Toss website screenshot

Toss

Toss is a Korean financial super-app operated by Viva Republica that provides REST APIs for payments, banking, credit scoring, identity verification, and financial services across the Toss ecosystem. The Toss Payments platform supports card payments, virtual accounts, mobile phone billing, bank transfers, and digital wallets including TossPay, KakaoPay, NaverPay, and SamsungPay, serving over 30 million registered users across South Korea.

Toss publishes 1 API on the APIs.io network: Payments API. Tagged areas include Payments, Fintech, Banking, Korea, and Digital Wallet.

Toss’ developer surface includes documentation, engineering blog, pricing, and 10 more developer resources.

25.7/100 emerging ▬ flat Agent 16/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessPaid
4 APIs
PaymentsFintechBankingKoreaDigital WalletCredit ScoringIdentity VerificationFinancial-ServicesSuper App

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/toss: 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 4

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

Toss Payments API

REST API for processing payments, authorizations, cancellations, and refunds through the Toss Payments platform. Supports card, virtual account, mobile phone, bank transfer, and...

Toss Pay API

Legacy REST API for Toss Pay payment transactions, merchant approval flows, refunds, and payment status checks. Operates on the pay.toss.im domain with API key authentication.

Toss Payments Webhooks

Event-driven webhook system for receiving real-time notifications on payment status changes, virtual account deposits, cancellations, BrandPay method updates, and marketplace pa...

Toss Payments Payouts API

API for marketplace and platform operators to disburse funds to registered sellers. Supports seller registration, payout requests, and event-driven payout status updates via web...

Pricing Plans 1

Published pricing tiers and plan structures.

Toss Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Toss Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Toss Finops

FINOPS

Security Posture 1

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

Toss Domain Security

TLSv1.2 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: toss
name: Toss
description: Toss is a Korean financial super-app operated by Viva Republica that provides REST APIs for payments, banking,
  credit scoring, identity verification, and financial services across the Toss ecosystem. The Toss Payments platform supports
  card payments, virtual accounts, mobile phone billing, bank transfers, and digital wallets including TossPay, KakaoPay,
  NaverPay, and SamsungPay, serving over 30 million registered users across South Korea.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/toss.png
url: https://raw.githubusercontent.com/api-evangelist/toss/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- Payments
- Fintech
- Banking
- Korea
- Digital Wallet
- Credit Scoring
- Identity Verification
- Financial-Services
- Super App
tags_raw:
- Payments
- Fintech
- Banking
- Korea
- Digital Wallet
- Credit Scoring
- Identity Verification
- Financial Services
- Super App
apis:
- name: Toss Payments API
  description: REST API for processing payments, authorizations, cancellations, and refunds through the Toss Payments platform.
    Supports card, virtual account, mobile phone, bank transfer, and digital wallet payment methods for Korean and international
    merchants.
  humanURL: https://docs.tosspayments.com/en/api-guide
  baseURL: https://api.tosspayments.com
  tags:
  - Payments
  - Card Payments
  - Virtual Accounts
  - Refunds
  - Korea
  properties:
  - type: Documentation
    url: https://docs.tosspayments.com/en/api-guide
  - type: OpenAPI
    url: https://docs.tosspayments.com/en/api-guide
  contact:
  - FN: Toss Payments Support
    email: support@tosspayments.com
    url: https://docs.tosspayments.com/en
- name: Toss Pay API
  description: Legacy REST API for Toss Pay payment transactions, merchant approval flows, refunds, and payment status checks.
    Operates on the pay.toss.im domain with API key authentication.
  humanURL: https://tossdev.github.io/api.html
  baseURL: https://pay.toss.im/api/v2
  tags:
  - Payments
  - Digital Wallet
  - Korea
  properties:
  - type: Documentation
    url: https://tossdev.github.io/api.html
  contact:
  - FN: Toss Developer Support
    url: https://toss.im
- name: Toss Payments Webhooks
  description: Event-driven webhook system for receiving real-time notifications on payment status changes, virtual account
    deposits, cancellations, BrandPay method updates, and marketplace payout results.
  humanURL: https://docs.tosspayments.com/en/webhooks
  baseURL: https://api.tosspayments.com
  tags:
  - Webhook
  - Payments
  - Event
  tags_raw:
  - Webhooks
  - Payments
  - Events
  properties:
  - type: Documentation
    url: https://docs.tosspayments.com/en/webhooks
- name: Toss Payments Payouts API
  description: API for marketplace and platform operators to disburse funds to registered sellers. Supports seller registration,
    payout requests, and event-driven payout status updates via webhooks.
  humanURL: https://docs.tosspayments.com/en/integration-payouts
  baseURL: https://api.tosspayments.com
  tags:
  - Payouts
  - Marketplace
  - Sellers
  - Korea
  properties:
  - type: Documentation
    url: https://docs.tosspayments.com/en/integration-payouts
common:
- type: DomainSecurity
  url: security/toss-domain-security.yml
- type: Website
  url: https://toss.im
- type: Documentation
  url: https://docs.tosspayments.com/en
- type: GitHubOrg
  url: https://github.com/tosspayments
- type: GitHubOrg
  url: https://github.com/toss
- type: LinkedIn
  url: https://www.linkedin.com/company/viva-republica
- type: Blog
  url: https://toss.tech
- type: Pricing
  url: https://docs.tosspayments.com/en/overview
- type: StatusPage
  url: https://status.tosspayments.com
- type: X
  url: https://x.com/toss_im
- type: Plans
  url: plans/toss-plans-pricing.yml
- type: RateLimits
  url: rate-limits/toss-rate-limits.yml
- type: FinOps
  url: finops/toss-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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