Search for Companies

The Company Search API lets you search MoltSets’ company database by name, domain, industry, employee count, or annual revenue, so you can find and qualify target accounts.

Use query for free text company name search, domain for an exact lookup by website domain, and the filters (industry, employee_range, revenue_range) to narrow your results. Combining query with filters gives the most precise matches. Every result comes back ranked, with a higher _score meaning a stronger match.

Use this endpoint to:

Build prospect lists for account-based marketing
Qualify target accounts before outreach
Enrich CRM records with firmographic data

Fair Use Policy: This API is subject to our Fair Use Policy for Search.

POST

search_companies

Search for Companies

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/search_companies \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "query": "MoltSets",
  "industry": "Information Technology",
  "employee_range": "51-200",
  "limit": 10,
  "offset": 0
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/search_companies"

payload = {
    "query": "MoltSets",
    "industry": "Information Technology",
    "employee_range": "51-200",
    "limit": 10,
    "offset": 0
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    query: 'MoltSets',
    industry: 'Information Technology',
    employee_range: '51-200',
    limit: 10,
    offset: 0
  })
};

fetch('https://api.moltsets.com/api/v1/tools/search_companies', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.moltsets.com/api/v1/tools/search_companies",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'query' => 'MoltSets',
    'industry' => 'Information Technology',
    'employee_range' => '51-200',
    'limit' => 10,
    'offset' => 0
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.moltsets.com/api/v1/tools/search_companies"

	payload := strings.NewReader("{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.moltsets.com/api/v1/tools/search_companies")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/search_companies")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}"

response = http.request(request)
puts response.read_body

{
  "results": {
    "results": [
      {
        "logo": "https://cdn.mixrank.com/md5/0e4e81c8ff584b1ce3e4c3067e8cXXXXX",
        "name": "MoltSets",
        "type": "Privately Held",
        "domain": "moltsets.com",
        "industry": "Information Technology",
        "linkedin_url": "https://linkedin.com/company/moltsets",
        "exact_revenue": 1200000000,
        "revenue_range": "Above $50M",
        "employee_count": 57,
        "employee_range": "51-200",
        "follower_count": 3677,
        "linkedin_company_id": "13223077",
        "_id": "moltsets.com",
        "_score": 15.2394
      },
      {
        "name": "Acme",
        "type": "Privately Held",
        "domain": "acme.com",
        "industry": "Information Technology",
        "linkedin_url": "https://linkedin.com/company/acme",
        "revenue_range": "$10M - $20M",
        "employee_count": 90,
        "employee_range": "51-200",
        "follower_count": 121,
        "linkedin_company_id": "82353383",
        "_id": "acme.com",
        "_score": 13.1942
      }
    ],
    "total": 210
  },
  "status": "ok",
  "metadata": {
    "fair_use": {
      "records_remaining_5h": 179999,
      "records_reset_5h": "2026-07-15T18:53:16Z",
      "records_remaining_1w": 899999,
      "records_reset_1w": "2026-07-22T13:53:16Z"
    },
    "external_tokens_used": 0,
    "external_tokens_remaining": 5000
  }
}

{
  "error": "Bad Request",
  "message": "The server cannot process the request due to a client error (400 Bad Request)."
}

{
  "error": "Unauthorized",
  "message": "Invalid API key."
}

{
  "error": "Not Found",
  "message": "No match was found for the data provided."
}

{
  "error": "Invalid Input",
  "message": "Message describing the nature of the invalid input."
}

{
  "error": "Too Many Requests",
  "message": "Rate limit exceeded. Maximum 100 requests per second."
}

Authorizations

Authorization

string

header

required

Pass your API key as a Bearer token. Keys follow the format ms_XXXXXXXXXXX.

Body

application/json

query

string

Full-text search across company name only. Do not put domain, industry, employee size, or revenue here — use the dedicated filter params for those.

domain

string

Exact domain filter. Omit the protocol (no https://). Prefer this over query when you have a known domain — it's a precise match.

Example:

"moltsets.com"

industry

enum<string>

Exact industry filter. Map the request to one of the supported values.

Available options:

Professional and Business Services,

Information Technology,

Manufacturing,

Retail,

Health and Pharmaceuticals,

Creative Arts and Entertainment,

Construction,

Marketing & Advertising,

Finance and Banking,

Tourism and Hospitality,

Non-Profit and Social Services,

Food and Beverage,

Real Estate,

Education,

Transportation and Logistics,

Media and Publishing,

Energy,

Automotive,

Government and Public Administration,

Telecommunications,

Agriculture,

Utilities,

Corporate Services,

Insurance,

Banks,

Computer Software,

Pharmaceuticals and Biotechnology,

Aerospace and Defense,

Electronics,

Mining and Metals

employee_range

enum<string>

Exact employee count range filter. Prefer the numeric ranges when a size is given.

