# Madhouse Wallet KYC Start

> Madhouse Wallet KYC Start is a paid API for AI agents from kyc.madhousewallet.com, paid per call via x402, $0.05/call, status down (last checked 2026-09-16).

Initiates identity verification for a wallet address and returns a hosted KYC verification URL to complete the process.

## Facts

- Endpoint: POST https://kyc.madhousewallet.com/api/public/kyc/start
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kyc-madhousewallet-com-7f061631
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9MsKgDLoiLURPYgVa8srk

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kyc-madhousewallet-com-7f061631 -d '<json body>'
```

Example prompt: Start KYC identity verification for my wallet 0xAbC123...def and give me the verification URL I need to open in my browser.

## When to prefer this

Use this endpoint when you need to initiate a fresh KYC identity verification flow for a wallet address that has not yet been verified, or when a prior verification has expired. This is the entry point before checking status; prefer it over the /status endpoint when the wallet is unverified and you need to get a verification link for the user to complete.

## Known failure modes

- Insufficient USDC balance to cover $0.05 fee — payment rejected
- Invalid or malformed wallet address — 400 bad request
- KYC session already in progress for wallet — duplicate initiation error
- Payment protocol (x402) misconfiguration — authentication failure
- Service unavailable or timeout — 503 error

## How this service works

KYC identity for AI agents. Pay once with USDC on 6 networks, verify your wallet, and get a permanent on-chain attestation every x402 API can read. No accounts, no repeated sign-ups.

## Output

Returns a hosted KYC verification URL (kycUrl) that the user must open in a browser to complete identity verification, along with the bound wallet address. After completion, the wallet's verified status can be checked via the /status endpoint.

## Example request

```json
{}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "kycUrl": "https://kyc.madhousewallet.com/verify/vs_1TajwgBbHYAruVQWKekyDXiN",
  "walletAddress": "0xef616c29859b101167f3ea6bb69faee733d573f7"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kyc-madhousewallet-com-7f061631/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kyc.madhousewallet.com](https://www.zero.xyz/host/kyc.madhousewallet.com/llms.txt)