Integration · Marketing

Connect Claude & ChatGPT to Handwrytten

Ask your AI to send a thank-you card to a new customer, and it can pick the card, write the message and choose a handwriting style in Handwrytten. It can read cards, categories, fonts, inserts, gift cards, your saved signatures and addresses, and your account credits. It can save recipient and sender addresses, add cards to your basket and send single cards or the whole basket, with your approval if you want it.

Connect Handwrytten free

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

Try asking

“Which thank-you cards can I choose from?”
The AI lists the card categories and the cards in Thank You, with names and prices.
“Send a thank-you card to Emma Clark, 12 Oak Street, Austin, TX 78701, in the Casual David style.”
It orders one card with your message, the handwriting style and both addresses. Your account is charged and a real card is posted.
“Save Pine & Co, 400 Main St, Denver, CO 80202, as a recipient.”
It saves the recipient address and returns its ID for later orders.

What your AI can do

Cards and styles

Browse card categories and cards with prices, handwriting fonts, inserts, gift cards, stamp options and your signatures.

Addresses

List, save and update recipient addresses, and save sender (return) addresses with a default.

Orders and basket

Send a single card, build a basket for several recipients, send or clear it, and check or cancel orders.

“Put birthday cards for my five top clients in the basket.”
It adds the card order for the saved recipients to your basket. Nothing is sent until you send the basket.
“How many credits do I have left?”
It reads your user account, including your credits.
“Cancel yesterday's order to Emma if it hasn't gone out yet.”
It checks the order's status and cancels it. This only works before the card has been written and mailed.

21 tools for Handwrytten

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

add_to_basketChanges dataAdd a card order to your basket for one or more saved recipients (`address_ids`) with `card_id`, `font`, message and `return_address_id`. Nothing is sent until the basket is sent.
cancel_orderDeletesCancel an order by `order_id` before it has been written and mailed.
clear_basketChanges dataRemove all items from your basket without sending them.
create_recipientChanges dataSave a new recipient address: first/last name or business, `address1`, `city`, `state`, `zip`, `country_id` and optional birthday.
create_sender_addressChanges dataSave a new sender (return) address with name, `address1`, `city`, `state`, `zip` and `country_id`; set `default` to make it the default.
get_basket_countGet how many items are in your basket.
get_cardGet one card's details and images by `card_id`.
get_current_userGet the Handwrytten user this connection acts as, including account credits.
get_orderGet one order's details and status by `id`.
list_card_categoriesList card categories (e.g. Thank You, Birthday). Use a category ID to filter cards.
list_cardsList available cards, optionally by `category_id`. Returns card IDs, names and prices.
list_fontsList the handwriting styles. Use the font's label (e.g. "Casual David") when ordering.
list_gift_cardsList gift cards that can be included with a card.
list_insertsList inserts (such as business cards) that can be added to an order.
list_recipientsList your saved recipient addresses with their IDs.
list_sender_addressesList your saved sender (return) addresses with their IDs.
list_signaturesList your saved handwritten signatures.
list_stamp_optionsList stamp options for US orders.
send_basketVisible to othersPlace and pay for everything in your basket. This charges your account and the cards are written and mailed.
send_cardChanges dataOrder and mail one handwritten card: `card_id`, `message`, `font_label`, plus sender and recipient address (`*_address1`, `*_city`, `*_zip`; state for US/Canada). Optional `wishes` closing, `insert_id`, gift card `denomination_id`, `date_send`. This charges your account and a real card is posted.
update_recipientVisible to othersUpdate a saved recipient address by `address_id`. Only the fields you pass change.

Set up in three steps

1
Pick the app
Create a free PipMCP account and choose Handwrytten from the app list.
2
Paste your key
Paste a Handwrytten API key. Log in to Handwrytten, open the Integrations page and create an API key. You can switch the account to test mode on the same page while you try things out.
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 Handwrytten?

It can read your account and credits, card categories, cards, fonts, inserts, gift cards, stamp options, signatures, recipient and sender addresses, your basket and orders. It can save and update addresses, send a card, add cards to the basket, send or clear the basket and cancel an order.

Does the AI see my Handwrytten credentials?

No. Your Handwrytten 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 read-only. Sending a card or the basket charges your account and mails real cards, 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 Handwrytten account, and cards are charged to it.

Can I test it without mailing real cards?

Yes. On the Integrations page in Handwrytten you can switch your account to test mode while you try things out. Cards in the basket are also not sent until the basket is sent.