Available options:

1-10,

11-20,

21-50,

51-200,

201-500,

501-1000,

1001-5000,

5001+,

Small,

Mid-Market,

Enterprise,

Unknown

revenue_range

enum<string>

Exact annual revenue range filter.

Available options:

Below $500k,

$500k - $1M,

$1M - $5M,

$5M - $10M,

$10M - $20M,

$20M - $50M,

Above $50M,

$50M - $100M,

$100M - $250M,

$250M - $500M,

$500M - $1B,

$1B - $2.5B,

$2.5B - $5B,

Over $5B

limit

integer

default:10

Number of results to return.

Required range: 1 <= x <= 25

offset

integer

default:0

Number of results to skip for pagination. Use with limit to page through results.

Response

Success

Search for LinkedIn ProfileThe LinkedIn Profile Search API finds a person or company's LinkedIn profile from a name and company domain. Pass a full name (MoltSets splits it into first and last name for you) or send `first_name` and `last_name` separately, then add the company as a domain, for example `acme.com`. URLs are normalised automatically, so there's no need to clean up your inputs first. Run a free count first with `count_only: true` to see how many matches exist, then tighten or loosen your search before spending tokens. Full results are only charged when a match is actually found, so an empty search costs nothing. **Use this endpoint to:** - Confirm you have the right LinkedIn profile before enriching a contact - Check match volume before running a bulk search - Attach LinkedIn URLs to contact records that are missing one **Fair Use Policy:** This API is subject to our <a href="https://moltsets.com/fair-use-policy-search/" target="_blank" rel="noopener">Fair Use Policy for Search</a>.

Search for Companies

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/search_companies \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "query": "MoltSets",
  "industry": "Information Technology",
  "employee_range": "51-200",
  "limit": 10,
  "offset": 0
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/search_companies"

payload = {
    "query": "MoltSets",
    "industry": "Information Technology",
    "employee_range": "51-200",
    "limit": 10,
    "offset": 0
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    query: 'MoltSets',
    industry: 'Information Technology',
    employee_range: '51-200',
    limit: 10,
    offset: 0
  })
};

fetch('https://api.moltsets.com/api/v1/tools/search_companies', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.moltsets.com/api/v1/tools/search_companies",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'query' => 'MoltSets',
    'industry' => 'Information Technology',
    'employee_range' => '51-200',
    'limit' => 10,
    'offset' => 0
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.moltsets.com/api/v1/tools/search_companies"

	payload := strings.NewReader("{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.moltsets.com/api/v1/tools/search_companies")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/search_companies")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"query\": \"MoltSets\",\n  \"industry\": \"Information Technology\",\n  \"employee_range\": \"51-200\",\n  \"limit\": 10,\n  \"offset\": 0\n}"

response = http.request(request)
puts response.read_body

{
  "results": {
    "results": [
      {
        "logo": "https://cdn.mixrank.com/md5/0e4e81c8ff584b1ce3e4c3067e8cXXXXX",
        "name": "MoltSets",
        "type": "Privately Held",
        "domain": "moltsets.com",
        "industry": "Information Technology",
        "linkedin_url": "https://linkedin.com/company/moltsets",
        "exact_revenue": 1200000000,
        "revenue_range": "Above $50M",
        "employee_count": 57,
        "employee_range": "51-200",
        "follower_count": 3677,
        "linkedin_company_id": "13223077",
        "_id": "moltsets.com",
        "_score": 15.2394
      },
      {
        "name": "Acme",
        "type": "Privately Held",
        "domain": "acme.com",
        "industry": "Information Technology",
        "linkedin_url": "https://linkedin.com/company/acme",
        "revenue_range": "$10M - $20M",
        "employee_count": 90,
        "employee_range": "51-200",
        "follower_count": 121,
        "linkedin_company_id": "82353383",
        "_id": "acme.com",
        "_score": 13.1942
      }
    ],
    "total": 210
  },
  "status": "ok",
  "metadata": {
    "fair_use": {
      "records_remaining_5h": 179999,
      "records_reset_5h": "2026-07-15T18:53:16Z",
      "records_remaining_1w": 899999,
      "records_reset_1w": "2026-07-22T13:53:16Z"
    },
    "external_tokens_used": 0,
    "external_tokens_remaining": 5000
  }
}

{
  "error": "Bad Request",
  "message": "The server cannot process the request due to a client error (400 Bad Request)."
}

{
  "error": "Unauthorized",
  "message": "Invalid API key."
}

{
  "error": "Not Found",
  "message": "No match was found for the data provided."
}

{
  "error": "Invalid Input",
  "message": "Message describing the nature of the invalid input."
}

{
  "error": "Too Many Requests",
  "message": "Rate limit exceeded. Maximum 100 requests per second."
}

Search

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Account

Search for Companies

Authorizations

Body

Response