Moody's Corporation Reference API

openapi: 3.2.0
info:
  title: Moody's Data Buffet Reference API
  version: 1.0.0
  description: The Moody's Analytics Data Buffet API provides programmatic access to international and subnational economic, demographic, and financial time series data and forecasts. It enables retrieval of individual series or baskets of data, supports frequency conversion, mathematical transformations, date range filtering, and vintage/versioning selection. Code samples are available in C#, Java, Python, and R.
  contact:
    name: Moody's Analytics
    url: https://www.economy.com/products/tools/data-buffet
  license:
    name: Moody's Analytics Terms of Use
    url: https://www.moodys.com/web/en/us/about/legal/terms-of-use.html
servers:
- url: https://api.economy.com/data/v1
  description: Moody's Analytics Data Buffet production server
security:
- oauth2: []
tags:
- name: Reference
  description: Operations for retrieving frequency, vintage, and file type metadata
paths:
  /oauth2/token:
    post:
      operationId: getAccessToken
      summary: Moody's Obtain an Access Token
      description: Authenticates using OAuth2 client credentials and returns a bearer access token for subsequent API requests.
      tags:
      - Reference
      security: []
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - grant_type
              - client_id
              - client_secret
              properties:
                grant_type:
                  type: string
                  enum:
                  - client_credentials
                  description: The OAuth2 grant type. Must be client_credentials.
                client_id:
                  type: string
                  description: The API client ID issued by Moody's Analytics.
                client_secret:
                  type: string
                  description: The API client secret issued by Moody's Analytics.
      responses:
        '200':
          description: Successfully obtained access token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessToken'
        '400':
          description: Invalid grant type or missing credentials
        '401':
          description: Invalid client credentials
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /frequencies:
    get:
      operationId: listFrequencies
      summary: Moody's List Available Data Frequencies
      description: Returns a list of all supported data frequencies (e.g., annual, quarterly, monthly, weekly, daily) that can be used for frequency conversion when retrieving series.
      tags:
      - Reference
      responses:
        '200':
          description: Successfully retrieved frequency list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/FrequencyInfo'
        '401':
          description: Unauthorized - invalid or expired token
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /vintages:
    get:
      operationId: listVintages
      summary: Moody's List Available Vintages for a Series
      description: Returns a list of available data vintages (historical revisions) for a specific series. Vintages enable access to previous versions of data as originally published.
      tags:
      - Reference
      parameters:
      - $ref: '#/components/parameters/mnemonic'
      responses:
        '200':
          description: Successfully retrieved vintage list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Vintage'
        '400':
          description: Invalid mnemonic
        '401':
          description: Unauthorized - invalid or expired token
        '404':
          description: Series mnemonic not found
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /filetypes:
    get:
      operationId: listFileTypes
      summary: Moody's List Supported Output File Types
      description: Returns a list of supported output file types for order data generation (e.g., CSV, Excel, XML, JSON).
      tags:
      - Reference
      responses:
        '200':
          description: Successfully retrieved file type list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/FileType'
        '401':
          description: Unauthorized - invalid or expired token
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  parameters:
    mnemonic:
      name: mnemonic
      in: query
      description: The unique series mnemonic identifier. Mnemonics follow the Data Buffet naming convention, e.g., FGDP_US for US GDP or EMPLPAY.IUSA for US total nonfarm payrolls.
      required: true
      schema:
        type: string
      examples:
        usGdp:
          summary: US Gross Domestic Product
          value: FGDP_US
        usPayrolls:
          summary: US Total Nonfarm Payrolls
          value: EMPLPAY.IUSA
  schemas:
    FrequencyInfo:
      type: object
      description: Metadata about a supported data frequency.
      required:
      - code
      - name
      properties:
        code:
          type: string
          description: Single-character frequency code used in API parameters.
          enum:
          - A
          - Q
          - M
          - W
          - D
          example: A
        name:
          type: string
          description: Human-readable frequency name.
          enum:
          - Annual
          - Quarterly
          - Monthly
          - Weekly
          - Daily
          example: Annual
        description:
          type: string
          description: Description of the frequency and its typical use cases.
          example: A sample description.
    AccessToken:
      type: object
      description: OAuth2 access token response.
      required:
      - access_token
      - token_type
      - expires_in
      properties:
        access_token:
          type: string
          description: The bearer access token for authenticating API requests.
          example: example_value
        token_type:
          type: string
          description: The type of token issued. Always "Bearer".
          enum:
          - Bearer
          example: Bearer
        expires_in:
          type: integer
          description: The number of seconds until the access token expires.
          example: 10
    Vintage:
      type: object
      description: Metadata about a data vintage representing a historical revision of a series.
      required:
      - vintageDate
      properties:
        vintageDate:
          type: string
          format: date
          description: The date this vintage was published.
          example: '2026-01-15'
        description:
          type: string
          description: Description of the vintage release context.
          example: A sample description.
    FileType:
      type: object
      description: Metadata about a supported output file type.
      required:
      - code
      - name
      properties:
        code:
          type: string
          description: File type code used in order creation.
          example: example_value
        name:
          type: string
          description: Human-readable file type name.
          example: Example Title
        extension:
          type: string
          description: File extension (e.g., csv, xlsx, json, xml).
          example: example_value
        description:
          type: string
          description: Description of the file format.
          example: A sample description.
  securitySchemes:
    oauth2:
      type: oauth2
      description: OAuth2 client credentials flow for authenticating API requests. Obtain client_id and client_secret from your Moody's Analytics account.
      flows:
        clientCredentials:
          tokenUrl: https://api.economy.com/data/v1/oauth2/token
          scopes: {}
externalDocs:
  description: Moody's Data Buffet API Documentation
  url: https://api.economy.com/data/v1/swagger