Stack AI Pricing
stack-ai.com · Chatbots · refreshed 2026-05-06www.stack-ai.com/pricing
Offers Free-forever and Custom plan.
$0
Contact sales
Plans & what each tier includes
Synthesized from Stack AI's public pricing page on 2026-05-06. Tier names normalized to a starter / team / business / enterprise pattern; the actual Stack AI pricing page is the source of truth for in-tier features.Free
$0
foreverFree tier with no credit card required
Access to Stack AI's chatbots surface
Limited usage
Documentation available on signup
Enterprise
Contact sales
customCustom pricing negotiated with the Stack AI sales team
Dedicated account manager and SLA commitments
Volume discounts on per-unit costs
Procurement-friendly: invoicing, NDAs, security questionnaires
What Stack AI charges
Stack AI operates in the chatbots space. The published pricing page lists 2 tiers, including a free tier. The pricing page positions plans as: "Offers Free-forever and Custom plan.".
For the deeper analysis — score, simulation, pros & cons for AI agents, and the one-line fix that would lift this listing into the Verified band — see the agent-readiness scorecard.Stack AI pricing FAQ
Stack AI offers a free tier. Paid pricing is sales-led — the live pricing page does not list a self-serve paid plan as of 2026-05-06.
Yes — Stack AI publishes a free tier. This makes it possible to evaluate Stack AI without committing budget.
Stack AI's pricing page positions itself as: "Offers Free-forever and Custom plan.". For the strict definition of agent-buyable PPU — a per-task purchase that an AI agent can complete without an annual commitment — see the agent-readiness scorecard.
Not currently. Stack AI's public pricing page routes all advertised tiers to a sales contact form.
xpay scored Stack AI 53 / 100 on its Agent-Ready SaaS Index, which places it in the Not Agent-Ready Yet band. Stack AI publishes a pricing page with 2 discoverable plan tier(s). Listed CTAs route to a sales conversation rather than self-serve checkout. A public API is advertised on the listing — Tier 2 will confirm docs are open. A free or freemium tier appears to be offered. Tier 1 scorecard from public listing signals; pricing-page verification is a Tier 2 task. For the full 6-step purchase simulation and the one-line fix that would lift this listing into the next band, see the linked scorecard.
In the Chatbots category, xpay's Agent-Ready Index lists multiple alternatives ranked by their ability to support AI agent purchase. Visit the agent-readiness scorecard for Stack AI to compare with 3 nearest peers, or browse the full Chatbots category from the index.
Can an AI agent buy from Stack AI?
53
/ 100 in xpay's Agent-Ready SaaS IndexStack AI publishes a pricing page with 2 discoverable plan tier(s). Listed CTAs route to a sales conversation rather than self-serve checkout. A public API is advertised on the listing — Tier 2 will c…
See the full scorecardIncludes the 6-step agent purchase simulation, score breakdown across 7 dimensions, and the one-line fix that would lift Stack AI into the Agent-Ready Verified band.At a glance
Available
Sales-led
No
2
Compare nearby
Stack AI pricing summary derived from a live read of https://www.stack-ai.com/pricing on 2026-05-06. For the agent-readiness assessment — including the 6-step purchase simulation and a per-dimension scorecard — see xpay's Agent-Ready SaaS Index entry for Stack AI.