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Versapay

Versapay is a Toronto, Canada based B2B payments company focused on accounts receivable (AR) automation and integrated payment acceptance for suppliers and their buyers. Its "Collaborative AR" platform combines electronic invoicing, customer collaboration, cash application, and embedded payment processing so businesses can invoice, get paid, and reconcile inside one workflow, with ERP-adjacent integrations for order-to-cash. Versapay serves the North American mid-market and enterprise segment and, unlike consumer money-movement players in Canada's Interac-dominated market, sits in the API-native B2B acquiring and AR/AP money-movement layer. Its API posture is genuinely public and honest: developers.versapay.com hosts a Redocly-rendered reference for a broad REST platform API (onboarding, wallets, orders, order transactions, gift cards, card-present EMV, settlement reporting, autopay, customers, invoices, divisions, notifications, and webhooks) plus a separate hosted-iframe Ecommerce API for PCI-reduced payment sessions. Authentication is HTTPS Basic access authentication using an API Token and Key issued from the account console, with a UAT sandbox alongside production and a documented webhook event model.

agent native

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles Versapay the way a machine reads it — 8 machine-readable artifacts across 2 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 — Versapay scores 55.5/100 (developing), with a separate agent-readiness read of 75/100 (agent native). 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 Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 55.5/100 · developing
Contract Quality 15.1 / 25
Developer Ergonomics 11.7 / 20
Commercial Clarity 8.4 / 20
Operational Transparency 5.5 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Regulatory · Payments 13.1 / 15
Agent readiness — 75/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3

How we profile Versapay

Each block below is one kind of artifact we hold for Versapay. 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 2

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.

Versapay API Reference

The core Versapay platform REST API (v1.3.35, OpenAPI 3.0.0, 86 documented paths) covering the Collaborative AR and payment-acceptance surface: onboarding applications, wallets,...

Versapay Ecommerce API

The Versapay Ecommerce server-side API (v2.0.0, OpenAPI 3.0.0, 11 documented paths) that configures payment sessions, manages customer wallets (credit cards and bank accounts), ...

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.

versapay-mcp.yml

MCP SERVER

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Security 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.

Versapay Authentication

http/oauth2/openIdConnect · 4 schemes

SECURITY

Versapay Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Versapay Scopes

5 scopes · authorizationCode/clientCredentials/password

5 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Versapay Agentic Access

106 operations · 54 acting · 2 human-in-the-loop

106 operations · 54 acting

AGENTIC

Resources

Every other property we hold for Versapay — 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

Build 1

SDKs, sample code, and the tooling you integrate with

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/versapay · machine-readable index on apis.io