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Send a WhatsApp message with curl, Node.js or Python

Updated

Short answer: To send a WhatsApp message over HTTP, POST JSON with "number" and "text" to /message/sendText/{instance} on your Weai subdomain, authenticating with your instance token in the apikey header.

curl

curl -X POST https://{name}.eai.menustudioai.com/message/sendText/{instance} \
  -H "apikey: YOUR_INSTANCE_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"number":"34600000000","text":"Hello!"}'

Node.js (fetch)

const res = await fetch('https://{name}.eai.menustudioai.com/message/sendText/{instance}', {
  method: 'POST',
  headers: { apikey: process.env.WEAI_TOKEN, 'Content-Type': 'application/json' },
  body: JSON.stringify({ number: '34600000000', text: 'Hello!' }),
});
console.log(await res.json());

Python (requests)

import os, requests

r = requests.post(
    "https://{name}.eai.menustudioai.com/message/sendText/{instance}",
    headers={"apikey": os.environ["WEAI_TOKEN"]},
    json={"number": "34600000000", "text": "Hello!"},
)
print(r.json())

Images, documents, audio and video

Use POST /message/sendMedia/{instance} with "mediatype" (image, document, audio or video), a public "media" URL and an optional "caption".

curl -X POST https://{name}.eai.menustudioai.com/message/sendMedia/{instance} \
  -H "apikey: YOUR_INSTANCE_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"number":"34600000000","mediatype":"image","media":"https://example.com/img.png","caption":"Look at this"}'
  • Keep the instance token on your server; never ship it in browser or mobile code.
  • Polls, interactive lists, locations and stickers follow the same pattern; see the API reference.

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