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3viky

MCP Domain Checker Price

by 3viky
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TypeScript
Remote

MCP Domain Checker Price

Model Context Protocol server for domain pricing and affiliate purchase links from Joker.com

This MCP server provides domain registration pricing via the official Joker.com DMAPI and generates affiliate purchase links with automatic browser integration.

License: MIT Version

Features

  • āš” Two-Tier Pricing System - Static JSON (default, zero-config) + optional real-time API

  • šŸš€ Zero Configuration - Works immediately with bundled pricing data

  • šŸ’° Comprehensive Pricing - Registration, renewal, and transfer prices

  • šŸ’¾ Smart Caching - 6-hour TTL cache reduces API load

  • šŸ”— Affiliate Links - Optional affiliate tracking for purchase links

  • šŸŒ Browser Integration - Works with mcp-opener for automatic Firefox opening

  • šŸ”’ Optional Real-Time Pricing - Use Joker.com DMAPI for current prices (requires credentials)

  • šŸ“¦ Lightweight - No browser automation, pure API integration

Quick Start

1. Installation

# Navigate to package directory cd /var/home/viky/Code/packages/src/@mcp/mcp-domain-checker-price # Run setup script ./setup.sh

2. Configuration (Optional)

The server works immediately with built-in pricing data. Configuration is only needed for:

  • Real-time pricing updates (requires Joker.com credentials)

  • Affiliate commission tracking

# Copy environment template (optional) cp .env.example .env # Edit .env with your credentials (optional) nano .env

Optional - For Real-Time Pricing: Set Joker.com authentication:

Optional - For Affiliate Tracking: Set affiliate ID for commission tracking

3. Add to Claude Code

Add to .claude/settings.json or global MCP configuration:

{ "mcpServers": { "domain-checker-price": { "command": "node", "args": ["/var/home/viky/Code/packages/src/@mcp/mcp-domain-checker-price/dist/index.js"] } } }

Available Tools

1. get_version

Get server version and capabilities

Parameters: None

Example:

mcp__mcp-domain-checker-price__get_version()

2. get_domain_pricing

Fetch domain pricing from Joker.com (static data by default, real-time DMAPI optional)

Parameters:

  • domain (string, required) - Domain name to check (e.g., "example.com")

  • force_refresh (boolean, optional) - Bypass cache, default: false

  • use_api (boolean, optional) - Use real-time DMAPI instead of static data (requires credentials), default: false

Response:

{ "domain": "example.com", "pricing": { "registration_1yr": 12.36, "renewal_1yr": 14.50, "transfer": 12.36, "currency": "EUR" }, "special_offers": [ { "description": "create discount until 12/31/2024", "discount_price": 10.00 } ], "source_url": "https://dmapi.joker.com/request/query-price-list", "last_updated": "2025-12-11T14:30:00.000Z", "from_cache": false }

Example:

// Static pricing (default, fast, no auth required) mcp__mcp-domain-checker-price__get_domain_pricing({ domain: "myapp.com" }) // Real-time pricing (requires Joker.com credentials) mcp__mcp-domain-checker-price__get_domain_pricing({ domain: "myapp.com", use_api: true }) // Force refresh from cache mcp__mcp-domain-checker-price__get_domain_pricing({ domain: "myapp.com", force_refresh: true })

3. open_purchase_link

Generate purchase links with optional affiliate tracking

Parameters:

  • domain (string) - Single domain to purchase (mutually exclusive with domains)

  • domains (array) - Multiple domains to purchase (mutually exclusive with domain)

  • open_all (boolean, optional) - Open all URLs (true) or just first (false), default: false

Response (Single Domain):

{ "message": "Purchase link generated", "link": { "registrar": "joker", "domain": "example.com", "url": "https://joker.com/domain/registration?domain=example.com&aff=YOUR_ID", "is_affiliate": true, "price_estimate": 12.36, "currency": "EUR" }, "suggestion": "Use mcp__opener__open_browser to open this URL in Firefox" }

Response (Multiple Domains):

{ "message": "Purchase links generated for 3 domain(s)", "links": [...], "urls_to_open": ["https://joker.com/..."], "open_all": false, "total_estimate": { "total": 37.08, "currency": "EUR", "domains_with_pricing": 3, "domains_without_pricing": 0 }, "suggestion": "Use mcp__opener__open_browser to open 1 URL(s) in Firefox" }

Examples:

// Single domain mcp__mcp-domain-checker-price__open_purchase_link({ domain: "myapp.com" }) // Multiple domains (open first only) mcp__mcp-domain-checker-price__open_purchase_link({ domains: ["app.com", "app.io", "app.dev"] }) // Multiple domains (open all in separate tabs) mcp__mcp-domain-checker-price__open_purchase_link({ domains: ["app.com", "app.io", "app.dev"], open_all: true })

Integration with Opener MCP

Recommended Workflow:

// Step 1: Get pricing const pricing = await mcp__mcp-domain-checker-price__get_domain_pricing({ domain: "myapp.com" }); // Step 2: Generate purchase link const purchase = await mcp__mcp-domain-checker-price__open_purchase_link({ domain: "myapp.com" }); // Step 3: Open in Firefox await mcp__opener__open_browser({ url: purchase.link.url });

Pricing System

Two-Tier Architecture

Static Pricing (Default):

  • āœ… Zero configuration required

  • āœ… Instant response (no API calls)

  • āœ… No authentication needed

  • āš ļø Data may be slightly outdated (refresh with ./update-pricing.sh)

  • šŸ“Š Covers 10+ common TLDs by default (com, net, org, io, app, dev, etc.)

