API Changelog

v1.0.0 - 2026-03-01

Initial stable release of the Meister Bill API.

Added

  • Invoice management (create, read, update, delete)
  • Customer management
  • Product catalog
  • Webhook support
  • Rate limiting

Authentication

  • API key authentication via Bearer tokens
  • Test and live environment keys

Endpoints

Endpoint Methods
/v1/invoices GET, POST
/v1/invoices/{id} GET, PATCH, DELETE
/v1/invoices/{id}/send POST
/v1/customers GET, POST
/v1/customers/{id} GET, PATCH, DELETE
/v1/products GET, POST
/v1/products/{id} GET, PATCH, DELETE

Beta - 2026-02-01

Public beta release.

Features

  • Core invoicing functionality
  • Customer management
  • Basic webhooks

For upcoming features, see Ideas & Research.