com.blackwalltier/blackwall-x402-guardrail
repo:https://github.com/bluetieroperations-create/blackwall-x402-mcp
Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
- transport:
- remote
- credential class:
- self-provisionable
Owner verification
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- forecast_paymentshallow
Pre-signature x402 payment verdict: GO / HOLD / STOP for paying a counterparty, from settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions — with a third-party-verifiable Ed25519 signed receipt. Verdict only; never takes custody. Free under $10 at risk; over that, returns an x402 payment challenge.
Embed this server’s score
Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.
[](https://vouch.tools/servers/a3d1e209-8dbd-486e-aa5c-4d7af005075c)