SERP API

SEMUST-API-USER: your_username
SEMUST-API-PASSWORD: your_password

{
  "keyword": "best seo tools",
  "language": "en",
  "country": "US",
  "format": "json",
  "mobile": false,
  "start_page": 1,
  "end_page": 1
}

curl -X POST https://data.semust.com/v1/serp \
  -H "Content-Type: application/json" \
  -H "SEMUST-API-USER: your_username" \
  -H "SEMUST-API-PASSWORD: your_password" \
  -d '{
    "keyword": "best seo tools",
    "language": "en",
    "country": "US",
    "format": "json"
  }'

import requests

response = requests.post(
    "https://data.semust.com/v1/serp",
    headers={
        "SEMUST-API-USER": "your_username",
        "SEMUST-API-PASSWORD": "your_password",
    },
    json={
        "keyword": "best seo tools",
        "language": "en",
        "country": "US",
        "format": "json",
    },
)

if response.status_code == 200:
    data = response.json()
    for result in data.get("organic", []):
        print(f"{result['rank']}. {result['title']}")
        print(f"   URL: {result['link']}")
        print(f"   Source: {result.get('source', 'N/A')}")
else:
    print(f"Error [{response.status_code}]: {response.text}")

const response = await fetch("https://data.semust.com/v1/serp", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "SEMUST-API-USER": "your_username",
    "SEMUST-API-PASSWORD": "your_password",
  },
  body: JSON.stringify({
    keyword: "best seo tools",
    language: "en",
    country: "US",
    format: "json",
  }),
});

if (response.ok) {
  const data = await response.json();
  data.organic?.forEach((result) => {
    console.log(`${result.rank}. ${result.title}`);
    console.log(`   URL: ${result.link}`);
    console.log(`   Source: ${result.source || "N/A"}`);
  });
} else {
  const text = await response.text();
  console.error(`Error [${response.status}]: ${text}`);
}

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
)

func main() {
	payload := map[string]interface{}{
		"keyword":  "best seo tools",
		"language": "en",
		"country":  "US",
		"format":   "json",
	}
	body, _ := json.Marshal(payload)

	req, _ := http.NewRequest("POST",
		"https://data.semust.com/v1/serp",
		bytes.NewBuffer(body))
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("SEMUST-API-USER", "your_username")
	req.Header.Set("SEMUST-API-PASSWORD", "your_password")

	resp, err := (&http.Client{}).Do(req)
	if err != nil {
		fmt.Printf("Request failed: %v\n", err)
		return
	}
	defer resp.Body.Close()
	respBody, _ := io.ReadAll(resp.Body)

	if resp.StatusCode == 200 {
		var data map[string]interface{}
		json.Unmarshal(respBody, &data)
		if organic, ok := data["organic"].([]interface{}); ok {
			for _, item := range organic {
				r := item.(map[string]interface{})
				fmt.Printf("%v. %v\n", r["rank"], r["title"])
				fmt.Printf("   URL: %v\n", r["link"])
				fmt.Printf("   Source: %v\n", r["source"])
			}
		}
	} else {
		fmt.Printf("Error %d: %s\n",
			resp.StatusCode, string(respBody))
	}
}

<?php

$payload = json_encode([
    "keyword"  => "best seo tools",
    "language" => "en",
    "country"  => "US",
    "format"   => "json",
]);

$ch = curl_init("https://data.semust.com/v1/serp");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Content-Type: application/json",
    "SEMUST-API-USER: your_username",
    "SEMUST-API-PASSWORD: your_password",
]);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($httpCode === 200) {
    $data = json_decode($response, true);
    foreach ($data["organic"] ?? [] as $result) {
        echo $result["rank"] . ". " . $result["title"] . "\n";
        echo "   URL: " . $result["link"] . "\n";
        echo "   Source: " . ($result["source"] ?? "N/A") . "\n";
    }
} else {
    echo "Error [{$httpCode}]: {$response}\n";
}

import requests

response = requests.post(
    "https://data.semust.com/v1/serp",
    headers={
        "SEMUST-API-USER": "your_username",
        "SEMUST-API-PASSWORD": "your_password",
    },
    json={
        "keyword": "best seo tools",
        "format": "json",
        "start_page": 1,
        "end_page": 3,
    },
)

pages = response.json()
for i, page in enumerate(pages, start=1):
    print(f"--- Page {i} ---")
    for result in page.get("organic", []):
        print(f"  {result['rank']}. {result['title']}")
        print(f"     URL: {result['link']}")
        print(f"     Source: {result.get('source', 'N/A')}")

{
  "organic": [
    {
      "rank": 1,
      "global_rank": 1,
      "title": "10 Best SEO Tools in 2025",
      "description": "Discover the top SEO tools for improving your website rankings...",
      "link": "https://example.com/best-seo-tools",
      "display_link": "https://example.com › best-seo-tools",
      "source": "Example.com",
      "extensions": [
        {
          "type": "site_link",
          "text": "Free Tools",
          "link": "https://example.com/free-tools",
          "rank": 1
        }
      ]
    },
    {
      "rank": 2,
      "global_rank": 6,
      "title": "SEO Software & Tools",
      "description": "Get more search traffic with our comprehensive SEO toolkit...",
      "link": "https://www.example.com",
      "display_link": "https://www.example.com",
      "source": "Example"
    }
  ],
  "knowledge": {
    "name": "SEO",
    "subtitle": "Search engine optimization",
    "description": "Search engine optimization is the process of...",
    "description_source": "Wikipedia",
    "facts": [{ "key": "Full name", "value": [{ "text": "Search Engine Optimization" }] }]
  },
  "people_also_ask": [
    {
      "rank": 1,
      "global_rank": 2,
      "question": "What is SEO?",
      "answer_source": "Wikipedia",
      "answers": [{ "rank": 1, "type": "answer", "value": { "text": "SEO is..." } }]
    }
  ],
  "related": [
    { "rank": 1, "global_rank": 10, "text": "SEO tools free", "link": "https://..." }
  ],
  "navigation": [{ "title": "Images", "href": "https://..." }],
  "perspectives": [{ "title": "SEO Tips", "author": "Expert", "source": "YouTube" }],
  "ai_overview": { "references": [...], "texts": [...] },
  "images": [{ "rank": 1, "title": "SEO Diagram", "link": "https://...", "image": "https://..." }],
  "top_ads": [{ "rank": 1, "title": "SEO Tool", "link": "https://...", "referral_link": "https://..." }],
  "bottom_ads": [...]
}

[
  {
    "organic": [
      { "rank": 1, "global_rank": 1, "title": "Result 1", "link": "https://...", "source": "..." }
    ],
    "knowledge": { "name": "...", "description": "..." },
    "people_also_ask": [{ "rank": 1, "question": "...", "answers": [...] }],
    "navigation": [{ "title": "Images", "href": "https://..." }]
  },
  {
    "organic": [
      { "rank": 1, "global_rank": 11, "title": "Page 2 Result", "link": "https://...", "source": "..." }
    ],
    "related": [{ "rank": 1, "text": "Related search", "link": "https://..." }]
  }
]

{
  "error": "Your account does not have enough credits",
  "code": "INSUFFICIENT_CREDITS"
}