Stack AI

Stack AI is a no-code platform for building, deploying, and managing AI agents and LLM-powered applications, aimed at enterprises that want internal copilots, customer-service bots, and back-office automations without writing code. Agents can be shipped as standalone apps or exposed as APIs, with connectors to common data sources and business systems. In 2026 it's consistently ranked among the top enterprise agent builders, with a generous free tier and SOC2/compliance-oriented paid plans.

Key features

• No-code builder for AI agents, copilots, and LLM apps
• Deploy agents as hosted apps or callable APIs
• Connectors to enterprise data sources and business tools
• RAG/knowledge-base support for grounded answers
• Enterprise compliance (SOC2) and access controls on paid tiers

Pros & cons

Stack AI pricing

Stack AI uses a freemium pricing model, with paid plans from Free (up to ~500 runs/mo); paid plans from ~$199/mo. A free tier lets you test it before committing.

Who should use Stack AI?

Stack AI is best suited for Enterprises and mid-market teams deploying no-code AI agents and internal copilots with compliance needs. It earns its place for fast no-code path to production-grade enterprise agents — though it's worth weighing the trade-off that paid plans jump to enterprise-level pricing quickly.

Comparing options? See our best ai agents & automation tools guide, or browse every ai agents & automation tool tracked on Benchquill.

Stack AI FAQ

Is Stack AI free?

Stack AI is freemium. Pricing starts at Free (up to ~500 runs/mo); paid plans from ~$199/mo.

What is Stack AI best for?

Stack AI is best for Enterprises and mid-market teams deploying no-code AI agents and internal copilots with compliance needs.