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Ambolt Domain RDAP Lookup
x402
Ambolt Domain RDAP Lookup is a paid API for AI agents from api.ambolt.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-11).
Looks up RDAP registration data for a domain name, returning registrar, status, nameservers, expiry, DNSSEC, and age information.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call data tools for developers and AI agents: company registers, documents, tenders, rates and on-chain facts as MCP tools, x402 endpoints and Apify Actors.
Output
A JSON object containing: domain name, registrar name, registration status flags (e.g. transfer prohibited), nameservers array, registration date, last changed date, expiry date, days to expiry, domain age in days, DNSSEC signed flag, whether the domain is registered, and the data source (IANA bootstrap RDAP). Registrant contact data is omitted per RDAP policy.
Example use cases
Verify domain legitimacy before outreach
“Before we send that partnership email, can you check the RDAP details for acmecorp.io — I want to confirm it's actually registered, who the registrar is, and that it's not about to expire?”
Monitor competitor domain expiry
“Can you check when competitor.com expires and how many days are left — I want to know if they forgot to renew it?”
Due diligence on acquired domain
“We're thinking of acquiring the domain vintagewatch.co — can you pull its full RDAP registration record so I can see how old it is, its current status flags, and the nameservers?”
Technical details
Endpoint
GEThttps://api.ambolt.dev/v1/domain-rdap?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, machine-readable RDAP data about a domain's registration lifecycle — registrar, status flags, expiry, nameservers, DNSSEC — without scraping a WHOIS text interface. Prefer this over raw WHOIS when you need JSON output, reliable parsing, or need to check expiry countdowns. It uses IANA's authoritative RDAP bootstrap, making it more reliable than third-party WHOIS aggregators for TLD-level data.
Side effects
- Invalid domain name format — returns error if domain doesn't match valid hostname pattern
- Domain not found in any RDAP registry — may return registered:false or lookup failure
- TLD not supported by IANA RDAP bootstrap — some obscure TLDs may not have RDAP services
- Network timeout reaching authoritative RDAP server — transient errors possible
- Payment failure via x402 — call not processed if USDC payment is not completed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "example.com",
"source": "Source: TLD registry RDAP service (IANA bootstrap). Registrant data omitted.",
"status": [
"client delete prohibited",
"client transfer prohibited",
"client update prohibited"
],
"ageDays": 11372,
"checkedAt": "2026-10-02T21:35:41.882Z",
"expiresAt": "2027-08-13T04:00:00Z",
"registrar": "RESERVED-Internet Assigned Numbers Authority",
"registered": true,
"nameservers": [
"elliott.ns.cloudflare.com",
"hera.ns.cloudflare.com"
],
"daysToExpiry": 314,
"dnssecSigned": true,
"registeredAt": "1995-08-14T04:00:00Z",
"lastChangedAt": "2026-08-14T08:01:43Z"
}
}Tags
x402
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