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Plain Pricing
plain.com · Customer Success · refreshed 2026-05-06Plain pricing starts at $199/user/mo, billed annually for the Foundation plan. 3 tiers total including a free tier. No monthly-only billing option.
Page fetched 2026-05-09 · plain.com · Annual-only tier subscription
plain.com/pricing
Plain pricing
Foundation
$199/user/mo
billed annuallyHorizon
$299/user/mo
billed annuallyFrontier
Contact sales
See your real cost on each plan
Adjust seats to compare Plain plans side-by-side and check the annual break-even.
How many seats do you need?
Foundation
$199/mo per seat · $199/mo billed annually$995/mo
Horizon
$299/mo per seat · $299/mo billed annually$1,495/mo
Plain pricing FAQ
Plain pricing starts at $199/mo for the Foundation plan; free trial available; paid plans up to $299/mo. Billed annually.
Plain's cheapest business-usable plan is Foundation at $199/mo. Lowest paid tier that includes support and AI credits.
Yes — Plain offers free starter access on signup. 7 day free trial, no credit card required.
Yes — Plain's purchase motion is self-serve. No demo is required.
xpay scored Plain as agent-ready: every advertised plan is self-serve with public pricing. Plain publishes a pricing page with 4 discoverable plan tier(s). No per-unit price was found on the page; an agent has no direct way to estimate the cost of a single task. Self-serve signup exists alongside a sales-led / custom tier. Public API documentation is reachable without an auth wall. A free or freemium tier is offered. For the full purchase simulation see the linked Agent-Ready Index scorecard.
In the Customer Success category, xpay's Agent-Ready Index lists alternatives ranked by their ability to support AI agent purchase. Visit the agent-readiness scorecard for Plain to compare with 3 nearest peers.
Top Plain alternatives by pricing transparency
Can an AI agent buy from Plain?
49
/ 100 in xpay's Agent-Ready SaaS IndexPlain scores 49/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; API access is partial; a free entry path exists.
See the full scorecardIncludes the 6-step agent purchase simulation, score breakdown across 7 dimensions, and the one-line fix that would lift Plain into the Agent-Ready Verified band.At a glance
Credits: 7 day free trial, no credit card required
Annual only
$199/user/mo (billed annually)
2 tiers
3
Annual-only tier subscription
Most agent-ready
Plain pricing summary derived from a live read of https://plain.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 Plain.
Explore SaaS pricing across categories
25,480+ SaaS scored on agent-buyability — browse by readiness band, category, or jump straight to a pay-per-run tool on xpay.tools.
