Fastn
Eliminate the need for building or maintaining integrations.
At a glance
3.8 out of 5
Scored by Alex after real useOur verdict
Fastn streamlines context and reduces token costs but charges extra for multiple MCP endpoints and tenant support. It’s not ideal if you require extensive customization beyond one integration point.
✓What it does well
✕Where it falls short
Key features
Questions about Fastn
What does Fastn do?
Fastn aims to eliminate the need to build or maintain integrations for SaaS companies and AI agent builders. It streamlines context for accurate agent execution, filters tools based on the intention of an agent's task to reduce hallucinations and token use, and caches results to cut latency and compute waste.
How much does Fastn cost?
Fastn has no free tier. The Basic plan costs $59 per month with access to 1000+ tools and enterprise security features. The Pro plan costs $149 per month and covers up to three MCP endpoints with support for multiple tenants.
Is Fastn secure enough for enterprise use?
The vendor lists Fastn as SOC 2 Type II certified, ISO-certified and GDPR compliant, as well as HIPAA- and PCI-ready. Enterprise support includes a dedicated technical account manager and 24/7 support. Its performance claims cite sub-100ms latency for up to 10K+ concurrent requests.
What are the downsides of Fastn?
The reviewer notes that Fastn charges extra for connecting to multiple MCP endpoints and for supporting multiple tenants in an app. It also lacks extensive customization beyond one integration point, so it is not ideal for teams that need heavy customization.
Who is Fastn best for?
Toolio lists SaaS companies and AI agent builders as the best fit for Fastn. On-premise enterprises with custom integrations should look elsewhere. Fastn holds a Toolio score of 3.8 out of 5, given by Alex after real use on 4 Oct 2026.