API for Developers

Sell our vanity phone numbers within your site. Search, order, configure, track, buy, list, sell, negotiate. The sky’s the limit.

Get Started for FREE

Let our API do it all!

Maximize your brand’s earning potential and get flexibility, customization, control and powerful engagement resources for your site. Manage tools and features. Utilize reporting integrations to analyze your sales and marketing progress and strategies. Implement scalable solutions tailored to your product, service or site.

Offer customers 71,468,817 available phone numbers
Integrate into web shopping carts
Integrate into apps
Build custom integrations for clients

Expand Opportunities with API Integration

Create your own custom integration with the NumberBarn API:

Search our marketplace of 71,468,817 numbers
Order numbers
List numbers for sale

Respond to inquiries, negotiations, etc.
Manage numbers and features on your NumberBarn account
Reporting

Supercharge Your Possibilities with NumberBarn

The World’s Largest Phone Number Marketplace

With over a decade of experience, count on NumberBarn for marketplace integrity, reliability and industry leadership in the secondary phone number marketplace. We sell millions of phone numbers. And as a NumberBarn B2B Partner, you can too.

75 Million +

Available Phone Numbers

1 Million +

Active Numbers
Supported By NumberBarn

10k +

Numbers Sold Per Month

Branded-TEN

10-Letter Custom Numbers

Hundreds

Of Numbers Sold Per Day

$80-500

Avg Per Number
Most Sell for 100s of Dollars

Vanity, Local & Toll Free Numbers

API Documentation

Get detailed NumberBarn API documentation, including OpenAPI Specification information to begin building your projects.

View API Docs

We use OpenAPI Specification (OAS) format for our fully featured RESTful API.

OpenAPI
REST
JSON

Let’s Get Started

Our team is ready to help you get started as a NumberBarn Business-to-Business Partner today!

Program is FREE to join.
We can help design you a custom integration

Apply Online Today

Have some questions?

Schedule a call with our solutions team to discuss your options with our B2B partnership programs.

Schedule a Call >

Have your own phone numbers you'd like to sell?

Check out NumberBarn's Brokerage program and join the marketplace.