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API documentation

Developer website

Incorrect or missing information? Help us

What is the API? is a lead generation platform that proposes several tools to help sales doing cold outreach. The API provides a subset of features, including email verifier, email finder, profile retriever, etc.

How to use the API?

// npm install @bearer/node
.auth('AUTH_ID') // Check the code example below on how to generate access tokens
.post('/get-domain-emails-count', { body: { domain: ""}, headers: { Content-Type: "application/json"}})
.then(({ data }) => console.log(data))
.catch(e => console.log(e))
<script src=""></script>
<button class="btn btn-primary" onclick="myConnectButton()">
Connect to
const bearerClient = bearer('YOUR_BEARER_PUB_KEY')
function myConnectButton() {
.then(({ authId }) => {
// Use this authId like bearer.auth(authId).get(..
console.log('AUTH_ID for this user', authId)

Start using the API

Bearer provides a universal API client to call any endpoints. It takes care of API authentication, credentials management, and monitoring out-of-the-box.

Available in Node.js, Ruby, Python, and PHP

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Start integrating the API for free!

Universal API client

Query the API and hundreds more APIs using a single API client.

Identity Management

From API credentials to OAuth dance, token and refresh token, Bearer manages it all.

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