PipRail
open · self-custodial · no middleman

Agents don’t need permission.

They pay any x402 URL themselves — settled wallet-to-wallet against your own RPC. No network, no partners, no operator in the middle. The agent economy, open by default.
Self-custodial — your keys, your RPC. No one holds your funds.
Any chain, any time — no sign-up, no approval, no fee.
x402 · 29 chains · MIT & openpiprail.com