Domain availability, domain name search

$0.01 per call · failed calls are never charged · no account or subscription: pay per call with a card key or USDC

Is a domain name free? Check one name across up to 20 TLDs at once (default com, net, org, io, ai, co, app, dev, xyz, me): available, taken (with registrar, creation and expiry dates) or likely available, from each registry's RDAP server, with DNS where a TLD has no RDAP. Use to pick a product or company name, or to check a brand before launch. Availability is not a price quote: premium and reserved names exist.

Run it free (25 free calls) Buy credits by card (from $1) Example result (JSON)

Try it with your own inputs

The name to check, with or without a TLD (acme, acme.com)

Uses one of your 25 free calls. Nothing is charged, and a call that fails is not counted.

Inputs

NameTypeDescription
name (required)stringThe name to check, with or without a TLD (acme, acme.com)
tldsstringTLDs to check, comma-separated (default com,net,org,io,ai,co,app,dev,xyz,me)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/domain/availability?name=agentdatatools"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/domain/availability?name=agentdatatools&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "name": "agentdatatools",
  "available": [
    "agentdatatools.net"
  ],
  "results": [
    {
      "domain": "agentdatatools.com",
      "status": "taken",
      "method": "rdap",
      "registrar": "Example Registrar, Inc.",
      "created": "2024-03-01",
      "expires": "2027-03-01"
    },
    {
      "domain": "agentdatatools.net",
      "status": "available",
      "method": "rdap"
    }
  ]
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is domain_availability, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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