WhatsApp Business API · live on Free

The WhatsApp Business API, without the six-week onboarding.

Reach customers on the channel they actually use. The WhatsApp Business API is famously slow to set up; Senddio has done it once, properly, so you skip Meta's onboarding and template-approval queues. Send WhatsApp messages the same way you send email — just change one field to "whatsapp".

Start free See API reference

● Free forever · No card · All 6 channels · AI credits

POST /v1/send · channel: whatsapp

200 OK · 38ms

curl https://api.senddio.com/v1/send \
  -H "Authorization: Bearer sdo_live_…" \
  -H "Content-Type: application/json" \
  -d '{
    "channel":  "whatsapp",
    "to":       "+14155550123",
    "template": "order_shipped",
    "variables": {
      "name": "Ava",
      "eta":  "Tue 3pm",
      "tracking_url": "sndd.io/t/abc"
    }
  }'

# → template_status: approved, status: queued

Channel

Meta WhatsApp Business API

Free plan

10/mo

sampler limit

Same endpoint

/v1/send

POST · Bearer auth

Latency

<50ms

queue accept · p99

How it works

WhatsApp, without the labyrinth.

The Meta Business onboarding that takes other teams six weeks? We did it once, properly. You skip straight to sending.

Step 01

You hand us your business name.

We've been through Meta's onboarding for everyone. You don't do it. You don't even read about it.

Step 02

You write a template — or AI does.

Variables, media, languages. Meta approves it inside your dashboard in 24 hours. You watch live.

Step 03

You send.

To any WhatsApp number on the planet, in any language, with photos, video or documents if you need them.

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

Your competition is replying in six weeks. You'll reply in six minutes.

No more six-week Meta onboarding queues.
No more clicking through Meta Business Manager screens.
No more wondering why your template is still pending.
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 the address pinRestaurant 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 chatGroup broadcast to a 500-person communityFestival greeting in the right calendarNGO field-team daily check-inOrder updates where SMS isn't the channelDoctor confirmation with the address pinRestaurant 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 chatGroup broadcast to a 500-person communityFestival greeting in the right calendarNGO field-team daily check-in

Concierge picks up after 9pm, in 24h windowFitness coach “how was your run”Recipe of the day with the photoMicro-loan repayment confirmationSchool-class update for the parents’ groupHotel-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 of the day with the photoMicro-loan repayment confirmationSchool-class update for the parents’ groupHotel-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.

WhatsApp template upload + variable substitution
Media attachments (image, document, video, audio)
Threaded inbound conversations
Meta Business onboarding handled once, abstracted away
Per-region opt-in management
Conversation-based pricing exposed (not hidden)
24-hour customer-care window tracking

From teams who switched

You're in good company on WhatsApp.

Composite quotes from interviews with current Senddio customers shipping whatsapp in production.

We launched in São Paulo in nine days. Our nearest competitor has been waiting for Meta onboarding for two months. We are not the same company we were six months ago.

Camila S.

Operations lead · e-commerce

The AI template generator rewrote our shipping notification in four languages and Meta approved every one on the first try. I still find it slightly hard to believe.

Yusuf A.

Growth lead · direct-to-consumer apparel

Our Claude agent picks up after 9pm and replies within the 24-hour window every time. Our customers genuinely think we never sleep.

Hana O.

Founder · concierge service

Compared to your alternatives

Senddio WhatsApp vs. direct BSP

FeatureSenddioDoing it yourself

Meta Business onboarding— (we host it)2–6 weeks

Template approval flowIn-dashboardBSP UI

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.

Day 1

Bot live on a verified business phone number

Day 3

First template approved by Meta in-dashboard

Week 1

Two-way conversations threading into Logs

Day 30

WhatsApp eclipses email as your top-engaged channel

●Every milestone above ships on the Free plan. No card, no upgrade gate.

FAQ

WhatsApp — FAQ

Do I need my own Meta Business account to use Senddio WhatsApp?

No. Senddio is set up as a Business Solution Provider with Meta, which means Senddio handles the onboarding on your behalf. You upload templates and start sending. Enterprise customers can bring their own provider if they prefer.

How are WhatsApp templates managed in Senddio?

You upload templates from the dashboard with simple variable placeholders for things like names, dates and tracking links. Meta approves them in 24 to 48 hours, with live status shown in the app. Senddio's AI template generator can also draft a template for you, based on your recent outbound messages.

Can my Claude or ChatGPT agent reply to WhatsApp messages automatically?

Yes. Inbound WhatsApp messages arrive on a webhook, threaded under the original send. Hook up Claude or ChatGPT and your agent can reply within Meta's 24-hour customer-care window with free-form text. Outside the window, you re-engage with an approved template.

How is WhatsApp usage counted in Senddio's pricing?

The free plan includes 10 WhatsApp messages a month so you can try the channel. Starter and Pro plans include production volumes at a flat monthly price. WhatsApp's conversation-based metering is fully visible in the Logs and Billing pages, with no hidden fees.

Can I send images, video and documents over WhatsApp?

Yes. Senddio supports images, documents, video, audio and location attachments. You upload the file once through the media endpoint, then reference it by ID in your send call. Maximum size is 16 MB per attachment.

Other channels

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