{"name":"com.blackwalltier/blackwall-x402-guardrail","slug":"blackwalltier-blackwall-x402-guardrail","title":null,"description":"Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.","url":"https://mcp.market/server/blackwalltier-blackwall-x402-guardrail","rating":null,"grade":"A","score":87,"certified":false,"status":"active","category":"finance","tags":["finance"],"presence":{"score":23,"stars":0,"forks":0,"downloads_week":null,"last_push_at":"2026-08-25T04:41:18.000Z","license":null},"uptime":{"percent":100,"checks":9,"ok":9,"last_checked_at":"2026-09-21T13:21:11.265Z","last_ok_at":"2026-09-21T13:21:11.265Z","latency_ms":82},"claimed":false,"transport":"remote","callable_via_gateway":true,"default_price_micros":0,"repository":"https://github.com/bluetieroperations-create/blackwall-x402-mcp","website":"https://blackwalltier.com","version":"0.1.2","remotes":[{"type":"streamable-http","url":"https://mcp.blackwalltier.com"}],"packages":[],"tools":[{"name":"forecast_payment","description":"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.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"counterparty":{"type":"string","description":"recipient wallet from the 402"},"amount":{"type":"string","description":"amount as a decimal string, e.g. \"0.09\""},"asset":{"type":"string","description":"e.g. USDC"},"chain":{"type":"string","description":"e.g. base"},"payer":{"type":"string","description":"agent's EVM wallet (optional; binds settlement)"},"resource":{"type":"string","description":"what's being paid for"},"agent_id":{"type":"string","description":"caller DID/identity"},"context":{"type":"object","description":"{quoted_price_history, expected_recipient}"}},"required":["counterparty","amount","asset","chain"]}}],"scan":{"score":87,"grade":"A","scanned_at":"2026-09-21T13:03:13.133Z","report":{"scannerVersion":"0.1.9","scannedAt":"2026-09-21T13:03:13.129Z","components":{"code":{"score":-1,"max":25,"notes":["remote-only server, no package to scan"]},"reliability":{"score":20,"max":20,"notes":["remote reachable in 188ms"]},"poisoning":{"score":15,"max":15,"notes":["1 tool descriptions checked"]},"auth":{"score":10,"max":15,"notes":["open endpoint, read-only tools"]},"maintenance":{"score":15,"max":15,"notes":["last push 27 days ago"]},"identity":{"score":5,"max":10,"notes":["namespace and repository owner differ","website matches verified namespace"]}},"findings":[],"inputs":{"probes":[{"url":"https://mcp.blackwalltier.com","reachable":true,"authRequired":false,"latencyMs":188,"serverInfo":{"name":"blackwall-x402-mcp","version":"0.1.0"}}],"packages":[],"repo":{"found":true,"owner":"bluetieroperations-create","repo":"blackwall-x402-mcp","archived":false,"pushedAt":"2026-08-25T04:41:18Z","stars":0,"forks":0,"openIssues":2,"ownerType":"User","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/270213615?v=4","ownerCreatedAt":"2026-03-22T23:03:08Z"},"icon":{"url":"https://blackwalltier.com/favicon.ico","source":"site","width":256,"height":256},"presence":{"stars":0,"forks":0,"downloadsWeek":null,"license":null,"lastPushAt":"2026-08-25T04:41:18.000Z","score":23}}}},"grade_history":[],"reviews":[]}