Stacks

Stacks is an AI-native financial close and accounting platform for controllers, CFOs, and accounting teams. It automates the monthly close across existing ERPs with agentic tooling for account reconciliations and transaction matching, journal-entry posting and review, close-management checklists and approvals, and AI-powered analysis, variance explanation, and reporting. Stacks connects directly to ERP systems (Microsoft Dynamics 365, NetSuite, SAP S/4HANA, Workday), data warehouses (Snowflake, Databricks, BigQuery, Redshift), file storage, and spreadsheets, and offers an Excel add-in for manual journals. A developer API for custom reconciliation logic is announced as "coming soon." Stacks is a fintech company backed by EQT Ventures, General Catalyst, Lux Capital, Union Square Ventures, and Version One Ventures. Profile enriched by the API Evangelist pipeline from public web surfaces (no public API specification is yet available).

Stacks is profiled on the APIs.io network. Tagged areas include Company, Fintech, Accounting, Financial Close, and Reconciliation.

Stacks’ developer surface includes signup flow, engineering blog, support, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.2/100 emerging ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Fintech Accounting Financial Close Reconciliation ERP Artificial Intelligence Agentic

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 12.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 3.7 / 20

Operational Transparency 1.4 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/stacks: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Stacks Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Stacks Vulnerability Disclosure

Hackerone

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

TrustCenter

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: stacks
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stacks.png
name: Stacks
description: Stacks is an AI-native financial close and accounting platform for controllers, CFOs, and accounting teams. It
  automates the monthly close across existing ERPs with agentic tooling for account reconciliations and transaction matching,
  journal-entry posting and review, close-management checklists and approvals, and AI-powered analysis, variance explanation,
  and reporting. Stacks connects directly to ERP systems (Microsoft Dynamics 365, NetSuite, SAP S/4HANA, Workday), data warehouses
  (Snowflake, Databricks, BigQuery, Redshift), file storage, and spreadsheets, and offers an Excel add-in for manual journals.
  A developer API for custom reconciliation logic is announced as "coming soon." Stacks is a fintech company backed by EQT
  Ventures, General Catalyst, Lux Capital, Union Square Ventures, and Version One Ventures. Profile enriched by the API Evangelist
  pipeline from public web surfaces (no public API specification is yet available).
url: https://raw.githubusercontent.com/api-evangelist/stacks/refs/heads/main/apis.yml
x-api-posture: no-product-api
x-api-posture-basis: observed
x-api-posture-note: Profile enriched by the API Evangelist pipeline from public web surfaces (no public API specification
  is yet available).
x-type: company
x-source: vc-portfolio
x-backed-by:
- eqt-ventures
- general-catalyst
- lux-capital
- union-square-ventures
- version-one-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Fintech
- Accounting
- Financial Close
- Reconciliation
- ERP
- Artificial Intelligence
- Agentic
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://stacks.ai/
- type: SignUp
  url: https://app.stacks.ai
- type: Blog
  url: https://stacks.ai/resources/news
- type: PrivacyPolicy
  url: https://stacks.ai/privacy-policy
- type: TrustCenter
  url: https://trust.stacks.ai
- type: Support
  url: mailto:support@stacks.ai
- type: LLMsTxt
  url: llms/stacks-llms.txt
- type: WellKnown
  url: well-known/stacks-well-known.yml
- type: SecurityTxt
  url: well-known/stacks-security.txt
- type: VulnerabilityDisclosure
  url: security/stacks-vulnerability-disclosure.yml
- type: Security
  url: security/stacks-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/stacks-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 5
  pass: local-v1

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