For developers, integrators and agencies that build
Build on your client's WhatsApp number without taking it off their phone.
Cosend gives you Meta's Cloud API on a coexistence number, with the same paths and payloads, plus an n8n node and an MCP server. Your client keeps the app; you get the webhooks, the API and an inbox they can actually use.
Your week
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Monday.
A new client connects their number in Meta's setup screen. Nothing ported, nothing re-registered; your webhook starts receiving.
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Wednesday.
You wire an n8n workflow to the inbound trigger and reply through the node. The client's staff still answer from the phone, and your workflow sees those replies too.
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Friday.
Your AI agent reads the inbox through the MCP server, drafts replies, and hands anything unsure to a person. Every run is logged step by step, with a request ID you can quote to us.
Three things that change
One hostname, one token.
Point an existing Cloud API client at api.cosend.app and keep your version pin; the two documented differences are on the API page.
Webhooks you can route.
Every event, signed, to your own endpoint, with retries and a delivery log. Direct-delivery mode stores no message content on our side if the client wants it that way.
The client gets an inbox too.
So you're not building one, and their team doesn't need to learn yours.
The plan most integrators pick
Freewhile you build
5 numbers, the API and webhook routing, for one person.
Growth
$59.95 a month
per client workspace with a team in the inbox
Scale
$149.95 a month
for agencies running many numbers.
The questions everyone asks first.
Is my number safe?
Do I need a developer?
What happens to my chats?
Can I cancel?
Keep your phone. Add your team.
Free for 1 person, no card needed. Bring your team in from $14.95 a month.