mcp.blackwalltier.com
LiveMCP Servercom.blackwalltier/blackwall-x402-guardrail: Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt. (text from the Official MCP Registry)
Servers On This Host
| Address | Name | Status | Recent Checks OK | Response Time | Tools | Last Checked |
|---|---|---|---|---|---|---|
| https://mcp.blackwalltier.com | com.blackwalltier/blackwall-x402-guardrail | Live | – | 150 ms | 1 | 16 min ago · receipt |
How we check: we connect without logging in and ask for the list of tools. We never send credentials and never pay. Tools that don't state a price are never called; for tools that do, we send at most 2 unpaid calls to read the payment request. We don't make test purchases from MCP servers yet. Signed records: raw data page · free quick check (JSON)
Paid Tools
| Tool | Stated Price | Payment Request Asks | Network | Pays To | Stated Vs Asked |
|---|---|---|---|---|---|
| forecast_payment | – | – | Not checked |
From our unpaid check: the tool list, plus at most 2 unpaid calls to tools that state a price, only to read the payment request. We never pay and never call tools that don't state a price. Stated prices are the server's own text or metadata. Full details: free quick check (JSON).