WhatsApp Cloud API

Overview

The WhatsApp Cloud API skill is a structured reference for AI coding assistants that need to work with Meta’s official WhatsApp Business Platform. Instead of digging through Facebook developer docs every time you need to send a message, upload media, or verify a webhook, your agent loads the relevant specification on demand — with real payload examples, error codes, and best practices baked in.

This skill follows a progressive disclosure design. It loads only ~100 tokens at startup (just the skill name and a brief description). When your agent detects WhatsApp-related work, it loads the main reference (~4500 tokens). Specific topic files — messaging, templates, webhooks, media — stay at zero tokens until your agent actually needs them. The result is a comprehensive reference that doesn’t bloat your context window.

What It Includes

Why This Matters

The WhatsApp Cloud API is powerful but verbose. A typical message-send payload requires correct formatting of the phone number ID, recipient number in E.164, message type headers, and optional context fields — one wrong field and you get a generic 400 error with no hints about what went wrong. This skill eliminates the back-and-forth by embedding the exact schemas your agent needs, tested against Meta’s actual API responses.

How to Install and Use It

# Install the skill
npx skills add https://github.com/bellopushon/whatsapp-cloud-api --skill whatsapp-cloud-api

# Then ask your agent:
# "Send a WhatsApp text message to +1-555-0123 saying 'Your order is confirmed'"
# "Upload this image as a WhatsApp media object"
# "Verify the webhook callback from WhatsApp"

Once installed, your AI agent can reference the skill’s documentation to construct correct API calls for any WhatsApp Business Platform operation. The progressive disclosure means common tasks like sending a text message resolve instantly, while complex operations like setting up a template with variables trigger the deeper reference files automatically.

Quick Example

After installation, you can ask your agent to send a message like this:

“Send a WhatsApp message to +14155551234 with the text ‘Your verification code is 884291’”

The agent reads the messaging reference, constructs the correct POST to https://graph.facebook.com/v22.0/PHONE_NUMBER_ID/messages with the proper payload format, handles the auth header from your stored credentials, and returns the API response with the message ID.

Who It’s For

Get this skill if:

• You build WhatsApp chatbots or notification systems with AI coding assistants
• You need to send transactional messages (order confirmations, OTPs, shipping updates)
• You manage WhatsApp template approval workflows across multiple business accounts
• You integrate webhook-driven conversational flows where the AI agent handles incoming messages

Skip it if:

• You’re using a high-level WhatsApp SaaS platform that abstracts the API entirely
• You send fewer than 100 WhatsApp messages per month and can afford manual API lookups
• You don’t use AI coding assistants that support the Agent Skills specification

For a broader look at AI-powered integration skills, see our guide to building AI agent email automation workflows.

Bottom Line

The WhatsApp Cloud API skill turns eight hundred pages of Meta documentation into an on-demand reference your AI agent can actually use — without eating your context budget. Install it once, and your agent handles payload formats, error codes, and authentication patterns correctly every time.