AppMulti
One connector between Meta (WhatsApp Cloud API and Instagram Graph API) and any company's system. Its WhatsApp permissions passed Meta's App Review in July 2026.
- My role
- Creator and developer
- Period
- 2026
- Stack
- Cloudflare Workers, Hono, D1, Next.js, WhatsApp Cloud API, Instagram Graph API
What it does
- Receives Meta webhooks, turns 19 event types into one clean JSON and delivers it, signed, to each customer.
- API to send WhatsApp messages and templates, answer Instagram DMs, publish posts and moderate comments.
- Multi-tenant by design: it stores routing and encrypted tokens, never the customer's messages.
How it works
Webhooks workerValidates Meta's signature, finds the tenant and fans the normalized event out to its endpoints.
API workerHono on Cloudflare Workers: auth, sending, publishing, templates, consents and per-tenant rate limits.
StorageD1 holds tenants, accounts and AES-encrypted tokens; KV handles OAuth state, retries and a dead-letter queue.
PanelNext.js dashboard for inbox, templates, posts, number quality, audit log and API keys.
Spin-offsTempWhats and TempSocial were split from it as WhatsApp-only and Instagram-only apps for new Meta reviews.
More projects
- SmileIAManagement platform for dental clinics with an AI assistant that answers patients 24/7 on WhatsApp, Instagram, Messenger and the clinic's website.
- ProtocolosA system for clinics that sell follow-up programs of 3 to 12 months: the program, not the appointment, is the centre, from the first WhatsApp message to the renewal.
- TempWhatsA WhatsApp-only panel and connector split from AppMulti, built for a new Meta App Review: companies connect their number with Embedded Signup and answer customers from one inbox.
- TempSocialAn Instagram-only panel and connector split from AppMulti: companies connect their professional account with Instagram Login to answer DMs, moderate comments, publish and see insights. Submitted to Meta's App Review, waiting for approval.
- Temp.IA AdsA panel where agencies follow and manage their clients' Meta ad accounts, connected through Facebook Login for Business.
- HospedIAThe same AI-first approach for hospitality: an assistant and back office for small accommodation businesses.
- Garimpeiro de OfertasA Python bot that hunts deals on Mercado Livre and Amazon and posts them, with affiliate links, to Telegram and WhatsApp channels on a schedule.
- TOTVS Protheus at aFillFour years developing aFill's foreign-trade add-on for TOTVS Protheus, Brazil's most used ERP: the import, export and DUIMP processes its client companies run every day.