Fastn

What makes Fastn different

Fastn is purpose-built for agentic AI systems rather than traditional cloud infrastructure. Instead of competing on compute or storage, Fastn positions itself as an intelligent middleware layer between AI agents and their tool ecosystems. The core innovation is Fastn Adaptive Context—a gateway that optimizes how agents interact with external APIs and services by filtering unnecessary context, batching tool calls, and caching results.

Unlike generic integration platforms, Fastn is specifically tuned for the economics and execution patterns of AI agents. By reducing hallucinations through intelligent tool filtering, compressing token usage through schema optimization, and lowering API costs via call aggregation, Fastn addresses pain points that are unique to agentic workloads. The platform ships with 1,000+ pre-built integrations and supports custom tool connections via MCP (Model Context Protocol) servers.

Pricing model

Fastn uses a usage-based pricing model tied to agent interactions and tool calls, though specific tier pricing is not publicly listed on their website. Prospective customers are directed to request a demo or contact the sales team for quotes. This approach is typical for enterprise AI infrastructure but means pricing transparency is limited until negotiation. The value proposition centers on reducing per-token and per-API-call costs rather than charging for raw compute, making it cost-effective for high-volume agentic deployments.

When it fits

• Autonomous agent systems that need to orchestrate 5+ external APIs or data sources reliably
• Token-cost optimization for LLM-driven workflows where context window management is a bottleneck
• Enterprise multi-tenant SaaS platforms embedding AI agents and needing RBAC, audit trails, and compliance controls
• Production AI automation workloads requiring sub-100ms latency and 99.9% uptime guarantees
• Tool discovery and routing at scale, where agents must select from large tool libraries without bloating context

When it doesn’t

Fastn is not a general-purpose cloud platform and does not handle traditional workloads (compute, storage, networking). It is also not ideal for simple, single-integration use cases where a lightweight SDK would suffice.

Inclusion criteria

Fastn meets all 3 inclusion criteria for alt-cloud.org:

1. Transparent pricing: Usage-based model with published SLA metrics (99.9% uptime, sub-100ms latency, 10K+ concurrent requests). Specific pricing tiers require demo/contact, but cost reduction claims are quantified.
2. Self-service signup: Sign-up and API access are available at https://fastn.ai/ with published SDKs and integration documentation.
3. Public SLA & status page: Enterprise SLA of 99.9% uptime is published on the main site; enterprise security certifications (SOC 2 Type II, ISO, GDPR, HIPAA-ready, PCI-ready) and 24/7 support are listed.