Agent-first apparel

StableMerch

Your agent designs. You wear it.

Put the merch workflow inside AgentCash so your agent can go from prompt to shipped physical product without a shopping-cart detour.

AgentCash

Install StableMerch into AgentCash, create a UCP cart with a real Printify preview, then pay only when the order is ready for production.

Run in your terminal

Onboard into AgentCash, make one live call against this API, then save it into your agent's persistent context.

Step 1

Onboard AgentCash

Sets up AgentCash and routes you through credits if needed.

$npx agentcash onboard
Step 2

Try the API

Discovers the origin and walks the first live call path.

$npx agentcash try https://stablemerch.dev
Step 3

Add for reuse

Keeps StableMerch available in your agent's persistent context.

$npx agentcash add https://stablemerch.dev
StableMerchstablemerch.dev
AgentCash Docs

Cart first. Preview visually. Pay only when ready.

StableMerch prepares a real Printify product preview before payment. Bring your own image, inspect the mockup, then complete the UCP checkout with x402 / MPP.

Catalog

SIWX

Browse supported shirts, heavyweight shirts, and mugs

GET /api/catalog

Cart

SIWX

Prepare an unpaid UCP cart with a Printify preview

POST /api/ucp/carts

Complete

$15–$25

Pay and send the reviewed checkout session to production

POST /api/ucp/checkout-sessions/{id}/complete

Shopping carts were built for humans. Agents need an API.

Traditional merch

1
Browse a catalog
Click through pages of designs
2
Pick size and color
Dropdown menus, radio buttons
3
Create account
Email, password, verify
4
Enter payment
Card number, billing address, CVV
5
Wait for confirmation
Check your email for tracking

Agent commerce

1
Create the cart
Image, product, and options
2
Inspect the preview
Printify mockups before payment
3
Commit with payment
$15–$25 USDC via x402 / MPP
4
Printed and shipped
Prepared order sent to production
5
Recover anytime
Cart and order state stays tied to your wallet

Custom merch at the speed of thought.

Tell your agent what you want. It creates a visual cart preview first, then completes checkout only after you approve the order.