GateCheck By LarryBuildsAI
Run seller preflight on paid x402 and MCP tools so marketplace listings pass readiness before you publish on xpay or similar portals.
Overview
GateCheck is an MCP server for the Ship phase that runs preflight checks on paid x402 and MCP tools before marketplace listing.
What is this MCP server?
- Preflight checks tailored to paid x402 and MCP tools before marketplace listing
- Product positioning as GateCheck by LarryBuildsAI with Glama and server-card discovery URLs
- Integrates with Boundary Guard x402 ecosystem (xpay proxy and portal endpoints in registry metadata)
- Search-oriented coverage: seller readiness, unpaid 402 probe, MCP launch pack, agent tool readiness checker
- Explicitly separate from Signal Desk and ResultRail for focused listing gate workflow
- Product name GateCheck by LarryBuildsAI in registry metadata
- Homepage and server-card hosted on proofbeforepay.vercel.app/gatecheck
- Related stack: Boundary Guard x402, Signal Desk, ResultRail (separate products)
What problem does it solve?
Marketplace rejections and buyer distrust hurt when you list paid agent tools without a standardized seller readiness pass.
Who is it for?
Builders preparing first paid MCP or x402 listings who already have an endpoint and need GateCheck-branded preflight aligned with Boundary Guard tooling.
Skip if: Builders still validating product-market fit with no paid endpoint, or teams needing full penetration testing of custom backends unrelated to x402 listing rules.
What do I get? / Deliverables
After adding GateCheck, your agent can complete listing-oriented preflight so you ship to xpay or Glama with clearer readiness evidence.
- Seller readiness preflight outcome oriented to marketplace listing
- Pointers to product card and server-card assets for listing copy
- Clear separation from Signal Desk (spend routing) and ResultRail (data packs)
Recommended MCP Servers
Journey fit
GateCheck targets the last mile before distribution—when a tool is built but not yet listed as a paid agent offering. Launch subphase fits marketplace listing prep and seller readiness reports distinct from day-to-day security patching.
How it compares
Marketplace seller preflight MCP, not a pay-per-success data API like ResultRail.
Common Questions / FAQ
Who is GateCheck for?
Indie developers and small teams publishing paid MCP or x402 agent tools who want LarryBuildsAI’s listing preflight inside an MCP client before going live on marketplaces.
When should I use GateCheck?
Use it in ship/launch when the tool works locally but you have not yet listed on xpay, Glama, or similar—and you need seller readiness and launch-pack alignment checks first.
How do I add GateCheck to my agent?
Register mcp:io.github.LarryLemonBot/gatecheck from the MCP registry, then point your client at the publisher server-card and homepage URLs on proofbeforepay.vercel.app/gatecheck per their well-known metadata.