Plugiverse

Products

Practical reference material for developers building on the WhatsApp Business Platform, written by our team at Plugiverse from hands-on work on business voice, messaging and automation tools. Digital downloads, delivered straight after payment.

Calling API Field Guide (2026 edition)

USD 29One-time purchase

Meta's docs tell you what the Calling API endpoints are. This guide covers what tends to break when you put them to work.

  • Enabling calling and checking it through the Graph API
  • Call webhooks handled safely: raw-body HMAC, idempotency, fast acknowledgement
  • Answering with WebRTC: pre_accept then accept, non-trickle ICE, TURN relay on PaaS hosts
  • Business-initiated calls: permission requests and limits
  • SIP vs WebRTC, an error-triage table and a go-live checklist

A 21-page PDF (11 chapters, 2 appendices) and 4 Node.js 18+ code files with no credentials (calling settings, webhook receiver, answering a call, and an outbound call with the permission request). Written against Meta's docs in October 2026; each chapter names the Meta page to re-check.

Buy the guide – USD 29

Cloud API Starter Pack for n8n

USD 19One-time purchase

Three importable workflows that connect a business number on Meta's Cloud API to n8n. No paid or community nodes.

  • Webhook hub: verification handshake, optional signature check, routing of message, status and call events
  • Outbound API: one key-protected endpoint your shop or CRM can call to send approved templates
  • Daily health check: a 07:00 alert to Slack, Teams or Discord if calling is disabled or a template is rejected or paused

Tested on n8n 2.45.5 against a mock Graph API; test with your own number before relying on it. You need your own Cloud API number, access token and n8n instance. The README puts setup at about 20 minutes if you already have those.

Buy the starter pack – USD 19

Business Message Template Library

Pay what you want, from USD 9USD 12 suggested

39 templates written to Meta's published template rules: 28 Utility and 11 opt-in Marketing, each with sample values for its variables.

  • Orders, appointments, billing and support
  • Opt-in marketing: back in stock, abandoned cart, loyalty, events and more
  • A rules cheat sheet and an opt-in checklist based on WhatsApp's Business Messaging Policy
  • Supplied as CSV, JSON and Markdown

Approval is always Meta's decision. These templates have not been submitted to Meta; you submit them under your own account. Not legal advice.

Buy the library – from USD 9

Before you buy

Seller
Plugiverse SA Ltd, a UK company. Checkout and receipts are handled by Polar, the merchant of record, which also charges any sales tax or VAT due.
Delivery
Download access straight after payment.
Support
Sold as-is: a one-time download with no support or updates included. Meta's official developer docs remain the reference.
Refunds
Digital download: all sales are final once the files are delivered. If a file doesn't arrive or is defective, you get a replacement or a refund. This doesn't limit any non-waivable rights under your local consumer law. Refund requests go through Polar.
Licence
Use in your own and your clients' projects. No redistribution, resale or publishing of the files, in whole or in part.
Questions
support@plugiverse.biz (delivery or file problems)