Blackwalltier MCP Servers
2 servers published under blackwalltier. 1 answered our last handshake, 0 did not, and between them they expose 1 tools.
2 servers 1 answering 0 not responding 135 installs/wk
Blackwall X402 Guardrail
by blackwalltier
Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
Blackwall
by blackwalltier
API-key pre-action risk gate: any irreversible agent action (money, SQL, delete, email).