Integration · Communication

Connect Claude & ChatGPT to SendZen

Ask your AI to send a WhatsApp message, add a contact to a group or set up a broadcast campaign in SendZen. It can look up your projects, WhatsApp Business Accounts and message templates, read inbox conversations and pull sent, delivered and read numbers for any period. Routine WhatsApp work gets done from a chat instead of the dashboard.

Connect SendZen free

Free plan, no credit card. Takes about a minute.

Try asking

“Send a WhatsApp message to +45 12 34 56 78 saying the order is ready for pickup.”
The AI sends a text message from your WhatsApp number to that phone number. It is a real message, so you can require approval first.
“Add Maria Jensen, +45 20 30 40 50, to the VIP group in our main project.”
It finds the project, creates the contact with name, country code and mobile number, and puts her in the VIP group.
“Set up a campaign for the VIP group using the spring_offer template.”
It looks up your WhatsApp Business Account and the template, then creates the campaign with the target group. Nothing is sent until you run send_campaign.

What your AI can do

WhatsApp messages

Send text, template, image or document messages to a phone number, optionally at a scheduled time, and read inbox conversations.

Contacts and groups

Search, create and delete contacts, create and rename groups, and add or remove contacts from a group.

Campaigns and stats

Create, update and send broadcast campaigns, see each campaign's messages with delivery status, and check message, failure and credit usage stats.

“How many messages were delivered and read last week?”
It pulls WhatsApp message statistics for that date range with sent, delivered and read counts.
“Why did messages fail yesterday?”
It gets failure statistics for the day with the reasons messages were not delivered.
“Which approved templates do we have?”
It lists the message templates on your WhatsApp Business Account, filtered by status.

25 tools for SendZen

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

add_contacts_to_groupChanges dataAdd existing contacts to a group: pass `project_id`, `group_id` and `contact_ids`.
create_campaignChanges dataCreate a broadcast campaign in a project with `campaign_name`, `waba_account_id`, `template_name`, `template_language`, `target_type` and target `group_ids`. Does not send until you call send_campaign.
create_contactChanges dataAdd a contact to a project (`project_id`) with first_name, last_name, `mobile_number`, `country_code`, email, address, `group_names` and custom_fields.
create_groupChanges dataCreate a contact group in a project with `project_id` and `group_name`.
delete_contactsMoves moneyPermanently delete contacts from a project: pass `project_id` and `contact_ids`. This cannot be undone.
get_accountGet the connected SendZen account's details (name, company, address, tax number).
get_campaignGet one campaign by `project_id` and `campaign_id`, with its template, target groups and status.
get_failure_statsGet statistics on failed WhatsApp messages and their reasons for a date range, optionally for one `project_id` or `waba_account_id`.
get_message_statsGet WhatsApp message statistics (sent, delivered, read) for a date range (`start_date_time`, `end_date_time`), optionally for one `project_id` or `waba_account_id`.
get_projectGet one project by `project_id`.
list_campaign_messagesList the messages sent by a campaign (`project_id`, `campaign_id`) with their delivery status; paginated with `next_page_token`.
list_campaignsList campaigns in a project (`project_id`), optionally filtered by `status`.
list_credit_usageList wallet credit usage transactions, filtered by `start_date`, `end_date`, `action_type` or `search`.
list_group_contactsList the contacts in a group (`project_id`, `group_id`), optionally filtered by `search_term` or `is_subscribed`.
list_inbox_chatsList inbox conversations, optionally for one `waba_account_id` or `user_phone_number`; paginated with `next_page_token`.
list_message_templatesList WhatsApp message templates for a `whatsapp_business_account_id`, optionally filtered by `name` or `status`.
list_projectsList your projects. Contacts, groups and campaigns all live inside a project, so get the project ID here first.
list_whatsapp_accountsList your connected WhatsApp Business Accounts (WABAs) and their IDs, needed for templates and campaigns.
remove_contacts_from_groupMoves moneyRemove contacts from a group (they stay in the project): pass `project_id`, `group_id` and `contact_ids`.
rename_groupChanges dataRename a contact group: pass `project_id`, `group_id` and the new `group_name`.
search_contactsSearch contacts in a project (`project_id`) by `search_term`, optionally within `group_id` or by `is_subscribed`; paginated.
search_groupsList contact groups in a project (`project_id`), optionally filtered by `search_term`.
send_campaignVisible to othersSend a campaign now to all its target contacts: pass `project_id` and `campaign_id`. Sends real WhatsApp messages and uses credits; cannot be undone.
send_whatsapp_messageChanges dataSend a WhatsApp message from your number `from` to `to` (phone number with country code). Set `type` (text, template, image, document, etc.) and the matching object, e.g. `text` or `template`; optional `schedule_time`. Sends a real message.
update_campaignChanges dataUpdate a campaign's name, template, language, target type or `group_ids`; pass `project_id`, `campaign_id`, `campaign_name`, `target_type` and `waba_account_id`.

Set up in three steps

1
Pick the app
Create a free PipMCP account and choose SendZen from the app list.
2
Paste your key
Paste your SendZen API key. Sign in to the SendZen dashboard (app.sendzen.io) and copy it from the API keys section.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
1. Click your name, then Settings › Connectors › Add custom connector.
2. Paste your link as the Remote MCP server URL.
3. Switch it on from the + menu in a chat.

Questions

What can the AI do in SendZen?

It can read your account, projects, WhatsApp Business Accounts, message templates, contacts, groups, campaigns, inbox chats, message and failure statistics and credit usage. It can send WhatsApp messages, create and update contacts, groups and campaigns, send a campaign, and remove or delete contacts if you switch those tools on.

Does the AI see my SendZen credentials?

No. Your SendZen API key is encrypted at rest and never shown to the AI. After you save it, it is not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start with lookups and stats only. Sending a message or a campaign reaches real people and uses credits, and deleting contacts is permanent, so these can require your approval before they run. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT go to Settings › Apps & Connectors › Advanced and turn on Developer mode, then add your PipMCP link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

PipMCP has a free plan with no credit card required. Paid plans bill per completed task. You also need your own SendZen account.

Where do I find project and WhatsApp account IDs?

You do not need to look them up yourself. Contacts, groups and campaigns live inside a SendZen project, and templates and campaigns belong to a WhatsApp Business Account. The AI lists your projects and WhatsApp accounts first and uses the right IDs.