All servers · Cloud & networking

RDAP API

io.rdapapi/rdap · v1.3.0

Tools changed (7 days)

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	prompts, resources, tools
Tool definitions	7 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.

streamable-http · https://rdapapi.io/mcp/rdap

claude mcp add --transport http rdap https://rdapapi.io/mcp/rdap

{
  "mcpServers": {
    "rdap": {
      "url": "https://rdapapi.io/mcp/rdap"
    }
  }
}

domain-lookup
Look up normalized RDAP registration data (registrar, status, dates, nameservers, contacts) for a domain name.
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.
ip-lookup
Look up normalized RDAP allocation data (network range, holder, country, status, geofeed URL) for an IP address or CIDR block.
asn-lookup
Look up normalized RDAP data (holder, country, status, registration dates) for an autonomous system number.
nameserver-lookup
Look up normalized RDAP data (IP addresses, status, sponsoring registrar) for a nameserver hostname.
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.
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.

2026-10-17: domain-lookup, bulk-domain-lookup, ip-lookup, asn-lookup, nameserver-lookup, entity-lookup, tlds
2026-10-16: domain-lookup, bulk-domain-lookup, ip-lookup, asn-lookup, nameserver-lookup, entity-lookup, tlds

Website · JSON · Text for agents · Registry updated 2026-10-10