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api.x-402.online v1 guard
https://api.x-402.online/v1/guard
payable
Input firewall for AI agents. Scan any UNTRUSTED content or URL an agent is about to read/act on, BEFORE it does. Detects prompt-injection, data-exfiltration (incl. markdown-image beacons), phishing, scam/wallet-drainer intent, and hidden/steganographic unicode — via determini…
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0x2c871C2b8876dc35e9E19646FDa5ABF1cd27735F
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 132 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:14:13.665Z (1d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.x-402.online%2Fv1%2Fguard"