Japan & Korea × Accounting & Finance Operations

Accounting & Finance Operations in Japan & Korea

11 accounting & finance operations providers across Japan & Korea, publishing 7 APIs.

11 providers 7 published APIs 58 indexed documents

Accounting & Finance Operations across Japan & Korea — 11 providers on the APIs.io network sit in both cohorts, and between them they publish 7 indexed APIs.

7 of the 11 publish at least one machine-readable API; 4 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.

By Kin Score band: 4 thin, 2 developing, 2 emerging, 2 minimal, and 1 strong.

Leading by rating: PortOne, Alphaus, Payple, freee, LayerX, Toss Payments, and 5 more.

Region membership is derived from three explicit signals — a provider tag, a provider-name pattern, or a stated headquarters in the provider’s own description. This is a map of stated headquarters, not of markets served.

Providers (11)

Provider Description APIs Rating
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... 1 strong
Alphaus Alphaus is a Tokyo-based cloud FinOps company (No. 1 in Japan) whose platform helps enterprises, managed service providers, and cloud resellers manage and optimize multi-cloud s... 1 developing
Payple Payple (페이플) is a South Korean payment gateway (PG) and fintech provider that lets merchants accept online payments across domestic and international cards, real-time bank-accou... 1 developing
freee freee K.K. (freee株式会社) is a Japanese cloud business-management SaaS company. Its core products are freee Accounting (会計freee) - cloud accounting and bookkeeping - and freee HR &... 1 thin
LayerX LayerX Inc. (株式会社LayerX) is a Tokyo-based enterprise software company founded 1 August 2018, operating as a compound startup across four business lines: Bakuraku (バクラク), an AI b... 1 thin
Toss Payments Toss Payments is a South Korean payment gateway (PG) operated by Viva Republica, the company behind the Toss super-app. Its REST API lets merchants accept and manage online paym... 1 thin
MakeLeaps MakeLeaps is a cloud invoicing, quoting, and payment-management SaaS operated by Meikuriipusu K.K., a Ricoh Group company headquartered in Meguro-ku, Tokyo. The platform lets bu... 1 thin
Leaner Technologies Leaner Technologies (株式会社Leaner Technologies) is a Tokyo-based B2B SaaS company founded on February 22, 2019 by CEO Yusuke Ohira, operating under the mission "調達のスタンダードを刷新し続ける" ... 0 emerging
Aerial Partners Aerial Partners (株式会社Aerial Partners, Roppongi, Minato-ku, Tokyo) builds digital-asset accounting, tax and data-management software for the Japanese market. Its current product ... 0 emerging
Finda Finda (핀다) is a South Korean fintech company founded in 2015 and headquartered in Seoul that operates a licensed online loan-comparison and financial-product marketplace. Throug... 0 minimal
Habitto Habitto is a Tokyo-based fintech company building a mobile financial wellness app for the Japanese market under the banner お金の新習慣 ("new money habits"). The app pairs a high-yiel... 0 minimal

Indexed API documents (58)

Two numbers, both real: these providers publish 7 APIs as their own documents, which the catalog indexes split one-per-resource into 58 documents.

PortOne REST API (V1, legacy Iamport)

PortOne
Legacy V1 (Iamport) REST API on api.iamport.kr — token-authenticated (POST /users/getToken with imp_key/imp_secret) payment lookup, cance...

PortOne Banks API

PortOne
The Banks API from PortOne — 1 operation(s) for banks.

PortOne Billing Keys API

PortOne
The Billing Keys API from PortOne — 4 operation(s) for billing keys.

PortOne Cash Receipts API

PortOne
The Cash Receipts API from PortOne — 1 operation(s) for cash receipts.

PortOne Checkout Profiles API

PortOne
The Checkout Profiles API from PortOne — 1 operation(s) for checkout profiles.

PortOne Identity Verifications API

PortOne
The Identity Verifications API from PortOne — 5 operation(s) for identity verifications.

PortOne Kakaopay API

PortOne
The Kakaopay API from PortOne — 1 operation(s) for kakaopay.

PortOne Login API

PortOne
The Login API from PortOne — 1 operation(s) for login.

PortOne Payment Events By Cursor API

PortOne
The Payment Events By Cursor API from PortOne — 1 operation(s) for payment events by cursor.

PortOne Payment Gateways API

PortOne
The Payment Gateways API from PortOne — 1 operation(s) for payment gateways.

PortOne Payment Reconciliations API

PortOne
The Payment Reconciliations API from PortOne — 2 operation(s) for payment reconciliations.

PortOne Payment Schedules API

PortOne
The Payment Schedules API from PortOne — 2 operation(s) for payment schedules.

PortOne Payment Sessions API

PortOne
The Payment Sessions API from PortOne — 3 operation(s) for payment sessions.

PortOne Payments API

PortOne
The Payments API from PortOne — 18 operation(s) for payments.

PortOne Payments By Cursor API

PortOne
The Payments By Cursor API from PortOne — 1 operation(s) for payments by cursor.

PortOne Paymentwall API

PortOne
The Paymentwall API from PortOne — 1 operation(s) for paymentwall.

PortOne Platform API

PortOne
The Platform API from PortOne — 44 operation(s) for platform.

PortOne Promotions API

PortOne
The Promotions API from PortOne — 1 operation(s) for promotions.

