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OpenAPI Specification

openapi: 3.2.0
info:
  title: Metals Analytics Rates API
  description: Metals-API provides a free, simple, and lightweight JSON API for current and historical precious metals rates and currency conversion. It supports real-time and historical data for gold, silver, platinum, palladium, and other metals in 170 world currencies.
  version: '1.0'
  contact:
    name: Metals-API
    url: https://metals-api.com/
  license:
    name: Proprietary
    url: https://metals-api.com/terms
servers:
- url: https://metals-api.com/api
  description: Production
security:
- accessKey: []
tags:
- name: Rates
  description: Real-time and historical precious metals rates.
paths:
  /latest:
    get:
      summary: Get latest rates
      description: Returns the most recent precious metals and currency exchange rates.
      operationId: getLatest
      tags:
      - Rates
      parameters:
      - $ref: '#/components/parameters/Base'
      - $ref: '#/components/parameters/Symbols'
      - name: unit
        in: query
        description: Unit of measure (e.g., troy_ounce, gram, kilogram).
        schema:
          type: string
      responses:
        '200':
          description: Latest rates.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RatesResponse'
  /{date}:
    get:
      summary: Get historical rates by date
      description: Returns historical rates for a specific date in YYYY-MM-DD format.
      operationId: getHistoricalRates
      tags:
      - Rates
      parameters:
      - name: date
        in: path
        required: true
        description: Date in YYYY-MM-DD format.
        schema:
          type: string
          format: date
      - $ref: '#/components/parameters/Base'
      - $ref: '#/components/parameters/Symbols'
      responses:
        '200':
          description: Historical rates for the requested date.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RatesResponse'
  /carat:
    get:
      summary: Get gold prices by carat
      description: Returns gold prices broken down by carat weight.
      operationId: getCarat
      tags:
      - Rates
      parameters:
      - $ref: '#/components/parameters/Base'
      responses:
        '200':
          description: Gold prices by carat.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RatesResponse'
components:
  schemas:
    RatesResponse:
      type: object
      properties:
        success:
          type: boolean
        timestamp:
          type: integer
        base:
          type: string
        date:
          type: string
          format: date
        rates:
          type: object
          additionalProperties:
            type: number
        unit:
          type: string
  parameters:
    Symbols:
      name: symbols
      in: query
      description: Comma-separated list of currency or metal codes to limit the response.
      schema:
        type: string
    Base:
      name: base
      in: query
      description: Three-letter currency or metal code that serves as the base.
      schema:
        type: string
  securitySchemes:
    accessKey:
      type: apiKey
      in: query
      name: access_key