CUFinder API Documentation
APIs

Company Email Finder API

Business email addresses unlock direct communication channels that drive B2B outreach success. The Company Email Finder API returns up to five verified company emails (info@, contact@, support@) from company names or domains with 97% confidence scores. Built for developers automating lead generation and contact enrichment, this RESTful endpoint delivers role-based email addresses that power CRM completion, outreach automation, and customer support workflows across your sales stack.

CUFinder Official SDKs

POST

https://api.cufinder.io/v2/dte

Required Attributes

  • x-api-key

    string

    Your API key.

  • company_website

    string

    Company name or Company domain or Company LinkedIn URL

Credit usage

1 for founded records

/v2/dte

Request
curl --location 'https://api.cufinder.io/v2/dte' \
     --header 'Content-Type: application/x-www-form-urlencoded' \
     --header 'x-api-key: api_key' \
     --data-urlencode 'company_website=cufinder.io'
Response
{
    "status": 1,
    "data": {
        "confidence_level": 97,
        "query": "cufinder.io",
        "emails": [
            "[email protected]",
            "[email protected]",
            "[email protected]"
        ],
        "credit_count": 9981
    }
}

Status Codes

  • 200

    indicates a successful response.

  • 400

    indicates a not enough credits.

  • 401

    indicates an invalid API key.

  • 404

    indicates a not found results (Our algorithm can't find a data for your query).

  • 422

    indicates an error in sending data.

  • 500

    indicates a server error — you won't be seeing these

Company Email Finder API typescript SDK

Request
import { Cufinder } from '@cufinder/cufinder-ts';

// Initialize the client
const client = new Cufinder('your-api-key-here');

// Initialize with more options
const client = new Cufinder('your-api-key-here', { timeout: 60000 });

const result = await client.dte('cufinder.io');
console.log(result);

Company Email Finder API python SDK

Request
from cufinder import Cufinder

# Initialize the client
client = Cufinder('your-api-key-here')

# Initialize with more options
client = Cufinder('your-api-key-here', timeout=60)

result = client.dte('cufinder.io')
print(result)

Company Email Finder API go SDK

Request
package main

import (
    "fmt"
    "log"
    
    "github.com/cufinder/cufinder-go"
)

func main() {
    // Initialize the client
    sdk := cufinder.NewSDK("your-api-key-here")
    
    // Initialize with more options
    sdk := cufinder.NewSDKWithConfig(cufinder.ClientConfig{
        APIKey:     "your-api-key-here",
        BaseURL:    "https://api.cufinder.io/v2",
        Timeout:    60 * time.Second,
        MaxRetries: 3,
    })
}
result, err := sdk.DTE("cufinder.io")
if err != nil {
  log.Fatal(err)
}
fmt.Println(result)

Company Email Finder API ruby SDK

Request
require 'cufinder_ruby'

# Initialize the client
client = Cufinder::Client.new(api_key: 'your-api-key-here')

# Initialize with more options
client = Cufinder::Client.new(
  api_key: 'your-api-key-here',
  timeout: 60,
  max_retries: 3
)

result = client.dte(company_website: 'cufinder.io')
puts result

Company Email Finder API rust SDK

Request
use cufinder_rust::CufinderSDK;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Initialize the client
    let sdk = CufinderSDK::new("your-api-key-here".to_string())?;
    
    // Initialize with more options
    let sdk = CufinderSDK::with_config(ClientConfig {
        api_key: "your-api-key-here".to_string(),
        base_url: "https://api.cufinder.io/v2".to_string(),
        timeout: Duration::from_secs(60),
        max_retries: 3,
    })?;
    
    Ok(())
}

let result = sdk.dte("cufinder.io").await?;
println!("{:?}", result);

Read More

Domain to Company Name

Official API docs for Domain to Company Name endpoint. Convert website URLs to verified company names with 97% accuracy. RESTful integration guide.

Company Phone Finder

Official API docs for Company Phone Finder endpoint. Get up to 2 verified business phone numbers with 93% accuracy. RESTful integration guide.