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com.blackwalltier/blackwall-x402-guardrail

السجل الرسمي المالية والمدفوعات

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

الشيفرة المصدرية الموقع التوثيق

التثبيت

أضف هذا إلى إعدادات MCP في عميلك (Claude Desktop: claude_desktop_config.json، وCursor: ‏.cursor/mcp.json، ويستخدم VS Code وغيره الصيغة نفسها «mcpServers»).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http blackwall-x402-guardrail 'https://mcp.blackwalltier.com'
إعداد JSON (Claude Desktop وCursor وVS Code) 
{
    "mcpServers": {
        "blackwall-x402-guardrail": {
            "type": "http",
            "url": "https://mcp.blackwalltier.com"
        }
    }
}

التوثيق

مأخوذ من ملف README للمشروع على GitHub ويُحدَّث أسبوعيًا. تفتح الروابط على GitHub.

المحتويات
  1. Black_Wall remote MCP
  2. Add it
  3. The tool: forecast_payment
  4. How it works
  5. Registry
  6. Develop

Black_Wall remote MCP

A hosted remote MCP (Model Context Protocol over HTTP) that gives any MCP-capable agent a pre-signature payment-risk verdict — with no install and no signup. Add one URL and your agent can ask, before it signs an x402 payment, "should I pay this?" and get GO / HOLD / STOP — from counterparty settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions — plus a third-party-verifiable Ed25519 signed receipt.

Add it

Point your MCP client at:

https://mcp.blackwalltier.com

Transport: Streamable HTTP. No API key. Verdicts for amounts under $10 at risk are free; at or above that, the tool returns an x402 payment challenge your agent settles from its own wallet (pass the settled payment back as an X-PAYMENT header, then retry).

The tool: forecast_payment

field
counterpartystring, requiredrecipient wallet from the 402
amountstring, requireddecimal string, e.g. "0.09"
assetstring, requirede.g. USDC
chainstring, requirede.g. base
payer / resource / agent_id / contextoptionalbinds settlement / context

Returns a verdict (GO/HOLD/STOP) + reasons + signals, and a signed_receipt anyone can verify against the published key at https://agent-egress-proxy.onrender.com/.well-known/blackwall-receipt-key.json (any RFC 8032 Ed25519 library) — Black_Wall never has to be in the loop.

How it works

This Worker is a thin transport + proxy: it speaks minimal MCP JSON-RPC (initialize / tools/list / tools/call / ping) and forwards forecast_payment calls to the Black_Wall x402 oracle. All decision logic and the receipt come from the oracle unchanged.

Fail-closed by design: if the oracle errors, is unreachable, or returns a non-verdict, the tool returns an error — never a phantom GO. A payment guardrail that can't reach its backend must not imply "safe to pay."

Registry

Published to the official MCP Registry as com.blackwalltier/blackwall-x402-guardrail.

Develop

node test.mjs        # unit tests (mocked oracle)
npx wrangler dev     # run locally
npx wrangler deploy  # deploy (Cloudflare Workers)

By BlueTier. Verdict only — never takes custody, never in the settlement path. No evidence is not trust.

الأسئلة الشائعة

ما هو com.blackwalltier/blackwall-x402-guardrail؟

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

كيف أثبّت com.blackwalltier/blackwall-x402-guardrail؟

يعمل كخادم بعيد. في Claude Code: claude mcp add --transport http blackwall-x402-guardrail 'https://mcp.blackwalltier.com'. وفي العملاء الآخرين، الصق إعداد JSON من هذه الصفحة في إعدادات MCP الخاصة بهم.

هل يحتاج com.blackwalltier/blackwall-x402-guardrail إلى مفتاح API؟

لا يذكر إدراجه في السجل أي مفتاح أو سر إلزامي. قد تتطلب بعض الميزات حسابًا لدى الخدمة التي يتصل بها.

هل com.blackwalltier/blackwall-x402-guardrail مفتوح المصدر؟

شيفرته علنية على GitHub، لكن المستودع لا يعلن ترخيصًا قياسيًا.

من يصون com.blackwalltier/blackwall-x402-guardrail؟

ينشره bluetieroperations-create. يدرجه AI.tn لكنه لا يصونه ولا يوصي به.

من سجل MCP الرسمي. الإدراج ليس توصية: راجع شيفرة الخادم وصلاحياته قبل منحه الوصول إلى بياناتك.