# ChatInvoice Public API

> Issue legally valid Israeli accounting documents (quotes, invoices, receipts, credit notes) for a ChatInvoice business from any external system. Base URL https://api.chat-invoice.co.il/v1 · Bearer API key (ci_live_…) · JSON · ILS · dates YYYY-MM-DD (Asia/Jerusalem) · server-to-server only.

Key facts: the caller never sends document numbers, VAT rates, totals or allocation numbers — the engine computes them from the business settings and Israeli law. POST /v1/documents requires an Idempotency-Key header. Exempt dealers / NPOs cannot issue tax invoices (use receipt / proforma). Accounting documents are never cancelled — issue a credit_note with based_on. Documents are always issued; allocation numbers and customer delivery are best-effort and reported in allocation.status / delivery.status.

## Docs
- [Guide (English)](https://api.chat-invoice.co.il/docs)
- [Guide (Hebrew)](https://api.chat-invoice.co.il/docs/he)
- [Reference — endpoints & fields](https://api.chat-invoice.co.il/docs/reference)
- [Error catalog](https://api.chat-invoice.co.il/docs/errors)
- [Integration guide for AI agents](https://api.chat-invoice.co.il/docs/agents)
- [Changelog](https://api.chat-invoice.co.il/docs/changelog)

## Machine-readable
- [OpenAPI 3.1 (YAML)](https://api.chat-invoice.co.il/openapi.yaml)
- [OpenAPI 3.1 (JSON)](https://api.chat-invoice.co.il/openapi.json)
- [Full docs as text](https://api.chat-invoice.co.il/llms-full.txt)
- Error catalog as JSON: GET https://api.chat-invoice.co.il/v1/errors