Overview

USDC off-ramp infrastructure for wallet providers, exchanges, and fintechs

Madhouse Wallet is a stablecoin off-ramp API built for B2B partners. Integrate once and give your users the ability to send USDC and receive local fiat in 85 currencies across Africa, Asia, Europe, Latin America, the Middle East, and Oceania.

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How It Works

Your user sends USDC to a deposit address
            ↓
   Madhouse detects the deposit,
   converts at mid-market FX rate,
   and routes to recipient's bank
            ↓
 Recipient receives local fiat
 (bank account, M-PESA, UPI, SEPA, etc.)

1. Create a recipient — dynamic field validation per currency

2. Get a quote — mid-market FX, locked 5 minutes

3. Submit a transfer — receive a unique USDC deposit address

4. Send USDC — from any supported chain

5. We do the rest — conversion, routing, settlement

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Key Numbers

Fiat currencies	85
Supported chains	Arbitrum, Base, Ethereum, Optimism, Polygon, Solana
Off-ramp success rate	98%
FX quote validity	5 minutes
Settlement	Instant (most rails) · ACH 1–2 days · SWIFT 5–7 days
Max transaction	$1,000,000 (enterprise)

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Navigate the Docs

• Quickstart — make your first API call

• API Reference — all endpoints documented

• Transfer Flow — end-to-end walkthrough

• Dashboard — recipients, keys, history

• Supported Currencies — 85 currencies and rails

• Security — encryption, key management, compliance

• Fees — transparent pricing

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API Docs: developer.madhousewallet.com

Changelog: business.madhousewallet.com/developers/changelog

Contact: [e-mail]