Real-Time DMAPI (Optional):

  • āœ… Current prices directly from Joker.com

  • āœ… Automatically updated

  • āš ļø Requires Joker.com credentials

  • āš ļø Slower (API call per request)

Updating Static Pricing

# Option 1: Use the shell script (recommended) ./update-pricing.sh # Option 2: Use pnpm script pnpm fetch-pricing

This fetches current pricing from Joker.com DMAPI and updates data/pricing.json. The MCP server will automatically use the updated data on next restart.

Note: Requires Joker.com credentials configured in .env

Configuration Reference

Environment Variables

# ============================================================================ # Joker.com DMAPI Authentication (OPTIONAL - for real-time pricing) # ============================================================================ # Option 1: API Key (Recommended) # Create at: Joker.com ā†’ My Profile ā†’ Manage API access keys MCP_JOKER_API_KEY="your-api-key-here" # Option 2: Username & Password (Alternative) MCP_JOKER_USERNAME="your-username" MCP_JOKER_PASSWORD="your-password" # ============================================================================ # Joker.com Affiliate Configuration (OPTIONAL - for commission tracking) # ============================================================================ # Sign up: https://joker.com/affiliate # Leave empty for non-affiliate links MCP_AFFILIATE_JOKER_ID="your-affiliate-id" # ============================================================================ # Pricing Cache Configuration # ============================================================================ # Cache duration in hours (default: 6) # Set to 0 to disable caching (not recommended) MCP_DOMAIN_PRICING_CACHE_TTL_HOURS=6

API Key vs Username/Password

Method

Security

Features

Recommended

API Key

āœ… Higher (revocable)

Can be read-only

āœ… Yes

Username/Password

āš ļø Lower

Full account access

āš ļø Only if needed

API Key Advantages:

  • Don't expose main credentials

  • Can be restricted to read-only mode

  • Can be revoked without changing password

  • Can create multiple keys for different uses

Architecture

mcp-domain-checker-price/ ā”œā”€ā”€ src/ ā”‚ ā”œā”€ā”€ index.ts # MCP server entry point ā”‚ ā”œā”€ā”€ dmapi-client.ts # Joker.com API authentication ā”‚ ā”œā”€ā”€ pricing-fetcher.ts # Two-tier pricing system ā”‚ ā”œā”€ā”€ static-pricing.ts # Static JSON loader (default) ā”‚ ā”œā”€ā”€ affiliate-links.ts # Purchase URL generation ā”‚ ā”œā”€ā”€ price-cache.ts # LRU cache with TTL ā”‚ ā””ā”€ā”€ tools/ ā”‚ ā”œā”€ā”€ get-version.ts # Version info tool ā”‚ ā”œā”€ā”€ get-domain-pricing.ts # Pricing tool ā”‚ ā””ā”€ā”€ open-purchase-link.ts # Purchase link tool ā”œā”€ā”€ scripts/ ā”‚ ā””ā”€ā”€ fetch-pricing.ts # DMAPI pricing fetcher ā”œā”€ā”€ data/ ā”‚ ā””ā”€ā”€ pricing.json # Static pricing database (optional) ā”œā”€ā”€ dist/ # Compiled JavaScript ā”œā”€ā”€ package.json ā”œā”€ā”€ tsconfig.json ā”œā”€ā”€ .env.example # Configuration template ā”œā”€ā”€ setup.sh # Setup script ā””ā”€ā”€ update-pricing.sh # Update static pricing data

How It Works

Pricing Fetch Flow (Default - Static)

  1. Check cache for domain pricing

  2. If cache miss ā†’ Load from data/pricing.json (or use bundled defaults)

  3. Extract pricing for domain's TLD

  4. Cache result for 6 hours

  5. Return pricing data

Pricing Fetch Flow (Real-Time - use_api=true)

  1. Check if DMAPI credentials configured

  2. If not configured ā†’ Fall back to static pricing

  3. Authenticate with Joker.com DMAPI (session valid 1 hour)

  4. Call query-price-list API

  5. Parse TSV response (tab-separated values)

  6. Extract pricing for domain's TLD

  7. Cache result for 6 hours

  8. Return pricing data

Affiliate Link Flow

  1. Load affiliate ID from environment

  2. Generate Joker.com registration URL

  3. Append &aff=YOUR_ID if affiliate configured

  4. Return URL with price estimate (if available)

Troubleshooting

āŒ "No pricing data found for TLD .xyz"

Solution:

  • Using static pricing: TLD not in bundled data. Run ./update-pricing.sh to fetch all Joker.com TLDs

  • Using real-time pricing: TLD might not be available through Joker.com or not in your reseller account's price list

āš ļø "DMAPI requested but not configured, using static pricing"

Info: You requested use_api=true but credentials not set. Server automatically falls back to static pricing. To use real-time pricing, set MCP_JOKER_API_KEY or MCP_JOKER_USERNAME + MCP_JOKER_PASSWORD in .env

āŒ "DMAPI login failed (HTTP 401)"

Solution: Check credentials - API key may be expired or invalid

āš ļø Cache always returns from_cache: false

Solution: Check MCP_DOMAIN_PRICING_CACHE_TTL_HOURS is > 0 in .env

āš ļø Affiliate links show is_affiliate: false

Solution: Set MCP_AFFILIATE_JOKER_ID in .env and restart server

Development

# Install dependencies pnpm install # Build TypeScript pnpm build # Watch mode pnpm dev # Update static pricing data (requires .env) ./update-pricing.sh # Run tests (if available) pnpm test

API Reference

Joker.com DMAPI Endpoints Used

  • /request/login - Authentication

  • /request/query-price-list - Complete TLD pricing list

Documentation: https://dmapi.joker.com/docs/

License

MIT Ā© Victoria Lackey

Sources

Contributing

This package is part of the @3viky/mcp monorepo ecosystem.

For issues and contributions, please visit the GitHub repository.

Built with Model Context Protocol | Powered by Joker.com DMAPI

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