API reference

Name Availability API API

Check a name across domains, social handles and package registries at once. Use this reference to choose an operation and integrate its documented response contract.

Operations

GET /v1/name-check View API reference

GET /v1/name-check

Operation: checkNameAvailability Credits and authentication: 5 Authentication required
GET /v1/name-check Credits: 5

Query parameters

Parameter Type required
name string required
tlds string optional
platforms string optional
packages string optional

Response fields

Field Type
name string
status string
checked_at string
verdict string
score integer | null
determinacy integer
summary object
summary.com_available boolean | null
summary.domains object
summary.domains.checked integer
summary.domains.free integer
summary.domains.taken integer
summary.domains.unknown integer
summary.handles object
summary.handles.checked integer
summary.handles.free integer
summary.handles.taken integer
summary.handles.unknown integer
summary.packages object
summary.packages.checked integer
summary.packages.free integer
summary.packages.taken integer
summary.packages.unknown integer
domains[] object[]
domains[] object
domains[].domain string
domains[].tld string
domains[].status string
domains[].reason string | null
handles[] object[]
handles[] object
handles[].platform string
handles[].status string
handles[].url string | null
handles[].reason string | null
packages[] object[]
packages[] object
packages[].registry string
packages[].name string
packages[].status string
packages[].url string | null
packages[].reason string | null
meta object
meta.duration_ms integer

Example request

curl -H "X-API-Key: $DOMSCAN_API_KEY" "https://domscan.net/v1/name-check?name=acmeflow&tlds=com%2Cio%2Cai&platforms=github%2Cinstagram%2Ctiktok&packages=npm%2Cpypi"
const response = await fetch("https://domscan.net/v1/name-check?name=acmeflow&tlds=com%2Cio%2Cai&platforms=github%2Cinstagram%2Ctiktok&packages=npm%2Cpypi", {
  headers: { "X-API-Key": process.env.DOMSCAN_API_KEY },
});
const data = await response.json();
console.log(data);
import os
import requests

response = requests.get(
    "https://domscan.net/v1/name-check?name=acmeflow&tlds=com%2Cio%2Cai&platforms=github%2Cinstagram%2Ctiktok&packages=npm%2Cpypi",
    headers={"X-API-Key": os.environ["DOMSCAN_API_KEY"]},
)
print(response.json())
package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
)

func main() {
	req, err := http.NewRequest(http.MethodGet, "https://domscan.net/v1/name-check?name=acmeflow&tlds=com%2Cio%2Cai&platforms=github%2Cinstagram%2Ctiktok&packages=npm%2Cpypi", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("X-API-Key", os.Getenv("DOMSCAN_API_KEY"))

	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	data, err := io.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(resp.Status, string(data))
}
require "json"
require "net/http"

uri = URI("https://domscan.net/v1/name-check?name=acmeflow&tlds=com%2Cio%2Cai&platforms=github%2Cinstagram%2Ctiktok&packages=npm%2Cpypi")
request = Net::HTTP::Get.new(uri)
request["X-API-Key"] = ENV.fetch("DOMSCAN_API_KEY")

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end
puts JSON.pretty_generate(JSON.parse(response.body))

Example response

{
  "name": "acmeflow",
  "status": "ok",
  "checked_at": "2026-10-13T18:00:00.000Z",
  "verdict": "mostly_available",
  "score": 80,
  "determinacy": 100,
  "summary": {
    "com_available": false,
    "domains": {
      "checked": 2,
      "free": 1,
      "taken": 1,
      "unknown": 0
    },
    "handles": {
      "checked": 2,
      "free": 2,
      "taken": 0,
      "unknown": 0
    },
    "packages": {
      "checked": 1,
      "free": 1,
      "taken": 0,
      "unknown": 0
    }
  },
  "domains": [
    {
      "domain": "acmeflow.com",
      "tld": "com",
      "status": "taken",
      "reason": null
    },
    {
      "domain": "acmeflow.io",
      "tld": "io",
      "status": "available",
      "reason": null
    }
  ],
  "handles": [
    {
      "platform": "github",
      "status": "available",
      "url": null,
      "reason": null
    },
    {
      "platform": "instagram",
      "status": "available",
      "url": null,
      "reason": null
    }
  ],
  "packages": [
    {
      "registry": "npm",
      "name": "acmeflow",
      "status": "not_found",
      "url": null,
      "reason": "similar_name_rules"
    }
  ],
  "meta": {
    "duration_ms": 4210
  }
}

HTTP status codes

  • 200 OK
  • 400 Bad Request
  • 401 Unauthorized
  • 402 Payment Required
  • 429 Too Many Requests

Reference resources