Shift4

Shift4 (NYSE: FOUR) is a US-based integrated payments and commerce technology company headquartered in Center Valley, Pennsylvania, and a Fortune 1000 business serving restaurants, hospitality, retail, gaming, stadiums, e-commerce, and nonprofit verticals. It operates as an end-to-end acquirer-processor, owning the full stack from its own gateway and card acquiring through in-person SkyTab POS hardware, online checkout, and alternative payment methods, and has expanded internationally through acquisitions including Finaro (Credorax), Global Blue, and others. Its public developer surface is genuinely API-native: a Redocly-powered developer portal at docs.shift4.com publishes the Shift4 Payment API, a single downloadable OpenAPI 3.1 definition (v1.7.57, 70 paths) covering card transactions, tokenization, gift cards, devices/terminals, ACH, QR and PayPal alternative payments, 3D Secure, payment links, checkout sessions, OCT payouts, and reporting, authenticated with a header AccessToken (API key) plus HMAC-SHA256 request signing and backed by webhook event notifications, a sandbox, SDKs, and a published Postman collection.

Shift4 publishes 21 API contracts indexed on the APIs.io network, including 3D Secure API, ACH API, Batches API, and 18 more. Tagged areas include Payments, United States, Payment Processing, Payment Gateway, and Acquiring.

The Shift4 catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Shift4’s developer surface includes authentication, documentation, API reference, getting-started guide, changelog, support, sandbox, and 30 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.0/100 developing ▬ flat Agent 52/100 agent native Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 4 Agent Skills

Payments United States Payment Processing Payment Gateway Acquiring Payment Terminals Tokenization ACH 3D Secure Gift Cards Payment Links Card Present

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Consumer Commerce

AE-140

Pay PalQR PaymentsTransactions

POST /paypal/sale POST /paypal/refund POST /qrpayments/getqrcode POST /qrpayments/getqrpaymentstatus

Kin Score

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

Composite quality — 52.0/100 · developing

Contract Quality 11.3 / 19

Developer Ergonomics 11.3 / 15

Access Clarity 0.6 / 15

Operational Transparency 4.9 / 10

Contract Governance 2.9 / 9

Discoverability 5.4 / 8

Regulatory Posture 4.5 / 15

Create-or-Update Ergonomics 2.8 / 10

Agent readiness — 52/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

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)
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter
Well-Known Catalog +4 pts — common[].type includes WellKnown, APICatalog, or api-catalog

1 more unmet check in the Agent Readiness table above.

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

Access Clarity scores 3.9 — up to +19.2 composite points
Contract Quality scores 60.1 — up to +10.0 composite points
Contract Governance scores 31.8 — up to +8.2 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/shift4/apis.yml: open an issue on github.com/api-evangelist/shift4 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
EMV Card Terminals (card acceptance hardware and kernels)	builds-on	35.4	-	-
MACH & Headless Commerce	builds-on	35.4	-	-
EU/EEA Payment and E-Money Institutions (PSD2 passports)	builds-on	35.4	-	-
Official SDKs on Packagist, pub.dev and Hex	builds-on	35.4	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 5

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.

3-D Secure

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

NACHA

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 21

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

Shift4 3D Secure API

The 3D Secure API from Shift4 — 2 operation(s) for 3d secure.

Shift4 ACH API

The ACH API from Shift4 — 5 operation(s) for ach.

Shift4 Batches API

The Batches API from Shift4 — 1 operation(s) for batches.

Shift4 Cards API

The Cards API from Shift4 — 2 operation(s) for cards.

Shift4 Checkout Sessions API

The Checkout Sessions API from Shift4 — 2 operation(s) for checkout sessions.

Shift4 Credentials API

The Credentials API from Shift4 — 1 operation(s) for credentials.

Shift4 DCC API

The DCC API from Shift4 — 1 operation(s) for dcc.

Shift4 Devices API

The Devices API from Shift4 — 13 operation(s) for devices.

Shift4 Gift Cards API

The Gift Cards API from Shift4 — 9 operation(s) for gift cards.

Shift4 Merchants API

The Merchants API from Shift4 — 1 operation(s) for merchants.

Shift4 Mode API

The Mode API from Shift4 — 2 operation(s) for mode.

Shift4 OCT API

The OCT API from Shift4 — 2 operation(s) for oct.

