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

# List machine changes to facts

> Every silent mutation a re-read made to a stored fact — `text_updated`, `retired` (the page stopped saying it), `reclaimed` (it came back), `merged` (folded into a duplicate). Newest first. Filters: `source_id`, `fact_id`, `kind`, `reverted` (`true`|`false`).




## OpenAPI

````yaml https://app.pepline.ai/api/v1/openapi.yaml get /knowledge_fact_changes
openapi: 3.1.0
info:
  title: pepline API
  version: '1'
  description: |
    The pepline knowledge ingestion API: push knowledge into your
    organization's library from your own systems — CMS hooks, sync scripts,
    Zapier/Make/n8n scenarios — and keep whole websites fresh. One inbound
    API instead of N connectors; you own the trigger, we own idempotency.
servers:
  - url: https://app.pepline.ai/api/v1
security:
  - bearerAuth: []
tags:
  - name: Organization
    description: The identity behind your key — confirm it works and read your agent slugs.
  - name: Knowledge sources
    description: >-
      Push and sync the knowledge your agents stand on — text, files, pages,
      whole websites.
  - name: Knowledge facts
    description: >-
      Triage the atomic knowledge your sources yielded — review, edit, archive,
      tier, per-agent scoping.
  - name: Knowledge gaps
    description: >-
      The questions leads asked that your material could not answer — resolve or
      dismiss them.
  - name: Ingestion instructions
    description: >-
      "Look for" asks — what the reader should specifically capture on a source,
      a page, or around a fact.
  - name: Agents
    description: List and provision agents, and tune each agent's widget settings.
  - name: Conversations
    description: >-
      Read the conversations your agents have held — transcripts, captured
      answers, verdicts.
  - name: Services
    description: The offerings your agents present and reason about.
  - name: Fit criteria
    description: What makes a good or poor lead — the signals your agents qualify against.
  - name: Voice profiles
    description: How your agents sound — tone, formality, phrasing.
  - name: Identities
    description: >-
      The personas your agents act as for outward operations — sender name,
      address, signature.
  - name: Prompt templates
    description: >-
      Versioned prompt bodies per kind — author a new version, activate any
      prior one.
  - name: Deliverable templates
    description: >-
      The A/B variants of the wrap-up document — sections and guidance per
      variant.
  - name: Flow
    description: >-
      Author an agent's conversation — its phases and the answers each one
      captures.
  - name: Catalog
    description: >-
      Draft services, voice, and fit criteria from your knowledge, then accept
      or dismiss the proposals.
  - name: Onboarding
    description: >-
      Where the organization stands with setup — stage, blockers, what awaits
      review.
paths:
  /knowledge_fact_changes:
    get:
      tags:
        - Knowledge facts
      summary: List machine changes to facts
      description: >
        Every silent mutation a re-read made to a stored fact — `text_updated`,
        `retired` (the page stopped saying it), `reclaimed` (it came back),
        `merged` (folded into a duplicate). Newest first. Filters: `source_id`,
        `fact_id`, `kind`, `reverted` (`true`|`false`).
      operationId: listKnowledgeFactChanges
      parameters:
        - name: source_id
          in: query
          schema:
            type: integer
        - name: fact_id
          in: query
          schema:
            type: integer
        - name: kind
          in: query
          schema:
            type: string
            enum:
              - text_updated
              - retired
              - reclaimed
              - merged
        - name: reverted
          in: query
          schema:
            type: string
            enum:
              - 'true'
              - 'false'
        - name: limit
          in: query
          schema:
            type: integer
            default: 25
            maximum: 100
        - name: starting_after
          in: query
          schema:
            type: integer
      responses:
        '200':
          description: The changes.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/KnowledgeFactChangeList'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    KnowledgeFactChangeList:
      type: object
      required:
        - object
        - data
        - has_more
      properties:
        object:
          type: string
          const: list
        data:
          type: array
          items:
            $ref: '#/components/schemas/KnowledgeFactChange'
        has_more:
          type: boolean
    KnowledgeFactChange:
      type: object
      required:
        - object
        - id
        - kind
        - source_id
        - before_text
        - revertible
        - created_at
      properties:
        object:
          type: string
          const: knowledge_fact_change
        id:
          type: integer
        kind:
          type: string
          enum:
            - text_updated
            - retired
            - reclaimed
            - merged
        fact_id:
          type:
            - integer
            - 'null'
        source_id:
          type: integer
        entry_id:
          type:
            - integer
            - 'null'
        before_text:
          type: string
        after_text:
          type:
            - string
            - 'null'
        revertible:
          type: boolean
        reverted_at:
          type:
            - string
            - 'null'
          format: date-time
        created_at:
          type: string
          format: date-time
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - type
            - code
            - message
          properties:
            type:
              type: string
              enum:
                - authentication_error
                - invalid_request_error
                - rate_limit_error
                - api_error
            code:
              type: string
              enum:
                - missing_api_key
                - invalid_api_key
                - resource_missing
                - method_not_allowed
                - resource_archived
                - idempotency_conflict
                - parameter_invalid
                - parameter_missing
                - parameter_unknown
                - organization_required
                - organization_paused
                - rate_limited
                - flow_invalid
                - organization_unverified
                - experiment_running
                - resource_in_use
                - not_revertible
                - credits_exhausted
                - internal
            message:
              type: string
            param:
              type: string
  responses:
    Unauthorized:
      description: Missing, malformed, or revoked API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Your secret key (pep_sk_…) from Settings → API. Keys are org-scoped;
        treat them like passwords.

````