PAY.JP

PAY.JP is an online payment service operated by PAY, Inc. (PAY株式会社) in Japan. Its Stripe-style REST API lets merchants create charges, tokenize cards, manage customers, run subscriptions (定期課金), and settle transfers (入金) in Japanese yen, with a Platform API (beta) for marketplace/multi-tenant payouts.

PAY.JP publishes 14 API contracts indexed on the APIs.io network, including 3D Secure API, Account API, Balances API, and 11 more. Tagged areas include Payments, Fintech, Japan, Credit Cards, and Subscription.

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

PAY.JP’s developer surface includes authentication, sandbox, changelog, documentation, getting-started guide, support, pricing, and 35 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

71.8/100 exemplar ▬ flat Agent 32/100 agent ready Front door AI 1/6 silent Heartbeat 90/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 4 Agent Skills

Payments Fintech Japan Credit Cards Subscription Tokenization

What this lets a business do 2

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

Subscription Lifecycle Management

BC-4240

Subscriptions

POST /subscriptions

Subscription Billing & Revenue Management

BC-4250

Charges

POST /charges POST /charges/{id} POST /charges/{id}/capture

What people ask PAY.JP 14

The questions people put to an LLM, and the jobs they hand an agent, that PAY.JP's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

PAY.JP Charges API List charges “How do I see all the payments I've charged?” Charge a card or customer “How do I charge a customer's card in yen with PAY.JP?” Get a charge “How do I check the details of one charge?” Edit a charge's description or metadata “Can I change the description on a charge after it was created?”

PAY.JP Subscriptions API List subscriptions “How do I see all my active and past subscriptions?” Subscribe a customer to a plan “How do I put a customer on a recurring plan?” Get a subscription “How do I check the status of one subscription?” Update a subscription “How do I change the settings on an existing subscription?”

PAY.JP Platform API List platform tenants “Which sub-merchants are registered under my platform?” Add a sub-merchant tenant “How do I onboard a new sub-merchant onto my platform?” Get a platform tenant “How do I look up one sub-merchant's tenant record?” Update a platform tenant “How do I change a sub-merchant's tenant details?”

PAY.JP 3D Secure API Finish 3D Secure authentication for a charge “After the cardholder passes 3D Secure, how do I complete the charge that was waiting on it?” Finish 3D Secure authentication for a card token “Once a cardholder completes 3D Secure on a token, how do I mark the token as authenticated?” List 3D Secure requests “Which standalone 3D Secure requests have I started for stored cards?” Start 3D Secure authentication for a stored card “How do I run 3D Secure on a card that is already saved to a customer?”

PAY.JP Customers API List customers “How do I get a list of all my customers?” Create a customer “How do I create a customer so I can charge them again later?” Get a customer “How do I look up one customer's details?” Update a customer “How do I change an existing customer's details?”

PAY.JP Cards API List a customer's saved cards “Which cards does this customer have on file?” Add a card to a customer “How do I save a new card to an existing customer using a token?” Get one of a customer's cards “How do I look up a specific saved card for a customer?” Update a customer's saved card “How do I change the details of a card already saved on a customer?”

PAY.JP Plans API List recurring plans “What recurring billing plans have I set up?” Create a recurring billing plan “How do I set up a monthly plan for subscriptions?” Get a plan “How do I check the price and interval of one plan?” Update a plan “Can I edit a plan after I've created it?”

PAY.JP Transfers API List payouts “When have I been paid out to my bank account?” Get a payout “How do I look up one payout's amount and date?” List the charges in a payout “Which charges were settled in a specific payout?”

PAY.JP Statements API List transaction statements “How do I see my transaction statements?” Get a transaction statement “How do I view the line items in one statement?” Get a CSV download link for a statement “Can I download a statement as a CSV file?”

PAY.JP Tokens API Tokenize a card “How do I turn card details into a single-use token?” Get a card token “How do I check whether a card token has been used?” Finish 3D Secure authentication for a card token “Once a cardholder completes 3D Secure on a token, how do I mark the token as authenticated?”

PAY.JP Events API List webhook events “How do I see the events that were sent to my webhooks?” Get an event “How do I look up one event by its id?”

