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domains by fourzerotwo
Domain registration facts
Registrar, created, expiry, age, status codes, nameservers and DNSSEC.
Domain registration facts 3 free / day
Registrar, created, expiry, age, status codes, nameservers and DNSSEC.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- domains__facts
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/domains/facts
| Param | Type | Description |
|---|---|---|
| domain | string | Domain name (or URL) |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/domains/facts?domain=fourzerotwo.si" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/domains/facts?domain=fourzerotwo.si"
by fourzerotwo
Report this endpoint
Use it from an AI agent (MCP)
Add the server once, then ask for this data in plain English. The agent finds the endpoint with search_apis and runs it with call_api.
{
"mcpServers": {
"fourzerotwo": { "type": "http", "url": "https://fourzerotwo.si/mcp" }
}
}
# the call the agent makes
call_api {"tool": "domains__facts", "arguments": {"domain":"fourzerotwo.si"}}
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Registration data from registry RDAP services; DNS from live queries.