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OpenAPI Specification

openapi: 3.1.0
info:
  title: Metals.Dev Account Authority API
  description: Metals.Dev provides a developer-friendly JSON API for spot prices of precious metals, industrial metals, and currency conversion rates. It offers real-time prices from leading authorities including LBMA, LME, MCX, and IBJA, plus 5+ years of historical data.
  version: '1.0'
  contact:
    name: Metals.Dev
    url: https://metals.dev/
  license:
    name: Proprietary
    url: https://metals.dev/terms
servers:
- url: https://api.metals.dev/v1
  description: Production
security:
- apiKey: []
tags:
- name: Authority
  description: Authority pricing from LBMA, LME, MCX, and IBJA.
paths:
  /metal/authority:
    get:
      summary: Get authority metal price
      description: Returns prices from leading exchanges and authorities.
      operationId: getMetalAuthority
      tags:
      - Authority
      parameters:
      - name: authority
        in: query
        required: true
        description: Authority code.
        schema:
          type: string
          enum:
          - lbma
          - lme
          - mcx
          - ibja
      - name: currency
        in: query
        schema:
          type: string
      - name: unit
        in: query
        schema:
          type: string
      responses:
        '200':
          description: Authority pricing data.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthorityResponse'
components:
  schemas:
    AuthorityResponse:
      allOf:
      - $ref: '#/components/schemas/BaseResponse'
      - type: object
        properties:
          authority:
            type: string
          metals:
            type: object
            additionalProperties:
              type: number
    BaseResponse:
      type: object
      properties:
        status:
          type: string
        currency:
          type: string
        unit:
          type: string
        timestamp:
          type: string
          format: date-time
        error_code:
          type: integer
        error_message:
          type: string
  securitySchemes:
    apiKey:
      type: apiKey
      in: query
      name: api_key