Products / Open source

ANFA WhatsApp API

Open-source, self-hosted WhatsApp integration and messaging automation library.

Overview

ANFA WhatsApp API Architectural Frame

Built with ANFA's local-first architecture. User data and state remain enclosed inside the client perimeter.

An open-source Node.js library for establishing direct socket connections with the WhatsApp multi-device web protocol. Self-hosted on your own infrastructure with zero external telemetry.

Where it runs

An honest breakdown of local computation versus network dependencies:

Stays on your device Local
  • Local cryptographic session management and QR authentication [CONFIRM]
  • Direct peer socket connection handling on your host machine [CONFIRM]
Uses the network Network
  • WhatsApp infrastructure network connectivity for message delivery [CONFIRM]

Privacy

Product Privacy Statement

Self-hosted software library. All authentication tokens and communication payloads remain on your host server. ANFA Technology does not relay or monitor messages.

Requirements

System Requirements: Node.js 18.0+ or Docker runtime environment.

Changelog

  • v2.0.1 August 2026

    Updated multi-device connection protocol and session caching.

  • v1.0.0 March 2026

    Initial open-source release.