Get Ad Audience

LinkedIn to SHA256

The LinkedIn to SHA256 API retrieves all known SHA256 and MD5 hashed emails for a LinkedIn profile, covering both business and personal addresses.

It returns separate arrays for business and personal hashes in both formats, giving you the broadest possible coverage for audience matching across ad platforms. Use this when you need to build the widest match key set for a LinkedIn-identified contact, for example to maximise match rates when uploading customer lists to Meta, Google, or LinkedIn Ads.

Use this endpoint to:

Maximise match rates on ad platform customer lists
Build a complete hashed identity set for one contact
Bridge LinkedIn-sourced contacts into advertising audiences

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

Outcomes: A lookup that finds nothing is not an error. It returns HTTP 200 with status: "not_found", empty or null results, and the usual metadata — and costs no tokens, though it still counts as one request against your Fair Use requests limit. Read status, not the HTTP code, to tell a hit from a miss. The API’s only 404 is an unknown or retired tool name.

POST

linkedin_to_sha256

LinkedIn to SHA256

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/linkedin_to_sha256 \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "linkedin_url": "https://linkedin.com/in/retentionadam"
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/linkedin_to_sha256"

payload = { "linkedin_url": "https://linkedin.com/in/retentionadam" }
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({linkedin_url: 'https://linkedin.com/in/retentionadam'})
};

fetch('https://api.moltsets.com/api/v1/tools/linkedin_to_sha256', 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/linkedin_to_sha256",
  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([
    'linkedin_url' => 'https://linkedin.com/in/retentionadam'
  ]),
  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/linkedin_to_sha256"

	payload := strings.NewReader("{\n  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\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/linkedin_to_sha256")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/linkedin_to_sha256")

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  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\n}"

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

{
  "results": {
    "linkedin_slug": "john-smith-123",
    "business_SHA256_array": [
      "f101da855ed67dc34c9729f04df8aeefXXXXX"
    ],
    "business_md5_array": [
      "900b89c0e5ece81f7fb0a72ef3dXXXXX"
    ],
    "personal_SHA256_array": [
      "266f422db074460bb5bf41984c3aXXXXX"
    ],
    "personal_md5_array": [
      "0c86fde3392c84d6514de378dc1XXXXX"
    ]
  },
  "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"
    }
  }
}

Authorizations

Authorization

string

header

required

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

Body

application/json

linkedin_url

string

required

Example:

"https://linkedin.com/in/retentionadam"

Response

Success

LinkedIn to SHA256

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/linkedin_to_sha256 \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "linkedin_url": "https://linkedin.com/in/retentionadam"
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/linkedin_to_sha256"

payload = { "linkedin_url": "https://linkedin.com/in/retentionadam" }
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({linkedin_url: 'https://linkedin.com/in/retentionadam'})
};

fetch('https://api.moltsets.com/api/v1/tools/linkedin_to_sha256', 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/linkedin_to_sha256",
  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([
    'linkedin_url' => 'https://linkedin.com/in/retentionadam'
  ]),
  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/linkedin_to_sha256"

	payload := strings.NewReader("{\n  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\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/linkedin_to_sha256")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/linkedin_to_sha256")

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  \"linkedin_url\": \"https://linkedin.com/in/retentionadam\"\n}"

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

{
  "results": {
    "linkedin_slug": "john-smith-123",
    "business_SHA256_array": [
      "f101da855ed67dc34c9729f04df8aeefXXXXX"
    ],
    "business_md5_array": [
      "900b89c0e5ece81f7fb0a72ef3dXXXXX"
    ],
    "personal_SHA256_array": [
      "266f422db074460bb5bf41984c3aXXXXX"
    ],
    "personal_md5_array": [
      "0c86fde3392c84d6514de378dc1XXXXX"
    ]
  },
  "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"
    }
  }
}

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Account

LinkedIn to SHA256

Authorizations

Body

Response