K-φ (K-Phi) Valuation History API

openapi: 3.2.0
info:
  title: K-φ Valuation History API
  version: 1.0.0
  description: 'Read your K-φ data (statements, cash, forecasts, scenarios) and save scenarios. The tenant always comes from the credential. Every response is { data, meta }; every error { error: { code, message } }.'
tags:
- name: Valuation History
paths:
  /api/v1/valuation_history:
    get:
      operationId: get_valuation_history
      summary: Valuation history
      x-audience: data
      description: 'The value of a case over time (one point per day it was computed) and the value walk from the previous point to the latest: how much each group moved the value (operating performance, working capital, net debt, market multiples, cost of capital, method weights), adding up to the total change. Use it to answer "why did the value change?".'
      x-scope: read:forecast
      x-extension-only: false
      security:
      - bearer: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                  meta:
                    type: object
                    properties:
                      api:
                        type: string
                      capability:
                        type: string
                      at:
                        type: string
        '401':
          description: No or invalid credential
        '403':
          description: Scope, extension or Builder Mode refused
        '422':
          description: The capability refused the input
        '429':
          description: Rate or daily quota reached
      parameters:
      - name: case_id
        in: query
        required: false
        description: The valuation case id, from kphi_list_valuations.
        schema:
          type: string
      tags:
      - Valuation History
    post:
      operationId: post_valuation_history
      summary: Valuation history
      x-audience: data
      description: 'The value of a case over time (one point per day it was computed) and the value walk from the previous point to the latest: how much each group moved the value (operating performance, working capital, net debt, market multiples, cost of capital, method weights), adding up to the total change. Use it to answer "why did the value change?".'
      x-scope: read:forecast
      x-extension-only: false
      security:
      - bearer: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                  meta:
                    type: object
                    properties:
                      api:
                        type: string
                      capability:
                        type: string
                      at:
                        type: string
        '401':
          description: No or invalid credential
        '403':
          description: Scope, extension or Builder Mode refused
        '422':
          description: The capability refused the input
        '429':
          description: Rate or daily quota reached
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                case_id:
                  type: string
                  description: The valuation case id, from kphi_list_valuations.
              required:
              - case_id
              additionalProperties: false
      tags:
      - Valuation History
components:
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      description: API key, OAuth access token, extension key (kphix_…) or extension session token (kxs1.…)
    apiKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key with the gl:ingest scope (ERP connectors)
x-scopes:
  gl:ingest: Push GL data from an ERP (/api/gl/mappings, /api/gl/schema, /api/gl/ingest)
  mcp:tools: All read scopes (read:gl read:cash read:forecast read:sheets read:data)
  mcp:write: All MCP write scopes (write:scenarios write:config write:data write:sheets)
  read:gl: Read statements, KPIs, ratios, GL lines, versions, dimensions, variance, data lake, FX rates and FP&A settings
  read:cash: Read bank positions, transactions, balance history, cash forecast, AR/AP
  read:forecast: Read forecasts, budgets, scenarios (levers, list, run) and valuations
  read:sheets: Read the Google Sheets registered as inputs of the account, each tab as JSON (/api/v1/sheets/…), and their webhooks' deliveries (2026-11-02)
  write:sheets: 'Register and remove the Google Sheets the account serves as JSON (read only: K-φ never writes to a sheet), and the webhooks told when one changes'
  read:data: 'Read the Data library (/api/v1/data/…): market, macro and public series with their source and licence (2026-11-03)'
  write:vars: 'Define, load and remove the account''s own variables (var.<CODE>) of the Data library, and nothing else: never the books (2026-11-05)'
  write:scenarios: Save scenarios (Simulation page)
  write:config: 'Change tenant configuration: flow rules, classification overrides, budget versions and templates, valuation refresh'
  write:data: 'Import rows from a spreadsheet Claude read (Excel in, 2026-10-29): cash forecasts, a GL version, a bank statement; preview first, then commit'
  run:build: 'Call the BUILD''s functions that only read (POST /api/v1/fn/<name>): the logic the account built, served as an API (2026-10-29)'
  run:build:write: 'Also call the BUILD''s functions that change data (declared "writes": true in its kphi.json)'
x-limits:
  per_ip_per_min: 200
  extension_per_min: 120
  extension_per_day: 20000