Noun Project

Noun Project Blocklist API

Manage per-client blocklists for icon IDs, collection IDs, and terms.

Documentation GitHub OpenAPI

Operations 3

GET /v2/client/blacklist Get Client Blocklist #

POST /v2/client/blacklist/id Add Blocklist IDs #

POST /v2/client/blacklist/term Add Blocklist Terms #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Noun Project API V2 Blocklist 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: Blocklist
  description: Manage per-client blocklists for icon IDs, collection IDs, and terms.
paths:
  /v2/client/blacklist:
    get:
      operationId: getBlocklist
      summary: Get Client Blocklist
      description: Return the current blocklist for the calling client key, including blocked icon IDs, collection IDs, terms, and phrases. Results are cached for 10 minutes.
      tags:
      - Blocklist
      responses:
        '200':
          description: Current blocklist contents.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BlocklistResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
      security:
      - oauth1: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /v2/client/blacklist/id:
    post:
      operationId: addBlocklistIds
      summary: Add Blocklist IDs
      description: Add icon IDs or collection IDs to the client blocklist. Maximum 1,000 IDs per request for paid tiers and 5 for free trial accounts.
      tags:
      - Blocklist
      parameters:
      - name: type
        in: query
        description: Type of identifier being blocked.
        required: false
        schema:
          type: string
          enum:
          - icon
          - collection
          default: icon
      requestBody:
        description: Blocklist identifiers to add or overwrite.
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BlocklistIdRequest'
      responses:
        '200':
          description: Updated blocklist contents.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BlocklistResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
      security:
      - oauth1: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /v2/client/blacklist/term:
    post:
      operationId: addBlocklistTerms
      summary: Add Blocklist Terms
      description: Add terms and phrases to the client blocklist. Maximum 1,000 terms per request for paid tiers and 5 for free trial accounts.
      tags:
      - Blocklist
      requestBody:
        description: Blocklist terms and phrases to add or overwrite.
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BlocklistTermRequest'
      responses:
        '200':
          description: Updated blocklist contents.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BlocklistResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
      security:
      - oauth1: []
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    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
    BlocklistIdRequest:
      type: object
      description: Request body for adding icon or collection IDs to the blocklist.
      properties:
        blacklist:
          type: array
          description: Identifiers to add to the blocklist.
          items:
            type: integer
          minItems: 1
          maxItems: 1000
          example:
          - 12345
          - 67890
        overwrite:
          type: boolean
          description: When true, replaces the existing blocklist for this type entirely.
          default: false
          example: false
      required:
      - blacklist
    Blocklist:
      type: object
      description: The current blocklist for a client key.
      properties:
        icon_ids:
          type: array
          description: Blocked icon identifiers.
          items:
            type: integer
          example:
          - 12345
          - 67890
        collection_ids:
          type: array
          description: Blocked collection identifiers.
          items:
            type: integer
          example:
          - 98765
        terms:
          type: array
          description: Blocked terms and phrases.
          items:
            type: string
          example:
          - violence
          - weapon
        cached_at:
          type: string
          format: date-time
          description: ISO 8601 timestamp when the blocklist was last cached.
          example: '2026-05-28T13:55:00Z'
    BlocklistTermRequest:
      type: object
      description: Request body for adding terms or phrases to the blocklist.
      properties:
        blacklist:
          type: array
          description: Terms and phrases to add to the blocklist.
          items:
            type: string
          minItems: 1
          maxItems: 1000
          example:
          - violence
          - weapon
        overwrite:
          type: boolean
          description: When true, replaces the existing term blocklist entirely.
          default: false
          example: false
      required:
      - blacklist
    BlocklistResponse:
      type: object
      description: Wrapper for the client blocklist response.
      properties:
        blacklist:
          $ref: '#/components/schemas/Blocklist'
        generated_at:
          type: string
          format: date-time
          description: ISO 8601 timestamp of when the response was generated.
          example: '2026-05-28T14:00:00Z'
      required:
      - blacklist
  responses:
    RateLimited:
      description: The hourly, daily, or monthly request quota has been exceeded.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    BadRequest:
      description: The request was malformed or violated a documented limit.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    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