Mmcp.market

RDAP API MCP server

by rdapapi.io·io.rdapapi/rdap·v1.2.0
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Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.

C67/100grade C
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Safety scan
C67/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

RDAP API tools (7)

write = sends, deletes, buys or posts
  • asn-lookupFree

    Look up normalized RDAP data (holder, country, status, registration dates) for an autonomous system number.

  • bulk-domain-lookupFree

    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.

  • domain-lookupFree

    Look up normalized RDAP registration data (registrar, status, dates, nameservers, contacts) for a domain name.

  • entity-lookupFree

    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.

  • ip-lookupFree

    Look up normalized RDAP allocation data (network range, holder, country, status, geofeed URL) for an IP address or CIDR block.

  • nameserver-lookupFree

    Look up normalized RDAP data (IP addresses, status, sponsoring registrar) for a nameserver hostname.

  • tldsFree

    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.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1477ms20/20
  • Tool poisoning7 tool descriptions checked15/15
  • Auth qualityAPI key sent as a header8/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 67/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

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

RDAP API: common questions

Is RDAP API MCP server safe?
With care: it is graded C, so read the findings first (67/100). Read the RDAP API safety report
How do I install RDAP API?
It runs remotely at rdapapi.io. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does RDAP API need an API key?
Yes. The registry entry asks for Authorization.
Is RDAP API maintained?
The latest release is v1.2.0.
Is RDAP API up?
100% of our last 5 checks got an answer. We check remote servers about four times a day.

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