Moody's Corporation Reference API

openapi: 3.2.0
info:
  title: Moody's Analytics Developer Platform Authentication Reference API
  version: 1.0.0
  description: Cross-cutting umbrella API surface for the Moody's Analytics developer platform covering authentication (OAuth2 client credentials and HMAC request signing), platform health, product catalog discovery, and a canonical pattern for asynchronous analysis-job execution used across multiple Moody's Analytics product APIs (Data Buffet, Scenario Studio, ImpairmentStudio, AutoCycle, ECCL).
  contact:
    name: Moody's Analytics Developer Support
    email: helpeconomy@moodys.com
    url: https://developer.moodys.com/
  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
  description: Moody's Analytics economy.com API gateway
- url: https://api.moodys.com
  description: Moody's Analytics moodys.com API gateway
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:
  schemas:
    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.
    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.
    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.
  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
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.economy.com/oauth2/token
          scopes:
            read: Read access to entitled Moody's Analytics products
            write: Write access for job submission and basket / order management
    hmac:
      type: apiKey
      in: header
      name: Authorization
      description: HMAC-SHA256 request signing scheme used as an alternative to OAuth2 on legacy Moody's Analytics product APIs (Data Buffet, Scenario Studio).
externalDocs:
  description: Moody's Analytics Developer Portal
  url: https://developer.moodys.com/