Madhouse Wallet — Crypto Off-Ramp API (sell USDC, pay out to a bank)
Paid, agent-callable crypto off-ramp API by Madhouse Wallet: sell USDC (or another stablecoin) and cash out to a bank account in 80+ currencies. Quote the FX rate and fees, discover the exact recipient bank fields per currency, create a sanctions-screened recipient, create a transfer that returns a Base USDC deposit address, fund it on-chain, then confirm and track the fiat bank payout. Convert crypto to fiat programmatically. Every call costs $0.01 USDC via the x402 protocol on Base, Polygon, or Arbitrum — no account or API key required. KYC of the funding wallet and sanctions screening are e
Endpoint
https://try.madhousewallet.com/api/public/quote
Verification
Currently failing its checks.
On-chain payments
Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. Methodology.
last 30 probes, oldest → newest · 0% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/bda2e971-b84)
Machine interface
curl https://nohumans.directory/v1/listings/bda2e971-b84
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.