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

# Description

> Accounting, journals, invoicing, and general ledger operations.

The **Books API** handles double-entry accounting: chart of accounts, journal entries, invoices, bills, banking, and payroll GL integration.

## Base path

`/api/v1` (accounting routes are not prefixed with a product slug)

## Authorization

Developer JWT + API key on every request. See [Authorization](/getting-started/authorization).

## Operations and monitoring

| Endpoint              | Purpose                  |
| --------------------- | ------------------------ |
| `GET /api/v1`         | Service root             |
| `GET /api/v1/metrics` | Prometheus scrape target |

## Typical integration flow

1. Set up chart of accounts and fiscal periods
2. Post journal entries or create invoices/bills
3. Reconcile banking and generate financial reports (PDF export via [Utils](/utils/overview))

<CardGroup cols={2}>
  <Card title="Books product guide" icon="book-open" href="/books/overview">
    GL, invoicing, and payroll integration.
  </Card>

  <Card title="How-to guides" icon="book-open" href="/guides/books/create-invoice">
    Invoices, bills, journal entries, and reconciliation.
  </Card>
</CardGroup>