PAY.JP Balances API List account balances “What balances do I have accumulating on my account?” Get a single balance “How do I look up the details of one specific balance?”

Showing 12 of 14 APIs with phrasing — see every API.

Kin Score

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

Composite quality — 71.8/100 · exemplar

Contract Quality 10.4 / 19

Developer Ergonomics 11.2 / 15

Access Clarity 15.0 / 15

Operational Transparency 6.7 / 10

Contract Governance 2.9 / 9

Discoverability 5.5 / 8

Regulatory Posture 6.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 7 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/payjp/"><img src="https://apis.io/badge/payjp/card.svg" alt="PAY.JP on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

5 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 55.2 — up to +11.2 composite points
Contract Governance scores 31.8 — up to +8.2 composite points
Developer Ergonomics scores 74.4 — up to +5.1 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/payjp/apis.yml: open an issue on github.com/api-evangelist/payjp 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
Consumer Lending Licensing (UK, US, Canada credit licence registers)	distribution	28.7	-	-
Japan FSA Registered Fintech (crypto exchanges, stablecoin intermediaries, funds transfer, bank-API agents, prepaid)	distribution	28.7	-	-
Official SDKs on Packagist, pub.dev and Hex	distribution	28.7	-	-

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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 14

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

PAY.JP 3D Secure API

The 3D Secure API from PAY.JP — 4 operation(s) for 3d secure.

PAY.JP Account API

The Account API from PAY.JP — 1 operation(s) for account.

PAY.JP Balances API

The Balances API from PAY.JP — 2 operation(s) for balances.

PAY.JP Cards API

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

PAY.JP Charges API

The Charges API from PAY.JP — 6 operation(s) for charges.

PAY.JP Customers API

The Customers API from PAY.JP — 2 operation(s) for customers.

PAY.JP Events API

The Events API from PAY.JP — 2 operation(s) for events.

PAY.JP Plans API

The Plans API from PAY.JP — 2 operation(s) for plans.

PAY.JP Platform API

The Platform API from PAY.JP — 4 operation(s) for platform.

PAY.JP Statements API

The Statements API from PAY.JP — 3 operation(s) for statements.

PAY.JP Subscriptions API

The Subscriptions API from PAY.JP — 5 operation(s) for subscriptions.

PAY.JP Terms API

The Terms API from PAY.JP — 2 operation(s) for terms.

PAY.JP Tokens API

The Tokens API from PAY.JP — 3 operation(s) for tokens.

PAY.JP Transfers API

The Transfers API from PAY.JP — 3 operation(s) for transfers.

Scroll for all 14

Postman Collections 14

Ready-to-run Postman collections for exercising this provider's APIs.

