Send a physical postcard that will be printed and mailed to a real address. Price depends on volume tier based on lifetime top-up (from $0.72–$1.99 USA, $1.99–$2.99 international). Charged from the user's prepaid Postcard.bot balance. Use check_balance to see current pricing tier before sending. Requires an image URL (publicly accessible) and a message (max 350 characters).

Check account balance, lifetime top-up amount, and current volume pricing tier. Use this before sending to know your per-postcard cost and available funds.

Get postcard pricing tiers based on lifetime top-up amount. USA from $1.99 (<$50) down to $0.72 ($5000+), International from $2.99 down to $1.99.

Send the same postcard to multiple recipients at once. Same message, image, and return address for all cards — only the recipient addresses differ. Maximum 500 recipients per request. Total cost is deducted upfront from balance; failed cards are automatically refunded. Volume pricing applies based on your tier.

Check the delivery status of a previously sent postcard. Returns the current status, delivery tracking info, and expected delivery date.