LobsterDomains

Register domain names via crypto payments (USDC, USDT, ETH, BTC). Check availability, get pricing across 1000+ TLDs, and complete registration with on-chain...

LobsterDomains — AI-Powered Domain Registration with Crypto

Register domain names using cryptocurrency payments. Supports USDC/USDT stablecoins on multiple chains (Ethereum, Arbitrum, Base, Optimism), native ETH, and Bitcoin.

Authentication

Get your API key at https://lobsterdomains.xyz/api-keys (requires Ethereum wallet sign-in).

All requests require a Bearer token:

Authorization: Bearer ld_your_api_key_here

Set the environment variable:

export LOBSTERDOMAINS_API_KEY="ld_your_api_key_here"

Base URL

https://lobsterdomains.xyz

Tools

1. Check Domain Availability

Check if a domain is available and get pricing.

GET /api/v1/domains/check?domain={domain}

Parameters:

• domain (required): The domain name to check (e.g., example.com)

Response:

{
  "available": true,
  "domain": "example.com",
  "price": "13.50",
  "currency": "USDC"
}

2. Get Current Prices

Retrieve current ETH and BTC prices in USD for payment conversion.

GET /api/v1/prices

3. Get TLD Pricing

View pricing for all supported TLDs.

GET https://lobsterdomains.xyz/pricing

4. Register a Domain

Complete a domain registration after on-chain payment.

POST /api/v1/domains/register

Request Body:

{
  "domain": "example.com",
  "years": 1,
  "currency": "USDC",
  "chain": "base",
  "txHash": "0x...",
  "contact": {
    "firstName": "Jane",
    "lastName": "Doe",
    "organization": "Example Inc",
    "email": "[e-mail]",
    "phone": "+1.5551234567",
    "address": "123 Main St",
    "city": "San Francisco",
    "state": "CA",
    "postalCode": "94105",
    "country": "US"
  },
  "nameservers": ["ns1.example.com", "ns2.example.com"]
}

Fields:

• domain (required): Domain name to register
• years (required): Registration period, 1–10
• currency (required): USDC, USDT, ETH, or BTC
• chain (required for stablecoins/ETH): ethereum, arbitrum, base, or optimism
• txHash (required): On-chain transaction hash proving payment
• contact (required): Registrant contact information with 2-letter country code
• nameservers (optional): Custom nameservers; defaults to afraid.org

Response:

{
  "orderId": "abc123",
  "domain": "example.com",
  "status": "registered",
  "opensrsUsername": "...",
  "opensrsPassword": "...",
  "managementUrl": "https://..."
}

Important: The response includes opensrsUsername and opensrsPassword for post-purchase DNS and transfer management. Always present these credentials directly to the user and instruct them to store the credentials securely (e.g., in a password manager). Never persist these credentials in conversation history, logs, or any file. These are sensitive third-party credentials that grant full control over the registered domain.

5. Query Orders

Retrieve order history.

GET /api/v1/orders
GET /api/v1/orders?domain={domain}

Returns up to 50 latest orders. Results may include OpenSRS management credentials — always present these to the user directly and remind them to store credentials securely.

Payment Details

Recommended method: USDC or USDT stablecoins (6 decimal places)

Receiving address:

0x8939E62298779F5fE1b2acda675B5e85CfD594ab

Supported chains:

• Ethereum mainnet
• Arbitrum
• Base
• Optimism

Native ETH and Bitcoin are also accepted but require price verification via /api/v1/prices.

Example Workflow

1. Check availability: GET /api/v1/domains/check?domain=coolstartup.com
2. Confirm pricing with the user
3. User sends stablecoin payment on their preferred chain
4. Capture the transaction hash from the user
5. Register: POST /api/v1/domains/register with tx hash and contact details
6. Deliver credentials securely — present OpenSRS management details to the user and remind them to save in a password manager