The Leading File Transfer API

MASV’s file transfer API is designed to make secure large file transfer fast, flexible and easy for every development team.

Get 100 GB in free transfer credits with your developer account.

File Transfer API

Trusted by 78,301 video professionals around the world

MASV Media and Entertainment Customers
MASV media and entertainment customers
Disney Streaming
Curiosity Stream

What can I do with the MASV File Transfer API?

send files

Easily send files to anyone, anywhere

Leverage the MASV API to send and receive files to your team, clients, collaborators—literally anyone.

MASV is powered by 160+ worldwide servers to ensure your files never have to travel far before hitting a high-speed network. With the File Transfer API, you can easily automate sending and receiving files without worrying about size limits or subscription constraints.

cloud storage

Automatic file backup and storage

When combined with your MASV Portal, you can automatically backup and archive your digital media files to your cloud storage solution of choice. MASV integrates with Amazon S3, Google Cloud Storage, Backblaze, Wasabi and more.


The File Transfer API an excellent FTP alternative. It’s faster, easier to deploy, and more reliable than FTP. Integration is straightforward, and can be validated in under 20 minutes. It’s a simple solution that can handle even the most complex workflows. 

Jonathan Baldock

“I prefer using the MASV API over FTP because it is much easier to integrate and it gives me the reliability and speed that MASV is already known for without all the set up and management effort.”

Reliable file transfer

More reliable than FTP

Transfer reliability and speed can make or break your project. The MASV API ensures you won’t have to worry about panicked 5pm messages from your production team wondering where their files are.

file transfers without limits

Scales automatically

The MASV File Transfer API was built to scale along with your requirements. That means you won’t have to worry about limits on files, team members, recipients, or anything else.

lightning fast file transfer

Peace of mind for production teams

MASV minimizes the time you spend on routine tasks so you can focus on more fun and productive things. You’ll get peace of mind knowing your files will be automatically delivered.

Pay as you go file transfer

Flexible, usage-based pricing

Need to send hundreds of TBs one month and just a few the next? No worries, our API offers flexible usage-based pricing to ensure you only ever pay for what you use.

Designed for Modern Media Workflows

Connect your MASV Portals to an external cloud storage provider by way of Cloud Connect. The connection details are entered once and can be reused across multiple portals. Each portal can have one or more connections attached and as new uploads are received they will be transferred automatically to each external cloud storage account.

MASV Cloud Connections

Get Started in Just a Few Clicks

Step 1

Create your free MASV account.

Sign up for MASV

Step 2

Authenticate with the API. 

Setting up the MASV API

Step 3

Create your first API key. 

MASV Transfer API

Try the MASV File Transfer API now and get 100GB in free transfer credits

Use MASV in a Server Environment with the MASV Transfer Agent

While the MASV API gives developers access to MASV’s powerful transfer platform, the MASV Transfer Agent is designed for power users who want to automate a high volume of transfers and workflows.

Users can interact with the Transfer Agent via a simplified REST API to carry out tasks like uploading and downloading packages. The transfer agent manages the underlying file system, carrying out transfers at maximum speed with the reliability that our users love and trust. 

Visit the developer documentation to get started with the Transfer Agent.

Get the fastest file upload and download speeds

When it comes to transferring 100GB+ files, speed is crucial. MASV rides on a dedicated global accelerated network. With over 150 servers worldwide, we achieve maximum transfer speeds in most locations across the world without the need for any software or firewall changes.

20GB file sent over 1 gbps connection from Ottawa, Canada.

file transfer speed comparison

Hollywood-grade security

The only TPN-assessed file transfer service for truly massive files.
MASV has completed a rigorous third-party evaluation to ensure compliance with the Trusted Partner Network (TPN), owned and managed by the Motion Picture Association (MPA) a leader in third-party entertainment industry assessments.

Learn more about MASV’s commitment to content security

MASV secure file transfer
Nick Long, Salon

“MASV is like the Stripe of large file transfer – it just gives you the ability to do stuff yourself. It’s not locked down. It’s got an API. You can customize everything.”

— Nick Long, Managing Director, Salon

Salon logo

Start Using the File Transfer API

Get 100 GB in free transfer credits with your developer account.

No credit card required