Official WhatsApp for your business

Key features

WhatsApp

TECHNICAL DETAILS — NEED AN API?

Send a message with a single call

One POST to /api/v1/messages/send/text. No complex SDKs.

With Sendio you can send WhatsApp messages via API using WhatsApp Cloud API through Meta's official Embedded Signup. One POST to /api/v1/messages/send/text with your connected channel's channelId, API key auth, native idempotency, and signed webhooks. Free plan with 500 messages/month.

curl -X POST https://api.sendio.dev/api/v1/messages/send/text \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "channelId": "8f14e45f-ceea-4f3a-9b5d-2c1e7a4d4173",
    "to": "+5491155551234",
    "payload": {
      "type": "text",
      "text": "Hello from Sendio!"
    }
  }'

View docs →

Available on these plans

Other available channels

Compare Sendio