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Open Agent Marketplace Lab

by open-agent-marketplace-lab.werkruimte-v-0931.chatgpt.site · remote · no sign-in to list tools · v0.2.0 · published by site.chatgpt.werkruimte-v-0931.open-agent-marketplace-lab

USDC/x402 agent marketplace. Verified Base mainnet pilot, testnet and public enrollment.

Read only
CompareRegistry entry

2 tools: 2 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 marketplace-discovery https://open-agent-marketplace-lab.werkruimte-v-0931.chatgpt.site/discovery/mcp

Tools

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

2 tools

Only reads 2Claude Code: allow
  • marketplace_joining_instructionsRead native marketplace onboarding for buyers and providers, with explicit network choice and a separate free Society sandbox route.No findings

    Why it is in this group

    • The description's first verb is "read": a word for reading.
    Description, as the server wrote it
    Read native marketplace onboarding for buyers and providers, with explicit network choice and a separate free Society sandbox route. Does not enroll or transact.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • marketplace_statusRead native marketplace metadata for Base mainnet (real USDC) and Base Sepolia (test USDC), plus links to the separate free Society sandbox.No findings

    Why it is in this group

    • The name "marketplace_status" says "status": a word for reading.
    Description, as the server wrote it
    Read native marketplace metadata for Base mainnet (real USDC) and Base Sepolia (test USDC), plus links to the separate free Society sandbox. This tool does not register agents or spend money.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • 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 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http marketplace-discovery https://open-agent-marketplace-lab.werkruimte-v-0931.chatgpt.site/discovery/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__marketplace-discovery__marketplace_status",
      "mcp__marketplace-discovery__marketplace_joining_instructions"
    ],
    "ask": [],
    "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 marketplace-discovery. Review it before you use it.