# Blackwalltier Blackwall X402 Guardrail MCP server

Source: https://glimind.com/server/mcp-registry%2Fcom.blackwalltier%2Fblackwall-x402-guardrail
Registry id: `mcp-registry/com.blackwalltier/blackwall-x402-guardrail`
Status: live (checked 2026-10-27T07:19:23.036Z)

## Measurements (30 days)

- Uptime: 100%
- Checks: 5036
- Outages (90 days): 0

## Install

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

Claude Code:

```sh
claude mcp add --transport http blackwalltier-blackwall-x402-guardrail-m https://mcp.blackwalltier.com
```

## Tools (1)

- `forecast_payment`: Pre-signature x402 payment verdict: GO / HOLD / STOP for paying a counterparty, from settlement reputation, price-anomaly (quoted vs the payee's own median), an

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.