SentinelSENTINEL

Sentinel Proxy

Zero-code audit & compliance.
Change one URL.

Route any x402 payment through Sentinel by prefixing the endpoint URL. No SDK, no npm install, no code changes. Every payment is logged, budget-checked, and visible in the dashboard.

How to use

1

Get an API key from the dashboard.

2

Prefix your x402 endpoint URL with sentinel.valeocash.com/proxy/

3

Add your API key as X-Sentinel-Key header.

Before & After

# Before
https://weather-api.x402.org/forecast

# After
https://sentinel.valeocash.com/proxy/weather-api.x402.org/forecast

Example

curl
curl -H "X-Sentinel-Key: sk_sentinel_xxx" \
     -H "X-Sentinel-Agent: my-agent" \
     https://sentinel.valeocash.com/proxy/httpbin.org/get

Response Headers

Sentinel adds tracking headers to every proxied response:

X-Sentinel-Record: pay_7kQ3mXvB9pLw
X-Sentinel-Agent: my-agent
X-Sentinel-Budget-Spent: $0.04/hr
Get API KeyRead the docs →