Frigg by Left Hook

The Frigg Integration Framework

Accelerating Integration the Open Source Way

Last Updated: October 2022

Frigg is Flying Free: Read our Announcement

Left Hook built the Frigg Integration Framework to help solve hard integration development challenges faced by SaaS leaders.

Are you a product/technical leader looking to understand Frigg as a software tool? Check out Frigg's Documentation site.

If you are a non-technical partnership leader, please read our Frigg Overview: Key Concepts & Considerations white paper (PDF).

And if you need the TL;DR version, here's a summary:

What is Frigg?

Frigg is an open software framework built by Left Hook to accelerate development of direct/native integrations with your tech partners.

Frigg Puts the "Tech" in "Tech Partnerships"

Frigg accelerates development of high-value direct/native integrations. From simple one-way automations to richly embedded “UX surfaces,” Frigg enables the right use cases and features to make your end customers delighted and your tech partnerships flourish.

Frigg-powered integrations are configurable from within your own product's UI and/or integrations page and ready for listing in your partner’s directory. Frigg already powers several integrations listed in marketplaces like the Hubspot’s App Marketplace, Salesforce’s AppExchange, and more.

A Library of Ready-to-Use Connectors

Frigg comes with a growing library of "API Modules," off-the-shelf connectors that represent and wrap another product's API to the framework.

Our existing library includes Crossbeam, Salesforce CRM, Stripe, HubSpot, QBO,, Dropbox, and 25+ more. As Frigg  gains adoption, our API Module library will expand and improve organically, opening up new partnership opportunities.

Not SaaS, and Definitely Not IPaaS

Frigg is not a hosted service, nor is it an embedded white-label iPaaS like or Workato. Frigg is an open, customizable, and free framework, forever “owned” inside your company’s code base. You pay your chosen cloud infrastructure provider (AWS, GCP, Azure, etc.) directly with no markup. Your company remains in full control of integration packaging and pricing, and pays the market rate for cloud computing capacity.

Open, Developable, and Secure

A qualified Node.js developer can improve or build a new Frigg-powered integration with little to no help from Left Hook. The code is available on NPM and Github under a standard MIT license.

Tech Stack(ed)

Frigg is written in Node.js and relies on the framework, but is otherwise highly adaptable to your organization’s stack and CI/CD processes. Optional front end components are written in React.JS, but Frigg's API-driven architecture allows it to be used by any front-end system.

Left Hook Services & Support

Left Hook provides professional services to plan an implementation, build or improve API Modules, configure and deploy the framework on your chosen cloud provider, or to build a UI to help your end-customers authenticate and manage their integration instance. To make Frigg work for your SaaS, we partner with your product team to both guide strategic choices or to actually perform a Frigg implementation. And we offer ongoing support and maintenance.