Overview
Invoice Ninja v5 API is a Open Collection published by Invoice Ninja on the APIs.io network, version 5.0.
The collection contains 44 requests organised into 10 folders.
Tagged areas include Invoicing, Billing, Payments, Accounting, and Open-Source.
Requests & Folders
Authentication
Activities
Companies
Company Gateways
Client Gateway Tokens
Bank Integrations
Bank Transactions
Bank Transaction Rules
Charts
Settings
Related API Specs
Invoice Ninja Activities API (OpenAPI)
Invoice Ninja Authentication API (OpenAPI)
Invoice Ninja Bank Integrations API (OpenAPI)
Invoice Ninja Bank Transaction Rules API (OpenAPI)
Invoice Ninja Bank Transactions API (OpenAPI)
Invoice Ninja Charts API (OpenAPI)
Invoice Ninja Client Gateway Tokens API (OpenAPI)
Invoice Ninja Companies API (OpenAPI)
Invoice Ninja Company Gateways API (OpenAPI)
Invoice Ninja Settings API (OpenAPI)
Work with this as data
Every collection here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for collections
4 MCP tools reach this
find_collectionsBrowse and filter every collection in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This collection
curl "https://apis.io/api/v1/collections/open-invoice-ninja"
All collections
curl "https://apis.io/api/v1/collections?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.