    servers/
        finance/
        blackwall-x402-guardrail
  

Blackwall X402 Guardrail

Unverified Claim & verify → Finance

Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.

Visit website ↗ View on GitHub ↗ Try Remote Server

Overview Installation

Overview

Blackwall X402 Guardrail is a Model Context Protocol (MCP) server: Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt. In practice that means any MCP-compatible AI assistant can call Blackwall X402 Guardrail's tools directly — the model decides when to use them in a conversation or agent run.

It's a hosted (remote) server — point your client at https://mcp.blackwalltier.com and you're connected, with nothing to install locally. The current release is v0.1.2, with source at bluetieroperations-create/blackwall-x402-mcp on GitHub.

Blackwall X402 Guardrail is listed under Finance on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Blackwall X402 Guardrail for blackwalltier.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

▸Hosted endpoint — Streamable HTTP · https://mcp.blackwalltier.com

Installation

Settings → Connectors → Add custom connector
Name: Blackwall X402 Guardrail
URL:  https://mcp.blackwalltier.com

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