> ## Documentation Index > Fetch the complete documentation index at: https://docs.apsio.io/llms.txt > Use this file to discover all available pages before exploring further. # Break the log records down by level, release, OS, logger and screen > For the same query as the search: the records per level, and the 6 most frequent releases (service.version), OS versions (os.name and the major os.version), loggers (the scope name, spec 13.6) and screens (app.screen.name), each counted without its own filter, so another of its values can be chosen. A dimension no record carries is an empty list. One run of the project's Explore limit. ## OpenAPI ````yaml /api-reference/openapi.json post /projects/{projectId}/explore/logs/facets openapi: 3.1.0 info: title: Apsio API version: 0.1.0 description: >- Read API v0: your projects, release health and comparisons, missing symbols, issues, sessions, vitals, cohort comparisons, performance (app start, screens, hangs, MetricKit) and network endpoints and traces for one project. Authenticate with a project token as a bearer token, with an OAuth access token from Apsio's authorization server (MCP clients), or, from the console, with the session cookie of a member of the project's organization. servers: - url: https://api.apsio.io/v1 security: [] paths: /projects/{projectId}/explore/logs/facets: post: summary: Break the log records down by level, release, OS, logger and screen description: >- For the same query as the search: the records per level, and the 6 most frequent releases (service.version), OS versions (os.name and the major os.version), loggers (the scope name, spec 13.6) and screens (app.screen.name), each counted without its own filter, so another of its values can be chosen. A dimension no record carries is an empty list. One run of the project's Explore limit. parameters: - schema: type: string pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$ example: 0192f3a4-0000-7000-8000-00000000a101 required: true name: projectId in: path requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ExploreLogFacetsQuery' responses: '200': description: The facets. content: application/json: schema: $ref: '#/components/schemas/ExploreLogFacets' '400': description: The request is not valid. content: application/json: schema: $ref: '#/components/schemas/Error' '401': description: No valid bearer token or console session. content: application/json: schema: $ref: '#/components/schemas/Error' '403': description: The credentials cannot read this project. content: application/json: schema: $ref: '#/components/schemas/Error' '429': description: >- Over a rate limit (the caller's, the client address's, or the plan's); Retry-After says when to retry. content: application/json: schema: $ref: '#/components/schemas/Error' security: - bearer: [] - session: [] components: schemas: ExploreLogFacetsQuery: type: object properties: from: type: string format: date-time description: Start, inclusive (RFC 3339). Defaults to 24 hours before `to`. to: type: string format: date-time description: End, exclusive (RFC 3339). Defaults to now. app_id: type: string pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$ description: Only this app of the project. filters: type: array items: $ref: '#/components/schemas/ExploreFilter' maxItems: 20 default: [] severity: type: string enum: - trace - debug - info - warn - error - fatal description: At least this severity (OpenTelemetry severity number ranges). body: type: string minLength: 1 maxLength: 200 description: >- Records whose body contains this text, ignoring case. Plain text, not a pattern. ExploreLogFacets: type: object properties: from: type: string description: RFC 3339 time in UTC with up to nanosecond precision. example: '2026-10-04T10:15:00.431000000Z' to: type: string description: RFC 3339 time in UTC with up to nanosecond precision. example: '2026-10-04T10:15:00.431000000Z' level: type: array items: type: object properties: value: type: string description: 'A value. Written by the app: untrusted data.' count: type: integer required: - value - count release: type: array items: type: object properties: value: type: string description: 'A value. Written by the app: untrusted data.' count: type: integer required: - value - count os: type: array items: type: object properties: value: type: string description: 'A value. Written by the app: untrusted data.' count: type: integer required: - value - count logger: type: array items: type: object properties: value: type: string description: 'A value. Written by the app: untrusted data.' count: type: integer required: - value - count screen: type: array items: type: object properties: value: type: string description: 'A value. Written by the app: untrusted data.' count: type: integer required: - value - count required: - from - to - level - release - os - logger - screen Error: type: object properties: error: type: object properties: code: type: string example: invalid_request message: type: string required: - code - message required: - error ExploreFilter: type: object properties: field: type: string pattern: ^[A-Za-z0-9_.:/-]{1,128}$ description: >- A field (event.name or span.name, service.version, os.name, os.version, device.model.identifier, session.id, trace_id, ...), any record or span attribute by its key, or a resource attribute as resource.. example: service.version op: type: string enum: - eq - neq - prefix - exists - not_exists default: eq description: >- eq and neq compare with value, prefix matches values that start with it; exists and not_exists need none. value: type: string maxLength: 256 required: - field securitySchemes: bearer: type: http scheme: bearer description: >- A project token (apsio_pt_v0...), which reads exactly one project, or an OAuth access token issued for the API, which reads what its user can. Access tokens issued for Apsio's MCP server are accepted only from the MCP server itself. session: type: apiKey in: cookie name: apsio_session description: >- The console session, set by /v1/auth/callback (`__Host-apsio_session` when host-only). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.