# wasender.dev

> Connect a WhatsApp number you already own to any AI agent, automation tool or backend over a
> plain HTTP API. No Meta business verification, no message templates, no per-message fees.

## What it is

A WhatsApp API gateway. You link a normal WhatsApp number by scanning a QR code, the same way
WhatsApp Web links a device, and then send and receive messages with ordinary HTTP requests.
This is not Meta's Cloud API and needs no business verification or template approval.

## Pricing

The first connected number is free permanently, with unlimited messages and full API access.
Each additional number is a flat 4 US dollars per month. There is no per-message charge, no
message credit balance and no seat pricing.

## Common uses

Customer service automation, appointment scheduling and reminders, order and delivery updates,
lead follow-up, and connecting WhatsApp to an AI agent so it can read and answer messages.

## Integrations

Works with any AI agent or framework that can receive a webhook and make an HTTP request,
including a model call in your own code, LangChain, and custom orchestrators. Also works with
n8n via the Webhook and HTTP Request nodes, and with Zapier and Make via webhooks and HTTP
actions. There is no SDK to install.

## Quick example

    curl -X POST https://api.wasender.dev/messages/text \
      -H "Authorization: Bearer $WASENDER_TOKEN" \
      -H "Content-Type: application/json" \
      -d '{"to": "61371989950", "body": "Hello from wasender.dev"}'

Recipients are phone numbers in international format without a leading "+".

## Important caveats

- A 2xx response means WhatsApp accepted the message, not that it was delivered. Confirm real
  delivery through webhooks or GET /statuses/{MessageID}.
- This drives WhatsApp through an unofficial client, the same mechanism as WhatsApp Web. Meta
  does not sanction it. Use a dedicated number, and for regulated workloads use Meta's official
  Cloud API instead.

## More

- Full endpoint reference for models: https://docs.wasender.dev/llms.txt
- Expanded version with every description: https://docs.wasender.dev/llms-full.txt
- OpenAPI 3.1 specification: https://docs.wasender.dev/openapi.yaml
- Interactive API reference: https://docs.wasender.dev
- Dashboard and signup: https://app.wasender.dev
- Support: support@wasender.dev