> ## Documentation Index > Fetch the complete documentation index at: https://docs.kombify.io/llms.txt > Use this file to discover all available pages before exploring further. # Availability, downtime episodes and daily state, derived from the transition timeline > A projection over the append-only server transition timeline rather than a sampler: every episode is bounded by two recorded transitions and carries the reason codes they were written with. The response publishes its own accounting vocabulary, so a reader can see which connection states were counted as downtime without reading the source. ## OpenAPI ````yaml /techstack/reference/api/openapi.yaml get /api/v1/monitor/availability openapi: 3.1.0 info: title: kombify-TechStack API description: > REST API for kombify-TechStack -- the hybrid cloud control plane for homelabs. kombify-TechStack manages infrastructure through a spec-driven architecture: validate YAML specs via CUE, generate OpenTofu configurations, and manage nodes through a gRPC agent protocol. ## Authentication Authenticated endpoints accept an OIDC/JWKS bearer token or an API key where documented. Self-hosted TechStack defaults to Pocket ID as identity provider. SaaS routes enter through the edge with Auth0 as the platform identity provider. PocketBase session exchange remains legacy migration compatibility only. ## Response Format **Success:** `{ "data": , "meta": { "total": int, "page": int, "per_page": int } }` **Error:** `{ "error": { "code": "", "message": "...", "details": } }` ## Pagination List endpoints accept `page` (default: 1) and `per_page` (default: 20, max: 100) query parameters. version: 1.0.0 contact: name: kombify url: https://kombify.io license: name: Apache-2.0 AND GPL-3.0 url: https://github.com/KombiverseLabs/kombify-TechStack/blob/main/LICENSE servers: - url: https://api.kombify.io/v1/techstack description: >- Production canonical (via Cloudflare edge gateway, strip-prefix). Clients MUST use this projection. The Gateway strips /v1/techstack and re-adds /api/v1 at the origin, so it resolves the /api/v1/* paths below cleanly. - url: http://localhost:5260 description: Local development - url: https://techstack.kombify.io description: Production (direct, no Gateway prefix) - url: https://api.kombify.io/v1/orchestrator description: >- Legacy StackKit-Orchestrator projection of the same origin. RETAINED for backward compatibility with existing consumers only. Do NOT use for mobile or new clients: combined with the /api/v1/* paths it double-resolves (yielding /v1/orchestrator/api/v1/...). Prefer /v1/techstack. security: - bearerAuth: [] tags: - name: Health description: Health checks and service info (no auth required) - name: Instance description: Local instance identity and enrollment metadata - name: Stacks description: Stack lifecycle management (create, provision, deploy, destroy) - name: Stacks - Specs description: Access persisted specification chain (intent, requirements, unified) - name: Stacks - Import/Export description: Import and export StackKits stack-spec.yaml configurations - name: Stacks - Drift description: Infrastructure drift detection and resolution - name: Unifier description: Spec validation, analysis, unification, and IaC generation pipeline - name: StackKits description: Infrastructure template catalog - name: Add-ons description: Add-on detection and registry - name: Workers description: Worker node registration and management - name: Servers description: Canonical server lifecycle, connection, and health state - name: Inventory description: >- Owner-scoped sanitized server and service read models for UI, API, and MCP clients - name: Pre-Checks description: Pre-deployment hardware and software validation - name: Agents description: Connected gRPC agent management and commands - name: Jobs description: Background job monitoring and SSE streaming - name: Discovery description: Network device discovery and SSH testing - name: Features description: Feature flags (read-only; managed centrally via the kombify Admin API) - name: Monthly Runtime description: Provider-free user API for subscription-backed stack runtime control - name: Runtime description: Recent runtime/deploy logs (job/deploy progress + container tail) - name: Wallet description: >- Redacted recovery-item wallet with biometric/platform-reauth-gated reveal. List responses strip secret/totp; reveal requires a fresh trusted-reauth HMAC proof (5-minute window) and is audited server-side. - name: Trust description: Pairing tokens for worker enrollment - name: Client Binding description: >- Short-lived HTTPS pairing for a second client and normal OIDC account handoff - name: Tunnel description: Cloudflare tunnel management for NAT traversal - name: Backups description: Database backup management (admin only) - name: Auth description: Authentication mode and SSO configuration - name: Metrics description: Prometheus-compatible instance metrics for admin/infra scrapers - name: Internal description: >- Internal SaaS-only APIs, including servicecall-protected executor contracts paths: /api/v1/monitor/availability: get: tags: - Metrics summary: >- Availability, downtime episodes and daily state, derived from the transition timeline description: >- A projection over the append-only server transition timeline rather than a sampler: every episode is bounded by two recorded transitions and carries the reason codes they were written with. The response publishes its own accounting vocabulary, so a reader can see which connection states were counted as downtime without reading the source. operationId: getAvailabilityReport parameters: - name: window in: query required: false schema: type: string enum: - 24h - 7d - 30d - 90d default: 30d description: Closed set; an unbounded window would be a denial-of-service knob. - name: server_id in: query required: false schema: type: string description: Scope the report to one server, for the server detail page. responses: '200': description: Availability report for the window content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/AvailabilityReport' meta: $ref: '#/components/schemas/ResponseMeta' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' '503': $ref: '#/components/responses/ServiceUnavailable' components: schemas: AvailabilityReport: type: object required: - window - start - end - uptime_ratio - observed_seconds - down_seconds - servers - accounting properties: window: type: string enum: - 24h - 7d - 30d - 90d start: type: string format: date-time end: type: string format: date-time uptime_ratio: type: - number - 'null' description: >- up / (up + down) over observed time only. Null when the window contains no observed time - "no evidence" and "zero percent" are different statements. observed_seconds: type: integer format: int64 down_seconds: type: integer format: int64 mttr_seconds: type: - integer - 'null' format: int64 description: >- Mean duration of episodes that ended. An ongoing outage never shortens it. closed_episodes: type: integer by_cause: type: array items: $ref: '#/components/schemas/AvailabilityCause' servers: type: array items: $ref: '#/components/schemas/AvailabilityServer' accounting: $ref: '#/components/schemas/AvailabilityAccounting' ResponseMeta: type: object properties: total: type: integer page: type: integer per_page: type: integer managed_runtime_inventory_complete: type: boolean description: >- True only when the managed RuntimeLease authority was configured and read successfully for this inventory response. worker_inventory_sha256: type: string pattern: ^[0-9a-f]{64}$ description: >- Stable digest of the complete worker identity, attachment, freshness, and managed RuntimeLease authority snapshot used for pagination. managed_runtime_active_lease_ids: type: array items: type: string description: >- Canonically sorted IDs of visible managed RuntimeLeases classified as active for inventory and cleanup. This visibility projection is not capacity reservation or release authority. managed_runtime_inactive_lease_ids: type: array items: type: string description: >- Canonically sorted IDs of visible managed RuntimeLeases classified as cancelled or archived for inventory and cleanup. Inactive state does not prove provider absence or release managed-server capacity. managed_runtime_lease_generation_digests: type: array items: type: object required: - lease_id - resource_generation_digest properties: lease_id: type: string resource_generation_digest: type: string pattern: ^[0-9a-f]{64}$ description: >- Canonically sorted opaque bindings from each visible managed RuntimeLease ID to its exact provider-resource generation. Missing coverage makes destructive inventory proof invalid while leaving ordinary dashboard inventory readable. managed_runtime_duplicate_lease_ids: type: array items: type: string description: >- Managed RuntimeLease IDs represented by multiple persisted worker rows before UI projection deduplication; must be empty for destructive inventory proof. managed_runtime_attachment_conflict_lease_ids: type: array items: type: string description: >- Canonically sorted caller-visible managed RuntimeLease IDs with a conflicting tenant-wide worker attachment; must be empty for destructive inventory proof and never exposes foreign private lease or worker details. AvailabilityCause: type: object required: - reason_code - seconds - episodes properties: reason_code: type: string description: The reason the opening transition recorded, or `unrecorded`. seconds: type: integer format: int64 episodes: type: integer AvailabilityServer: type: object required: - server_id - uptime_ratio - observed_seconds - down_seconds - episodes - days properties: server_id: type: string name: type: string uptime_ratio: type: - number - 'null' observed_seconds: type: integer format: int64 down_seconds: type: integer format: int64 episodes: type: array items: $ref: '#/components/schemas/AvailabilityEpisode' days: type: array items: type: object required: - day - state properties: day: type: string format: date state: type: string description: Worst state observed that UTC day; empty means no observation. AvailabilityAccounting: type: object required: - up - down - unobserved description: >- How each connection state was counted. `stale` is downtime: the agent stopped reporting, so service cannot be confirmed, and the conservative reading is the honest one for an availability figure. `pending` and `connecting` leave the denominator entirely - a node that never connected is not having an outage. properties: up: type: array items: type: string down: type: array items: type: string unobserved: type: array items: type: string ErrorResponse: type: object required: - error properties: error: type: object required: - code - message properties: code: type: string enum: - INTERNAL_ERROR - NOT_FOUND - BAD_REQUEST - UNAUTHORIZED - FORBIDDEN - CONFLICT - VALIDATION_ERROR - RATE_LIMITED - SERVICE_UNAVAILABLE - METHOD_NOT_ALLOWED message: type: string details: description: Additional error context (validation errors, etc.) AvailabilityEpisode: type: object required: - server_id - started_at - seconds - ongoing - state properties: server_id: type: string server_name: type: string started_at: type: string format: date-time ended_at: type: string format: date-time description: >- Absent while the outage is ongoing; never backfilled from the window edge. seconds: type: integer format: int64 ongoing: type: boolean state: type: string description: Worst connection state the episode reached. trigger_reason: type: string trigger_source: type: string recovery_reason: type: string recovery_source: type: string evidence_ref: type: string responses: BadRequest: description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' Unauthorized: description: Authentication required content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' NotFound: description: Resource not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' ServiceUnavailable: description: Required control-plane persistence or dependency is unavailable content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: >- OIDC/JWKS bearer token. Self-hosted defaults to Pocket ID; SaaS uses Auth0 through the edge. PocketBase JWT is legacy migration compatibility only. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.