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WhatsApp Business API · live on Free

The WhatsApp Business API, through one consistent API.

Connect a Meta Cloud API or 360dialog account, then send WhatsApp text messages through the same authenticated /v1/send endpoint as your other channels. Inbound replies are verified and threaded into Senddio.

Start free See API reference
● Free forever · No card · All 6 channels · AI credits
POST /v1/send · channel: whatsapp
202 Accepted
curl https://api.senddio.com/v1/send \
  -H "Authorization: Bearer sdo_live_…" \
  -H "Content-Type: application/json" \
  -d '{
    "channel": "whatsapp",
    "from":    "+14155552671",
    "to":      "+14155550123",
    "body":    "Hi Ava, your order arrives Tue 3pm. Track it at sndd.io/t/abc",
    "tag":     "shipping"
  }'

# → 202 Accepted · { "id": "sdo_msg_…", "status": "queued" }
Channel
WhatsApp
Meta WhatsApp Business API
Free plan
10/mo
sampler limit
Same endpoint
/v1/send
POST · Bearer auth
Acceptance
202
queued, not delivered
How it works

WhatsApp, without the labyrinth.

Connect your existing WhatsApp Business provider once, then use the same API, logs and webhook model as your other channels.

01
Step 01
You connect your provider.
Add your Meta Cloud API or 360dialog credentials and verify the sending number.
02
Step 02
You write the message.
Provide the sender, recipient and text body using the documented WhatsApp request shape.
03
Step 03
You send.
Send asynchronously and receive a queued message ID while the provider handles delivery.
04
Step 04
The conversation continues.
Inbound replies thread back under your message so your team — or your agent — can pick up the next reply.

One endpoint, one key, one bill. That is all.

The shift

Connect your provider. Keep conversations in one place.

  • Connect an existing Meta Cloud API or 360dialog account.
  • Keep provider onboarding and number verification up to date.
  • Send text replies within the provider-permitted conversation window.
  • No more leaving Latin America, South-East Asia and India out of your reach.

You meet your customers in the app they already use every day.

Beyond the obvious

Whatever your team can imagine, this endpoint will send.

Real teams ship whatsapp on Senddio for everything from order receipts to late-night customer apologies. Here are a few of the things they have built — and the kinds of things your team will dream up next month.

Order updates where SMS isn't the channelDoctor confirmation with an address linkRestaurant reservation with the table numberLanguage tutor reminder, in their languageReal-estate listing the moment it dropsSalon booking with the stylist's photoBanking statement at month-endKYC document collection over chatOpted-in customer reply in an allowed sessionFestival greeting in the right calendarNGO field-team daily check-inOrder updates where SMS isn't the channelDoctor confirmation with an address linkRestaurant reservation with the table numberLanguage tutor reminder, in their languageReal-estate listing the moment it dropsSalon booking with the stylist's photoBanking statement at month-endKYC document collection over chatOpted-in customer reply in an allowed sessionFestival greeting in the right calendarNGO field-team daily check-in
Concierge picks up after 9pm, in 24h windowFitness coach “how was your run”Recipe suggestion with a linkMicro-loan repayment confirmationSchool-class reply to an opted-in parentHotel-room ready, here is the key codeInsurance-claim status, in plain languageCustoms-clearance update mid-shipmentWedding-photo gallery delivered to the groomAI agent handles the second-language repliesAgent reschedules when the customer says “tomorrow”Concierge picks up after 9pm, in 24h windowFitness coach “how was your run”Recipe suggestion with a linkMicro-loan repayment confirmationSchool-class reply to an opted-in parentHotel-room ready, here is the key codeInsurance-claim status, in plain languageCustoms-clearance update mid-shipmentWedding-photo gallery delivered to the groomAI agent handles the second-language repliesAgent reschedules when the customer says “tomorrow”
The thing you'll build next month
If you can describe it in one sentence, you can ship it on /v1/send.
Read the docs
What you get

Production-ready whatsapp, on day one.

The boring infrastructure — signing, retries, suppressions, webhook verification, audit — is done. Your code is one POST.

  • Text messages through Meta Cloud API or 360dialog
  • E.164 sender and recipient validation
  • Threaded inbound conversations
  • Signed provider webhook verification
  • Retries for transient provider failures
  • Per-recipient suppression handling
  • Unified logs and message IDs
Compared to your alternatives

Senddio WhatsApp vs. direct BSP

FeatureSenddioDoing it yourself
Unified API and logsIncludedBuild it yourself
Provider connectionMeta or 360dialogDirect provider code
Pricing transparencyPer-message + planConversation-tier murky
Multi-channel fallbackSMS → email cascadeYou wire it
Agent toolsClaude MCP + OpenAIYou wire it
Your next 30 days

What changes once you ship WhatsApp on Senddio.

01
Day 1
Bot live on a verified business phone number
02
Test
First text reply within an allowed conversation window
03
Week 1
Two-way conversations threading into Logs
04
Maintain
Monitor provider failures and channel usage
RelatedBSP— Business Solution Provider — a WhatsApp ecosystem providerOTP— One-time passwords over WhatsApp
FAQ

WhatsApp — FAQ

The current sender supports Meta Cloud API and 360dialog. Add the provider credentials and phone-number ID in Channels before sending.

Send the channel, from and to numbers in E.164 format, a text body, and an optional tag. Template and media payloads are not part of the current public send contract.

Inbound WhatsApp messages are verified, stored and exposed as MESSAGE_RECEIVED events. Your application or agent can consume those events and send an allowed text reply through /v1/send.

Free includes 10 WhatsApp messages per month. Starter includes 100 and Pro includes 1,000. Eligible paid plans support metered overage; connected-provider charges and policies also apply.

Not through the current public /v1/send contract. The supported WhatsApp payload is text. Use your connected provider directly if you need media before Senddio exposes a documented media field.

Other channels
Email
Transactional and broadcast email API
SMS
Programmable SMS API
Push
Push notification API
Slack
Slack messaging API
Telegram
Telegram bot messaging

Ship whatsapp in 5 minutes.

Free forever — on the same plan as all 5 other channels, plus AI credits.

Start free See pricing
● 300 emails/day · All 6 channels · AI credits · No card