Toss Payments

Toss Payments is a South Korean payment gateway (PG) operated by Viva Republica, the company behind the Toss super-app. Its REST API lets merchants accept and manage online payments across cards, Korean easy-pay wallets (Toss Pay, KakaoPay, Naver Pay), virtual accounts, bank transfer, and mobile-phone billing. The Core API (base https://api.tosspayments.com) covers payment confirmation and cancellation, recurring billing keys, virtual account issuance, cash receipts, transaction and settlement queries, and seller payouts, with asynchronous results delivered by webhooks. Authentication is HTTP Basic using a secret API key.

Toss Payments publishes 7 APIs on the APIs.io network, including Billing API, Cash Receipts API, Payments API, and 4 more. Tagged areas include Payments, Payment Gateway, South Korea, Cards, and Easy Pay.

Toss Payments’ developer surface includes authentication, documentation, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.7/100 thin ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Payments Payment Gateway South Korea CardsEasy PayVirtual Account Billing Checkout Fintech

Kin Score

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

Composite quality — 36.7/100 · thin

Contract Quality 10.6 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 5.9 / 15

Operational Transparency 3.1 / 10

Contract Governance 0.0 / 9

Discoverability 5.1 / 8

Regulatory Posture 2.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 0 / 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 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/.

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/toss-payments: 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 8

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

Toss Payments Brandpay API

Brandpay is Toss Payments' embeddable in-merchant easy-pay wallet, letting customers register payment methods once and reuse them. Method and customer status changes are pushed ...

Toss Payments Billing API

Recurring (automatic) payments via billing keys.

Toss Payments Cash Receipts API

Korean cash receipt (현금영수증) issuance and cancellation.

Toss Payments Payments API

Confirm, retrieve, and cancel payments.

Toss Payments Payouts API

Marketplace balance and seller payouts (v2).

Toss Payments Settlements API

Settlement queries and manual settlement requests.

Toss Payments Transactions API

Transaction ledger queries.

Toss Payments Virtual Accounts API

Per-order virtual bank account issuance.

Scroll for all 8

Open Collections 9

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

API Collection

OPEN COLLECTION

Toss Payments Core Billing API

OPEN COLLECTION

Toss Payments Core Billing Cash Receipts API

OPEN COLLECTION

Toss Core Billing Payments API

OPEN COLLECTION

Toss Payments Core Billing Payouts API

OPEN COLLECTION

Toss Payments Core Billing Settlements API

OPEN COLLECTION

Toss Payments Core Billing Transactions API

OPEN COLLECTION

Toss Payments Core Billing Virtual Accounts API

OPEN COLLECTION

Toss Payments Core API

OPEN COLLECTION

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Toss Payments Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Toss Payments Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Toss Payments Finops

FINOPS

Security Posture 2

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

Toss Payments Authentication

http · 1 scheme

SECURITY

Toss Payments Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Toss Payments Agentic Access

17 operations · 11 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: toss-payments
url: https://raw.githubusercontent.com/api-evangelist/toss-payments/refs/heads/main/apis.yml
name: Toss Payments
kind: company
description: Toss Payments is a South Korean payment gateway (PG) operated by Viva Republica, the company behind the Toss
  super-app. Its REST API lets merchants accept and manage online payments across cards, Korean easy-pay wallets (Toss Pay,
  KakaoPay, Naver Pay), virtual accounts, bank transfer, and mobile-phone billing. The Core API (base https://api.tosspayments.com)
  covers payment confirmation and cancellation, recurring billing keys, virtual account issuance, cash receipts, transaction
  and settlement queries, and seller payouts, with asynchronous results delivered by webhooks. Authentication is HTTP Basic
  using a secret API key.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/toss-payments.png
tags:
- Payments
- Payment Gateway
- South Korea
- Cards
- Easy Pay
- Virtual Account
- Billing
- Checkout
- Fintech
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.23'
apis:
- aid: toss-payments:toss-payments-brandpay-api
  name: Toss Payments Brandpay API
  tags:
  - Brandpay
  - Easy Pay
  - Wallets
  tags_raw:
  - Brandpay
  - Easy Pay
  - Wallet
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.tosspayments.com/reference/brandpay
  baseURL: https://api.tosspayments.com
  properties:
  - url: https://docs.tosspayments.com/reference/brandpay
    type: Documentation
  description: Brandpay is Toss Payments' embeddable in-merchant easy-pay wallet, letting customers register payment methods
    once and reuse them. Method and customer status changes are pushed via the METHOD_UPDATED and CUSTOMER_STATUS_CHANGED
    webhooks. (Documented product; individual Brandpay endpoints are not modeled in the OpenAPI in this entry.)
- aid: toss-payments:toss-payments-billing-api
  name: Toss Payments Billing API
  description: Recurring (automatic) payments via billing keys.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-billing-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-cash-receipts-api
  name: Toss Payments Cash Receipts API
  description: Korean cash receipt (현금영수증) issuance and cancellation.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Cash Receipts
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-cash-receipts-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-payments-api
  name: Toss Payments Payments API
  description: Confirm, retrieve, and cancel payments.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-payments-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-payouts-api
  name: Toss Payments Payouts API
  description: Marketplace balance and seller payouts (v2).
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Payouts
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-payouts-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-settlements-api
  name: Toss Payments Settlements API
  description: Settlement queries and manual settlement requests.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Settlement
  tags_raw:
  - Settlements
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-settlements-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-transactions-api
  name: Toss Payments Transactions API
  description: Transaction ledger queries.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-transactions-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
- aid: toss-payments:toss-payments-virtual-accounts-api
  name: Toss Payments Virtual Accounts API
  description: Per-order virtual bank account issuance.
  humanURL: https://docs.tosspayments.com/reference
  baseURL: https://api.tosspayments.com
  tags:
  - Virtual Accounts
  properties:
  - type: OpenAPI
    url: openapi/toss-payments-virtual-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: APIReference
    url: https://docs.tosspayments.com/reference
  - type: PostmanCollection
    url: collections/toss-payments.postman_collection.json
  - type: OpenCollection
    url: collections/toss-payments.opencollection.json
  - type: Documentation
    url: https://docs.tosspayments.com/guides/v2/billing/integration-api
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
common:
- type: AgenticAccess
  url: agentic-access/toss-payments-agentic-access.yml
- type: DomainSecurity
  url: security/toss-payments-domain-security.yml
- type: Authentication
  url: authentication/toss-payments-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/tosspayments
- type: Website
  url: https://www.tosspayments.com
- type: Documentation
  url: https://docs.tosspayments.com/en
- type: Plans
  url: plans/toss-payments-plans-pricing.yml
- type: RateLimits
  url: rate-limits/toss-payments-rate-limits.yml
- type: FinOps
  url: finops/toss-payments-finops.yml
- url: https://www.tosspayments.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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