable: DOMAIN_API_KEY="your-ote-key:your-ote-secret"

MCP Configuration

Add this to your MCP client configuration (e.g., Claude Desktop's claude_desktop_config.json):

Usage

Development & Testing

This will start the MCP Inspector at http://localhost:6274 for interactive testing.

Tools Available

The server provides one tool: check_domain_availability

Parameters

Option 1: Direct domain list

• domains: Array of domain names to check (e.g., ["example.com", "example.org"])

Option 2: Base name with TLD suffixes

• base_name: Base domain name (e.g., "example")

• tld_suffixes: Array of TLD suffixes (e.g., [".com", ".org", ".net", ".io"])

Optional

• checkType: "FAST" or "FULL" (default: "FAST")

  • FAST: Optimized for speed

  • FULL: Optimized for accuracy

Examples

Check specific domains

Check base name with multiple TLDs

Response Format

Text Response:

JSON Response (normalized fields):

Data Normalization

Price Normalization

• Input: GoDaddy API returns prices in micro-units (1/1,000,000 of currency)

• Output: Converted to dollars with 2 decimal places

• Example: 12000000 micro-units → $12.00 USD

Period Normalization

• Storage: Period stored in months for consistency

• Display: Converted to years for user-friendly display

• Example: 12 months → "1 year", 24 months → "2 years"

Field Naming

Consistent, explicit field names:

• domain_name (instead of domain)

• is_available (instead of available)

• price_dollars (instead of price)

• currency_code (instead of currency)

• is_definitive (instead of definitive)

• registration_period_months (instead of period)

• error_message (instead of error)

API Integration

This server integrates with GoDaddy OTE API:

• Base URL: https://api.ote-godaddy.com

• Endpoint: GET /v1/domains/available?domain={domain}

• Headers: Authorization: sso-key {key}:{secret}

• Rate Limit: 60 requests per minute

Authentication Format

Error Handling

The server handles various error conditions:

• Missing API key

• Invalid domains

• API rate limits (429) - with retry guidance

• Partial responses (203)

• Authentication errors (401, 403)

• Server errors (500)

• Network timeouts

Development

Setup Development Environment

Testing with MCP Inspector

1. Set your OTE credentials: DOMAIN_API_KEY="your-key:your-secret"

2. Run: mcp dev domain_availability/server.py

3. Open browser at http://localhost:6274

4. Use the session token displayed in terminal if prompted

5. Test the check_domain_availability tool

License

MIT License

Support

For issues and questions, please create an issue in the repository.