PortOne
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.
PortOne publishes 19 APIs on the APIs.io network, including B2b API, Banks API, Billing Keys API, and 16 more. Tagged areas include Payments, Payment Orchestration, Fintech, Korea, and Billing.
The PortOne catalog on APIs.io includes 1 event-driven AsyncAPI specification.
PortOne’s developer surface includes authentication, documentation, engineering blog, getting-started guide, support, signup flow, CLI, and 31 more developer resources.
Kin Score
APIs 20
Individual APIs this provider publishes, each with its own machine-readable definition.
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.
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Postman Collections 19
Ready-to-run Postman collections for exercising this provider's APIs.
PortOne B2b API
POSTMANPortOne B2b Banks API
POSTMANPortOne B2b Billing Keys API
POSTMANPortOne B2b Kakaopay API
POSTMANPortOne B2b Login API
POSTMANPortOne B2b Payments API
POSTMANPortOne B2b Paymentwall API
POSTMANPortOne B2b Platform API
POSTMANPortOne B2b Promotions API
POSTMANPortOne B2b Token API
POSTMANScroll for all 19
Open Collections 20
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONPortOne B2b API
OPEN COLLECTIONPortOne B2b Banks API
OPEN COLLECTIONPortOne B2b Billing Keys API
OPEN COLLECTIONPortOne B2b Cash Receipts API
OPEN COLLECTIONPortOne B2b Checkout Profiles API
OPEN COLLECTIONPortOne B2b Identity Verifications API
OPEN COLLECTIONPortOne B2b Kakaopay API
OPEN COLLECTIONPortOne B2b Login API
OPEN COLLECTIONPortOne B2b Payment Events By Cursor API
OPEN COLLECTIONPortOne B2b Payment Gateways API
OPEN COLLECTIONPortOne B2b Payment Reconciliations API
OPEN COLLECTIONPortOne B2b Payment Schedules API
OPEN COLLECTIONPortOne B2b Payment Sessions API
OPEN COLLECTIONPortOne B2b Payments API
OPEN COLLECTIONPortOne B2b Payments By Cursor API
OPEN COLLECTIONPortOne B2b Paymentwall API
OPEN COLLECTIONPortOne B2b Platform API
OPEN COLLECTIONPortOne B2b Promotions API
OPEN COLLECTIONPortOne B2b Token API
OPEN COLLECTIONScroll for all 20
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
portone-mcp.yml
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Portone Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Portone Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Portone Webhooks
ASYNCAPISecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll for all 7
Build 6
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 5
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