Stackby
Stackby scores 49/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a free entry path exists.
Stackby pricing
Free
Free
Economy
$4.2/user/mo
Business
$8.3/user/mo
Pro
$12.5/user/mo
Enterprise
Contact sales
How Stackby scores on the agent-ready dimensions
Public pricing visibility
15 / 15
Self-serve checkout
15 / 15
Public API + docs
0 / 20
Usage-based / metered pricing
0 / 20
Free entry path
7 / 7
No sales call required
7 / 7
Card / wallet / x402 payment
5 / 6
Machine-readable bonus (MCP / OpenAPI)
0 / 10
Total
49 / 100
What it actually costs at typical scale
3 users on Economy (monthly billing)
$12.6/mo
3 users on Pro (annual billing)
$37.42/mo
Can an autonomous agent transact here?
Can create account
Can enter payment method
Can upgrade plan
Can buy more usage
Can cancel online
Payment methods
Human approval recommended
Pricing transparency
full
Purchase motion
self_serve
Demo required
Quote required
Annual commit required
Unknown
Auto-renewal mentioned
Cancellation policy visible
Refund policy visible
Invoice payment available
Purchase orders supported
MSA required
DPA available
Security review required
Trial
Available, no card
Annual discount
70% off
Startup credits
Startup plan application available
Trust & compliance
SSO / SAML
RBAC
Audit logs
Unknown
Positioning & ecosystem
“A plan for teams of all sizes.”
Buyer persona
Six-step check: can an agent actually buy from Stackby?
Discover price
Select a plan
Pay per task
Avoid a sales call
API docs without auth
Estimate cost upfront
Pros and cons for AI agents
Observational summary written by xpay from the signals captured on 2026-05-06. Not a review of the product — only of its current pricing posture for agent buyers.- Pricing is publicly visible on an indexable page — agents can read tiers without scraping past auth.
- A free tier exists, lowering the bar for an agent builder to prototype before committing budget.
- No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
- All advertised tiers route to a sales contact form; an agent cannot complete a purchase autonomously.
- API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
- No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
How Stackby could lift its score
Add a per-unit price (e.g. $X / 1K calls) to the pricing page so an agent can compute its own cost before committing.
| pricing_visible | true |
| headline_phrasing | STACKBY PRICING — Cost savings are based on average monthly price per user for each app. |
| tier_count | 0 |
| lowest_paid_entry_usd | 12.5 |
| free_tier | true |
| free_tier_terms | null |
| per_unit_price | null |
| annual_required | false |
| self_serve_paid_tiers | 0 |
| sales_only_tiers | 1 |
| public_api_docs_url | https://stackby.com/docs |
| api_docs_auth_walled | false |
| ai_pricing_json_present | false |
| agents_txt_present | false |
| anonymous_purchase_path | false |
| per_unit_classification | null |
| usage_headline_present | false |
| custom_tier_present | true |
| agent_friendly | {"ai_pricing_json":false,"agents_txt":false,"llms_txt":true,"sitemap_xml":true,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false} |
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See agent-ready picksStackby
49
/ 100 (rubric v2.0)Collaboration
STACKBY PRICING — Cost savings are based on average monthly price per user for each app.
0
Yes
$12.5/mo
0 / 1
Public
No
Not published
2026-05-09
Tier-based subscription
Stackby pricing starts at $0/mo for the Free plan; paid plans up to $12.5/mo. Billed monthly or annually with discounts up to 70%.
Free plan (Free)
Discovery files and protocols
Side-channel signals — informational, not part of the score. Each protocol is independent; adoption signals the publisher is thinking about agent buyers.ai-pricing.json
agents.txt
llms.txt
sitemap.xml
MCP Server Card
Agent Skills
x402 / MPP
Compare Stackby with peers
Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.Liveblocks
87
Airtable
74
DEON
74
Teams.cc by 500apps
70
Microsoft Teams
69
Swit
69
GPTTeams
69
Trickle
69
Explore the Agent-Ready SaaS Index
25,480+ SaaS scored on agent-buyability — browse by readiness band, category, or jump straight to a pay-per-run tool on xpay.tools.