lol
53 security & enrichment MCP tools for AI agents. Contract scanning, threat intel, OSINT, crypto data, DNS/WAF recon. Pay-per-call via HTTP 402 + USDC on Base mainnet. No API keys. First call free.
README
x402 MCP Registry — 53 Pay-per-Call Tools for AI Agents
Free, self-hosted MCP server registry. 53 security and enrichment tools that AI agents pay for via HTTP 402 + USDC on Base mainnet. No API keys, no signup. First call free.
Quick Connect
json { "mcpServers": { "x402-registry": { "type": "sse", "url": "https://etherealgoodsco.store/mcp/sse" } } }
Paste into Claude Desktop, Cursor, or Windsurf. 53 tools auto-discover.
Products
| Category | Tools | Price Range |
|---|---|---|
| Security | Contract audit, CVE lookup, URL scan, cert hunt, domain age, email breach, password strength, header audit | $0.01–$0.25 |
| Crypto/DeFi | Token snapshot, tx verify, gas oracle, ENS resolve, LP check, deployer history, price feed, top tokens | $0.01–$0.10 |
| Enrichment | DNS bundle, IP geo, WHOIS, DNSBL, SSL cert, HTTP status, reverse IP, subdomain scan, port scan, tech stack detect | $0.01–$0.10 |
| Bundles | DeFi scan, threat profile, crypto intel, web audit, full diligence | $0.25–$2.00 |
| Tools | URL expand, email validate, timezone, language detect, hash ID, base64 codec | $0.01–$0.05 |
How It Works
- Agent sends request → Server returns HTTP 402 Payment Required
- Agent signs USDC transfer on Base mainnet → CDP facilitator settles
- Agent retries with payment proof → Server returns data (200)
Full API docs: https://etherealgoodsco.store/docs
Stack
- FastAPI + Coinbase x402 Python SDK
- CDP facilitator (EdDSA JWT auth)
- Base mainnet (eip155:8453)
- Caddy + Let's Encrypt (auto-TLS)
- 53 MCP tools via SSE transport
- Free trial auto-seeding, volume discount ladder, response cache, rate limiter
Discovery
- https://etherealgoodsco.store — Registry homepage
- https://etherealgoodsco.store/docs — Interactive API docs
- https://etherealgoodsco.store/mcp/sse — MCP endpoint
- https://etherealgoodsco.store/.well-known/x402.json — x402 discovery
- https://etherealgoodsco.store/.well-known/mcp/server-card.json — Server card
</file_contents>
Recommended Servers
playwright-mcp
A Model Context Protocol server that enables LLMs to interact with web pages through structured accessibility snapshots without requiring vision models or screenshots.
Magic Component Platform (MCP)
An AI-powered tool that generates modern UI components from natural language descriptions, integrating with popular IDEs to streamline UI development workflow.
Audiense Insights MCP Server
Enables interaction with Audiense Insights accounts via the Model Context Protocol, facilitating the extraction and analysis of marketing insights and audience data including demographics, behavior, and influencer engagement.
VeyraX MCP
Single MCP tool to connect all your favorite tools: Gmail, Calendar and 40 more.
graphlit-mcp-server
The Model Context Protocol (MCP) Server enables integration between MCP clients and the Graphlit service. Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a Graphlit project - and then retrieve relevant contents from the MCP client.
Kagi MCP Server
An MCP server that integrates Kagi search capabilities with Claude AI, enabling Claude to perform real-time web searches when answering questions that require up-to-date information.
Neon Database
MCP server for interacting with Neon Management API and databases
E2B
Using MCP to run code via e2b.
Exa Search
A Model Context Protocol (MCP) server lets AI assistants like Claude use the Exa AI Search API for web searches. This setup allows AI models to get real-time web information in a safe and controlled way.
Qdrant Server
This repository is an example of how to create a MCP server for Qdrant, a vector search engine.