Noun Project

Noun Project Usage API

Inspect current API key usage against documented quotas.

Documentation GitHub OpenAPI

Operations 1

GET /v2/client/usage Get Client Usage #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Noun Project API V2 Usage API
  description: 'The Noun Project API V2 is an OAuth 1.0a-secured REST API that provides

    access to nearly 10 million royalty-free PNG and SVG icons.'
  version: '2.0'
  termsOfService: https://thenounproject.com/legal/api-terms-of-use/
  contact:
    name: Noun Project API Support
    url: https://thenounproject.zendesk.com/
  license:
    name: Royalty-Free Commercial Use
    url: https://thenounproject.com/legal/api-terms-of-use/
  x-generated-from: documentation
  x-last-validated: '2026-05-28'
servers:
- url: https://api.thenounproject.com
  description: Noun Project API production endpoint
security:
- oauth1: []
tags:
- name: Usage
  description: Inspect current API key usage against documented quotas.
paths:
  /v2/client/usage:
    get:
      operationId: getUsage
      summary: Get Client Usage
      description: Return the calling client key's current usage and limits for the hourly, daily, and monthly windows.
      tags:
      - Usage
      responses:
        '200':
          description: Current usage and limit snapshot.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UsageResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
      security:
      - oauth1: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    UsageResponse:
      type: object
      description: Wrapper for the client usage response.
      properties:
        usage:
          $ref: '#/components/schemas/Usage'
        generated_at:
          type: string
          format: date-time
          description: ISO 8601 timestamp of when the response was generated.
          example: '2026-05-28T14:00:00Z'
      required:
      - usage
    Usage:
      type: object
      description: API key usage and quota information.
      properties:
        hourly:
          $ref: '#/components/schemas/UsageWindow'
        daily:
          $ref: '#/components/schemas/UsageWindow'
        monthly:
          $ref: '#/components/schemas/UsageWindow'
    ErrorResponse:
      type: object
      description: Standard error response payload returned for 4xx and 5xx responses.
      properties:
        error:
          type: string
          description: Machine-readable error code.
          example: rate_limit_exceeded
        message:
          type: string
          description: Human-readable error message.
          example: The monthly quota for this client key has been exceeded.
        status:
          type: integer
          description: HTTP status code echo.
          example: 429
        request_id:
          type: string
          description: Server-generated identifier for the failing request.
          example: req-abc123def456
    UsageWindow:
      type: object
      description: Usage statistics for a single time window.
      properties:
        service_calls_used:
          type: integer
          description: Non-icon API calls consumed in this window.
          example: 245
        service_calls_limit:
          type: integer
          description: Maximum non-icon API calls allowed in this window.
          example: 1000
        icon_calls_used:
          type: integer
          description: Icon-specific calls consumed in this window.
          example: 38
        icon_calls_limit:
          type: integer
          description: Maximum icon-specific calls allowed in this window.
          example: 150
        period_start:
          type: string
          format: date-time
          description: ISO 8601 timestamp of when this window started.
          example: '2026-05-28T00:00:00Z'
        period_end:
          type: string
          format: date-time
          description: ISO 8601 timestamp of when this window ends.
          example: '2026-05-29T00:00:00Z'
  responses:
    Unauthorized:
      description: Missing or invalid OAuth 1.0a credentials.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    oauth1:
      type: apiKey
      in: header
      name: Authorization
      description: OAuth 1.0a signed Authorization header constructed with the client key and secret obtained from the Noun Project developer portal. A nonce of at least 8 characters is required. Use any standards-compliant OAuth 1.0a library (requests_oauthlib, Faraday-OAuth, DotNetOpenAuth, etc.).
      x-auth-type: OAuth 1.0a
      x-token-url: https://thenounproject.com/developers/apps/
externalDocs:
  description: Noun Project API Documentation
  url: https://api.thenounproject.com/documentation.html