REST API · JSON · through RapidAPI

Bulk .com domain registration check via RDAP API

Check a list of .com domains in bulk and get the registrar, creation and expiry dates, status codes and nameservers straight from the Verisign registry's public RDAP service.

Read from the official source when you call (rdap.verisign.com); no personal data. GET /v1/domain-availability answers {"product", "count", "items", "fetched_at"}.

Get a key on RapidAPI plans and pricing are on the listing; one key covers every endpoint.

Parameters

Parameter	Type	What it does	Example
`domains`	array	Registered .com domain names to look up, e.g. ["example.com", "google.com"]. A name the registry does not know (available) returns a 404 and no row.	`["example.com", "google.com", "apify.com"]`
`limit`	integer	At most this many results (1–1000, default 100).	`20`

What each result holds

Field	Type
`domain`	text
`registered`	bool
`registrar_id`	id
`registrar_name`	text
`created_at`	datetime
`expires_at`	datetime
`status`	list
`nameserver_1`	text
`nameserver_2`	text

Call it

With curl:

curl -G "https://domain-availability-api-com-bulk-rdap-lookup.p.rapidapi.com/v1/domain-availability" \
  --data-urlencode domains=example.com,google.com,apify.com \
  --data-urlencode limit=20 \
  -H "X-RapidAPI-Key: $RAPIDAPI_KEY" \
  -H "X-RapidAPI-Host: domain-availability-api-com-bulk-rdap-lookup.p.rapidapi.com"

With Python (pip install requests):

import os, requests

r = requests.get(
    "https://domain-availability-api-com-bulk-rdap-lookup.p.rapidapi.com/v1/domain-availability",
    params={'domains': 'example.com,google.com,apify.com', 'limit': 20},
    headers={"X-RapidAPI-Key": os.environ["RAPIDAPI_KEY"], "X-RapidAPI-Host": "domain-availability-api-com-bulk-rdap-lookup.p.rapidapi.com"},
    timeout=120,
)
for item in r.json()["items"]:
    print(item)

For code and AI agents that pick tools at run time, GET /v1/products lists every endpoint with its parameters and fields.

Questions

How fresh is it? Each call reads the official source then; an identical query within 15 minutes is answered from a cache.

What if the source is down? The answer says so: a 502, or "partial": true when only some of its requests failed.