# PortOne REST API (V1, legacy Iamport)

**Canonical:** https://apis.io/apis/portone/portone-rest-api-v1/  
**Provider:** PortOne — https://apis.io/providers/portone/  
**Base URL:** https://api.iamport.kr  
**Documentation:** https://developers.portone.io/api/rest-v1

PortOne REST API (V1, legacy Iamport) is one of 20 APIs that [PortOne](https://apis.io/providers/portone/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Payments, Legacy, and Iamport. The published artifact set on APIs.io includes API documentation and an API reference.

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 payments, virtual accounts, and identity verification. Maintained for existing integrations; new integrations are directed to V2.

## Machine-readable artifacts (3)

- **Documentation** — https://developers.portone.io/api/rest-v1
- **APIReference** — https://developers.portone.io/api/rest-v1/payment
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/portone/refs/heads/main/apis.yml

## Other PortOne APIs (12)

- [PortOne B2b API](https://apis.io/apis/portone/portone-b2b-api/)
- [PortOne Banks API](https://apis.io/apis/portone/portone-banks-api/)
- [PortOne Billing Keys API](https://apis.io/apis/portone/portone-billing-keys-api/)
- [PortOne Cash Receipts API](https://apis.io/apis/portone/portone-cash-receipts-api/)
- [PortOne Checkout Profiles API](https://apis.io/apis/portone/portone-checkout-profiles-api/)
- [PortOne Identity Verifications API](https://apis.io/apis/portone/portone-identity-verifications-api/)
- [PortOne Kakaopay API](https://apis.io/apis/portone/portone-kakaopay-api/)
- [PortOne Login API](https://apis.io/apis/portone/portone-login-api/)
- [PortOne Payment Events By Cursor API](https://apis.io/apis/portone/portone-payment-events-by-cursor-api/)
- [PortOne Payment Gateways API](https://apis.io/apis/portone/portone-payment-gateways-api/)
- [PortOne Payment Reconciliations API](https://apis.io/apis/portone/portone-payment-reconciliations-api/)
- [PortOne Payment Schedules API](https://apis.io/apis/portone/portone-payment-schedules-api/)

## Tags

Payments, Legacy, Iamport

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/portone/portone-rest-api-v1/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/portone/.