Home

Enrichment API

Verify API

MailStack API

CustomerBASE API

Billing API

CustomerOS Docs

Getting Started

Website

Support

Retrieves a list of all mailboxes associated with a specified domain

Get all mailboxes

Supercharge your GTM tooling in under five minutes

Introduction

Start building awesome documentation in under 5 minutes

API Descriptions

Notify your app when certain events occur

Webhooks

Enriches organization information using either domain or LinkedIn URL

Enrich organization information

Enriches person information using LinkedIn URL, email, and other optional details

Enrich person information

Retrieves the results of an asynchronous person enrichment operation

Retrieve enrichment results

Performs comprehensive validation of a single email address

Verify single email address

Initiates bulk verification process for emails from CSV file

Upload emails for bulk verification

Retrieves results or status of bulk verification job

Get bulk verification results

Downloads CSV file containing detailed verification results

Download bulk verification results

Retrieves comprehensive information about an IP address including threats, geolocation, and network details

Get IP intelligence data

Retrieves all active domains for the authenticated tenant

List active domains

Registers and configures a new domain for mail services, including DNS setup

Register new domain

Sets up DNS records and mail services for an existing domain

Configure domain DNS

Retrieves all mailboxes configured for the specified domain

List mailboxes

Creates a new mailbox for the specified domain with optional forwarding and webmail access

Create mailbox

Creates a contact from either JSON or CSV upload

Create a new contact

Creates multiple contacts from JSON input

Create multiple contacts

Creates multiple contacts from CSV file upload

Import contacts from CSV

Creates an organization if it doesn't exist based on website, custom ID, or LinkedIn URL. Returns existing organization if found.

Create a new organization

Retrieves detailed organization information by ID or COS ID

Get organization details

Sets or updates the primary external system identifier for an organization

Set primary external system ID

Retrieves all non-dry-run invoices for a specific organization, sorted by due date descending

Domains

Mailboxes

Get all mailboxes