Stack AI

Name: Stack AI — Agent-Ready Pricing Assessment
Brand: Stack AI

Partially Agent-Ready

Agent-Ready SaaS Index · stack-ai.com · scored 2026-05-09 · rubric v2.0

Score 53 / 100

Chatbots

Free tier

Self-serve checkout

Public API

Stack AI scores 53/100 on xpay's Agent-Ready Index v2: partial pricing visibility; checkout requires assistance; a public API exists with documentation; a free entry path exists.

See Stack AI pricing summary Live pricing page

Pricing

Stack AI pricing

As of 2026-05-09 · www.stack-ai.com/pricing

Free

Community support on Discord

500 runs per month

1 Seat

Enterprise

Sales

Contact sales

Custom number of runs

Unlimited projects

Custom number of seats

Dedicated infrastructure

Dedicated solution engineers

Score breakdown · rubric v2.0

How Stack AI scores on the agent-ready dimensions

Public pricing visibility

15 / 15

Self-serve checkout

13 / 15

Public API + docs

16 / 20

Usage-based / metered pricing

0 / 20

Free entry path

7 / 7

No sales call required

2 / 7

Card / wallet / x402 payment

0 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total

53 / 100

Effective pricing

What it actually costs at typical scale

Free plan, 1 user, up to 500 runs

$0/mo

· Using the Free tier· Runs limited to 500 per month

Confidence: high

Agent purchase verdict

Can an autonomous agent transact here?

Human-assisted

LLM score: 50/100

Can create account

Yes

Can enter payment method

Can upgrade plan

Can buy more usage

Can cancel online

Yes

Payment methods

Unknown

Human approval recommended

Yes

Pricing transparency

partial

Purchase motion

self_serve

Demo required

Unknown

Quote required

Yes

Annual commit required

Unknown

Auto-renewal mentioned

Cancellation policy visible

Refund policy visible

Invoice payment available

Unknown

Purchase orders supported

Unknown

MSA required

Unknown

DPA available

Yes

Security review required

Unknown

Trial

Available, no card

API readiness

API & developer surface

API-first product

Yes

Sandbox present

Unknown

Webhooks

Unknown

MCP mentioned

Enterprise signals

Trust & compliance

Certifications

SOC2

HIPAA

GDPR

BAA

SSO / SAML

Yes

RBAC

Unknown

Audit logs

Unknown

Competitive intel

Positioning & ecosystem

Headline

“Flexible Pricing For Your Needs”

Buyer persona

enterprise

smb

developer

Integrations mentioned

Slack Bot

Chrome Extension

REST API

Agent purchase simulation

Six-step check: can an agent actually buy from Stack AI?

✓

Discover price

✓

Select a plan

✗

Pay per task

✗

Avoid a sales call

◐

API docs without auth

✗

Estimate cost upfront

Analysis

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.

✓ For an AI agent

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.

◐ Opportunities for the provider

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.

PPU requires account creation and an issued API key; a fully unauthenticated agent purchase is not yet supported.

No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.

One-line fix

How Stack AI 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	Flexible Pricing For Your Needs — Learn with videos & real use cases
tier_count	4
lowest_paid_entry_usd	0
free_tier	true
free_tier_terms	null
per_unit_price	null
annual_required	false
self_serve_paid_tiers	3
sales_only_tiers	0
public_api_docs_url	https://docs.stackai.com/
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}

View raw extracted page text →

Page heading: Flexible Pricing For Your Needs

CTAs (40): Templates · Customers · Pricing · Login · Get a Demo · AcademyLearn with videos & real use cases · DocsHow to use StackAI · IntegrationsConnect with your tools · SecurityBuilt for compliance · LLM LeaderboardCompare AI models · WhitepapersInsights from AI experts · Brand ToolkitGuidelines and assets

