> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prisme.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Retrieve a document

> Indexing state is read here (`status`, `last_error`,
`indexed_at`) - there is no separate jobs resource. Requires
`reader`+.




## OpenAPI

````yaml /api-reference/storage/swagger.yml get /v1/knowledge_bases/{knowledgeBaseId}/documents/{documentId}
openapi: 3.0.3
info:
  version: 1.0.0
  title: Knowledges API
  description: >
    Public REST API for the Prisme.ai Knowledges (storage) workspace: knowledge
    bases, documents (uploaded files, web pages, remote files, connector
    documents), recurring web-crawl sources, semantic search, access control,
    per-knowledge-base API keys, and skills.


    Resource identifiers use the physical prefixes emitted by the implementation
    (`vs_` knowledge base, `vsf_` document, `seed_` web source, `kb-` API-key
    slug).


    This spec documents the public REST surface only. Internal helpers (private
    automations prefixed with `_`) and admin/GDPR lifecycle operations are not
    part of the public contract.
  contact:
    name: Prisme.ai
    url: https://prisme.ai
servers:
  - url: https://{host}/v2/workspaces/slug:storage/webhooks
    description: Prisme.ai workspace webhooks
    variables:
      host:
        default: api.studio.prisme.ai
        description: API host (override for self-hosted or sandbox)
security:
  - BearerAuth: []
  - WorkspaceApiKeyAuth: []
tags:
  - name: Knowledge Bases
    description: >-
      Create, list, read, update, and delete knowledge bases (vector-backed
      document stores).
  - name: Documents
    description: >-
      Ingest and manage documents (uploaded files, web pages, remote files,
      connector documents) and their indexing.
  - name: Web Sources
    description: >-
      Recurring web crawl seeds that discover and index pages into a knowledge
      base.
  - name: Search
    description: Semantic search over a knowledge base.
  - name: Access
    description: Per-knowledge-base access bindings (user, group, org, agent principals).
  - name: API Keys
    description: Per-knowledge-base API keys for connector authentication.
  - name: Stats
    description: Aggregate dashboard statistics.
  - name: Skills
    description: Prompt/instruction registry entries.
paths:
  /v1/knowledge_bases/{knowledgeBaseId}/documents/{documentId}:
    parameters:
      - name: knowledgeBaseId
        in: path
        required: true
        schema:
          type: string
          pattern: ^vs_[A-Za-z0-9-]+$
          maxLength: 128
        description: >-
          Knowledge base id. Legacy physical prefix `vs_` (the `kb_` rename is
          deferred).
      - name: documentId
        in: path
        required: true
        schema:
          type: string
          pattern: ^vsf_[A-Za-z0-9-]+$
          maxLength: 128
        description: >-
          Document id. Legacy physical prefix `vsf_` (the `doc_` rename is
          deferred).
    get:
      tags:
        - Documents
      summary: Retrieve a document
      description: |
        Indexing state is read here (`status`, `last_error`,
        `indexed_at`) - there is no separate jobs resource. Requires
        `reader`+.
      operationId: getDocument
      responses:
        '200':
          description: The document.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Document'
        '401':
          $ref: '#/components/responses/Error401'
        '403':
          $ref: '#/components/responses/Error403'
        '404':
          $ref: '#/components/responses/Error404'
      security:
        - BearerAuth: []
        - WorkspaceApiKeyAuth: []
components:
  schemas:
    Document:
      type: object
      description: |
        Association between a source and a knowledge base - the only
        membership model (no `files` registry). The server computes
        `source_key` and dedups on `(knowledge_base_id, source_key)`.

        `fetch_url` is intentionally ABSENT from this schema: it is
        write-only at the API boundary (may embed credentials). For
        `source_type: uploaded_file` no fetch URL is stored at all -
        storage mints a fresh short-lived one (as a privileged
        workspace) whenever the crawler needs bytes, so expired-token
        failures are structurally impossible for uploaded files.
      required:
        - id
        - object
        - knowledge_base_id
        - source_type
        - source_key
        - source_url
        - origin
        - status
        - created_at
      properties:
        id:
          type: string
          pattern: ^vsf_[A-Za-z0-9-]+$
          maxLength: 128
        object:
          type: string
          enum:
            - knowledge_base.document
        knowledge_base_id:
          type: string
          pattern: ^vs_[A-Za-z0-9-]+$
        source_type:
          type: string
          enum:
            - uploaded_file
            - remote_file
            - web_page
            - connector_document
          description: |
            Discriminator. `uploaded_file` for platform-native files
            (attached by `native_file_id`); `remote_file` for document
            bytes at an arbitrary URL; `web_page` for HTML pages
            (single URL or crawl-discovered); `connector_document` for
            sources owned by a third-party connector.
        source_key:
          type: string
          maxLength: 2048
          readOnly: true
          description: |
            Server-computed canonical source URI; the dedup key,
            UNIQUE with `knowledge_base_id`.
