Ambrook

Ambrook is financial management software for farms, ranches, and the trades — construction, trucking, manufacturing, and the interconnected businesses that produce, build, and move physical goods. Founded in 2020 and based in New York, it combines bookkeeping, invoicing, payments, and inventory in one platform, with Schedule F/C tax alignment, enterprise tagging for tracking profitability by business line, and cost-per-head livestock tracking. Positioned as a QuickBooks alternative for agriculture and margin-sensitive industries, Ambrook pairs a full-featured mobile app with U.S.-based, ag-centric support. It also operates an OAuth-gated Model Context Protocol (MCP) server that lets AI agents connect to a business's Ambrook data via a read-only GraphQL surface. Ambrook raised a $26.1M Series A and is backed by investors including Homebrew.

Ambrook is profiled on the APIs.io network. Tagged areas include Company, Fintech, Agriculture, Accounting, and Bookkeeping.

Ambrook’s developer surface includes pricing, signup flow, engineering blog, support, authentication, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.7/100 emerging ▬ flat Agent 19/100 agent aware Front door AI 3/6 light Heartbeat 46/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

0 APIs 1 MCP Servers

Company Fintech Agriculture Accounting Bookkeeping Payments Farm Management MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 19.7/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 7.6 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 4.7 / 9

Regulatory Posture 4.0 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Operational Transparency scores 2.6 — up to +12.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/ambrook/apis.yml: open an issue on github.com/api-evangelist/ambrook to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Dynamic Client Registration

measured — observed by APIs.io (published)

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Ambrook MCP Server

Ambrook operates a hosted Model Context Protocol (MCP) server that lets AI agents connect to a farm/trade business's Ambrook accounting data. Access is gated by an OAuth 2.1 aut...

MCP SERVER

Security Posture 2

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

Ambrook Authentication

oauth2 · 1 scheme

SECURITY

Ambrook Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Ambrook Scopes

5 scopes · authorizationCode

5 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Source (apis.yml)

aid: ambrook
name: Ambrook
description: Ambrook is financial management software for farms, ranches, and the trades — construction, trucking, manufacturing,
  and the interconnected businesses that produce, build, and move physical goods. Founded in 2020 and based in New York, it
  combines bookkeeping, invoicing, payments, and inventory in one platform, with Schedule F/C tax alignment, enterprise tagging
  for tracking profitability by business line, and cost-per-head livestock tracking. Positioned as a QuickBooks alternative
  for agriculture and margin-sensitive industries, Ambrook pairs a full-featured mobile app with U.S.-based, ag-centric support.
  It also operates an OAuth-gated Model Context Protocol (MCP) server that lets AI agents connect to a business's Ambrook
  data via a read-only GraphQL surface. Ambrook raised a $26.1M Series A and is backed by investors including Homebrew.
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: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
image: https://ambrook.com/img/share/default-og.png
url: https://raw.githubusercontent.com/api-evangelist/ambrook/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- homebrew
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Fintech
- Agriculture
- Accounting
- Bookkeeping
- Payments
- Farm Management
- MCP
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://ambrook.com/rss-inside-ambrook.xml
  type: BlogRSS
- type: Website
  url: https://ambrook.com
- type: Pricing
  url: https://ambrook.com/pricing
- type: SignUp
  url: https://ambrook.com/overview/get-started
- type: Login
  url: https://ambrook.com/login
- type: Blog
  url: https://ambrook.com/blog
- type: Support
  url: https://support.ambrook.com/en/
- type: TermsOfService
  url: https://ambrook.com/terms
- type: PrivacyPolicy
  url: https://ambrook.com/privacy
- type: GitHubOrganization
  url: https://github.com/ambrook
- type: MCPServer
  url: mcp/ambrook-mcp.yml
- type: Authentication
  url: authentication/ambrook-authentication.yml
- type: OAuthScopes
  url: scopes/ambrook-scopes.yml
- type: WellKnown
  url: well-known/ambrook-well-known.yml
- type: LLMsTxt
  url: llms/ambrook-llms.txt
- type: DomainSecurity
  url: security/ambrook-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Ambrook API — frequently asked questions

How do I authenticate with the Ambrook API?

Ambrook documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Ambrook Authentication.

Does Ambrook have an MCP server?

Yes. APIs.io lists 1 MCP server for Ambrook: Ambrook operates a hosted Model Context Protocol (MCP) server that lets AI agents connect to a farm/trade business's Ambrook accounting data. Access is gated by an OAuth 2.1 authorization-code flow (P

Is the Ambrook API ready for AI agents?

Ambrook has a Kin Score of 19.7 out of 100 (emerging) and an Agent Readiness score of 18.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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