K-φ (K-Phi) Open Invoices API
The Open Invoices API from K-φ (K-Phi) — 1 operation(s) for open invoices.
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curl "https://apis.io/api/v1/apis/k-phi-com:k-phi-com-open-invoices-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: K-φ Open Invoices 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: Open Invoices
paths:
/api/v1/open_invoices:
get:
operationId: get_open_invoices
summary: Open invoices, receivable and payable
x-audience: data
description: Invoices, receivables (AR, default), payables (AP) or both. By default the OPEN ones with their aging per currency (not due, 1-30, 31-60, 61-90, over 90 days) and the counterparties with the most overdue. With status paid or all, or a date range (by issue or due date), it lists every matching invoice with totals per currency (amount and still open). Filter by entity, counterparty or invoice number (the number gives that invoice’s detail). Use for "who owes me money", "what is overdue", "what did customer X pay this year", "invoices issued in March", "show invoice 1042".
x-scope: read:cash
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: direction
in: query
required: false
schema:
type: string
- name: status
in: query
required: false
description: Default open
schema:
type: string
- name: overdue_only
in: query
required: false
schema:
type: boolean
- name: from
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
- name: to
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
- name: date_field
in: query
required: false
description: Which date from / to apply to; default issue
schema:
type: string
- name: entity
in: query
required: false
description: Entity code
schema:
type: string
- name: counterparty
in: query
required: false
description: Customer or supplier name (part of it) or code
schema:
type: string
- name: number
in: query
required: false
description: 'An invoice number: that invoice only'
schema:
type: string
- name: limit
in: query
required: false
description: 1 to 100, default 25
schema:
type: number
tags:
- Open Invoices
post:
operationId: post_open_invoices
summary: Open invoices, receivable and payable
x-audience: data
description: Invoices, receivables (AR, default), payables (AP) or both. By default the OPEN ones with their aging per currency (not due, 1-30, 31-60, 61-90, over 90 days) and the counterparties with the most overdue. With status paid or all, or a date range (by issue or due date), it lists every matching invoice with totals per currency (amount and still open). Filter by entity, counterparty or invoice number (the number gives that invoice’s detail). Use for "who owes me money", "what is overdue", "what did customer X pay this year", "invoices issued in March", "show invoice 1042".
x-scope: read:cash
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:
direction:
type: string
enum:
- AR
- AP
- both
status:
type: string
enum:
- open
- paid
- all
description: Default open
overdue_only:
type: boolean
from:
type: string
description: YYYY-MM-DD
to:
type: string
description: YYYY-MM-DD
date_field:
type: string
enum:
- issue
- due
description: Which date from / to apply to; default issue
entity:
type: string
description: Entity code
counterparty:
type: string
description: Customer or supplier name (part of it) or code
number:
type: string
description: 'An invoice number: that invoice only'
limit:
type: number
description: 1 to 100, default 25
additionalProperties: false
tags:
- Open Invoices
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