4 WhatsApp providers with automatic fallback:
1. Green API (green-api.com) — free dev tier, simplest setup
2. Ultramsg (ultramsg.com) — existing integration, cleaned
3. Fonnte (fonnte.com) — ultra-cheap alternative
4. Meta Cloud API (official) — most reliable, needs verification
send_whatsapp_smart() tries each configured provider in order
until one succeeds. No hardcoded credentials (removed leaked
Ultramsg token from outreach_engine.py).
New endpoints:
- GET /os/whatsapp-providers — check which are configured
- POST /os/test-send — test send via smart chain
Full OS /os/process-and-act now uses smart multi-provider
instead of Ultramsg-only.
Env vars per provider:
- GREEN_API_INSTANCE_ID + GREEN_API_TOKEN
- ULTRAMSG_INSTANCE_ID + ULTRAMSG_TOKEN
- FONNTE_TOKEN
- WHATSAPP_API_TOKEN + WHATSAPP_PHONE_NUMBER_ID
https://claude.ai/code/session_01W1rJthWDkasijTdXCfxVHs
