Head to head
X402 Payment Safety vs Blackwall X402 Guardrail
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
X402 Payment Safety
Aio.github.AgentTanuki/x402-payment-safetyNo reviews yet
Authorize x402 payments before signing with request-bound, signed safety decisions.
Full listingNo reviews yet
Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (88 and 87 out of 100).
| X402 Payment Safety | Blackwall X402 Guardrail | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A88/100 | A87/100 |
| Adoption | Growing | Growing |
| GitHub stars | 0 | 0 |
| Downloads / week | – | – |
| Runs where | Hosted (remote) | Hosted (remote) |
| Gateway-ready | Yes | Yes |
| Tools | 1 | 1 |
| Write actions | — | — |
| Price per call | Free | Free |
| Licence | Apache-2.0 | — |
| Last release | 2026-09-15 | 2026-08-25 |
| Category | Finance | Finance |