RDAP API
Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.
| Endpoint | https://rdapapi.io/mcp/rdap (streamable-http) |
|---|---|
| Registry version | 1.3.0 |
| Now | 7 tools · grade B (83) · pin ts_0f8f1dd692fc9295d0359eb27b4cb15f · protocol 2025-06-18 |
| First / last listed | 2026-11-08 03:30 UTC / 2026-11-08 03:30 UTC |
| Grade over time | 2026-11-08: B (83), 7 tools |
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Tools: domain-lookup bulk-domain-lookup ip-lookup asn-lookup nameserver-lookup entity-lookup tlds
domain-lookup | Look up normalized RDAP registration data (registrar, status, dates, nameservers, contacts) for a domain name. params: domain*, follow, whois |
bulk-domain-lookup | Look up normalized RDAP registration data for several domain names in one pooled call. Requires a Pro or Business plan; every domain in the batch counts against the quota. params: domains*, follow, whois |
ip-lookup | Look up normalized RDAP allocation data (network range, holder, country, status, geofeed URL) for an IP address or CIDR block. params: ip*, prefix |
asn-lookup | Look up normalized RDAP data (holder, country, status, registration dates) for an autonomous system number. params: asn* |
nameserver-lookup | Look up normalized RDAP data (IP addresses, status, sponsoring registrar) for a nameserver hostname. params: host* |
entity-lookup | Look up normalized RDAP data for an RIR entity handle — an organization or contact identifier such as "GOGL" or "ORG-RIEN1-RIPE". Only ARIN, RIPE, APNIC, LACNIC and AFRINIC handles resolve; a domain's registrar or registrant comes from domain-lookup instead. params: handle* |
tlds | List the TLDs this API can query, or describe one: which RDAP server answers for it, since when it has been supported, and how often that server fills each field. Metadata, so it never counts against the monthly quota. params: tld, server, since |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.