Port Number Lookup API

GET Endpoint

https://api.apiverve.com/v1/portnumberlookup

Code Examples

Here are examples of how to call the Port Number Lookup API in different programming languages:

curl -X GET \
  "https://api.apiverve.com/v1/portnumberlookup?port=443" \
  -H "X-API-Key: your_api_key_here"

const response = await fetch('https://api.apiverve.com/v1/portnumberlookup?port=443', {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log(data);

import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

response = requests.get('https://api.apiverve.com/v1/portnumberlookup?port=443', headers=headers)

data = response.json()
print(data)

const https = require('https');
const url = require('url');

const options = {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
};

const req = https.request('https://api.apiverve.com/v1/portnumberlookup?port=443', options, (res) => {
  let data = '';
  res.on('data', (chunk) => data += chunk);
  res.on('end', () => console.log(JSON.parse(data)));
});

req.end();

<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/portnumberlookup?port=443');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-API-Key: your_api_key_here',
    'Content-Type: application/json'
]);

$response = curl_exec($ch);
curl_close($ch);

$data = json_decode($response, true);
print_r($data);

?>

package main

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

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/portnumberlookup?port=443", nil)

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

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

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

require 'net/http'
require 'json'

uri = URI('https://api.apiverve.com/v1/portnumberlookup?port=443')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Get.new(uri)
request['X-API-Key'] = 'your_api_key_here'
request['Content-Type'] = 'application/json'

response = http.request(request)
puts JSON.pretty_generate(JSON.parse(response.body))

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("X-API-Key", "your_api_key_here");

        var response = await client.GetAsync("https://api.apiverve.com/v1/portnumberlookup?port=443");
        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        Console.WriteLine(responseBody);
    }
}

Authentication

The Port Number Lookup API requires authentication via API key. Include your API key in the request header:

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Port Number Lookup API directly in your browser with live requests and responses.

Parameters

The Port Number Lookup API supports multiple query options. Use one of the following:

Response

The Port Number Lookup API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

{
  "status": "ok",
  "error": null,
  "data": {
    "port": 443,
    "service": "HTTPS",
    "protocol": "TCP",
    "description": "HTTP Secure (HTTP over TLS/SSL)",
    "category": "Web",
    "is_well_known": true,
    "is_registered": false,
    "is_dynamic": false
  }
}

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <port>443</port>
    <service>HTTPS</service>
    <protocol>TCP</protocol>
    <description>HTTP Secure (HTTP over TLS/SSL)</description>
    <category>Web</category>
    <is_well_known>true</is_well_known>
    <is_registered>false</is_registered>
    <is_dynamic>false</is_dynamic>
  </data>
</response>

status: ok
error: null
data:
  port: 443
  service: HTTPS
  protocol: TCP
  description: HTTP Secure (HTTP over TLS/SSL)
  category: Web
  is_well_known: true
  is_registered: false
  is_dynamic: false

Response Structure

All API responses follow a consistent structure with the following fields:

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Headers

Required and optional headers for Port Number Lookup API requests:

Learn more about request headers →

GraphQL AccessALPHA

Access Port Number Lookup through GraphQL to combine it with other API calls in a single request. Query only the port number lookup data you need with precise field selection, and orchestrate complex data fetching workflows.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

POST https://api.apiverve.com/v1/graphql

query {
  portnumberlookup(
    input: {
      port: 443
    }
  ) {
    port
    service
    protocol
    description
    category
    is_well_known
    is_registered
    is_dynamic
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Port Number Lookup API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Port Number Lookup directly from browser-based applications without proxy servers.

Browser Usage: You can call Port Number Lookup directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.

Learn more about CORS support →

Rate Limiting

Port Number Lookup API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Port Number Lookup users.

Learn more about rate limiting →

Rate Limit Headers

When rate limits apply, each Port Number Lookup response includes headers to help you track your usage:

Handling Rate Limits

Free Plan: When you exceed your rate limit, Port Number Lookup returns a 429 Too Many Requests status code. Your application should implement appropriate backoff logic to handle this gracefully.

Paid Plans: No rate limiting or throttling applied. All paid plans (Starter, Pro, Mega) are production-ready.

Best Practices for Port Number Lookup:

• Monitor the rate limit headers to track your Port Number Lookup usage (Free plan only)
• Cache port number lookup responses where appropriate to reduce API calls
• Upgrade to Pro or Mega for guaranteed no-throttle Port Number Lookup performance

Note: Port Number Lookup rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Port Number Lookup on Free tier.

Error Codes

The Port Number Lookup API uses standard HTTP status codes to indicate success or failure:

Learn more about error handling →

Need help? Contact support with your X-Request-ID for assistance.

Integrate Port Number Lookup with SDKs

Get started quickly with official Port Number Lookup SDKs for your preferred language. Each library handles authentication, request formatting, and error handling automatically.

Available for Node.js, Python, C#/.NET, and Android/Java. All SDKs are open source and regularly updated.

JitPack

Integrate Port Number Lookup with No-Code API Tools

Connect the Port Number Lookup API to your favorite automation platform without writing code. Build workflows that leverage port number lookup data across thousands of apps.

ZapierConnect Port Number Lookup to 6,000+ apps

MakeBuild visual port number lookup workflows

PipedreamCode-friendly port number lookup automation

n8nSelf-host your port number lookup workflows

Power AutomateUse Port Number Lookup in Microsoft 365

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