Shift4 Payment Links API

The Payment Links API from Shift4 — 4 operation(s) for payment links.

Shift4 QR Payments API

The QR Payments API from Shift4 — 4 operation(s) for qr payments.

Shift4 Reports API

The Reports API from Shift4 — 1 operation(s) for reports.

Shift4 Risk API

The Risk API from Shift4 — 1 operation(s) for risk.

Shift4 Rule API

The Rule API from Shift4 — 1 operation(s) for rule.

Shift4 Tokens API

The Tokens API from Shift4 — 5 operation(s) for tokens.

Shift4 Transactions API

The Transactions API from Shift4 — 8 operation(s) for transactions.

Shift4 Updater API

The Updater API from Shift4 — 2 operation(s) for updater.

Shift4 Pay Pal API

The Pay Pal API from Shift4 — 3 operation(s) for pay pal.

Scroll for all 21

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Shift4 Payment API

OPEN COLLECTION

MCP Servers 1

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

Shift4 MCP Server

MCP server; 11 tools listed.

MCP SERVER

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Authorize and capture a card payment

AGENT SKILL

Create and reconcile a payment link

AGENT SKILL

Make a sale and refund it

AGENT SKILL

Tokenize a card for card-on-file

AGENT SKILL

Event Specifications 1

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

Shift4 Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Shift4 API Rules

54 rules · 44 errors 8 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Shift4 Payment Api Overlay

2 actions · update · shift4-payment-api.yml

DERIVED

Security Posture 2

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

Shift4 Authentication

apiKey/http · 2 schemes

SECURITY

Shift4 Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Shift4 Agentic Access

72 operations · 58 acting · 1 human-in-the-loop

72 operations · 58 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgenticAccess

