openapi: 3.1.0 info: title: what3words Public Autosuggest Convert To 3wa API description: 'The what3words API converts between 3 word addresses (e.g. ///filled.count.soap) and latitude/longitude coordinates, returns autosuggest candidates, grid sections and supported languages. ' version: '3.0' contact: name: what3words url: https://developer.what3words.com/public-api/docs servers: - url: https://api.what3words.com/v3 description: Production security: - ApiKeyQuery: [] - ApiKeyHeader: [] tags: - name: Convert To 3wa paths: /convert-to-3wa: get: summary: Convert coordinates to a 3 word address operationId: convertTo3wa parameters: - name: coordinates in: query required: true schema: type: string description: Latitude and longitude as comma separated values e.g. 51.521251,-0.203586 - name: language in: query required: false schema: type: string default: en - name: format in: query required: false schema: type: string enum: - json - geojson default: json responses: '200': description: Successful response content: application/json: {} tags: - Convert To 3wa components: securitySchemes: ApiKeyQuery: type: apiKey in: query name: key ApiKeyHeader: type: apiKey in: header name: X-Api-Key