Fastn

Fastn is an infrastructure platform that lets software companies embed customer-facing integrations directly inside their own products. Rather than maintaining a growing backlog of connectors and engineering tickets, teams can use fastn's AI agents to handle the full integration lifecycle: building, testing, and keeping integrations running as upstream APIs change.

At its core, fastn provides a unified gateway, built on the Model Context Protocol, that connects AI agents and applications to tools such as Slack, Notion, Gmail, and custom internal APIs through a single endpoint. It manages authentication, including OAuth flows, and supports orchestration of multi-step workflows, so developers can focus on product logic instead of per-connector plumbing.

The platform is designed to scale from early build to enterprise deployment. Higher tiers add reactive and proactive agent maintenance that adapts to breaking changes before they cause failures, sandbox environments, monitoring dashboards with alerting, and enterprise-grade security including SOC 2 Type II, role-based access, SSO/SAML, audit log export, and configurable data residency. Pricing is based on connected customer accounts rather than the number of connectors, with volume discounts at scale and white-label embedding available for enterprise customers.