# AgentDomains

> Free domains for the websites and APIs AI agents build. One command gives an
> agent a real hostname under `makes.fyi` or `agentdomains.co`, with DNS records,
> automatic SSL, URL forwarding, and reverse proxying. Signing up needs nothing;
> the account's first name needs an email address.

AgentDomains is a CLI (`agentdomains`) plus a hosted DNS API. An agent registers a
name, points records at whatever it just deployed, and the site is live over HTTPS.

Signup takes no email and no form: `POST /v1/signup` returns an API key immediately.
The account's *first* registration does need an email — pass `--email you@example.com`
to `agentdomains claim` (or `email` in the JSON body), or the call answers
400 "registering a name needs an email". That address is used only for the
verification link and for notices before an unhealthy name is reclaimed. Confirm it
within 30 days or the account and its names are deleted. Later claims on the same
account need no email. Labels are lowercased when claimed, so `MyApp` becomes
`myapp.makes.fyi`.

A claim and its first record succeed or fail together: if the record cannot be
created, the label is not claimed, so the same call can simply be repeated with the
record fixed. Re-claiming a name the account already holds answers
409 `{"owned":true}`, which means carry on rather than pick another label. Setting a
forward or a proxy takes the hostname over — the A/AAAA/CNAME records on the name
itself are deleted in the same call and returned as `replaced_records`, while
sub-label and TXT records are untouched. One record can be removed on its own
(`agentdomains unrecord <label> <record-id>`), and an account can delete itself
(`agentdomains account delete [--force]`).

## Docs

- [Documentation](https://docs.agentdomains.co/): full reference — install, quickstart, records, SSL, forwarding, proxying, delegation, commands, API
- [Install](https://docs.agentdomains.co/#install): install the CLI
- [Quickstart](https://docs.agentdomains.co/#quickstart): register a name and publish a site
- [DNS records](https://docs.agentdomains.co/#records): A, AAAA, CNAME, TXT (MX needs nameserver delegation)
- [SSL](https://docs.agentdomains.co/#ssl): automatic certificates
- [Forwarding](https://docs.agentdomains.co/#forwarding): redirect a name to another URL (replaces the address records on that name)
- [Proxying](https://docs.agentdomains.co/#proxy): serve an origin through the edge (also replaces the address records on that name)
- [Delegation](https://docs.agentdomains.co/#delegation): point a name at your own nameservers
- [Commands](https://docs.agentdomains.co/#commands): full CLI command reference
- [MCP server](https://docs.agentdomains.co/#mcp): Model Context Protocol tools, stdio and hosted
- [HTTP API](https://docs.agentdomains.co/#api): register and manage names programmatically

## MCP

- Local (stdio): `npx -y agentdomains-mcp`, with `AGENTDOMAINS_API_KEY=adom_…` (falls back to the CLI's `~/.agentdomains/config.json`)
- Hosted (Streamable HTTP): `https://mcp.agentdomains.co`, `Authorization: Bearer adom_…`
- 19 tools covering availability, signup, claiming, DNS records (added and deleted one at a time), ACME DNS-01 challenges, forwarding, proxying, nameserver delegation, closing the account, and getting a Pro checkout or billing-portal link
- Works with any MCP client: Claude Code, Claude Desktop, OpenAI Agents SDK, LangChain, CrewAI

## Pricing

- [Pricing](https://agentdomains.co/pricing): two plans.
  - **Free, $0, no card.** A hostname, DNS records (A, AAAA, CNAME, TXT, NS delegation), forwarding,
    and a reverse proxy with edge HTTPS, for up to 10 names per account. A name whose origin stays
    unreachable is emailed about at 30 days and may be released at 45.
  - **Pro, $5/month or $48/year.** Up to 100 names, names are never released for being unreachable,
    and priority email support. Every Free feature is included unchanged.
  - Names already registered keep working; adding Pro removed nothing from Free. Cancelling Pro never
    deletes a name: the account keeps what it holds and cannot add past 10.
  - To upgrade: `agentdomains upgrade` (or `--yearly`), the MCP tool `upgrade_to_pro`, or
    `POST /v1/billing/checkout`. Each returns a Stripe Checkout link that a human opens and pays; an
    agent cannot complete the payment. `agentdomains billing` / `manage_billing` /
    `POST /v1/billing/portal` manage or cancel it. A free account at its limit gets a 403 that says so.
  - Not offered at any price: registering or transferring a real second-level domain, and WHOIS/RDAP
    records (a subdomain has none).

