> ## Documentation Index > Fetch the complete documentation index at: https://docs.zespan.com/llms.txt > Use this file to discover all available pages before exploring further. # The full bundled model lifecycle feed > Returns Zespan's curated, bundled catalogue of provider-announced deprecation and retirement dates in full — not scoped to a project, since the catalogue is the same for every tenant. This is the raw data [Model Lifecycle](/dashboard/model-lifecycle) findings and the Models page's Lifecycle column are matched against. See the [feed reference](/reference/model-lifecycle-feed) for the field semantics. **Authenticated with a dashboard session (browser cookie), not `x-api-key`**, and requires the `dashboard:read` permission — not project-scoped, but still member-gated, since the curation is part of what a paying customer gets. ## OpenAPI ````yaml /api-reference/openapi.yaml get /v1/model-catalogue openapi: 3.1.0 info: title: Zespan Public API version: 1.0.0 description: > The Zespan Public API covers the endpoints that customers call directly or through the Zespan SDKs: trace ingestion (native and OpenTelemetry), prompt management, datasets and dataset runs, and the runtime guardrails check. All endpoints authenticate with a project API key sent in the `x-api-key` header. Create and manage API keys from the project settings in the Zespan dashboard. servers: - url: https://api.zespan.com description: Zespan production API security: - ApiKeyAuth: [] tags: - name: Ingestion description: Send traces and events to Zespan. - name: OpenTelemetry description: OTLP-compatible ingestion endpoints. - name: Prompts description: Manage versioned prompts and their labels, tags, and folders. - name: Datasets description: Read datasets and manage dataset runs used for experiments and scoring. - name: Guardrails description: Runtime guardrail evaluation. - name: SDK / CLI support description: > Small support endpoints consumed by the SDKs and @zespan/cli rather than called directly by application code. - name: Blast Radius description: > The prompt/agent/model/policy/evaluator/alert dependency graph backing the pre-release impact check and the evaluator-delete gate in the dashboard. Session-authenticated (dashboard cookie), not `x-api-key`. - name: Outcomes description: > Report business outcomes (a deflected ticket, an avoided refund, an SLA met) attributed to a trace, and read them back summarized by agent or model, joined to real trace cost. Backs the Value dashboard page. The ingest endpoint is `x-api-key`-authenticated like the rest of ingestion; the two read endpoints are session-authenticated (dashboard cookie) like Blast Radius. - name: Compliance description: > Generate audit-ready evidence documents (a per-agent Compliance Card, or SOC 2 control evidence) from recorded platform data, and re-verify a generated document's citations against live data. Session-authenticated (dashboard cookie), not `x-api-key`, gated by `compliance:read` / `compliance:generate` permissions and the Pro plan or above (the framework listing is the one exception — no project scope and no plan gate, since a customer deciding whether to upgrade needs to see what they'd get). - name: Models description: > Per-model usage, cost, latency, and error-rate rollups for a project, including the lifecycle overlay described under the Model Lifecycle tag. Session-authenticated (dashboard cookie), not `x-api-key`, gated by `dashboard:read`. - name: Model Lifecycle description: > Findings from the daily model deprecation scan, which matches models a project actually calls against a curated, bundled catalogue of provider-announced deprecation and retirement dates. Every figure on a finding (call volume, cost, affected agents/prompts, cost comparison against a named successor) is measured from real trace data — there is no quality-delta or regression-comparison endpoint, because nothing in this API invokes a model on the caller's behalf. Session-authenticated (dashboard cookie), not `x-api-key`: reading findings and the catalogue requires `dashboard:read`, dismissing a finding requires `alerts:manage`. paths: /v1/model-catalogue: get: tags: - Model Lifecycle summary: The full bundled model lifecycle feed description: > Returns Zespan's curated, bundled catalogue of provider-announced deprecation and retirement dates in full — not scoped to a project, since the catalogue is the same for every tenant. This is the raw data [Model Lifecycle](/dashboard/model-lifecycle) findings and the Models page's Lifecycle column are matched against. See the [feed reference](/reference/model-lifecycle-feed) for the field semantics. **Authenticated with a dashboard session (browser cookie), not `x-api-key`**, and requires the `dashboard:read` permission — not project-scoped, but still member-gated, since the curation is part of what a paying customer gets. operationId: getModelCatalogue responses: '200': description: The full bundled feed. content: application/json: schema: type: object properties: feedVersion: type: string description: Release identifier, e.g. `2026-08-09`. checkedAt: type: string description: > `YYYY-MM-DD` — when a human last verified every entry against its `sourceUrl`. entries: type: array items: $ref: '#/components/schemas/ModelLifecycleFeedEntry' required: - feedVersion - checkedAt - entries '403': description: >- Not authenticated with a dashboard session, or lacks `dashboard:read`. content: application/json: schema: $ref: '#/components/schemas/Error' security: [] components: schemas: ModelLifecycleFeedEntry: type: object description: >- One row of the bundled model lifecycle catalogue. See the feed reference for full field semantics. properties: provider: type: string model: type: string deprecatedAt: type: string nullable: true description: '`YYYY-MM-DD`, or `null`.' retiresAt: type: string nullable: true description: >- `YYYY-MM-DD`, or `null`. A finding is only produced for a non-null date. successorModel: type: string nullable: true lifecycleSource: type: string enum: - announced - inferred - manual lifecycleNote: type: string nullable: true sourceUrl: type: string nullable: true description: The provider page this entry was verified against. required: - provider - model - deprecatedAt - retiresAt - successorModel - lifecycleSource - lifecycleNote - sourceUrl Error: type: object properties: error: type: string description: Human-readable error message. example: Unauthorized code: type: string description: Machine-readable error code, when present. example: rate_limit_exceeded required: - error securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key description: >- Project API key. Manage keys in the Zespan dashboard under project settings. ````