blackwall-x402-guardrail
com.blackwalltier/blackwall-x402-guardrail
Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
Description as published in the official MCP registry.
Answers the MCP handshake and lists its tools. Checked 2026-10-05.
What we measured
| Endpoint | https://mcp.blackwalltier.com | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (217 ms) | our check, 2026-10-05 |
| Protocol version | 2025-11-25 | our check, 2026-10-05 |
| Tools (1) | forecast_payment | tools/list, 2026-10-05 |
| GitHub stars | 0 | github.com/bluetieroperations-create/blackwall-x402-mcp |
| Last push | 2026-08-25 | GitHub API |
| Registry version | 0.1.2 · active · updated 2026-08-25 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows a real call went through, not just an opinion. How to file one.
Connect
claude mcp add --transport http blackwall-x402-guardrail https://mcp.blackwalltier.comCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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Badge for your README
Shows the result of our latest check and links back to this page.
[](https://openforallofus.com/tools/com.blackwalltier/blackwall-x402-guardrail)Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name com.blackwalltier/blackwall-x402-guardrail.