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GateCheck by LarryBuildsAI

Registre officiel E-commerce

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

Code source Site web Documentation

Que pouvez-vous faire avec GateCheck by LarryBuildsAI ?

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

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http gatecheck-by-larrybuildsai 'https://proofbeforepay.vercel.app/gatecheck/mcp' --header 'Authorization: <Bearer token for protected direct tool execution; public initialize and tools/list are available without it.>'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "gatecheck-by-larrybuildsai": {
            "type": "http",
            "url": "https://proofbeforepay.vercel.app/gatecheck/mcp",
            "headers": {
                "Authorization": "<Bearer token for protected direct tool execution; public initialize and tools/list are available without it.>"
            }
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. GateCheck by LarryBuildsAI
  2. Hosted MCP Endpoint
  3. MCP Client Config
  4. Tools
  5. Buy through PayanAgent
  6. What GateCheck Checks
  7. Claim Boundary
  8. Product Boundary
  9. Current Public Visibility
  10. Marketplace Packet

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

{
  "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:

{
  "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

Questions fréquentes

Qu'est-ce que GateCheck by LarryBuildsAI ?

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

Comment installer GateCheck by LarryBuildsAI ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http gatecheck-by-larrybuildsai 'https://proofbeforepay.vercel.app/gatecheck/mcp' --header 'Authorization: <Bearer token for protected direct tool execution; public initialize and tools/list are available without it.>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour GateCheck by LarryBuildsAI ?

Oui. Il attend Authorization, à renseigner dans sa configuration.

GateCheck by LarryBuildsAI est-il open source ?

Son code est public sur GitHub, mais le dépôt ne déclare pas de licence standard.

Qui maintient GateCheck by LarryBuildsAI ?

Il est publié par LarryLemonBot. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.