PAY.JP 3D Secure API

POSTMAN

PAY.JP 3D Secure Account API

POSTMAN

PAY.JP 3D Secure Balances API

POSTMAN

PAY.JP 3D Secure Cards API

POSTMAN

PAY.JP 3D Secure Charges API

POSTMAN

PAY.JP 3D Secure Customers API

POSTMAN

PAY.JP 3D Secure Events API

POSTMAN

PAY.JP 3D Secure Plans API

POSTMAN

PAY.JP 3D Secure Platform API

POSTMAN

PAY.JP 3D Secure Statements API

POSTMAN

PAY.JP 3D Secure Subscriptions API

POSTMAN

PAY.JP 3D Secure Terms API

POSTMAN

PAY.JP 3D Secure Tokens API

POSTMAN

PAY.JP 3D Secure Transfers API

POSTMAN

Scroll for all 14

Open Collections 14

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

PAY.JP 3D Secure API

OPEN COLLECTION

PAY.JP 3D Secure Account API

OPEN COLLECTION

PAY.JP 3D Secure Balances API

OPEN COLLECTION

PAY.JP 3D Secure Cards API

OPEN COLLECTION

PAY.JP 3D Secure Charges API

OPEN COLLECTION

PAY.JP 3D Secure Customers API

OPEN COLLECTION

PAY.JP 3D Secure Events API

OPEN COLLECTION

PAY.JP 3D Secure Plans API

OPEN COLLECTION

PAY.JP 3D Secure Platform API

OPEN COLLECTION

PAY.JP 3D Secure Statements API

OPEN COLLECTION

PAY.JP 3D Secure Subscriptions API

OPEN COLLECTION

PAY.JP 3D Secure Terms API

OPEN COLLECTION

PAY.JP 3D Secure Tokens API

OPEN COLLECTION

PAY.JP 3D Secure Transfers API

OPEN COLLECTION

Scroll for all 14

Agent Skills 4

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

Authorize, capture, and refund a charge

AGENT SKILL

Create a customer, plan, and subscription

AGENT SKILL

Receive and verify PAY.JP webhooks

AGENT SKILL

Tokenize a card and create a charge

AGENT SKILL

PAY.JP API pricing

Prices published by PAY.JP, read 2026-10-28 from pay.jp/plan.

Plan	Price
スタンダードプラン	3.3 % Includes: 月額費用 0円
ビジネスプラン	2.78 % Includes: 月額費用 20,000円
エンタープライズプラン	2.59 % Includes: 月額費用 50,000円。Visa/Mastercardは2.59%、それ以外のカードブランドは2.7%
PayPay 物販・サービス	3.5 %
PayPay デジタルコンテンツ	9.0 %
Seed	2.78 % Includes: 月額費用 0 円、1年間
Partner	2.78 % Includes: 月額費用 0 円、1年間
Travel	1.5 % Includes: 月額費用 0 円

All 9 plans, limits and sources →

Rate limits

Token zone (pk): 10 rps live / 2 rps test requests per second
Payment zone: 14 rps live / 2 rps test requests per second
Secret-key zone (sk): 30 rps live / 2 rps test requests per second

Compiled by API Evangelist, not yet checked against PAY.JP's documentation. Rate-limit details →

Billed by: カード決済手数料 · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Payjp Plans Pricing

9 plans

PLANS

Payjp Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Payjp Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

PAY.JP

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Payjp Finops

FINOPS

Event Specifications 1

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

Payjp Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

PAY.JP API Rules

46 rules · 44 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 15

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.

Payjp 3D Secure Api Phrasing Overlay

6 actions · phrasing · payjp-3d-secure-api-openapi.yml

GENERATED

Payjp Account Api Phrasing Overlay

2 actions · phrasing · payjp-account-api-openapi.yml

GENERATED

Payjp Balances Api Phrasing Overlay

3 actions · phrasing · payjp-balances-api-openapi.yml

GENERATED

Payjp Cards Api Phrasing Overlay

6 actions · phrasing · payjp-cards-api-openapi.yml

GENERATED

Payjp Charges Api Phrasing Overlay

9 actions · phrasing · payjp-charges-api-openapi.yml

GENERATED

Payjp Customers Api Phrasing Overlay

6 actions · phrasing · payjp-customers-api-openapi.yml

GENERATED

Payjp Events Api Phrasing Overlay

3 actions · phrasing · payjp-events-api-openapi.yml

GENERATED

Payjp Openapi Overlay

3 actions · update · payjp-openapi.yml

DERIVED

Payjp Plans Api Phrasing Overlay

6 actions · phrasing · payjp-plans-api-openapi.yml

GENERATED

Payjp Platform Api Phrasing Overlay

8 actions · phrasing · payjp-platform-api-openapi.yml

GENERATED

Payjp Statements Api Phrasing Overlay

4 actions · phrasing · payjp-statements-api-openapi.yml

GENERATED

Payjp Subscriptions Api Phrasing Overlay

9 actions · phrasing · payjp-subscriptions-api-openapi.yml

GENERATED

Payjp Terms Api Phrasing Overlay

3 actions · phrasing · payjp-terms-api-openapi.yml

GENERATED

Payjp Tokens Api Phrasing Overlay

4 actions · phrasing · payjp-tokens-api-openapi.yml

GENERATED

Payjp Transfers Api Phrasing Overlay

4 actions · phrasing · payjp-transfers-api-openapi.yml

GENERATED

Scroll for all 15

Security Posture 4

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

Payjp Authentication

http · 2 schemes

SECURITY

Payjp Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Payjp Vulnerability Disclosure