            `prisme-file://{workspace_id}/{native_file_id}` for
            uploaded files (stable across renames - never the rebuilt
            native URL); `web://{normalized_url}` otherwise.
            Normalization is conservative (strip fragment, lowercase
            scheme + host, normalize percent-encoding, strip default
            ports - query params untouched) and shared with the
            crawler's canonicalization.
        source_url:
          type: string
          format: uri
          description: |
            User-facing provenance URL - citations, UI links, audit
            logs. Stable by construction for connector documents
            (e.g. SharePoint webUrl) and web pages (the page URL). For
            uploaded files, a display URL (caller-overridable at
            attach time); downloadable links are minted lazily via
            `GET /documents/{document_id}/source_url`.
        native_file_id:
          type: string
          description: 'Platform-native file id when `source_type: uploaded_file`.'
          nullable: true
        native_file_workspace_id:
          type: string
          description: >-
            Workspace owning the native file. Defaults to the caller's
            workspace.
          nullable: true
        origin:
          type: string
          enum:
            - user
            - web_source
          description: |
            Provenance, set at row creation and never overwritten by
            seed adoption. Seed deletion cascades only over
            `origin: web_source` rows - a manually attached page later
            discovered by a seed keeps `origin: user` and survives the
            seed's deletion (losing only its `web_source_id`).
        web_source_id:
          type: string
          pattern: ^seed_[A-Za-z0-9-]+$
          description: |
            Primary producing/adopting seed (origin-of-record), when
            any. Multi-attribution (a page reachable from several
            seeds) is carried by `parent_web_source_ids`.
          nullable: true
        parent_web_source_ids:
          type: array
          readOnly: true
          items:
            type: string
            pattern: ^seed_[A-Za-z0-9-]+$
          description: |
            All seeds whose crawl scope covers this page
            (multi-attribution, §F-5). Backs per-seed page counts and
            seed cascade-delete: deleting a seed removes it from this
            array and drops the row only when the array empties AND
            `origin: web_source`. Empty/absent ⇒ unattributed (counted
            in the `/web_sources` summary residual).
        crawler_document_id:
          type: string
          description: Crawler-side document id, set once the crawler has seen this source.
          nullable: true
        status:
          type: string
          enum:
            - queued
            - in_progress
            - completed
            - failed
            - fetch_expired
            - rejected
          description: |
            Authoritative indexing status. Transitions are guarded by
            `index_generation` - stale or duplicate callbacks are
            ignored. `fetch_expired` is connector-facing: the stored
            ephemeral `fetch_url` no longer works and the owning
            connector must refresh it via the upsert (`POST
            /documents` with the same `source_url`); it is never a
            user-actionable error and never occurs for
            `uploaded_file` sources. `rejected` means an external hook
            (`before_file_ingest` / `after_file_parse`) blocked the
            content - see `rejection_reason` / `rejected_by`.
        index_generation:
          type: integer
          minimum: 1
          readOnly: true
          description: |
            Monotonically increasing per document; incremented on
            every (re)index. Search reads only the latest committed
            generation; a reindex swaps the new generation in only on
            success, so the previous good vectors remain searchable on
            failure.
        filename:
          type: string
          maxLength: 255
          nullable: true
        mime_type:
          type: string
          nullable: true
        bytes:
          type: integer
          minimum: 0
          nullable: true
        parser:
          type: string
          description: Parser used at last successful parse.
          nullable: true
        parsed_at:
          type: integer
          nullable: true
        page_count:
          type: integer
          minimum: 0
          nullable: true
        char_count:
          type: integer
          minimum: 0
          nullable: true
        chunking_strategy:
          type: object
          additionalProperties: true
          description: Per-document override of the store default.
          nullable: true
        scope:
          type: string
          enum:
            - knowledge
            - conversation
          default: knowledge
        conversation_id:
          type: string
          nullable: true
        expires_at:
          type: integer
          description: Unix seconds. TTL for conversation-scope documents.
          nullable: true
        tags:
          type: object
          additionalProperties: true
          description: Caller-supplied tags. Editable via PATCH. Filterable on list.
