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Telegram

Fastest start. Create a bot with @BotFather, put the token in the runtime env, and say hello.

TELEGRAM_BOT_TOKEN=...

Email

Official IMAP/SMTP. Works with any provider that offers an app password. Useful for the inbox loop.

IMAP_HOST=... IMAP_USER=... IMAP_PASSWORD=...
SMTP_HOST=... SMTP_USER=... SMTP_PASSWORD=...

Slack

Incoming webhook for outbound, events endpoint for mentions.

SLACK_WEBHOOK_URL=... SLACK_SIGNING_SECRET=...

WhatsApp

Official Business Cloud API only. Phase 2, after revenue. No unofficial bridges — account safety matters.

WA_PHONE_NUMBER_ID=... WA_ACCESS_TOKEN=... WA_VERIFY_TOKEN=...

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