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1

Add Sendpaper to your agent

This gives your agent six tools: check prices, create a postcard, create a letter, pay, check status and cancel. There’s no sign-up or API key. Other clients: Connect your agent.
2

Ask for mail in plain words

Send a 4×6 postcard to my mom, Dana Kim, 12 Oak St, Austin TX 78701. Big text on the front: “Happy birthday, Mom!”. On the back say I’ll call on Sunday. My return address is 88 Pine Ave, Denver CO 80202.
Your agent reads the addresses and wording back to you before it creates anything.
3

Approve and pay

Your agent shows you the preview, exactly what will print. Then either:
  • it pays for you with a one-time Stripe token you approve, if it can use Stripe Link (how agent payments work), or
  • you pay the checkout link it gives you.
Nothing is printed until the order is paid.
4

We mail it

A person reviews it, prints it and hands it to USPS, usually within one business day. Ask “what’s the status of my postcard?” and your agent calls get_order.
No agent? Send from the web at sendmypaper.com/send. Building an app? See the API introduction.