# Nepzio for developers

> The Nepzio API (https://api.nepzio.com/v1/) and webhooks: read and change a Nepzio store’s products, stock, orders and customers from your own server, with a secret key per store. JSON, cursor pagination, RFC 9457 errors, Idempotency-Key on POSTs, Standard Webhooks signatures.

- OpenAPI 3.1 document: https://api.nepzio.com/v1/openapi.json
- Everything below in one file: https://developers.nepzio.com/llms-full.txt

## Get started

- [Overview](https://developers.nepzio.com/index.md): What the Nepzio API and webhooks let you build.
- [Quickstart](https://developers.nepzio.com/quickstart.md): Make a key, read your store, list orders and get a webhook in five minutes.

## Concepts

- [Authentication](https://developers.nepzio.com/authentication.md): Secret keys, scopes, rolling and revoking.
- [Errors](https://developers.nepzio.com/errors.md): The error format, status codes and every error code.
- [Pagination and syncing](https://developers.nepzio.com/pagination.md): Cursor pages, time filters and syncing only what changed.
- [Idempotency](https://developers.nepzio.com/idempotency.md): Retrying POSTs safely with Idempotency-Key.
- [Rate limits](https://developers.nepzio.com/rate-limits.md): Requests per second and per day, by plan, and how to stay within them.
- [Data formats](https://developers.nepzio.com/data-formats.md): Money in paisa, times, ids, and what may grow.
- [Versioning](https://developers.nepzio.com/versioning.md): v1 changes only by adding; how breaking changes are announced.

## Webhooks

- [Webhooks](https://developers.nepzio.com/webhooks.md): Events, the request, verifying signatures, retries.

## Guides

- [Send orders to another system](https://developers.nepzio.com/sync-orders.md): Webhooks plus a periodic sync, saving orders by id.
- [Keep stock in sync](https://developers.nepzio.com/sync-stock.md): Set or adjust stock by SKU, and read stock levels.
- [Going live checklist](https://developers.nepzio.com/go-live.md): Keys, requests, webhooks and data, before relying on an integration.

## More

- [Changelog](https://developers.nepzio.com/changelog.md): Every change to the API.
- [API terms of use](https://developers.nepzio.com/terms.md): Terms for using the Nepzio API.
- [Security](https://developers.nepzio.com/security.md): Reporting a problem, and how the API protects stores.