Toss Payments

Toss Payments Transactions API

Transaction ledger queries.

Documentation GitHub OpenAPI

Operations 1

GET /v1/transactions Query transactions #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
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.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/toss-payments-transactions-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Toss Payments Core Transactions API
  description: The Toss Payments Core API is a REST interface for accepting and managing online payments in South Korea across cards, easy-pay wallets (Toss Pay, KakaoPay, Naver Pay), virtual accounts, bank transfer, and mobile-phone billing.
  version: '2022-11-16'
  contact:
    name: Toss Payments Developer Center
    url: https://docs.tosspayments.com/en
  termsOfService: https://www.tosspayments.com
servers:
- url: https://api.tosspayments.com
  description: Toss Payments Core API (test and live selected by secret key prefix)
security:
- basicAuth: []
tags:
- name: Transactions
  description: Transaction ledger queries.
paths:
  /v1/transactions:
    get:
      operationId: listTransactions
      tags:
      - Transactions
      summary: Query transactions
      description: Queries the transaction ledger over a date range, with cursor pagination (up to 5000 records per page).
      parameters:
      - name: startDate
        in: query
        required: true
        description: Start datetime (ISO 8601) of the query range.
        schema:
          type: string
          format: date-time
      - name: endDate
        in: query
        required: true
        description: End datetime (ISO 8601) of the query range.
        schema:
          type: string
          format: date-time
      - name: startingAfter
        in: query
        required: false
        description: Cursor - return records after this transactionKey.
        schema:
          type: string
      - name: limit
        in: query
        required: false
        description: Maximum number of records to return (up to 5000).
        schema:
          type: integer
          default: 100
      responses:
        '200':
          description: A list of Transaction objects.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Transaction'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Error:
      type: object
      description: Standard Toss Payments error body.
      properties:
        code:
          type: string
          description: Machine-readable error code (for example INVALID_CARD_EXPIRATION).
        message:
          type: string
          description: Human-readable error message (Korean by default).
    Transaction:
      type: object
      properties:
        transactionKey:
          type: string
        paymentKey:
          type: string
        orderId:
          type: string
        method:
          type: string
        customerKey:
          type: string
        amount:
          type: integer
        transactionAt:
          type: string
          format: date-time
        status:
          type: string
  responses:
    Unauthorized:
      description: Missing or invalid secret key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic authentication. Use your Toss Payments secret key as the username and leave the password empty, then Base64 encode `secretKey:` for the Authorization header. Test keys are prefixed `test_sk_` / `test_gsk_` and live keys `live_sk_` / `live_gsk_`.