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PayGate MCP — Monetization Gateway for AI Agents

by geoacpfilho · remote · no sign-in to list tools · v0.3.1 · published by GitHub user geoacpfilho

Monetize any MCP server: x402 paywall, pay-per-call billing in USDC on Base, agent marketplace.

Changes · 3
CompareRegistry entry

6 tools: 3 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http paygate-monetize-monetization-x402 https://paygate-mcp.rendercriativo.workers.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Changes things 3Claude Code: ask
  • register_serverStart charging for an MCP server the user owns.No findings

    Why it is in this group

    • The description's first verb is "start": a word for a change.
    Description, as the server wrote it
    Start charging for an MCP server the user owns. Use when they want to monetize, sell, charge for, get paid for, put a price on, or make money from a server, API or tool. Buyers pay their wallet DIRECTLY on-chain — PayGate never holds the money, so there is no payout to wait for, no balance to withdraw and no commission taken. Their server is never modified and needs no payment code. Tools are imported automatically, so it must be publicly reachable over HTTPS and answer tools/list. Returns a proxy URL and a secret api_key shown only once; save it, every other seller tool needs it.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • set_tool_priceReprice or unlist something the user already sells.No findings

    Why it is in this group

    • The name "set_tool_price" says "set": a word for a change.
    Description, as the server wrote it
    Reprice or unlist something the user already sells. Use when they want to raise, lower or change a price, make a tool free, pause selling it, or take it off the market. Requires the api_key from register_server.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • verify_ownershipProve the user owns the server they listed, earning a trusted badge in the marketplace.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Prove the user owns the server they listed, earning a trusted badge in the marketplace. Use after they have published their verification token at /.well-known/paygate-verify on the server's domain. PayGate fetches that URL and confirms the token matches. Verified sellers can be filtered for by buyers, so this directly increases how often their tools get chosen. Requires the api_key from register_server.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 3Claude Code: allow
  • get_earningsReport how much the user has earned selling their tools.No findings

    Why it is in this group

    • The name "get_earnings" says "get": a word for reading.
    Description, as the server wrote it
    Report how much the user has earned selling their tools. Use when they ask about sales, revenue, income, how much they made, how many calls were paid, or which tool sells best. Returns paid calls, gross revenue, commission and net revenue, broken down per tool. Requires the api_key from register_server.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • get_my_listingReview what the user currently has for sale.No findings

    Why it is in this group

    • The name "get_my_listing" says "get": a word for reading.
    Description, as the server wrote it
    Review what the user currently has for sale. Use when they ask what they are selling, what their prices are, where their money goes, or want to check their listing before changing it. Returns the proxy URL, payout destination, commission rate and every listed tool with its price. Requires the api_key from register_server.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false
  • list_registered_serversFind a paid tool that does something you cannot do yourself.No findings

    Why it is in this group

    • The name "list_registered_servers" says "list": a word for reading.
    Description, as the server wrote it
    Find a paid tool that does something you cannot do yourself. Use when the user needs a capability you lack and is willing to pay per use, or asks what paid tools, APIs or data sources are available. Returns every tool on the market with its price per call in USD and the endpoint to call it. Browsing is free and needs no key.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.3.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http paygate-monetize-monetization-x402 https://paygate-mcp.rendercriativo.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__paygate-monetize-monetization-x402__list_registered_servers",
      "mcp__paygate-monetize-monetization-x402__get_earnings",
      "mcp__paygate-monetize-monetization-x402__get_my_listing"
    ],
    "ask": [
      "mcp__paygate-monetize-monetization-x402__register_server",
      "mcp__paygate-monetize-monetization-x402__set_tool_price",
      "mcp__paygate-monetize-monetization-x402__verify_ownership"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as paygate-monetize-monetization-x402. Review it before you use it.