openapi: 3.0.3 info: title: Wordnik Account Word Lists API description: 'Wordnik is the world''s biggest online English dictionary. The Wordnik API exposes word definitions (from five dictionaries), etymologies, real example sentences from millions of sources, audio pronunciations, related-word relationships, frequency data, hyphenation, phrases, scrabble scores, random words, reverse-dictionary lookup, word-of-the-day, and user word lists.' version: '4.0' contact: name: Wordnik API Team email: apiteam@wordnik.com url: https://developer.wordnik.com termsOfService: https://www.wordnik.com/about license: name: Wordnik Terms of Service url: https://www.wordnik.com/about x-providerName: wordnik.com x-apisguru-categories: - text x-logo: url: https://wordnik.com/img/logo-wordnik-home.png x-last-validated: '2026-05-29' x-origin: - format: openapi url: https://developer.wordnik.com/api-docs/swagger.json version: '2.0' servers: - url: https://api.wordnik.com/v4 description: Wordnik v4 production API security: - api_key: [] tags: - name: Word Lists description: Create new user word lists. paths: /wordLists.json: post: operationId: createWordList summary: Create A New Word List description: Creates a new word list owned by the authenticated user. Endpoint surface verified from the Wordnik official client SDK (wordnik-clients/java WordListsApi). tags: - Word Lists x-microcks-operation: delay: 0 dispatcher: FALLBACK x-schema-source: sdk x-sdk-repo: https://github.com/wordnik/wordnik-clients parameters: - name: auth_token in: header required: true description: A valid user auth token. schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/WordList' responses: '200': description: The created WordList. content: application/json: schema: $ref: '#/components/schemas/WordList' components: schemas: WordList: type: object required: - id properties: createdAt: type: string format: date-time description: type: string id: type: integer format: int64 lastActivityAt: type: string format: date-time name: type: string numberWordsInList: type: integer format: int64 permalink: type: string type: type: string enum: - PUBLIC - PRIVATE updatedAt: type: string format: date-time userId: type: integer format: int64 username: type: string securitySchemes: api_key: type: apiKey name: api_key in: query description: Wordnik issues per-account API keys; pass via the `api_key` query parameter on every request. auth_token: type: apiKey name: auth_token in: header description: User auth token returned by `/account.json/authenticate/{username}`; required for user-scoped account and word-list operations. externalDocs: description: Wordnik Developer Documentation url: https://developer.wordnik.com