Proxy Checker

New

by StacklayerInternetv1Updated 2026-03-31

0.0(0 reviews)

Operational checks

Monthly Requests

Proxy dependent

Avg Latency

99.9% uptime target

Uptime SLA

Endpoints

About this API

Proxy Checker offers a free validation flow and a premium deep-check flow. The free /v1/proxy/validate endpoint checks connectivity against api.ipify.org and Stacklayer IP intelligence, while still returning placeholder target results that explain the premium checks require balance. The premium /v1/proxy/check endpoint runs the full default target set for Google, Cloudflare, IPInfo, and IPQualityScore.

HTTP, HTTPS, SOCKS4, and SOCKS5 proxy support
Ephemeral username/password authentication support with redacted logging
Egress IP discovery from api.ipify.org plus reverse DNS and IP intelligence enrichment
Free validation against api.ipify.org and Stacklayer IP intelligence
Premium default target matrix for Google, Cloudflare, IPInfo, and IPQualityScore
Shared browser-session checks for premium browser targets
Synchronous batch checking for multiple proxies in one request

Quick Start

Shell

curl -X POST \
  "https://api.apigrid.net/v1/proxy/validate" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "host": "proxy.example.net",
  "port": 8080,
  "username": "demo-user",
  "password": "demo-pass",
  "timeoutMs": 30000
}'

Response example

JSON

{
  "proxy": {
    "protocol": "http",
    "detectedProtocol": "http",
    "host": "proxy.example.net",
    "port": 8080,
    "username": "demo-user",
    "hasAuth": true
  },
  "alive": true,
  "authAccepted": true,
  "connectivity": {
    "success": true,
    "failureStage": null,
    "latencyMs": 812,
    "proxyResponseStatus": 200,
    "statusText": "OK",
    "error": null
  },
  "egress": {
    "ip": "198.51.100.44",
    "rdns": [
      "edge-proxy.example.net"
    ],
    "countryCode": "US",
    "countryName": "United States",
    "city": "Ashburn",
    "asNumber": 14618,
    "asName": "AMAZON-AES",
    "asDomain": "amazon.com",
    "organization": "Amazon.com, Inc.",
    "isp": "Amazon.com, Inc.",
    "linkType": "hosting",
    "usageType": "hosting",
    "isProxy": true,
    "proxyType": "proxy",
    "isTor": false,
    "threatLevel": "Medium"
  },
  "anonymity": "elite",
  "targetResults": [
    {
      "target": "google_search",
      "methodUsed": "browser",
      "reachable": false,
      "verdict": "indeterminate",
      "httpStatus": null,
      "finalUrl": "https://www.google.com/search?q=example.com",
      "latencyMs": null,
      "error": "Requires balance in your account",
      "signals": {}
    }
  ],
  "checkedAt": "2026-03-31T09:12:00.000Z"
}

Free / 1K

starting price

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Free lookup endpoints included. 3 premium endpoints unlock on paid access.

Provider

Stacklayer

Verified Provider

SDKs

cURLNode.jsPython

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Statistics

Monthly API callsOperational checks

Average latencyProxy dependent

Uptime SLA99.9% uptime target

Endpoints4

Versionv1

Last updated2026-03-31