GateCheck by LarryBuildsAI

io.github.LarryLemonBotv0.1.3更新於 Oct 10, 2026

One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs.

已驗證Streamable HTTP可網頁執行Developer ToolsBusiness & CommerceSecurity & Monitoring

概覽

AI 產生的概覽

GateCheck 是一個託管的遠端 MCP 伺服器，用來在發布前檢查付費 x402 或 MCP 代理工具是否可被發現、可被檢視，且聲明邊界清楚。

功能
GateCheck 提供六個工具：boundary_guard_check、scan_x402_resource、probe_x402_paid_path、check_agent_tool_readiness、generate_x402_launch_pack 與 generate_trust_receipt。它會檢查產品範圍內的探索入口，例如首頁、llms.txt、agents.txt、產品卡、技能卡、網站地圖與 MCP 伺服器卡，並執行公開的 MCP initialize 與工具清單內省。它也會讀取未付費的 402 挑戰中介資料，但不提交付款簽章、不移動資金，並產生上架就緒報告與發布包產物。
適用情境
適合在公開提交、推廣或付費代理路由之前使用，用來驗證付費 x402 或 MCP 工具是否可被發現、可被檢視，且聲明邊界清楚。主要面向準備市場上架資料的付費代理工具賣家。
執行需求
需要一個遠端 streamable-http 端點；不需要本機套件或執行環境。公開的 initialize 與 tools/list 不需憑證即可使用。受保護的工具直接執行可能需要 Authorization bearer 權杖。部分固定價格報價透過 PayanAgent 以 USDC 結算。
安裝前請注意
受保護的工具執行可能需要 Authorization bearer 權杖，請勿將其放入公開中介資料。付費報價透過 PayanAgent 以 USDC 結算，可能產生實際支出。報告與回執僅證明觀察到的公開中介資料、未付費 402 行為、請求摘要、雜湊與回傳的產物；不證明市場背書、結算、安全認證、保管、KYC/AML 涵蓋、買家採用或下游執行。產生的發布包不會發布上架資訊、聯絡買家或聲稱獲得市場背書。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 GateCheck by LarryBuildsAI，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "gatecheck": {
      "type": "http",
      "url": "https://proofbeforepay.vercel.app/gatecheck/mcp"
    }
  }
}

README

GateCheck by LarryBuildsAI

GateCheck is a hosted remote MCP server and x402 readiness surface for paid agent-tool sellers.

Use it before public submission, promotion, or paid agent routing to verify that a paid x402 or MCP tool is discoverable, inspectable, and claim-bounded.

Hosted MCP Endpoint

  • Remote MCP URL: https://proofbeforepay.vercel.app/gatecheck/mcp
  • Transport: streamable-http
  • Public introspection: initialize and tools/list
  • Protected tool execution: bearer auth may be required for direct production calls
  • Product homepage: https://proofbeforepay.vercel.app/gatecheck
  • Scorecard: https://github.com/LarryLemonBot/gatecheck/blob/main/scorecard.md
  • Product card: https://proofbeforepay.vercel.app/gatecheck/product-card.md
  • Marketplace index: https://proofbeforepay.vercel.app/gatecheck/marketplaces.json

MCP Client Config

json
{  "mcpServers": {    "gatecheck": {      "type": "streamable-http",      "url": "https://proofbeforepay.vercel.app/gatecheck/mcp"    }  }}

If your client supports request headers and you have a GateCheck production token, add:

json
{  "Authorization": "Bearer YOUR_GATECHECK_TOKEN"}

Do not put private keys, wallet secrets, cookies, customer data, or marketplace dashboard credentials into public metadata.

Tools

GateCheck currently exposes six MCP tools:

  • boundary_guard_check
  • scan_x402_resource
  • probe_x402_paid_path
  • check_agent_tool_readiness
  • generate_x402_launch_pack
  • generate_trust_receipt

Public tools/list is available so buyers, agents, and directories can inspect the tool inventory before protected calls.

Buy through PayanAgent

These fixed-price offers settle in USDC through PayanAgent and automatically return the purchased GateCheck artifact:

Buyer input is validated before PayanAgent presents the payment flow. Generated launch packs contain listing and approval-review artifacts; they do not publish listings, contact buyers, or claim marketplace endorsement.

What GateCheck Checks

  • Product-scoped discovery: homepage, llms.txt, agents.txt, product card, skill card, sitemap, and MCP server card.
  • MCP inventory: public initialize and tool-list introspection.
  • x402 behavior: unpaid 402 challenge metadata without submitting payment signatures or moving funds.
  • Listing readiness: buyer-facing copy, prices, evidence links, launch-pack artifacts, and claim boundaries.

Claim Boundary

GateCheck reports and receipts prove observed public metadata, unpaid 402 behavior, request summaries, hashes, and returned artifacts only.

They do not prove marketplace endorsement, settlement, security certification, custody, KYC/AML coverage, buyer adoption, or downstream execution.

Product Boundary

GateCheck is separate from Signal Desk and ResultRail.

This repository is the public distribution and marketplace-submission surface for GateCheck only.

Current Public Visibility

Verified public surfaces include:

  • GateCheck remote MCP endpoint: https://proofbeforepay.vercel.app/gatecheck/mcp
  • Official MCP Registry: https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.LarryLemonBot/gatecheck
  • Smithery: https://smithery.ai/servers/larrybuildsai/gatecheck
  • Glama: https://glama.ai/mcp/connectors/io.github.LarryLemonBot/gatecheck
  • mcpservers.org: https://mcpservers.org/servers/x402-resource-scanner-vercel-app-gatecheck-marketplaces

Known external blockers: the former MCP.so listing URL currently returns 404, and https://xpay.tools/agents.txt has not exposed gatecheck. Neither surface is claimed as live.

Marketplace Packet

  • Cline submission draft: marketplaces/cline-submission.md
  • MCP.Directory submission draft: marketplaces/mcp-directory-submission.md
  • Server manifest: server.json
  • Public scorecard: scorecard.md
  • Logo SVG: assets/gatecheck-logo.svg
  • Logo PNG: assets/gatecheck-logo.png

來源：README.md，提交 14dec1f

工具

0
工具後設資料尚未被收錄。

版本歷史

1
  1. v0.1.3最新Sep 16, 2026