Blackwall X402 Guardrail

com.blackwalltierv0.1.2Updated Sep 24, 2026

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

VerifiedStreamable HTTPWeb executableBusiness & Commerce

Installation

In SourceWeft

  1. Open Blackwall X402 Guardrail in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "blackwall-x402-guardrail": {
      "type": "http",
      "url": "https://mcp.blackwalltier.com"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v0.1.2LatestSep 16, 2026