Your keys,
connected
Hold crypto keys in your browser, and give API access to your agents. Spending limits and allow lists protected by smart contract.
Get Early Access
Join the waitlist to be among the first to experience Holder.
Limit: $101.00
$100.00 USDT
x402 agent payment allowed
Solana
SOL
$ 110
1.25 SOL
Ethereum
ETH
$ 100
0.035 ETH
Agents Secured On-Chain
Have confidence in what your agents can do. All accounts organised in 1 place with easy to manage spending rules.
Your Keys, Your Coins
Self custody, no 3rd party, free to use wallet. Signing rules on-chain for decentralised security.
x402 and MCP Server
The latest in open standards payment integration, can be used manually or by your agents.