Testnet preview / Practice with test tokens. No real funds.
ContractOS
PROGRAMMABLE AGREEMENTS, SIMPLIFIED

Good agreements.
Clear outcomes.

Set the terms. See what happens. Put your payment in motion—with no code and no middleman holding your funds.

Your wallet, your funds No code needed Free to explore
AGREEMENT PREVIEWIllustration
Website redesign
2,500 cUSD-TEST

Held until the work gets the green light.

2 of 3 approvalsRequired before the deadline
ALJMSKTwo people approve the work
Ready for the recipient to claimA separate wallet transaction releases payment.
Mock token · No monetary value Base Sepolia
Built around clear rules
Noncustodial by design
Fixed contract templates
Understand every outcome
START WITH THE AGREEMENT

Two simple ways to pay.

Choose the condition that fits your arrangement. We’ll guide you through the rest.

FROM TERMS TO TRANSACTION

Clarity at every step.

01

Set your terms

Choose who gets paid, how much, and what needs to happen first.

02

Explore the outcomes

Review permissions and scenarios before authorizing anything.

03

Make it executable

Connect your wallet, deploy, and fund. Follow every step from your dashboard.

SMALL START. REAL POSSIBILITIES.

Your first agreement
starts with a clear condition.

Explore on Base Sepolia with tokens that have no real value.

Create an agreement