AppZen
AppZen is an AI platform for finance teams that automates accounts payable and expense auditing. Its Autonomous AP product ingests invoices, purchase orders, goods receipts and supporting master data, then applies AI to run validation checks, assign risk scores, and audit spend before payment. The public Autonomous AP REST API (Swagger 2.0, 54 operations) lets ERP and accounting systems such as SAP, Oracle, NetSuite, Coupa, Workday and Microsoft Dynamics push documents into AppZen and retrieve audit results. Authentication is via three API-key headers issued by AppZen Support, with US sandbox and production environments (EU coming soon).
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles AppZen the way a machine reads it — 42 machine-readable artifacts across 19 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — AppZen scores 38.6/100 (thin), with a separate agent-readiness read of 33/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Put this on your own site. The badge is drawn live from AppZen's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/appzen/"
title="AppZen on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/appzen.svg"
alt="AppZen Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/appzen/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/appzen/"
title="AppZen on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/appzen/card.svg"
alt="AppZen Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile AppZen
Each block below is one kind of artifact we hold for AppZen. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 19
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
AppZen Chart of Accounts API
The Chart of Accounts API from AppZen — 3 operation(s) for chart of accounts.
AppZen Custom Data Sets API
The Custom Data Sets API from AppZen — 3 operation(s) for custom data sets.
AppZen Documents API
The Documents API from AppZen — 1 operation(s) for documents.
AppZen Entities API
The Entities API from AppZen — 4 operation(s) for entities.
AppZen Externally Processed Invoices API
The Externally Processed Invoices API from AppZen — 2 operation(s) for externally processed invoices.
AppZen Goods Receipt API
The Goods Receipt API from AppZen — 2 operation(s) for goods receipt.
AppZen Invoice Audit Results API
The Invoice Audit Results API from AppZen — 2 operation(s) for invoice audit results.
AppZen Invoice Status Sync API
The Invoice Status Sync API from AppZen — 1 operation(s) for invoice status sync.
AppZen Invoices API
The Invoices API from AppZen — 3 operation(s) for invoices.
AppZen Lookup Item API
The Lookup Item API from AppZen — 3 operation(s) for lookup item.
AppZen Lookup Table API
The Lookup Table API from AppZen — 3 operation(s) for lookup table.
AppZen Payment Terms API
The Payment Terms API from AppZen — 4 operation(s) for payment terms.
AppZen Processed Invoices API
The Processed Invoices API from AppZen — 1 operation(s) for processed invoices.
AppZen Purchase Orders API
The Purchase Orders API from AppZen — 4 operation(s) for purchase orders.
AppZen Suppliers API
The Suppliers API from AppZen — 4 operation(s) for suppliers.
AppZen Tax Master API
The Tax Master API from AppZen — 3 operation(s) for tax master.
AppZen Unit of Measures API
The Unit of Measures API from AppZen — 3 operation(s) for unit of measures.
AppZen User Groups API
The User Groups API from AppZen — 3 operation(s) for user groups.
AppZen Vat API
The Vat API from AppZen — 4 operation(s) for vat.
Scroll within the panel for all 19 ·
Open Collections 20
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Custom Data Sets API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Documents API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Entities API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Goods Receipt API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Invoice Status Sync API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Invoices API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Lookup Item API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Lookup Table API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Payment Terms API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Processed Invoices API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Purchase Orders API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Suppliers API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Tax Master API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Unit of Measures API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts User Groups API
OPEN COLLECTIONAutonomous AP APIs Chart of Accounts Vat API
OPEN COLLECTIONScroll within the panel for all 20 ·
MCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
appzen-mcp.yml
MCP SERVERSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for AppZen — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/appzen · machine-readable index on apis.io
This is an independent, third-party profile of AppZen, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.