Eccos
An open-source WhatsApp gateway built on the official WhatsApp Cloud API. Run it yourself, or let us run it for you. Either way you keep your own WhatsApp Business Account and pay Meta directly for conversations, with no platform metering your messages.
What it does
A business connects its own WhatsApp Business Account through Embedded Signup. From that moment Eccos does two things on that business’s behalf:
- It receives the events Meta sends about that account — incoming messages, delivery and read receipts — and forwards them to an endpoint the business chooses.
- It sends the messages the business asks it to send, including templates and media.
Businesses use it to run WhatsApp support and notifications from their own systems, without a third-party platform sitting between them and Meta.
Two ways to run it
Self-hosted
Available nowThe full gateway is open source under the MIT licence. Deploy it as a single Bun binary or entirely on Cloudflare Workers and Durable Objects, on infrastructure you control. Nothing is sent to us: your deployment talks to Meta directly.
Source and deployment guide on GitHub →Eccos Cloud
Early accessA hosted version for businesses that would rather not run infrastructure. We operate the gateway for you on our own infrastructure and you connect your WhatsApp Business Account the same way. This version is being onboarded case by case while we open it up, and is not yet generally available.
Ask for early access →How your data is handled
In the hosted version, data obtained from the WhatsApp Cloud API — message events, delivery statuses, phone number and account identifiers — is processed for one purpose only: delivering each business its own messages and events.
- It is never combined or cross-referenced across businesses.
- It is never sold, rented, or shared with data brokers.
- It is never used for advertising or to train models.
- Each business’s data is isolated, and is deleted on request.
Self-hosted deployments send us nothing at all: the data never leaves the infrastructure the business itself operates.
Who provides this service
Eccos is built and operated by a sole trader (empresario individual) registered in Spain. Because the provider is a natural person, there is no Companies House entry; the corresponding registration is with the Spanish Tax Agency’s business census.
- Provider
- Santiago García Monsalve
- Tax ID (NIF)
- 21105416H
- Registered address
- Passeig del Riu, 54, planta 1º, puerta 2ª — 08241 Manresa (Barcelona), Spain
- Phone
- +34 697 98 18 79
- hello@imsanti.dev
Full legal notice at /aviso-legal.
Last updated: August 2026