# Toss

**Canonical:** https://apis.io/providers/toss/  
**Website:** https://toss.im  
**APIs profiled:** 4

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.

## Kin Score — 26.1 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 26.1).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 28.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

Regulatory layer — **Payments**: 9.4 (matched via tags).

## Agent readiness — 18.4 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid — onboarding: unknown, pricing: paid, trial: no (confidence: medium).

## APIs (4)

- **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...

## Security (1)

- **Toss Domain Security** — TLSv1.2 · DMARC

## Plans (1)

- **Toss Plans Pricing**

## Tags

Payments, Fintech, Banking, Korea, Digital Wallet, Credit Scoring, Identity Verification, Financial-Services, Super App

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/toss/). Scores are computed from the provider's own public artifacts under a published rubric.