PayStand

Paystand is a blockchain-enabled B2B payments and receivables automation platform that lets businesses send, receive, and reconcile payments with zero-fee bank-to-bank (ACH/EFT) transfers, card acceptance, and a Bitcoin-anchored "Assurety" certified audit trail. The Paystand Developer API (v3) exposes payments, refunds, disputes, payers, customer banks, accounts and balances, scheduled payments, transfers, withdrawals (including auto-withdrawal settings), a Checkout / Billing Portal embed surface, an Events resource, and the Assurety blockchain notarization APIs (assurors, chains, contracts, records, schemas, wallets). It integrates with major ERPs and e-commerce platforms (Magento, WooCommerce, BigCommerce) and is used to automate accounts receivable and payable for mid-market and enterprise finance teams.

PayStand publishes 1 API on the APIs.io network. Tagged areas include Company, Payments, B2B Payments, Accounts Receivable, and Accounts Payable.

PayStand’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.3/100 thin ▬ flat Agent 14/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs

Company Payments B2B Payments Accounts Receivable Accounts Payable Fintech Blockchain ACH Billing Checkout

Kin Score

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

Composite quality — 35.3/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 8.9 / 17

Access Clarity 8.3 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.9 / 10

Discoverability 6.5 / 9

Regulatory Posture 8.8 / 15

Agent readiness — 14/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 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 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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/.

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/paystand: 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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Paystand Developer API

Paystand v3 REST API for B2B payments: create and manage payments, refunds, disputes, payers, customer banks, accounts, balances, scheduled payments, transfers and withdrawals, ...

Security Posture 2

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

Paystand Authentication

oauth2/apiKey/http · 4 schemes

SECURITY

Paystand Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Paystand Scopes

1 scope · clientCredentials/authorizationCode

1 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Components

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

TrustCenter

TrustCenter

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: paystand
name: PayStand
description: Paystand is a blockchain-enabled B2B payments and receivables automation platform that lets businesses send,
  receive, and reconcile payments with zero-fee bank-to-bank (ACH/EFT) transfers, card acceptance, and a Bitcoin-anchored
  "Assurety" certified audit trail. The Paystand Developer API (v3) exposes payments, refunds, disputes, payers, customer
  banks, accounts and balances, scheduled payments, transfers, withdrawals (including auto-withdrawal settings), a Checkout
  / Billing Portal embed surface, an Events resource, and the Assurety blockchain notarization APIs (assurors, chains, contracts,
  records, schemas, wallets). It integrates with major ERPs and e-commerce platforms (Magento, WooCommerce, BigCommerce) and
  is used to automate accounts receivable and payable for mid-market and enterprise finance teams.
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
  generated: '2026-07-22'
  method: derived
image: https://www.paystand.com/hubfs/paystand-logo.png
url: https://raw.githubusercontent.com/api-evangelist/paystand/refs/heads/main/apis.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 16
  pass: local-v1
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Payments
- B2B Payments
- Accounts Receivable
- Accounts Payable
- Fintech
- Blockchain
- ACH
- Billing
- Checkout
apis:
- name: Paystand Developer API
  description: 'Paystand v3 REST API for B2B payments: create and manage payments, refunds, disputes, payers, customer banks,
    accounts, balances, scheduled payments, transfers and withdrawals, plus the Assurety blockchain notarization surface and
    Checkout / Billing Portal embed.'
  humanURL: https://developers.paystand.com/reference
  baseURL: https://api.paystand.com/v3
  tags:
  - Payments
  - B2B Payments
  - ACH
  - Blockchain
  properties:
  - type: Authentication
    url: authentication/paystand-authentication.yml
  - type: OAuthScopes
    url: scopes/paystand-scopes.yml
  - type: ErrorCatalog
    url: errors/paystand-problem-types.yml
  - type: DeclineCodes
    url: errors/paystand-decline-codes.yml
  - type: Conventions
    url: conventions/paystand-conventions.yml
  - type: DataModel
    url: data-model/paystand-data-model.yml
  - type: Sandbox
    url: sandbox/paystand-sandbox.yml
  - type: X-MCPServerCandidate
    url: mcp/paystand-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
  - type: Lifecycle
    url: lifecycle/paystand-lifecycle.yml
  - type: Conformance
    url: conformance/paystand-conformance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/paystand-domain-security.yml
- type: Website
  url: https://www.paystand.com
- type: DeveloperPortal
  url: https://developers.paystand.com
- type: Documentation
  url: https://developers.paystand.com/docs/introduction
- type: APIReference
  url: https://developers.paystand.com/reference
- type: GettingStarted
  url: https://developers.paystand.com/reference/getting-started
- type: Support
  url: https://support.paystand.com/hc/en-us
- type: Blog
  url: https://www.paystand.com/blog
- type: GitHubOrganization
  url: https://github.com/paystand
- type: Pricing
  url: https://www.paystand.com/pricing
- type: SignUp
  url: https://dashboard.paystand.com/v2/signin
- type: TermsOfService
  url: https://www.paystand.com/terms-of-service
- type: PrivacyPolicy
  url: https://privacy.cptn.co/privacy-policy/9e569c48-09ec-4470-9690-5f41a96372a6
- type: StatusPage
  url: https://status.paystand.com
- type: TrustCenter
  url: https://trust.paystand.com
- type: LLMsTxt
  url: llms/paystand-llms.txt
- type: WellKnown
  url: well-known/paystand-well-known.yml
- type: Packages
  url: packages/paystand-packages.yml
- type: SDKs
  url: packages/paystand-packages.yml
- type: Components
  url: components/paystand-components.yml

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/paystand"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/paystand/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/paystand/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.