Integration · Communication

Connect Claude & ChatGPT to WebSMS

Ask your AI to send a text, remind a client about an appointment or check whether this morning's messages were delivered. It works with your WebSMS account for New Zealand and Australia: it can send SMS and one-time codes, read incoming replies and opt-outs, validate NZ mobile numbers and report your credit balance and spend.

Connect WebSMS free

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

Try asking

“Text +64 21 555 0101: your order is ready for pickup.”
The AI sends the SMS as a transactional message. With sandbox on, it shows the price first without sending.
“Remind Sarah about her appointment on Friday at 10:00 and ask her to reply Y to confirm.”
It sends an appointment reminder with your company name, the date and time and a Reply Y prompt.
“Were the messages we sent this morning delivered?”
It checks delivery status for this month's messages in that time range.

What your AI can do

SMS, reminders and codes

Send SMS to one or more numbers, appointment reminders with a Reply Y prompt and one-time verification codes.

Delivery and replies

Check delivery status, read incoming replies and list numbers that have opted out.

Balance and spend

See your credit balance and SMS spend per month or date range, summarised or per transaction.

“Any replies since Monday?”
It lists incoming SMS replies received from Monday onwards, with the sender.
“How much credit is left, and what did we spend on SMS in August?”
It reads the account balance and the billing report for August, summarised per rate code.
“Is 021 555 0101 a valid mobile number?”
It checks the NZ number and tells you whether it is valid and which network it is on.

9 tools for WebSMS

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

get_account_balanceVisible to othersGet the WebSMS account's current credit balance.
get_billing_reportChanges dataGet SMS spend for a `month` (Y-m) or a `start_date`/`end_date` range, summarised per rate code, or set `detail` to 1 for individual transactions.
get_delivery_statusVisible to othersCheck delivery status of sent messages by `message_id` (comma-separated), or list this month's messages filtered by `to`, `status`, `start_date` and `end_date`.
list_incoming_repliesChanges dataList incoming SMS replies, filtered by sender `from`, shortcode `to`, and `start_date` / `end_date`.
list_unsubscribed_numbersChanges dataList numbers that have opted out of messages, optionally only changes after `since`.
send_appointment_reminderVisible to othersSend an appointment reminder SMS to `to` with `msg_company`, and optional `name`, `date`, `time`, `address` and a 'Reply Y to confirm' prompt (`reply_y`). Use `sandbox` to preview; otherwise sends a real, charged message.
send_otp_codeVisible to othersSend a one-time verification code by SMS to `to`, with `msg_company` as the name shown; a code is generated unless you pass `msg_code`. Sends a real, charged message.
send_smsVisible to othersSend an SMS to one or more numbers. Put recipients in `body_to` (list, international format), the text in both `body` and `body_body`, and `transactional` or `marketing` in both `message_class` and `body_message_class`; set `sandbox` true to preview price without sending. Sending is real and charged.
validate_phone_numberChanges dataCheck whether a NZ mobile `number` is valid and which network it is on.

Set up in three steps

1
Pick the app
Create a free PipMCP account and choose WebSMS from the app list.
2
Paste your key
Enter the Client ID (cid_...) and Client secret (csk_...) of a WebSMS API key. In your WebSMS dashboard, open API Keys and create a new key. The secret is shown only once, so copy it straight away.
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 WebSMS?

The AI can send SMS, appointment reminders and one-time codes, check delivery status, list incoming replies and opted-out numbers, validate NZ mobile numbers, and read your credit balance and billing report.

Does the AI see my WebSMS client secret?

No. Your WebSMS credentials are encrypted at rest and never shown to the AI. After you save them, they are 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 delivery status, replies and balance only. Sending SMS, reminders and codes reaches real people and is charged, and those tools 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 WebSMS account. Messages you send are charged to your WebSMS account.

Can I test before sending a real message?

Yes. Sending an SMS or an appointment reminder has a sandbox option that previews the message and price without sending it. Without sandbox, every message is real and charged to your WebSMS account.