# sproof sign API

> European digital-signature API for eIDAS-compliant SES, AES, and QES workflows.

## Core references

- [OpenAPI Spec](https://sign.sproof.com/api/v1/documentation/yaml): Machine-readable API reference.
- [API Documentation UI](https://docs.sproof.com/): Human-readable interactive reference.

## Integration guides

- [Integration Strategies](https://docs.sproof.com/guides/integration-strategies.md): How to choose between coordinates, text placeholders, workflow placeholders, and draft mode.
- [Academy Overview](https://docs.sproof.com/guides/academy-overview.md): Product concepts and API learning map.

## Authentication

All API calls require a private API token in the request body. Never expose this token in client-side code.