security.txt · contact published

SECURITY

Payjp Trust Center

PCI DSS

SECURITY

Agentic Access 1

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

Payjp Agentic Access

59 operations · 30 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Webhooks

DataModel

Components

Lifecycle

Scroll for all 7

Build 6

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

Packages

SDKs

DeclineCodes

Postman

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

TrustCenter

TrustCenter

Compliance

Compliance

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

StatusPage

Deprecation

ChangeLog

Support

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: payjp
url: https://raw.githubusercontent.com/api-evangelist/payjp/refs/heads/main/apis.yml
name: PAY.JP
kind: company
description: PAY.JP is an online payment service operated by PAY, Inc. (PAY株式会社) in Japan. Its Stripe-style REST API lets
  merchants create charges, tokenize cards, manage customers, run subscriptions (定期課金), and settle transfers (入金) in Japanese
  yen, with a Platform API (beta) for marketplace/multi-tenant payouts.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/payjp.png
tags:
- Payments
- Fintech
- Japan
- Credit Cards
- Subscription
- Tokenization
tags_raw:
- Payments
- FinTech
- Japan
- Credit Cards
- Subscriptions
- Tokenization
created: '2026-07-17'
modified: '2026-07-18'
specificationVersion: '0.23'
apis:
- aid: payjp:payjp-3d-secure-api
  name: PAY.JP 3D Secure API
  description: The 3D Secure API from PAY.JP — 4 operation(s) for 3d secure.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - 3D Secure
  properties:
  - type: OpenAPI
    url: openapi/payjp-3d-secure-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-account-api
  name: PAY.JP Account API
  description: The Account API from PAY.JP — 1 operation(s) for account.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/payjp-account-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-balances-api
  name: PAY.JP Balances API
  description: The Balances API from PAY.JP — 2 operation(s) for balances.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Balances
  properties:
  - type: OpenAPI
    url: openapi/payjp-balances-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-cards-api
  name: PAY.JP Cards API
  description: The Cards API from PAY.JP — 2 operation(s) for cards.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Cards
  properties:
  - type: OpenAPI
    url: openapi/payjp-cards-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-charges-api
  name: PAY.JP Charges API
  description: The Charges API from PAY.JP — 6 operation(s) for charges.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Charges
  properties:
  - type: OpenAPI
    url: openapi/payjp-charges-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-customers-api
  name: PAY.JP Customers API
  description: The Customers API from PAY.JP — 2 operation(s) for customers.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/payjp-customers-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-events-api
  name: PAY.JP Events API
  description: The Events API from PAY.JP — 2 operation(s) for events.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/payjp-events-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-plans-api
  name: PAY.JP Plans API
  description: The Plans API from PAY.JP — 2 operation(s) for plans.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Plans
  properties:
  - type: OpenAPI
    url: openapi/payjp-plans-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-platform-api
  name: PAY.JP Platform API
  description: The Platform API from PAY.JP — 4 operation(s) for platform.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Platform
  properties:
  - type: OpenAPI
    url: openapi/payjp-platform-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-statements-api
  name: PAY.JP Statements API
  description: The Statements API from PAY.JP — 3 operation(s) for statements.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Statements
  properties:
  - type: OpenAPI
    url: openapi/payjp-statements-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-subscriptions-api
  name: PAY.JP Subscriptions API
  description: The Subscriptions API from PAY.JP — 5 operation(s) for subscriptions.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Subscription
  tags_raw:
  - Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/payjp-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-terms-api
  name: PAY.JP Terms API
  description: The Terms API from PAY.JP — 2 operation(s) for terms.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Terms
