Domain Name Registration For Agents

Register and manage ICANN domains for AI agents. Wallet authentication (SIWE/SIWS), USDC payments on Base or Solana, full DNS management.

AgentNS - Domain Registration for AI Agents

Use this skill when you need to register domains, check domain availability, or manage DNS records for an agent or project.

Installation

bash

pip install agentns-client

# For Solana wallet support:
pip install agentns-client[solana]

Complete Workflow

python

from agentns_client import AgentNSClient, load_or_create_wallet

# 1. Create client with wallet (auto-creates wallet.json if needed)
account = load_or_create_wallet()
client = AgentNSClient(account=account)

# 2. Check domain availability (no auth required)
result = client.check_domain("myagent.xyz")
if not result.available:
    print(f"{result.domain} is not available")
    # Search across 20 TLDs to find alternatives
    results = client.search_domains("myagent")
    available = [r for r in results if r.available]
    for r in available:
        print(f"{r.domain}: ${r.price_usdc} USDC")

# 3. Authenticate with wallet signature
client.login()

# 4. Create registrant profile (one-time, ICANN requirement)
client.ensure_registrant({
    "name": "Agent Smith",
    "street_address": "123 AI Street",
    "city": "San Francisco",
    "state_province": "CA",
    "postal_code": "94102",
    "country_code": "US",
    "email": "[e-mail]",
    "phone": "[phone]",
})

# 5. Register domain (payment handled automatically)
domain = client.register_domain("myagent.xyz")
print(f"Registered: {domain.domain}")
print(f"Expires: {domain.expires_at}")

# 6. Add DNS records
client.add_dns("myagent.xyz", type="A", host="@", value="192.0.2.1")
client.add_dns("myagent.xyz", type="CNAME", host="www", value="myagent.xyz")
client.add_dns("myagent.xyz", type="TXT", host="@", value="v=spf1 -all")

Wallet Setup

EVM (Base network - default):

python

from agentns_client import load_or_create_wallet
account = load_or_create_wallet("wallet.json")  # Creates if missing
print(f"Address: {account.address}")
# Fund with USDC on Base network before registering

Solana:

python

from agentns_client import load_or_create_solana_wallet
keypair = load_or_create_solana_wallet("solana_wallet.json")
print(f"Address: {keypair.pubkey()}")
# Fund with USDC on Solana before registering

Client Methods

Domain Operations

python

# Check single domain (no auth)
result = client.check_domain("example.com")
# Returns: DomainCheck(domain, available, price_usdc)

# Search across 20 TLDs (no auth)
results = client.search_domains("mycompany")
# Searches: com, io, net, co, ai, xyz, dev, app, org, tech,
#           club, online, site, info, me, biz, us, cc, tv, gg

# Register domain (requires auth + USDC balance)
domain = client.register_domain("example.xyz", years=1)
# Returns: DomainInfo(domain, owner_address, status, registered_at, expires_at)

# List owned domains
domains = client.list_domains()

DNS Management

python

# List DNS records
records = client.list_dns("example.xyz")

# Add record
record = client.add_dns(
    domain="example.xyz",
    type="A",           # A, AAAA, CNAME, MX, TXT, SRV, CAA
    host="@",           # @ for root, or subdomain name
    value="192.0.2.1",
    ttl=3600,           # 300-86400 seconds
    distance=10         # Required for MX/SRV only
)

# Update record
client.update_dns("example.xyz", record_id="12345", value="192.0.2.2")

# Delete record
client.delete_dns("example.xyz", record_id="12345")

Nameservers

python

# Get current nameservers
ns = client.get_nameservers("example.xyz")
# Default: ["ns1.namesilo.com", "ns2.namesilo.com"]

# Change to custom nameservers (e.g., Cloudflare)
client.set_nameservers("example.xyz", [
    "ns1.cloudflare.com",
    "ns2.cloudflare.com"
])

Registrant Profile

python

# Get profile
profile = client.get_registrant()

# Create profile (required before first domain registration)
profile = client.create_registrant({
    "name": "Required Name",
    "street_address": "123 Main St",
    "city": "San Francisco",
    "state_province": "CA",
    "postal_code": "94102",
    "country_code": "US",        # ISO 3166-1 alpha-2
    "email": "[e-mail]",
    "phone": "[phone]",
    "organization": "Optional Org",  # Optional
    "whois_privacy": True            # Optional, default True
})

# Update profile
client.update_registrant({"email": "[e-mail]"})

# Get or create (recommended)
profile = client.ensure_registrant({...})

Error Handling

python

from agentns_client.exceptions import (
    AgentNSError,           # Base exception
    AuthenticationError,    # Invalid/expired JWT (401)
    PaymentRequiredError,   # Insufficient USDC balance (402)
    NotFoundError,          # Domain/record not found (404)
    ConflictError,          # Profile exists, domain taken (409)
    ValidationError,        # Invalid input (400)
    RateLimitError,         # Too many requests (429)
)

try:
    domain = client.register_domain("example.xyz")
except PaymentRequiredError as e:
    print(f"Need {e.payment_requirement.amount} USDC")
    print(f"Send to: {client.wallet_address}")
except ConflictError:
    print("Domain already registered or unavailable")
except AuthenticationError:
    client.login()  # Re-authenticate

Important Notes

• USDC required: Fund your wallet with USDC on Base (EVM) or Solana before registering
• Registrant profile: ICANN requires contact info - create once, reused for all domains
• WHOIS privacy: Free on all domains, enabled by default
• 400+ TLDs: Check any TLD with check_domain(), search 20 popular ones with search_domains()
• Pricing: Domain cost + 20% markup (minimum $4), paid in USDC

Resources

• PyPI: https://pypi.org/project/agentns-client/
• GitHub: https://github.com/vibrant/agentns_client
• API Docs: https://agentns.xyz/docs
• Support: @AgentNSxyz