Open source — coming soon →

One wallet. Every agent. You hold the keys.

The owner-controlled USDC wallet for AI agents. Runs on Base, built on Coinbase Smart Wallet and spend permissions. You pay your own network fee from your own Base wallet, shown before you sign. Kipurse never sponsors or fronts gas.

Get notified Star on GitHubsoon
  • USDC on Base
  • Sign once, fixed term
  • Exit without us
  • Paid exactly once
Why Kipurse

Built so you never have to trust us.

Three guarantees that come from how the wallet is built, not from promises.

01

One signature. A fixed term.

Authorize once for 30–365 days. Money you add later is covered by the same authorization, the clock is never reset, it stops automatically at expiry and it never silently renews. Renewing always takes your new signature.

You signAuto-stop
+USDC
+USDC
+USDC
■
✓Deposits covered ✓Clock never resets ✕No silent renewal
02

Exit without us.

Even if Kipurse disappears tomorrow, you can revoke every permission and withdraw everything with just your own wallet and a public Base node. A single-file exit kit and a step-by-step Basescan guide come with it.

exit-kit.html
kipurse serversOFFLINE
rpcpublic Base node
signeryour wallet
› revoke spend permission✓
› withdraw all USDC✓
funds back in your wallet
Full-outage exit drill verified
03

Many agents. One wallet. Paid exactly once.

Every agent, on any framework, shares one wallet and one ledger. When several agents reach for the same purchase, it is paid once, and that is enforced on-chain, not by our servers.

Same orderorder · 0x9f…c2
agent-01paid ✓
agent-02rejected
agent-03rejected
agent-04rejected
agent-05rejected
Test run: 5 agents raced for the same order → 1 payment on-chain.
Pays any USDC merchant

Hand it a link. It knows how to pay.

Kipurse detects how the merchant gets paid (x402, MPP, EIP-681 payment links or a plain address) and pays in USDC within the limits you set.

  • ⌁
    Per-payment capNo single payment above your limit.
  • ◷
    Daily capA ceiling on what agents can spend each day.
  • ✓
    AllowlistsApproved merchants get their own limits.
  • ?
    Lower caps for strangersUnknown addresses get a much smaller limit.
How it works

Three steps. Then hands off.

  1. 1

    Sign once

    Pick a term (30–365 days) and your limits. One signature from your Coinbase Smart Wallet sets the rules.

  2. 2

    Fund with USDC

    Top up with USDC on Base whenever you like. Later deposits are covered by the same authorization.

  3. 3

    Agents pay. You watch.

    Agents pay within your limits from one shared ledger. Watch every payment, and stop everything at any time. Delete my data erases your records from our server.

Open source — coming soon

Don’t trust us. Read the code.

A wallet that holds your money should be inspectable by anyone. We’re preparing Kipurse for a public release, so anyone can read it, check it, and run the exit without us.

Notify me at launch GitHub reposoon
kipursePublic · soon
★ Star Unlocking soon
Status, stated honestly

Where we are today.

Live on Base mainnet

Base mainnet only. Running as a small-cap pilot with strict spending limits. Kipurse keeps no reserve: we never hold your funds and never pay your gas.

Not yet externally audited

The contracts have not had a third-party audit yet. Only use amounts you’re comfortable with.

Open source — coming soon

The public repository isn’t live yet. Join the list to hear when it is.

Be first when the code goes public.

Email us and we’ll write once when Kipurse is open-sourced and opens to more owners. No spam.