Get Ad Audience

Business Email to SHA256

The Business Email to SHA256 API converts a business email address into SHA256-hashed personal email addresses, for privacy-safe identity resolution and paid advertising audience matching.

The hashes it returns can be uploaded directly to Meta, Google, LinkedIn, TikTok, and other ad platforms that support customer match or custom audience workflows. Use this to retarget known contacts across their personal devices without exposing raw personal email data.

Use this endpoint to:

Build customer match audiences for Meta, Google, LinkedIn, or TikTok
Retarget contacts on their personal devices without exposing raw email addresses
Bridge business contacts to privacy-safe advertising identifiers

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

business_email_to_sha256

Business Email to SHA256

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/business_email_to_sha256 \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "john.smith@example.com"
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/business_email_to_sha256"

payload = { "email": "john.smith@example.com" }
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({email: 'john.smith@example.com'})
};

fetch('https://api.moltsets.com/api/v1/tools/business_email_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/business_email_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([
    'email' => 'john.smith@example.com'
  ]),
  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/business_email_to_sha256"

	payload := strings.NewReader("{\n  \"email\": \"john.smith@example.com\"\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/business_email_to_sha256")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"email\": \"john.smith@example.com\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/business_email_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  \"email\": \"john.smith@example.com\"\n}"

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

{
  "results": {
    "personal_email_SHA256": [
      "e187e84b06e1e6577bcebe42d3905434ddc89d2d5abaab8e85691882310XXXXX"
    ]
  },
  "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

string

Business email address.

Response

Success

Business Email to SHA256

curl --request POST \
  --url https://api.moltsets.com/api/v1/tools/business_email_to_sha256 \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "john.smith@example.com"
}
'

import requests

url = "https://api.moltsets.com/api/v1/tools/business_email_to_sha256"

payload = { "email": "john.smith@example.com" }
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({email: 'john.smith@example.com'})
};

fetch('https://api.moltsets.com/api/v1/tools/business_email_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/business_email_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([
    'email' => 'john.smith@example.com'
  ]),
  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/business_email_to_sha256"

	payload := strings.NewReader("{\n  \"email\": \"john.smith@example.com\"\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/business_email_to_sha256")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"email\": \"john.smith@example.com\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.moltsets.com/api/v1/tools/business_email_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  \"email\": \"john.smith@example.com\"\n}"

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

{
  "results": {
    "personal_email_SHA256": [
      "e187e84b06e1e6577bcebe42d3905434ddc89d2d5abaab8e85691882310XXXXX"
    ]
  },
  "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

Business Email to SHA256

Authorizations

Body

Response