WhatsApp API infrastructure built to scale without losing control
D-API is a B2B WhatsApp API built in Brazil for companies, SaaS products and automation teams that need stability, isolation and predictability, not another fragile connection that drops at the first traffic spike.
What we built
We started from a concrete problem: unofficial WhatsApp solutions tend to share infrastructure, charge per message and break in production without warning. You can’t build a serious product on top of that.
That’s why D-API delivers a dedicated proxy per connection, per-instance isolation and continuous self-healing, with reliable webhooks, an official SDK and interactive Swagger documentation. All with billing per active instance: no per-message fees.
Our engineering principles
Dedicated proxy per connection
Every connection gets its own dedicated IP, reducing blocks and keeping the number’s reputation under your control.
Per-instance isolation
One instance per number, with no shared neighbors. What happens on one connection never affects the others.
24/7 self-healing
The infrastructure recovers on its own from drops and reconnections, targeting 99.9% uptime with no manual work.
Webhooks you can rely on
Retries with exponential backoff, so you don’t lose events when your endpoint has a hiccup.
Official SDK and integrations
Official Node.js SDK, n8n community node, Datacrazy CRM, Amazon S3/MinIO and event streaming via RabbitMQ.
Billing per active instance
You pay per active connection, not per message volume. Predictable for teams that really scale.
Who we are
D-API is operated in Brazil under CNPJ 40.925.787/0001-17. We serve SaaS, automation and marketing companies that embed WhatsApp into their own product or operation. Support is available in English: reach our team on WhatsApp or by email at [email protected].
What the D-API WhatsApp API is
D-API is a WhatsApp API built for teams that need real stability in production. Instead of spinning up an unofficial instance on a VPS and hoping the number stays connected, you connect your numbers through our managed infrastructure and integrate through a REST API documented in Swagger, with an official Node.js SDK, webhooks with retries and exponential backoff, and a dedicated proxy with a unique IP per connection.
Every number runs on an isolated instance: a problem on one connection never takes down the others. On top of that you get 24/7 self-healing, 20+ servers across 3 datacenters and 99.9% uptime, the foundation a serious WhatsApp operation needs to scale from the first number to the thousandth.
Official or unofficial WhatsApp API?
The official WhatsApp API (Meta Cloud API) charges per conversation and requires template approval, customer service windows and messaging limits. The D-API WhatsApp API is an unofficial alternative based on the direct WhatsApp connection: you talk to customers without templates, without a 24-hour window and with no per-message fees, paying only for active instances. It is the choice for teams that want predictable costs and the freedom to automate.
Who D-API is for
- SaaS and products: embed WhatsApp as a multi-tenant feature, with one isolated instance per customer and predictable billing.
- Automation agencies: n8n, Make and Zapier flows that run 24/7 without stalling halfway, with an official n8n community node.
- Marketing and sales: multiple isolated numbers, response-rate reports and native CTAs (buttons, lists, carousels and payment links).
Want to see how the D-API WhatsApp API fits your use case? Start with the pages below or talk to our team.
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