fastn, Inc.

fastn, Inc. was founded in 2023 and builds an embedded integration platform for SaaS product teams. The platform is designed to turn integrations into configurable, customer-driven experiences rather than bespoke engineering projects. Two products anchor the offering: the Embedded Integration Platform, which reports 99.98% uptime, and Fastn UCL, a governed tool gateway that gives AI agents scoped, audited access to hundreds of enterprise systems while holding response times below a millisecond and maintaining SOC 2 Type II compliance.

The engineering work spans embedded integration, API integration, iPaaS, AI agents and enterprise system connectivity, with an emphasis on low-latency and governed infrastructure. Engineers ship to production daily. The company has raised $2.6m and serves customers across SaaS, enterprise software and AI infrastructure.

fastn operates remote-first with a bias toward asynchronous communication and a stated preference for writing over meetings; documentation is treated as first-class. The company describes a tight-knit team in which each member has ownership over their domain, and a design stance of avoiding black boxes and rigid schemas that break on edge cases. It is based in Austin, Texas, and hires globally on a remote-first basis.

The company's stated aim is that every SaaS business should be able to say yes to any integration request without spending engineering sprints on it. fastn describes itself as growing intentionally.