# Atom WhatsApp Templates API

**Canonical:** https://apis.io/apis/atom/templates/  
**Provider:** ATOM — https://apis.io/providers/atom/  
**Base URL:** https://us-central1-atomchat-io.cloudfunctions.net  
**Documentation:** https://soporte.atomchat.io/knowledge/como-enviar-templates-messages-utilizando-la-api-de-atomchat

Atom WhatsApp Templates API is one of 2 APIs that [ATOM](https://apis.io/providers/atom/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include WhatsApp, Messaging, Templates, and Notification. The published artifact set on APIs.io includes API documentation, authentication docs, and rate-limit docs.

REST service for sending pre-approved WhatsApp template messages from an account's official WhatsApp number. The documented send endpoint is POST /api/Template/SendMessage, taking templateId, phoneNumber, clientName, groupName, an assign flag and a params object of template variables; a /templates endpoint exposes the account's templates. Requests carry Content-type application/json and an Authorization Bearer token. When the number is already in an open conversation the message is delivered immediately, otherwise confirmation is awaited from the official WhatsApp provider. No OpenAPI is published for this API.

## Machine-readable artifacts (5)

- **Documentation** — https://soporte.atomchat.io/knowledge/como-enviar-templates-messages-utilizando-la-api-de-atomchat
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/atom/refs/heads/main/authentication/atom-authentication.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/atom/refs/heads/main/errors/atom-problem-types.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/atom/refs/heads/main/conventions/atom-conventions.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/atom/refs/heads/main/rate-limits/atom-rate-limits.yml

## Other ATOM APIs (1)

- [Atom Customers API](https://apis.io/apis/atom/customers/)

## Tags

WhatsApp, Messaging, Templates, Notification

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/atom/templates/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/atom/.