Agent domain services compared
Checked on 29 October 2026 from each provider’s own public pages (linked under each row). Products change: check the sources before relying on a detail. Anything we couldn’t verify is left out rather than guessed. Spotted an error? Tell us.
HeadlessDomains’ .agent is a Handshake name, not an ICANN top-level domain. HeadlessDomains itself notes it differs from the proposed ICANN .agent. StableDomains sells ICANN domains only.
| Service | What you get | Payment | Signup | Agent interfaces |
|---|---|---|---|---|
| StableDomains (us) | ICANN domains (.com, .xyz, .ai and more), premium names, expiring/drop radar | USDC/USDT on Base, Ethereum, Arbitrum, Polygon, HyperEVM, BNB Chain, Solana; x402 on Base | None to buy. Optional instant agent API key (POST /api/v1/agents/signup), email, wallet or OAuth | REST, MCP (hosted), x402, OpenAPI, skills.md |
| agentdomain.app Sources: Homepage | Traditional domain (.com, .ai, .xyz) plus a Basename on Base, AgentID NFT, built-in email, auto SSL and DNS | USDC over x402 (site: “Powered by Base, x402, and Coinbase”) | “No accounts, no KYC” (homepage) | TypeScript SDK, MCP server, AgentKit and ElizaOS plugins |
| MCPDomain Sources: Homepage, GitHub README | ICANN domains via OpenSRS/Tucows (“700+ TLDs”), free email forwarding, DNS, AI-crawler stats | register_new_domain returns a Stripe checkout URL | Free tools need no auth; registration and configuration require a free MCPDomain account | MCP only: hosted mcpdomain.ai/mcp or npx mcpdomain, 7 tools |
| DomainForAgents Sources: MCP registry listing, Forge registry | Domain registrar API: search, register, renew, DNS | Balance, card, or USDC (per its MCP package listing) | API key via POST api.domainforagents.io/api/v1/auth/register | MCP (@domainforagents/mcp, stdio) and REST API |
| AgentDomains Sources: Homepage, Their own compare page | Free subdomains of makes.fyi or agentdomains.co (not your own registered domain) | Free to start; optional paid plan | Signup returns an API key with no email; first name claim needs an email confirmation link | Go CLI, MCP (hosted mcp.agentdomains.co or npx agentdomains-mcp), Claude Code skill |
| HeadlessDomains | .agent, .boss, .factory, .chatbot and other names. These are Handshake names, NOT ICANN domains: they don’t resolve in normal browsers/DNS without Handshake-aware resolvers | MPP payments, x402 / Base USDC (site footer) | Login/register; agent setup prompt | llms.txt, skill.md, OpenAPI, MCP endpoint |
Note: domainforagents.io did not load when we checked on 29 October 2026, so that row uses its public MCP package listings. See also StableDomains vs Namecheap and Porkbun.