> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vin.gs/llms.txt
> Use this file to discover all available pages before exploring further.

# Get v1spendingmerchantstop



## OpenAPI

````yaml https://external.vin.gs/api/openapi.json get /v1/spending/merchants/top
openapi: 3.1.0
info:
  title: Vings External API
  version: 0.1.0
  description: Readonly external API for authenticated Vings financial data.
servers:
  - url: https://external.vin.gs/api
    description: Production
security: []
tags:
  - name: Transactions
    description: Transaction search and recurring payments
  - name: Cashflow
    description: Cashflow summaries
  - name: Spending
    description: Spending aggregates and merchants
  - name: Budgets
    description: Budget categories and summaries
  - name: Banks
    description: Connected bank status
  - name: Portfolio
    description: Portfolio snapshots and history
  - name: Preferences
    description: User preferences
  - name: OAuth
    description: OAuth protected-resource metadata (RFC 9728)
  - name: Health
    description: Liveness and readiness
  - name: User
    description: Authenticated user
  - name: MCP
    description: Model Context Protocol JSON-RPC transport
paths:
  /v1/spending/merchants/top:
    get:
      tags:
        - Spending
      parameters:
        - schema:
            type: string
            example: '2026-01-01'
          required: false
          name: dateFrom
          in: query
        - schema:
            type: string
            example: '2026-01-31'
          required: false
          name: dateTo
          in: query
        - schema:
            type: string
            enum:
              - 1m
              - 3m
              - 6m
              - 1y
              - all
          required: false
          name: timeRange
          in: query
        - schema:
            type: string
          required: false
          name: query
          in: query
        - schema:
            type: string
          required: false
          name: topN
          in: query
      responses:
        '200':
          description: Top merchants by spending
          content:
            application/json:
              schema:
                type: object
                properties:
                  totalExpense:
                    type: object
                    properties:
                      amount_cents:
                        type: number
                      currency:
                        type: string
                    required:
                      - amount_cents
                      - currency
                    description: Total expense amount in user's preferred currency
                  merchants:
                    type: array
                    items:
                      type: object
                      properties:
                        merchant:
                          type: string
                          description: Merchant name (normalized)
                        total:
                          type: object
                          properties:
                            amount_cents:
                              type: number
                            currency:
                              type: string
                          required:
                            - amount_cents
                            - currency
                          description: Total spending at this merchant
                        percentOfTotal:
                          type: number
                          description: Percentage of total expense
                        transactionCount:
                          type: number
                          description: Number of transactions
                      required:
                        - merchant
                        - total
                        - percentOfTotal
                        - transactionCount
                    description: Top merchants sorted by spending amount
                required:
                  - totalExpense
                  - merchants
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Missing or invalid bearer token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security:
        - bearerAuth: []
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              example: UNAUTHORIZED
            message:
              type: string
              example: Missing bearer token
            details:
              nullable: true
            requestId:
              type: string
          required:
            - code
            - message
      required:
        - error
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        Vings OAuth access token or personal access token (`vng_pat_…`). Use
        `Authorization: Bearer …`.

````