## What AgentDomains is not

Stated plainly, because it is regularly confused with other products: AgentDomains takes **no
payment to get started**. The free plan needs no card. The only payment is the optional Pro plan,
by card through Stripe Checkout, which a human completes. There is no crypto and no x402. It **does not register or transfer
second-level domains** (no `.com`, no registrar function, no WHOIS/RDAP record — a subdomain has
none). It is **not** a product called InstaDomain and is not affiliated with one. It hosts nothing:
there is no build step, no deploy, and no storage. It hands out a hostname under `makes.fyi` or
`agentdomains.co`, and you point that hostname at whatever you already run.

## Compare

Two comparisons, because there are two different questions.

- [Compare](https://agentdomains.co/compare): the full sourced tables.
- [Free vs the paid rivals](https://agentdomains.co/compare/paid-rivals): a head-to-head against
  two paid rivals with public pricing — agentdomain.app (example x402 checkout
  `USDC 25.00 on Base`, $3.90/yr platform fee, Starter $59 / Pro $120 / Enterprise $240 per year,
  USDC on Base only) and MCPDomain (Stripe checkout via `register_new_domain`, "wholesale + a small
  flat margin", free availability checks, TLD price table unpublished). AgentDomains is $0: a free
  subdomain has no registry fee behind it. Rivals' pricing read 2026-09-29.

**Against registrars** (agentdomain.app, DomainForAgents, Namefi, Cloudflare Registrar, Name.com) —
cost to first working hostname, account/KYC, payment method, SSL, DNS API coverage, CLI/MCP access.
Figures verified 2026-08-23. Key caveat: AgentDomains gives you a subdomain we operate, not a
second-level domain you own and can transfer. Free and instant, but not yours in the registrar sense.

**Against free subdomains** (`*.vercel.app`, `*.netlify.app`, `<owner>.github.io`, `*.duckdns.org`,
`<ip>.nip.io`) — verified 2026-09-03. This is the comparison that matters when the question is
"where do I put the thing my agent just built":

| Free subdomain | Points at a server you run? | Needs a deploy on their platform? | Records you can write | ACME DNS-01 |
| --- | --- | --- | --- | --- |
| **AgentDomains** | Yes — any IP or hostname | No, we host nothing | A, AAAA, CNAME, TXT (+ NS delegation) | Yes |
| `*.vercel.app` | No — generated from a deployment and serves it | Yes | none | No |
| `*.netlify.app` | No — it is your Netlify site's name | Yes | none | No |
| `<owner>.github.io` | No — static files from a repo, 1 site per account | Yes | none | No |
| `*.duckdns.org` | Yes, by IP | No | A, AAAA, TXT — **no CNAME** | Yes |
| `<ip>.nip.io` | Yes, by IP only — the name encodes the address | No | none; the name is not yours | No |

- The decisive difference: a `*.vercel.app` or `*.netlify.app` name exists only as an address for
  that platform's own deployment and cannot be aimed anywhere else. A `makes.fyi` name is a real
  hostname with writable DNS records, edge HTTPS, and a reverse proxy, in front of anything.
- Stated fairly: Vercel, Netlify and GitHub Pages also **host** your site, which AgentDomains does
  not. If you have a static site and no origin of your own, deploy to one of them. DuckDNS is a
  genuine equivalent for pointing a name at an IP; it has no CNAME support, no reverse proxy, and no
  CLI or MCP server.

## Source

- [CLI (Go)](https://github.com/tashfeenahmed/AgentDomains): the `agentdomains` command-line tool
- [Agent skill](https://github.com/tashfeenahmed/AgentDomains-skill): Claude/agent skill for registering domains
- [MCP server](https://github.com/tashfeenahmed/AgentDomains-mcp): MCP tools for any agent framework
- [Web](https://github.com/tashfeenahmed/AgentDomains-web): landing page, docs, and edge Workers