> ## Documentation Index > Fetch the complete documentation index at: https://docs.bronto.io/llms.txt > Use this file to discover all available pages before exploring further. # Retrieve top keys for logs > Retrieves the most frequently occurring keys (field names) from log events within a specified time range. This is useful for understanding the structure and common fields present in your log data. If no log ID is specified, top keys are returned for all accessible logs. ## OpenAPI ````yaml get /top-keys openapi: 3.0.2 info: title: Bronto API license: name: Commercial version: 1.0.0 servers: - url: https://api.eu.bronto.io - url: https://api.us.bronto.io security: - ApiKeyAuth: [] - BearerAuth: [] tags: - name: api-keys description: > An Application Programming Interface (API) key is a unique identifier. The API Key must be provided as X-BRONTO-API-KEY in headers for the request to be authenticated and authorized by the API server according to the API Key's role. For further information about roles visit [our API Key docs] https://docs.bronto.io/manage/manage-api-keys - name: context description: > Context is a REST API resource that allows the retrieval of a specified number of log events (default of 100) around a log event of interest, e.g. when a number of log events were returned by a previous query and you then decide you want to see the 50 log events before one of those returned log events. Log events can be retrieved either before, after, or both before and after the specified log event. - name: exports description: > The Bronto Export API allows you to efficiently download large volumes of log data for further analysis. The data to be exported can be filtered by entering the search parameters \"from\", \"where\" and \"time_range\" as per a normal query in the \"search_details\" object. To export data the following steps are required: 1. Create an export using a POST request, which will return an \"export_id\", \"status\" and \"progress\". 2. Use the export id to get the status of the export task by sending a GET request, which will return \"status\" and \"progress\" with a value of percentage completed. When the export is completed, the \"status\" will be \"COMPLETE\" 3. Once the export task has completed you can download your data using curl (or similar) from the \"location\" URL returned in the GET response. - name: logs description: > Logs are a sequence of timestamped log events. Logs can be searched to view events matching a filter or to perform statistical functions on matching events. - name: search description: > The REST API for searching data uses queries based on a subset of SQL, with the syntax as per https://docs.brontobytes.io/core-features/log-search/query-syntax/. - name: top-keys description: > Top-Keys is a REST API resource that allows you to easily retrieve the top keys for a specific log. - name: usage description: > Usage is a REST API resource that allows you to easily track your Bronto usage by retrieving usage data relating to data ingestion and amount of data searched, and allowing you to drill down for a specific dataset over a defined timeframe. - name: users description: > Users are given specific roles, where each role determines the user's permissions within the application. Those roles are as follows: - "Admin" role has permission for all actions on all entities in the application. - "Standard" role allows Read/Write and Delete actions on entities in non-sensitive areas of the application. - "ReadOnly" role allows only read actions and only on entities in non-sensitive areas of the application. paths: /top-keys: get: tags: - top-keys summary: Get the top keys for a specific log id operationId: getTopKeysById parameters: - name: log_id in: query description: > The ids of the logs to retrieve the top keys for. If no log ids are specified, then top keys are returned for all logs. required: false schema: type: string format: uuid example: 550e8400-e29b-41d4-a716-446655440000 responses: '200': description: Successful response content: application/json: schema: type: object additionalProperties: $ref: '#/components/schemas/TopKeys' '400': description: Bad Request - The body in the request is invalid. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Not Found - The logId in the request is not found. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '429': description: Too Many Request - Fair usage limits exceeded content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal Server Error - An error occurred on the server side. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' default: description: Unexpected Error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: TopKeys: type: object additionalProperties: $ref: '#/components/schemas/TopKeysPerLog' ErrorResponse: required: - code - correlation_id - message type: object properties: code: minimum: 200 type: integer description: The http response code. format: int32 correlation_id: type: string description: The unique identifier for the request. message: type: string TopKeysPerLog: required: - rank type: object properties: rank: type: integer description: >- A count representing the number of times this key was in the sampled data. example: 5 type: type: string description: A description of the type of data contained in the key. enum: - STRING - NUMBER - BOOLEAN field_type: type: string description: A description of the source of the given key. enum: - Tags - Message KVP values: type: object additionalProperties: $ref: '#/components/schemas/TopKeyValue' TopKeyValue: type: object properties: value: type: string description: A value associated with the key. rank: type: integer description: >- A count representing the number of times a value occurred for the key. securitySchemes: ApiKeyAuth: type: apiKey name: X-BRONTO-API-KEY in: header BearerAuth: type: http scheme: bearer bearerFormat: JWT ````