  properties:
  - type: OpenAPI
    url: openapi/payjp-terms-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-tokens-api
  name: PAY.JP Tokens API
  description: The Tokens API from PAY.JP — 3 operation(s) for tokens.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/payjp-tokens-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
- aid: payjp:payjp-transfers-api
  name: PAY.JP Transfers API
  description: The Transfers API from PAY.JP — 3 operation(s) for transfers.
  humanURL: https://docs.pay.jp/v1/api/
  baseURL: https://api.pay.jp/v1
  tags:
  - Transfers
  properties:
  - type: OpenAPI
    url: openapi/payjp-transfers-api-openapi.yml
  - type: Documentation
    url: https://pay.jp/docs/charge
  - type: APIReference
    url: https://docs.pay.jp/v1/api/
  - type: Documentation
    url: https://docs.pay.jp/v1/customer
  - type: Documentation
    url: https://docs.pay.jp/v1/subscription
  - type: Documentation
    url: https://pay.jp/docs/platform-payment
common:
- type: CapabilityMap
  url: capabilities/payjp-capability-edges.yml
  name: PAY.JP Business Capability Map
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/payjp/overview
- type: AgenticAccess
  url: agentic-access/payjp-agentic-access.yml
- type: TrustCenter
  url: security/payjp-trust-center.yml
- type: Compliance
  url: https://pay.jp/security
- type: VulnerabilityDisclosure
  url: security/payjp-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/payjp-domain-security.yml
- type: Authentication
  url: authentication/payjp-authentication.yml
- type: Conventions
  url: conventions/payjp-conventions.yml
- type: Packages
  url: packages/payjp-packages.yml
- type: SDKs
  url: packages/payjp-packages.yml
- type: X-MCPServerCandidate
  url: mcp/payjp-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: LLMsTxt
  url: llms/payjp-llms.txt
- type: Overlay
  url: overlays/payjp-openapi-overlay.yaml
- type: Conformance
  url: conformance/payjp-conformance.yml
- type: ErrorCatalog
  url: errors/payjp-error-codes.yml
- type: DeclineCodes
  url: errors/payjp-decline-codes.yml
- type: Webhooks
  url: asyncapi/payjp-webhooks.yml
- type: Sandbox
  url: sandbox/payjp-sandbox.yml
- type: DataModel
  url: data-model/payjp-data-model.yml
- type: Components
  url: components/payjp-components.yml
- type: Lifecycle
  url: lifecycle/payjp-lifecycle.yml
- type: StatusPage
  url: https://status.pay.jp
- type: Deprecation
  url: https://pay.jp/info
- type: ChangeLog
  url: changelog/payjp-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Postman
  url: collections/payjp.postman_collection.json
- type: GitHubOrganization
  url: https://github.com/payjp
- type: Website
  url: https://pay.jp/
- type: DeveloperPortal
  url: https://docs.pay.jp/
- type: Documentation
  url: https://docs.pay.jp/v1/
- type: GettingStarted
  url: https://docs.pay.jp/v1/started
- type: Support
  url: https://help.pay.jp/ja
- type: Pricing
  url: https://pay.jp/plan
- type: SignUp
  url: https://console.pay.jp/d/signup
- type: Login
  url: https://console.pay.jp/d/login
- type: TermsOfService
  url: https://pay.jp/legal/tos
- type: PrivacyPolicy
  url: https://pay.co.jp/privacy
- type: Plans
  url: plans/payjp-plans-pricing.yml
- type: RateLimits
  url: rate-limits/payjp-rate-limits.yml
- type: FinOps
  url: finops/payjp-finops.yml
- url: https://pay.jp/info
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

PAY.JP API — frequently asked questions

Does PAY.JP have an API?

Yes. APIs.io lists 14 APIs from PAY.JP, including PAY.JP 3D Secure API, PAY.JP Account API and PAY.JP Balances API, and 11 more.

Is there an OpenAPI specification for the PAY.JP API?

Yes. APIs.io indexes 14 OpenAPI specifications for PAY.JP, each linked for download from this page.

How do I authenticate with the PAY.JP API?

PAY.JP uses bearer-token authentication (http · 2 schemes). The details are profiled on APIs.io as Payjp Authentication.

How much does the PAY.JP API cost?

PAY.JP publishes its prices; its スタンダードプラン plan is 3.3 % as of 2026-10-28. APIs.io lists 9 pricing plans for PAY.JP, with each plan's price, limits and inclusions under Pricing on this page.

Is the PAY.JP API ready for AI agents?

PAY.JP has a Kin Score of 71.8 out of 100 (exemplar) and an Agent Readiness score of 31.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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/payjp"

All providers

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

Every operation they expose

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

How their score was established

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

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.