        metadata:
          type: object
          additionalProperties: true
          description: |
            Connector-supplied structured context (e.g. `connector`,
            `site_id`, `drive_item_id`, `version`). Editable via PATCH.
        chunks_count:
          type: integer
          minimum: 0
          nullable: true
        vectors_count:
          type: integer
          minimum: 0
          nullable: true
        last_error:
          type: object
          description: |
            Most recent failure context. Cleared when a new indexing
            attempt transitions to `in_progress`. `code:
            SOURCE_UNAVAILABLE` signals a dangling reference (e.g. the
            native file was deleted out-of-band - native files emit no
            lifecycle events, so this surfaces at the next fetch).
          properties:
            code:
              type: string
            message:
              type: string
            details:
              type: object
              additionalProperties: true
            timestamp:
              type: integer
          nullable: true
        errors:
          type: array
          readOnly: true
          description: |
            Bounded retry/failure history (the most recent failure is
            also in `last_error`). For debugging repeated index
            failures.
          items:
            type: object
            properties:
              code:
                type: string
              message:
                type: string
              timestamp:
                type: integer
          nullable: true
        message:
          type: string
          description: |
            Human-readable narrative status, distinct from `last_error`
            (e.g. a partial-success or skipped note).
          nullable: true
        failed_at:
          type: integer
          description: Unix seconds of the most recent failure.
          nullable: true
        rejection_reason:
          type: string
          description: |
            Set when `status: rejected`. Why an external hook blocked
            the content. Surfaced to the user only when the resolved
            hook config sets `expose_reason: true`.
          nullable: true
        rejected_by:
          type: string
          description: Identifier of the hook that produced the rejection.
          nullable: true
        indexed_at:
          type: integer
          description: Unix seconds. Set when the document reaches `completed`.
          nullable: true
        created_at:
          type: integer
        updated_at:
          type: integer
      example:
        id: vsf_550e8400-e29b-41d4-a716-446655440000
        object: knowledge_base.document
        knowledge_base_id: vs_7c9e6679-7425-40de-944b-e07fc1f90ae7
        source_type: connector_document
        source_key: >-
          web://https://contoso.sharepoint.com/sites/x/Shared%20Documents/report.pdf
        source_url: https://contoso.sharepoint.com/sites/x/Shared%20Documents/report.pdf
        native_file_id: null
        native_file_workspace_id: null
        origin: user
        web_source_id: null
        crawler_document_id: crawl_doc_8842
        status: completed
        index_generation: 3
        filename: report.pdf
        mime_type: application/pdf
        bytes: 234567
        parser: tika
        parsed_at: 1717000000
        page_count: 12
        char_count: 48213
        chunking_strategy: null
        scope: knowledge
        conversation_id: null
        expires_at: null
        tags:
          project: contracts-2026
        metadata:
          connector: sharepoint
          site_id: site_123
          drive_item_id: item_456
          version: '42'
        chunks_count: 37
        vectors_count: 37
        last_error: null
        indexed_at: 1717000050
        created_at: 1714972900
        updated_at: 1717000050
    Error:
      type: object
      description: |
        Single error envelope shared by every non-2xx response. `code`
        is the stable machine-readable identifier; `message` is the
        human-readable text; `details` is optional structured context.
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
              example: VALIDATION_ERROR
            message:
              type: string
            details:
              type: object
              additionalProperties: true
      required:
        - error
  responses:
    Error401:
      description: Authentication missing or invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            unauthenticated:
              value:
                error:
                  code: UNAUTHENTICATED
                  message: Authentication required.
    Error403:
      description: Authentication present, authorization denied.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            forbidden:
              value:
                error:
                  code: FORBIDDEN
                  message: Caller is not allowed to access this resource.
            hook_rejected:
              summary: An external content hook blocked ingestion (sync)
              value:
                error:
                  code: HOOK_REJECTED
                  message: Content was rejected by a compliance hook.
                  details:
                    rejected_by: hook_pii_filter
                    rejection_reason: detected_unmasked_pii
    Error404:
      description: Resource does not exist or is not visible to the caller.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            not_found:
              value:
                error:
                  code: NOT_FOUND
                  message: knowledge_base.document not found.
                  details:
                    resource: knowledge_base.document
                    id: vsf_unknown
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        User session JWT or instance API key (`iak_*`). Send as `Authorization:
        Bearer <token>`.
    WorkspaceApiKeyAuth:
      type: apiKey
      in: header
      name: x-prismeai-api-key
      description: Workspace- or knowledge-base-scoped API key.

````