aid: portone
url: https://raw.githubusercontent.com/api-evangelist/portone/refs/heads/main/apis.yml
name: PortOne
kind: company
description: 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.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Payments
- Payment Orchestration
- Fintech
- Korea
- Billing
- Identity Verification
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.19'
apis:
- aid: portone:portone-payments-api
  name: PortOne Payments API (V2)
  tags:
  - Payments
  - Cancellation
  - Escrow
  - Virtual Account
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/payment
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/payment
    type: Documentation
  - url: https://developers.portone.io/api/rest-v2
    type: APIReference
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  - url: collections/portone.postman_collection.json
    type: PostmanCollection
  description: Core payment lifecycle over api.portone.io — single/bulk payment lookup,
    manual (keyed) payments, capture, cancellation, escrow, virtual-account close,
    and cash-receipt issuance, keyed by merchant-supplied paymentId.
- aid: portone:portone-billing-keys-api
  name: PortOne Billing Keys API (V2)
  tags:
  - Billing
  - Recurring
  - Tokenization
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/payment.billingKey
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/payment.billingKey
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  - url: collections/portone.postman_collection.json
    type: PostmanCollection
  description: Issue, look up, and delete billing keys and charge non-authenticated
    (card-on-file) payments with them for subscriptions and recurring billing.
- aid: portone:portone-payment-schedules-api
  name: PortOne Payment Schedule API (V2)
  tags:
  - Scheduling
  - Recurring
  - Reservations
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/paymentSchedule
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/paymentSchedule
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Reserve future billing-key charges and query or revoke scheduled payments
    for subscription and installment workflows.
- aid: portone:portone-identity-verification-api
  name: PortOne Identity Verification API (V2)
  tags:
  - Identity Verification
  - KYC
  - Bon-in Injung
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/identityVerification
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/identityVerification
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Korean identity verification (bon-in injung / 본인인증) — send and confirm
    verification, and retrieve verified holder data via carrier and credit-authority
    channels.
- aid: portone:portone-cash-receipts-api
  name: PortOne Cash Receipts API (V2)
  tags:
  - Cash Receipt
  - Tax
  - Hyeongeum Yeongsujeung
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/cashReceipt
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/cashReceipt
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Issue, cancel, and look up Korean cash receipts (hyeongeum yeongsujeung
    / 현금영수증) required for tax-deductible cash and transfer settlements.
- aid: portone:portone-b2b-tax-invoice-api
  name: PortOne B2B Tax Invoice API (V2)
  tags:
  - B2B
  - Tax Invoice
  - Segyegyesanseo
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/b2b
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/b2b
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Electronic tax invoice (segyegyesanseo / 세금계산서) issuance, cancellation,
    bulk operations, counterparty (member company) lookup, and NTS reporting for B2B
    settlement.
- aid: portone:portone-platform-partner-settlement-api
  name: PortOne Platform Partner Settlement API (V2)
  tags:
  - Platform
  - Settlement
  - Marketplace
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/platform
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/platform
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Marketplace/platform settlement engine — manage partners, contracts,
    policies, transfers, order-sheets, and payouts for splitting funds across sellers.
- aid: portone:portone-payment-sessions-checkout-api
  name: PortOne Payment Sessions & Checkout API (V2)
  tags:
  - Checkout
  - Sessions
  - Hosted Payment
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2/paymentSession
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2/paymentSession
    type: Documentation
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Create and manage server-side payment sessions and checkout profiles
    that back PortOne's hosted/SDK checkout experience.
- aid: portone:portone-payment-reconciliation-api
  name: PortOne Payment Reconciliation API (V2)
  tags:
  - Reconciliation
  - Reporting
  - Ledger
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v2
  baseURL: https://api.portone.io
  properties:
  - url: https://developers.portone.io/api/rest-v2
    type: APIReference
  - url: openapi/portone-openapi.yml
    type: OpenAPI
  description: Retrieve payment reconciliation rounds and line items for matching PortOne
    transaction records against PSP settlement statements.
- aid: portone:portone-rest-api-v1
  name: PortOne REST API (V1, legacy Iamport)
  tags:
  - Payments
  - Legacy
  - Iamport
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.portone.io/api/rest-v1
  baseURL: https://api.iamport.kr
  properties:
  - url: https://developers.portone.io/api/rest-v1
    type: Documentation
  - url: https://developers.portone.io/api/rest-v1/payment
    type: APIReference
  description: 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.
common:
- type: AgenticAccess
  url: agentic-access/portone-agentic-access.yml
- type: TrustCenter
  url: security/portone-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/portone-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/portone-domain-security.yml
- type: Authentication
  url: authentication/portone-authentication.yml
- type: GitHubOrganization
  url: https://github.com/portone-io
- type: LinkedIn
  url: https://www.linkedin.com/company/portoneglobal
- type: Website
  url: https://portone.io/
- type: Documentation
  url: https://developers.portone.io/
- type: Plans
  url: plans/portone-plans-pricing.yml
- type: RateLimits
  url: rate-limits/portone-rate-limits.yml
- type: FinOps
  url: finops/portone-finops.yml
- url: https://developers.portone.io/opi/ko/support/release-note
  type: Blog
- type: DeveloperPortal
  url: https://developers.portone.io/
- type: GettingStarted
  url: https://developers.portone.io/opi/ko/quick-guide/payment
- type: Support
  url: https://developers.portone.io/opi/ko/support/contact
- type: SignUp
  url: https://admin.portone.io/
- type: TermsOfService
  url: https://terms.portone.io/
- type: Packages
  url: packages/portone-packages.yml
- type: SDKs
  url: packages/portone-packages.yml
- type: CLI
  url: cli/portone-cli.yml
- type: MCPServer
  url: mcp/portone-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/portone-llms.txt
- type: Overlay
  url: overlays/portone-overlay.yaml
- type: Conventions
  url: conventions/portone-conventions.yml
- type: Idempotency
  url: conventions/portone-conventions.yml
- type: ErrorCatalog
  url: errors/portone-problem-types.yml
- type: DeclineCodes
  url: errors/portone-decline-codes.yml
- type: Conformance
  url: conformance/portone-conformance.yml
- type: DataModel
  url: data-model/portone-data-model.yml
- type: Sandbox
  url: sandbox/portone-sandbox.yml
- type: Lifecycle
  url: lifecycle/portone-lifecycle.yml
- type: StatusPage
  url: https://iamport.github.io/service-status/
- type: Deprecation
  url: https://developers.portone.io/api/backward-compatibility
- type: ChangeLog
  url: changelog/portone-changelog.yml
- type: Webhooks
  url: asyncapi/portone-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com