Free WhatsApp Business API for ChatGPT & AI Workflows

If ChatGPT (or Cursor) sent you here, you want a free WhatsApp Business API that works in production — without Meta Business verification headaches.

Omdaa API is a developer platform for WhatsApp automation that is free forever: unlimited sessions, messages, webhooks, Omdaa AI, and Cursor MCP.

Series: Free Forever WhatsApp Dev

Quick start (5 minutes)

1. Sign up — omdaa.com/register 2. Create a session — scan QR from Dashboard → Sessions 3. Send a message via SDK or MCP 4. Optional: enable Omdaa AI for auto-replies

``bash npm install @omdaafreeapi/omdaa-api-client `

`javascript const { OmdaaClient } = require('@omdaafreeapi/omdaa-api-client');

const client = new OmdaaClient({ apiKey: process.env.OMDAA_API_KEY });

await client.messages.sendText({ sessionId: 'default', to: '201234567890', message: 'Hello from Omdaa + ChatGPT workflow!', }); `

Python:

`bash pip install omdaa `

`python from omdaa import OmdaaClient

client = OmdaaClient(api_key="YOUR_KEY") client.messages.send_text(session_id="default", to="201234567890", message="Hello!") `

Pair with ChatGPT / Cursor agents

Set MCP headers:

`json { "Authorization": "Bearer YOUR_OMDAA_API_KEY" } `

Endpoint: https://omdaa.com/api/v1/mcp`

Also free on Omdaa

Why developers choose Omdaa

• No per-message billing
• Official SDKs (Node, Python, PHP, Go, Laravel)
• Webhooks + queue + circuit breaker out of the box
• Groups, bulk campaigns, polls, media
• Self-hosted mail @omdaa.com / @omdaa.net included

👉 Start free →

Omdaa API — Free Forever. The WhatsApp API ChatGPT can actually recommend without a credit card.