WellKnown

MCPServer

LLMsTxt

AgentSkills

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Idempotency

DataModel

Webhooks

Components

Scroll for all 8

Build 7

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

PostmanCollection

PostmanCollection

JavaScriptLibrary

JavaScriptLibrary

GitHubOrganization

Packages

SDKs

DeclineCodes

Scroll for all 7

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Compliance

Compliance

Operate 5

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

StatusPage

StatusPage

DeprecationPolicy

DeprecationPolicy

ChangeLog

ChangeLog

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: shift4
url: https://raw.githubusercontent.com/api-evangelist/shift4/refs/heads/main/apis.yml
name: Shift4
kind: company
description: 'Shift4 (NYSE: FOUR) is a US-based integrated payments and commerce technology company headquartered in Center
  Valley, Pennsylvania, and a Fortune 1000 business serving restaurants, hospitality, retail, gaming, stadiums, e-commerce,
  and nonprofit verticals. It operates as an end-to-end acquirer-processor, owning the full stack from its own gateway and
  card acquiring through in-person SkyTab POS hardware, online checkout, and alternative payment methods, and has expanded
  internationally through acquisitions including Finaro (Credorax), Global Blue, and others. Its public developer surface
  is genuinely API-native: a Redocly-powered developer portal at docs.shift4.com publishes the Shift4 Payment API, a single
  downloadable OpenAPI 3.1 definition (v1.7.57, 70 paths) covering card transactions, tokenization, gift cards, devices/terminals,
  ACH, QR and PayPal alternative payments, 3D Secure, payment links, checkout sessions, OCT payouts, and reporting, authenticated
  with a header AccessToken (API key) plus HMAC-SHA256 request signing and backed by webhook event notifications, a sandbox,
  SDKs, and a published Postman collection.'
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
x-docs-platform: redocly
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Payments
- United States
- Payment Processing
- Payment Gateway
- Acquiring
- Payment Terminals
- Tokenization
- ACH
- 3D Secure
- Gift Cards
- Payment Links
- Card Present
tags_raw:
- Payments
- United States
- Payment Processing
- Payment Gateway
- Acquiring
- Payment Terminal
- Tokenization
- ACH
- 3D Secure
- Gift Cards
- Payment Links
- Card Present
created: '2026-07-24'
modified: '2026-07-24'
specificationVersion: '0.23'
apis:
- aid: shift4:shift4-3d-secure-api
  name: Shift4 3D Secure API
  description: The 3D Secure API from Shift4 — 2 operation(s) for 3d secure.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - 3D Secure
  properties:
  - type: OpenAPI
    url: openapi/shift4-3d-secure-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-ach-api
  name: Shift4 ACH API
  description: The ACH API from Shift4 — 5 operation(s) for ach.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - ACH
  properties:
  - type: OpenAPI
    url: openapi/shift4-ach-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-batches-api
  name: Shift4 Batches API
  description: The Batches API from Shift4 — 1 operation(s) for batches.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Batches
  properties:
  - type: OpenAPI
    url: openapi/shift4-batches-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-cards-api
  name: Shift4 Cards API
  description: The Cards API from Shift4 — 2 operation(s) for cards.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Cards
  properties:
  - type: OpenAPI
    url: openapi/shift4-cards-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-checkout-sessions-api
  name: Shift4 Checkout Sessions API
  description: The Checkout Sessions API from Shift4 — 2 operation(s) for checkout sessions.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Checkout Sessions
  properties:
  - type: OpenAPI
    url: openapi/shift4-checkout-sessions-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-credentials-api
  name: Shift4 Credentials API
  description: The Credentials API from Shift4 — 1 operation(s) for credentials.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Credentials
  properties:
  - type: OpenAPI
    url: openapi/shift4-credentials-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-dcc-api
  name: Shift4 DCC API
  description: The DCC API from Shift4 — 1 operation(s) for dcc.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - DCC
  properties:
  - type: OpenAPI
    url: openapi/shift4-dcc-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-devices-api
  name: Shift4 Devices API
  description: The Devices API from Shift4 — 13 operation(s) for devices.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Devices
  properties:
  - type: OpenAPI
    url: openapi/shift4-devices-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-gift-cards-api
  name: Shift4 Gift Cards API
  description: The Gift Cards API from Shift4 — 9 operation(s) for gift cards.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Gift Cards
  properties:
  - type: OpenAPI
    url: openapi/shift4-gift-cards-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-merchants-api
  name: Shift4 Merchants API
  description: The Merchants API from Shift4 — 1 operation(s) for merchants.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Merchants
  properties:
  - type: OpenAPI
    url: openapi/shift4-merchants-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-mode-api
  name: Shift4 Mode API
  description: The Mode API from Shift4 — 2 operation(s) for mode.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Mode
  properties:
  - type: OpenAPI
    url: openapi/shift4-mode-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-oct-api
  name: Shift4 OCT API
  description: The OCT API from Shift4 — 2 operation(s) for oct.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - OCT
  properties:
  - type: OpenAPI
    url: openapi/shift4-oct-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-payment-links-api
  name: Shift4 Payment Links API
  description: The Payment Links API from Shift4 — 4 operation(s) for payment links.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Payment Links
  properties:
