IP Blacklist Lookup API

Overview

To use IP Blacklist Lookup, you need an API key. You can get one by creating a free account and visiting your dashboard.

GET Endpoint

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

Example

How to call the IP Blacklist Lookup API in different programming languages.

curl -X GET \
  "https://api.apiverve.com/v1/ipblacklistlookup?ip=185.220.101.1" \
  -H "X-API-Key: your_api_key_here"

const response = await fetch('https://api.apiverve.com/v1/ipblacklistlookup?ip=185.220.101.1', {
  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/ipblacklistlookup?ip=185.220.101.1', headers=headers)

data = response.json()
print(data)

package main

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

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/ipblacklistlookup?ip=185.220.101.1", 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))
}

{
  "status": "ok",
  "error": null,
  "data": {
    "ipAddress": "185.220.101.1",
    "isIPBlacklisted": true,
    "inbound": {
      "found": true,
      "description": "IP is known for malicious inbound activity (spam, scanning, brute-force attacks)"
    },
    "outbound": null,
    "threatLevel": "high",
    "ipDetails": {
      "ip": "185.220.101.1",
      "country": "DE",
      "region": "BY",
      "timezone": "Europe/Berlin",
      "city": "Nuremberg",
      "coordinates": [
        49.4478,
        11.0683
      ],
      "countryName": "Germany",
      "regionName": "Bavaria",
      "postalCode": "90403",
      "continent": "EU",
      "continentName": "Europe",
      "accuracyRadius": 20
    }
  }
}

Authentication

The IP Blacklist 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 IP Blacklist Lookup API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the IP Blacklist Lookup API:

Response

The IP Blacklist Lookup API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

<?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>
    <ipAddress>185.220.101.1</ipAddress>
    <isIPBlacklisted>true</isIPBlacklisted>
    <inbound>
      <found>true</found>
      <description>IP is known for malicious inbound activity (spam, scanning, brute-force attacks)</description>
    </inbound>
    <outbound xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
    <threatLevel>high</threatLevel>
    <ipDetails>
      <ip>185.220.101.1</ip>
      <country>DE</country>
      <region>BY</region>
      <timezone>Europe/Berlin</timezone>
      <city>Nuremberg</city>
      <coordinates>
        <coordinate>49.4478</coordinate>
        <coordinate>11.0683</coordinate>
      </coordinates>
      <countryName>Germany</countryName>
      <regionName>Bavaria</regionName>
      <postalCode>90403</postalCode>
      <continent>EU</continent>
      <continentName>Europe</continentName>
      <accuracyRadius>20</accuracyRadius>
    </ipDetails>
  </data>
</response>

status: ok
error: null
data:
  ipAddress: 185.220.101.1
  isIPBlacklisted: true
  inbound:
    found: true
    description: >-
      IP is known for malicious inbound activity (spam, scanning, brute-force
      attacks)
  outbound: null
  threatLevel: high
  ipDetails:
    ip: 185.220.101.1
    country: DE
    region: BY
    timezone: Europe/Berlin
    city: Nuremberg
    coordinates:
      - 49.4478
      - 11.0683
    countryName: Germany
    regionName: Bavaria
    postalCode: '90403'
    continent: EU
    continentName: Europe
    accuracyRadius: 20

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

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access IP Blacklist Lookup through GraphQL to combine it with other API calls in a single request. Query only the ip blacklist 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 {
  ipblacklistlookup(
    input: {
      ip: "185.220.101.1"
    }
  ) {
    ipAddress
    isIPBlacklisted
    inbound {
      found
      description
    }
    outbound
    threatLevel
    ipDetails {
      ip
      country
      region
      timezone
      city
      coordinates
      countryName
      regionName
      postalCode
      continent
      continentName
      accuracyRadius
    }
  }
}

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

CORS Support

The IP Blacklist Lookup API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

IP Blacklist Lookup requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The IP Blacklist Lookup API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for IP Blacklist Lookup

Official IP Blacklist Lookup packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

IP Blacklist Lookup works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

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