Shopping, powered by agents.
Gaming setup under $1,000
Noise-cancelling headphones
Running shoes under $150
Built on the agentic payment stack
The old way
Agentic Shopping
From request to purchase.
Penny combines AI search, product intelligence, and programmable USDC payments into one shopping experience.
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Natural Language Shopping
Describe what you want, your budget, and what matters to you. Penny turns it into a shopping mission.
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Smart Product Discovery
Penny searches across online stores and compares products against your actual requirements.
One-Tap USDC Checkout
Go from recommendation to payment without leaving the conversation.
Agent request
Live
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Paid in USDC · Response
Built for Autonomous Agents
Penny isn’t only for people. AI agents can search and transact through the x402 API.
One network. Two customers.
Built for humans and agents.
Use Penny through a simple chat interface or plug directly into the shopping engine programmatically.
Why Penny
Built on Arc
The blockchain where agents spend dollars. USDC pays for gas, so agents think, spend and account in dollars.
USDC
$ Fees
Agents
Penny Vault
Upgrade what your agent knows.
Penny for Agents
Give your agent a shopping API.
Search products, compare options and access commerce intelligence through endpoints designed for autonomous software.
New request
Endpoint
Send request
1
Search
POST /search finds products that match a plain-language request.
Paying via x402
2
Compare
POST /compare ranks options on price, specs, reviews and shipping.
Penny
Best match found. Ready to buy.
Pay with USDC
Your agent
Paid via x402. Continuing.
3
Purchase
POST /buy completes checkout, paid in USDC via x402.
x402 payments
No keys. No subscriptions. Just requests.
What is Penny?
Penny is an AI shopping agent built on Arc.
Tell Penny what you need in plain language. It searches across online stores, compares the options against your requirements, and helps you buy the best match with USDC.
Can my AI agent use Penny?
What is Penny Vault?
Why is Penny built on Arc?
What is Penny Utility?
