# PortOne

**Canonical:** https://apis.io/providers/portone/  
**Website:** https://portone.io/  
**APIs profiled:** 20

PortOne (formerly Iamport) is a Korea-based payment orchestration platform that lets online businesses integrate one API to reach 100+ Korean and global payment methods and PSPs. The V2 REST API (api.portone.io) covers payments, billing keys, scheduled/recurring payments, identity verification, cash receipts, B2B tax invoices, and partner settlement, with the legacy V1 API still served at api.iamport.kr.

## Kin Score — 64.8 / 100 (strong)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 64.8).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 66.8 |
| Governance | 11.5 |
| Operational Transparency | 84.2 |
| Developer Ergonomics | 79.9 |
| Commercial Clarity | 71.1 |

Regulatory layer — **Payments**: 50.0 (matched via tags).

## Agent readiness — 62.4 (agent-native)

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

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (20)

- **PortOne REST API (V1, legacy Iamport)** — Legacy V1 (Iamport) REST API on api.iamport.kr — token-authenticated (POST /users/getToken with imp_key/imp_secret) payment lookup, cancellation, non-authenticated and scheduled...
- **PortOne B2b API** — The B2b API from PortOne — 26 operation(s) for b2b.
- **PortOne Banks API** — The Banks API from PortOne — 1 operation(s) for banks.
- **PortOne Billing Keys API** — The Billing Keys API from PortOne — 4 operation(s) for billing keys.
- **PortOne Cash Receipts API** — The Cash Receipts API from PortOne — 1 operation(s) for cash receipts.
- **PortOne Checkout Profiles API** — The Checkout Profiles API from PortOne — 1 operation(s) for checkout profiles.
- **PortOne Identity Verifications API** — The Identity Verifications API from PortOne — 5 operation(s) for identity verifications.
- **PortOne Kakaopay API** — The Kakaopay API from PortOne — 1 operation(s) for kakaopay.
- **PortOne Login API** — The Login API from PortOne — 1 operation(s) for login.
- **PortOne Payment Events By Cursor API** — The Payment Events By Cursor API from PortOne — 1 operation(s) for payment events by cursor.
- **PortOne Payment Gateways API** — The Payment Gateways API from PortOne — 1 operation(s) for payment gateways.
- **PortOne Payment Reconciliations API** — The Payment Reconciliations API from PortOne — 2 operation(s) for payment reconciliations.
- **PortOne Payment Schedules API** — The Payment Schedules API from PortOne — 2 operation(s) for payment schedules.
- **PortOne Payment Sessions API** — The Payment Sessions API from PortOne — 3 operation(s) for payment sessions.
- **PortOne Payments API** — The Payments API from PortOne — 18 operation(s) for payments.
- **PortOne Payments By Cursor API** — The Payments By Cursor API from PortOne — 1 operation(s) for payments by cursor.
- **PortOne Paymentwall API** — The Paymentwall API from PortOne — 1 operation(s) for paymentwall.
- **PortOne Platform API** — The Platform API from PortOne — 44 operation(s) for platform.
- **PortOne Promotions API** — The Promotions API from PortOne — 1 operation(s) for promotions.
- **PortOne Token API** — The Token API from PortOne — 1 operation(s) for token.

## MCP servers (1)

- **portone-mcp.yml**

## Agentic access (1)

- **Portone Agentic Access** — 147 operations · 89 acting · 34 human-in-the-loop

## Security (4)

- **Portone Authentication** — http · 3 schemes
- **Portone Domain Security** — TLSv1.3 · DMARC
- **Portone Vulnerability Disclosure** — security.txt · contact published
- **Portone Trust Center** — PCI DSS, ISMS

## Plans (1)

- **Portone Plans Pricing**

## Tags

Payments, Payment Orchestration, Fintech, Korea, Billing, Identity Verification

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