Price tokens (6): $0 · $0/month · $0 · $0 · $0 · $0

SolutionsTemplatesCustomersPricingResourcesLoginGet a DemoTemplatesCustomersPricingResourcesEXPLORE STACKAIAcademyLearn with videos & real use casesDocsHow to use StackAIIntegrationsConnect with your toolsSecurityBuilt for complianceLLM LeaderboardCompare AI modelsWhitepapersInsights from AI expertsBrand ToolkitGuidelines and assetsToolsTry StackAI free toolsSTAY CONNECTEDBlogRead the latest news from usEventsEvents for IT and AIChangelogLatest updatesCareersJoin our teamSupportGet in touchPartnershipBuild togetherTrust CenterProtecting your dataSolutionsPRODUCTWorkflow BuilderBuild AI automationsInterfacesDeploy user-facing agentsKnowledge BasesPower smart data retrievalIntegrationsConnect your toolsINDUSTRIESFinanceFor banks and financial teamsInsuranceFor insurers and brokersIndustrialsFor manufacturing and logisticsEducationFor schools and universitiesGovernmentFor public sector teamsHealthcareFor healthcare providersLoginGet a DemoFlexible Pricing For Your NeedsStackAI pricing plans for teams of all sizes. Choose an affordable plan that's packed with the best features for you.Trusted by Free plan$0$0/month/monthStart for free. Upgrade to get the capacity that exactly matches your team's needs.try for free:500 runs per month*2 Projects1 SeatCommunity support on DiscordTry For FreeEnterpriseEnterpriseCustomCustom/month/monthFor growing business who needs custom AI platform with advanced security and support.key features include:Custom number of runs*Unlimited projectsCusto…

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Agent-Ready Spec

Stack AI

Partially Agent-Ready

53

/ 100 (rubric v2.0)

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

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Browse all Chatbots →

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.

Stack AI

Partially Agent-Ready

Agent-Ready SaaS Index · stack-ai.com · scored 2026-05-09 · rubric v2.0

Score 53 / 100

Chatbots

Free tier

Self-serve checkout

Public API

Stack AI scores 53/100 on xpay's Agent-Ready Index v2: partial pricing visibility; checkout requires assistance; a public API exists with documentation; a free entry path exists.

See Stack AI pricing summary Live pricing page

Pricing

Stack AI pricing

As of 2026-05-09 · www.stack-ai.com/pricing

Free

Community support on Discord

500 runs per month

1 Seat

Enterprise

Sales

Contact sales

Custom number of runs

Unlimited projects

Custom number of seats

Dedicated infrastructure

Dedicated solution engineers

Score breakdown · rubric v2.0

How Stack AI scores on the agent-ready dimensions

Public pricing visibility

15 / 15

Self-serve checkout

13 / 15

Public API + docs

16 / 20

Usage-based / metered pricing

0 / 20

Free entry path

7 / 7

No sales call required

2 / 7

Card / wallet / x402 payment

0 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total

53 / 100

Effective pricing

What it actually costs at typical scale

Free plan, 1 user, up to 500 runs

$0/mo

· Using the Free tier· Runs limited to 500 per month

Confidence: high

Agent purchase verdict

Can an autonomous agent transact here?

Human-assisted

LLM score: 50/100

Can create account

Yes

Can enter payment method

Can upgrade plan

Can buy more usage

Can cancel online

Yes

Payment methods

Unknown

Human approval recommended

Yes

Pricing transparency

partial

Purchase motion

self_serve

Demo required

Unknown

Quote required

Yes

Annual commit required

Unknown

Auto-renewal mentioned

Cancellation policy visible

Refund policy visible

Invoice payment available

Unknown

Purchase orders supported

Unknown

MSA required

Unknown

DPA available

Yes

Security review required

Unknown

Trial

Available, no card

API readiness

API & developer surface

API-first product

Yes

Sandbox present

Unknown

Webhooks

Unknown

MCP mentioned

Enterprise signals

Trust & compliance

Certifications

SOC2

HIPAA

GDPR

BAA

SSO / SAML

Yes

RBAC

Unknown

Audit logs

Unknown

Competitive intel

Positioning & ecosystem

Headline

“Flexible Pricing For Your Needs”

Buyer persona

enterprise

smb

developer

Integrations mentioned

Slack Bot

Chrome Extension

REST API

Agent purchase simulation

Six-step check: can an agent actually buy from Stack AI?