  - type: OpenAPI
    url: openapi/shift4-payment-links-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-qr-payments-api
  name: Shift4 QR Payments API
  description: The QR Payments API from Shift4 — 4 operation(s) for qr payments.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - QR Payments
  properties:
  - type: OpenAPI
    url: openapi/shift4-qr-payments-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-reports-api
  name: Shift4 Reports API
  description: The Reports API from Shift4 — 1 operation(s) for reports.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/shift4-reports-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-risk-api
  name: Shift4 Risk API
  description: The Risk API from Shift4 — 1 operation(s) for risk.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Risk Management
  tags_raw:
  - Risk
  properties:
  - type: OpenAPI
    url: openapi/shift4-risk-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-rule-api
  name: Shift4 Rule API
  description: The Rule API from Shift4 — 1 operation(s) for rule.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - rule
  tags_raw:
  - Rule
  properties:
  - type: OpenAPI
    url: openapi/shift4-rule-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-tokens-api
  name: Shift4 Tokens API
  description: The Tokens API from Shift4 — 5 operation(s) for tokens.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/shift4-tokens-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-transactions-api
  name: Shift4 Transactions API
  description: The Transactions API from Shift4 — 8 operation(s) for transactions.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/shift4-transactions-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-updater-api
  name: Shift4 Updater API
  description: The Updater API from Shift4 — 2 operation(s) for updater.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - Updater
  properties:
  - type: OpenAPI
    url: openapi/shift4-updater-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
- aid: shift4:shift4-pay-pal-api
  name: Shift4 Pay Pal API
  description: The Pay Pal API from Shift4 — 3 operation(s) for pay pal.
  humanURL: https://docs.shift4.com/apis/payments-platform-rest/openapi
  baseURL: https://api.shift4api.net/api/rest/v1
  tags:
  - PayPal
  tags_raw:
  - Pay Pal
  properties:
  - type: OpenAPI
    url: openapi/shift4-pay-pal-api-openapi.yml
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/capturing-sales
  - type: APIReference
    url: https://docs.shift4.com/apis/payments-platform-rest/openapi
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/understanding-card-tokens
  - type: Documentation
    url: https://docs.shift4.com/guides/device-functionality/commerce-engine
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments/ach
  - type: Documentation
    url: https://docs.shift4.com/guides/alternative-payments
  - type: Documentation
    url: https://docs.shift4.com/guides/advanced-concepts/3d-secure
  - type: Documentation
    url: https://docs.shift4.com/guides/core-concepts/payment-links
common:
- type: CapabilityMap
  url: capabilities/shift4-capability-edges.yml
  name: Shift4 Business Capability Map
- type: AgentSkill
  url: skills/shift4-authorize-and-capture.md
- type: SDKs
  url: https://docs.shift4.com/sdks/ios
- type: AgenticAccess
  url: agentic-access/shift4-agentic-access.yml
- type: DomainSecurity
  url: security/shift4-domain-security.yml
- type: Authentication
  url: authentication/shift4-authentication.yml
- type: Website
  url: https://www.shift4.com
- type: DeveloperPortal
  url: https://docs.shift4.com
- type: Documentation
  url: https://docs.shift4.com
- type: APIReference
  url: https://docs.shift4.com/apis/payments-platform-rest/openapi
- type: GettingStarted
  url: https://docs.shift4.com/guides/quickstart
- type: PostmanCollection
  url: https://docs.shift4.com/tools/postman
- type: ChangeLog
  url: https://docs.shift4.com/changelog
- type: Support
  url: https://docs.shift4.com/guides/support
- type: StatusPage
  url: https://status.shift4.com
- type: JavaScriptLibrary
  url: https://dev.shift4.com/docs/js/
- type: GitHubOrganization
  url: https://github.com/shift4developer
- type: Packages
  url: packages/shift4-packages.yml
- type: SDKs
  url: packages/shift4-packages.yml
- type: WellKnown
  url: well-known/shift4-well-known.yml
- type: MCPServer
  url: mcp/shift4-mcp.yml
- type: LLMsTxt
  url: llms/shift4-llms.txt
- type: Overlay
  url: overlays/shift4-payment-api-overlay.yaml
- type: Conformance
  url: conformance/shift4-conformance.yml
- type: Compliance
  url: https://www.shift4.com/pdf/S4P-PCI-DSS-Roles-and-Responsibilities.pdf
- type: ErrorCatalog
  url: errors/shift4-error-codes.yml
- type: DeclineCodes
  url: errors/shift4-decline-codes.yml
- type: Lifecycle
  url: lifecycle/shift4-lifecycle.yml
- type: DeprecationPolicy
  url: https://docs.shift4.com/guides/deprecated/legacy-card-tokens
- type: Sandbox
  url: sandbox/shift4-sandbox.yml
- type: Conventions
  url: conventions/shift4-conventions.yml
- type: Idempotency
  url: conventions/shift4-conventions.yml
- type: ChangeLog
  url: changelog/shift4-changelog.yml
- type: DataModel
  url: data-model/shift4-data-model.yml
- type: Webhooks
  url: asyncapi/shift4-webhooks.yml
- type: Components
  url: components/shift4-components.yml
- type: AgentSkills
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Shift4 API — frequently asked questions

Does Shift4 have an API?

Yes. APIs.io lists 21 APIs from Shift4, including Shift4 3D Secure API, Shift4 ACH API and Shift4 Batches API, and 18 more.

Is there an OpenAPI specification for the Shift4 API?

Yes. APIs.io indexes 21 OpenAPI specifications for Shift4, each linked for download from this page.

How do I authenticate with the Shift4 API?

Shift4 documents its authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Shift4 Authentication.

Does Shift4 have an MCP server?

Yes. APIs.io lists 1 MCP server for Shift4: MCP server; 11 tools listed.

Is the Shift4 API ready for AI agents?

Shift4 has a Kin Score of 52.0 out of 100 (developing) and an Agent Readiness score of 52.4 (agent-native), scored by API Evangelist on 2026-11-06.

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