PortOne Token API

PortOne
The Token API from PortOne — 1 operation(s) for token.

PortOne B2 B API

PortOne
The B2 B API from PortOne — 26 operation(s) for b2 b.

Alphaus Admin API

Alphaus
Admin API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Billing API

Alphaus
(BETA) Billing API. Base URL: https://api.alphaus.cloud/m/blue/billing

Alphaus Cost API

Alphaus
Cost API. Base URL: https://api.alphaus.cloud/m/blue/cost

Alphaus Cover API

Alphaus
(BETA) Cover API. Base URL: https://api.alphaus.cloud/m/blue/cover

Alphaus Flags API

Alphaus
(ALPHA) Flag API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Flow API

Alphaus
(ALPHA) Flow API. Base URL: https://api.alphaus.cloud/m/blue/flow

Alphaus GuaranteedCommitments API

Alphaus
(Alpha) GuaranteedCommitments API. Base URL: https://api.alphaus.cloud/m/blue/gc

Alphaus Iam API

Alphaus
(BETA) IAM API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Luster API

Alphaus
(ALPHA) Luster API. Base URL: https://api.alphaus.cloud/m/blue/luster

Alphaus Operations API

Alphaus
(BETA) Long operations API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Organization API

Alphaus
(BETA) Organization API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Preferences API

Alphaus
(BETA) Preferences API. Base URL: https://api.alphaus.cloud/m/blue

Alphaus Pricing API

Alphaus
(BETA) Pricing API. Base URL: https://api.alphaus.cloud/m/blue/pricing

Alphaus Prism API

Alphaus
(Alpha) Prism API. Base URL: https://api.alphaus.cloud/m/blue/prism

Alphaus Vortex API

Alphaus
(Alpha) Vortex API. Base URL: https://api.alphaus.cloud/m/blue/vortex

Payple Payment API

Payple
Payple REST payment API (v2) for card, bank-account, recurring/billing-key, link, verification, and payout (Hub) operations, plus the hos...

freee Account Items API

freee
Accounting account items / chart of accounts (勘定科目).

freee Attendance API

freee
Time clocks (打刻) and work records (勤怠).

freee Companies API

freee
freee companies (事業所) the authenticated user can access.

freee Deals API

freee
Accounting deals / transactions (取引) - income and expense records.

freee Employees API

freee
HR employees (従業員).

freee HR Users API

freee
Authenticated HR user context.

freee Invoices API

freee
Issued invoices and quotations (請求書・見積書).

freee Journals API

freee
Journals (仕訳帳), manual journals, and trial-balance reports.

freee Partners API

freee
Trading partners / counterparties (取引先).

freee Payroll API

freee
Employee payroll statements (給与明細) and bonuses.

freee Taxes API

freee
Tax codes (税区分) available to a company.

freee Wallet Transactions API

freee
Wallet transactions / statement lines (明細) and walletables (口座).

Bakuraku API

LayerX
REST API for the Bakuraku (バクラク) back-office suite. Publicly documented capabilities are retrieval and list-search of applications/reques...

Toss Payments Brandpay API

Toss Payments
Brandpay is Toss Payments' embeddable in-merchant easy-pay wallet, letting customers register payment methods once and reuse them. Method...

Toss Payments Billing API

Toss Payments
Recurring (automatic) payments via billing keys.

Toss Payments Cash Receipts API

Toss Payments
Korean cash receipt (현금영수증) issuance and cancellation.

Toss Payments API

Toss Payments
Confirm, retrieve, and cancel payments.

Toss Payments Payouts API

Toss Payments
Marketplace balance and seller payouts (v2).

Toss Payments Settlements API

Toss Payments
Settlement queries and manual settlement requests.

Toss Payments Transactions API

Toss Payments
Transaction ledger queries.

Toss Payments Virtual Accounts API

Toss Payments
Per-order virtual bank account issuance.

MakeLeaps API

MakeLeaps
REST API for the MakeLeaps cloud invoicing platform. Authenticated with OAuth 2.0 client-credentials against api.makeleaps.com, it expose...

Other industries in Japan & Korea

Artificial Intelligence 40 E-Commerce Platform 29 Data & Analytics 21 Education & EdTech 21 Financial Technology 21 Industrial 17 IoT & Connected Devices 17 Digital Health & Telehealth 16 Healthcare 16 Supply Chain & Procurement 16 Payments & Money Movement 15 Blockchain, Crypto & Web3 14 All of Japan & Korea →

Accounting & Finance Operations elsewhere

Europe 76 North America 71 Latin America 23 DACH (Germany · Austria · Switzerland) 22 United Kingdom & Ireland 22 Middle East 19 India & South Asia 17 Africa 11 Southeast Asia 11 France & Iberia 10 Nordics 10 Greater China 9 All of Accounting & Finance Operations →

This page is the intersection of two independently computed cohorts: Japan & Korea and Accounting & Finance Operations. A provider appears here only when it is already a member of both. Japan & Korea membership is matched on tag, name pattern, stated HQ, so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.

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Tools for regions

6 MCP tools reach this
  • find_regionsBrowse and filter every region in the catalog.
  • get_region_leadersPRO — top-rated providers in this region.
  • cohort_statsPRO — the distribution across the region.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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