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Run your WhatsApp inbox from inside ChatGPT

ChatGPT reads your WhatsApp inbox, drafts the replies and asks before it sends anything.

Support inbox

wassengerMCP
GPT-5.2
"Which WhatsApp chats from today are still unanswered?"
Used wassenger · list_chats4 results · 0.6s

 

NA
Nina Alvarez+1 555 0132
"My order #4821 was supposed to arrive Tuesday."
8:12 AM
MB
Marcus Bell+1 555 0177
"Do you ship to Canada, and how much is it?"
9:03 AM
PR
Priya Raman+1 555 0104
"The size 9 boots are still not back in stock?"
9:41 AM
TO
Tom Okafor+1 555 0159
"Can I swap the blue one for the black?"
10:26 AM
"Draft a reply for the delayed order."
Used wassenger · get_contact1 result · 0.3s
Used wassenger · get_order_status1 result · 0.4s

 

→ Nina Alvarez · +1 555 0132 · WhatsApp
Draft
Hi Nina — sorry about the wait! Order #4821 shipped this morning with UPS, tracking 1Z999AA10123456784, and it's due Thursday. I'll keep an eye on it and message you if anything changes.
Proof

5,000+ businesses already run WhatsApp on Wassenger.

The MCP connector is a new door into the same platform.

The shared inbox the connector reads and writes to.
SalesWhatsApp Business API
Authorized

Official Meta WhatsApp Business Partner

Verified · Certified API access.

Hosted in the EU

Revoke your key and the AI loses access at once. GDPR, on ISO/IEC 27001 data centres.

wa_sk_4f9e2c8a1b6d···Revoke

99.95% uptime SLA

status.wassenger.com
Connect your WhatsApp

5-minute setup · 7 days free · no credit card

How it works

ChatGPT talks to your inbox. In three steps.

Once you've added Wassenger as a custom MCP app in ChatGPT (Settings → Apps → Advanced settings, enable Developer mode, then Create app — five minutes), ChatGPT can read your WhatsApp inbox, find contacts, draft and send replies, and trigger your automations — all from a normal conversation. No code. You stay in control: ChatGPT asks before sending anything.

1

You connect ChatGPT once

Open ChatGPT → Settings → Apps → Advanced settings, enable Developer mode, then Create app. Paste your Wassenger MCP URL and API key, then connect. Five minutes, one time. Claude Desktop, Cursor and other AI assistants have similar flows (only the menu differs).

2

You ask ChatGPT in plain English

“Show me unread WhatsApp leads from this morning.” “Draft a reply for Alex.” “Summarise yesterday's support tickets.” Whatever you can describe, ChatGPT can do.

3

ChatGPT does the work, you approve

ChatGPT shows you what it's about to do — and waits for your OK. Nothing happens on your WhatsApp without your green light. Full transparency, zero surprises.

4 skills

What ChatGPT can do, once connected.

Four simple skills cover most day-to-day inbox work. You ask in plain English — ChatGPT picks the right one.

Read your unread chats

ChatGPT can list the latest unread conversations — who sent them, the last message and when — filtered by label, agent or channel.

Send a reply

ChatGPT drafts and sends messages — text, media, buttons or pre-approved templates. You can require a confirmation before anything goes out.

Find a contact

Look up anyone by name, phone, label or custom field. ChatGPT pulls the profile and recent chat history, perfect for "find the customer who…" questions.

Trigger an automation

Run a Flow you already built — welcome sequences, lead qualification, handoffs, reminders. ChatGPT can fire them on demand or on a schedule.

Setup

Live in 5 minutes.

Three clicks to read your first WhatsApp message from ChatGPT. No installs, no code, no technical setup.

01

Generate a Wassenger API key

Sign up (7 days free), connect your WhatsApp Business number, then grab your API key from the API settings page.

app.wassenger.com / settings / api
API key
wa_sk_4f9e2c8a1b6d···
Created 2 minutes ago · Active
02

Add Wassenger in ChatGPT

Open ChatGPT, go to Settings → Apps → Advanced settings, enable Developer mode, then under Apps click Create app. Paste your Wassenger MCP URL and API key — no code, no install required.

ChatGPT · Settings · Apps · Advanced
Custom apps
Wassenger
app.wassenger.com/mcp
Create app
Paste MCP URL + API key
03

Talk to your inbox

Once the custom MCP is connected, open any ChatGPT conversation and ask: "show my unread WhatsApp leads", "reply to Maria with the proposal" or "schedule a follow-up tomorrow." ChatGPT asks before sending anything.

ChatGPT · New conversation
Try asking
"Show me my unread WhatsApp leads from this morning"
Wassenger MCP connected

Using Claude, Cursor, Windsurf or a different AI tool? Same idea — only the menu changes. See guides for every AI assistant

Use cases

What teams do once ChatGPT has access to WhatsApp.

Four real prompts, four real ChatGPT replies — straight from your conversation.

Triage the morning inbox

Draft replies in your tone

Automate recurring flows

Hand-offs without copy-paste

Compatibility

Works with the AI assistants you already use.

ChatGPT

The flagship integration. In ChatGPT, go to Settings → Apps → Advanced settings, enable Developer mode, then Create app — paste your Wassenger MCP URL and API key.

Custom GPTs

Build a Custom GPT trained on your product docs that can read and reply to WhatsApp on demand.

Claude Desktop

Add Wassenger as a custom MCP from Customize → Connectors. Same workflow, different AI.

Cursor

For teams that live in their code editor — Wassenger shows up alongside your other tools.

Windsurf

Codeium's AI editor with native MCP support. Add Wassenger and ship without context switching.

Google Gemini

Same Wassenger account, same API key. Works out of the box with Gemini.

Give ChatGPT your WhatsApp inbox today.

7-day trial · No credit card · Cancel anytime

Nina Alvarez
+1 555 0132 · WhatsApp Business
Today

My order #4821 was supposed to arrive Tuesday.

8:12 AM

Hi Nina — sorry about the wait! Order #4821 shipped this morning with UPS, tracking 1Z999AA10123456784, and it's due Thursday. I'll keep an eye on it and message you if anything changes.

8:14 AM
wassengersend_messageApproved