✓

Discover price

✓

Select a plan

✗

Pay per task

✗

Avoid a sales call

◐

API docs without auth

✗

Estimate cost upfront

Analysis

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.

✓ For an AI agent

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.

◐ Opportunities for the provider

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.

PPU requires account creation and an issued API key; a fully unauthenticated agent purchase is not yet supported.

No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.

One-line fix

How Stack AI 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	Flexible Pricing For Your Needs — Learn with videos & real use cases
tier_count	4
lowest_paid_entry_usd	0
free_tier	true
free_tier_terms	null
per_unit_price	null
annual_required	false
self_serve_paid_tiers	3
sales_only_tiers	0
public_api_docs_url	https://docs.stackai.com/
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}

View raw extracted page text →

Page heading: Flexible Pricing For Your Needs

Price tokens (6): $0 · $0/month · $0 · $0 · $0 · $0

You work at Stack AI?

Claim this scorecard & lift your score.

Get the breakdown of every signal we measured, the one-line fix, and how your peers in Chatbots stack up.

Evaluating Stack AI?

Compare the agent-ready picks in Chatbots.

If you're building or running an AI agent that needs to buy from this category, see who's scoring highest right now.

See agent-ready picks

Are you Stack AI? Something off in this listing?

Agent-Ready Spec

Stack AI

Partially Agent-Ready

53

/ 100 (rubric v2.0)

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 Stack AI with peers

Highest-scoring companies in the same category that an AI agent might evaluate as an alternative.

AiSensy

87

aisensy.com

Agent-Ready Verified

Robofy

87

robofy.ai

Agent-Ready Verified

Fineguide

87

fineguide.ai

Agent-Ready Verified

WorkHub

87

workhub.ai

Agent-Ready Verified

Chatbase

85

chatbase.co

Agent-Ready Verified

Inworld

85

inworld.ai

Agent-Ready Verified

CustomGPT

82

customgpt.ai

Agent-Ready Verified

GPT-trainer

80

gpt-trainer.com

Agent-Ready Verified

Browse all Chatbots →

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.

Stack AI

Stack AI pricing

Free

Free

Enterprise

Contact sales

How Stack AI scores on the agent-ready dimensions

Total

53 / 100

What it actually costs at typical scale

Free plan, 1 user, up to 500 runs

$0/mo

Can an autonomous agent transact here?

Buyer fitProcurement & commercial terms

Procurement & commercial terms

API & developer surface

Trust & compliance

Positioning & ecosystem

Six-step check: can an agent actually buy from Stack AI?

Pros and cons for AI agents

How Stack AI could lift its score

Source signals (raw evidence used by the rubric)

Source signals (raw evidence used by the rubric)

Claim this scorecard & lift your score.

Compare the agent-ready picks in Chatbots.

Stack AI

53

Discovery files and protocols

Compare Stack AI with peers

AiSensy

87

Robofy

87

Fineguide

87

WorkHub

87

Chatbase

85

Inworld

85

CustomGPT

82

GPT-trainer

80

Explore the Agent-Ready SaaS Index

Selling to Agents

Stack AI

Stack AI pricing

Free

Free

Enterprise

Contact sales

How Stack AI scores on the agent-ready dimensions

Total

53 / 100

What it actually costs at typical scale

Free plan, 1 user, up to 500 runs

$0/mo

Can an autonomous agent transact here?

Buyer fitProcurement & commercial terms

Procurement & commercial terms

API & developer surface

Trust & compliance

Positioning & ecosystem

Six-step check: can an agent actually buy from Stack AI?

Pros and cons for AI agents

How Stack AI could lift its score

Source signals (raw evidence used by the rubric)

Source signals (raw evidence used by the rubric)

Claim this scorecard & lift your score.

Compare the agent-ready picks in Chatbots.

Stack AI

53

Discovery files and protocols

Compare Stack AI with peers

AiSensy

87

Robofy

87