What is x402 and how does payment work?
x402 is an HTTP-native pay-per-call protocol. Each API call requires a micropayment in USDC on Base L2, handled automatically by x402-aware clients without signup or API keys.
@Br0ski777
基本信息
NFT collection floor price, volume, holders, rarity data. Ethereum and Base via Reservoir. -- x402 micropayment API + MCP server for AI agents
使用下面的配置,将此服务器添加到你的 MCP 客户端。
{
"mcpServers": {
"nft-floor": {
"url": "https://nft-floor-production.up.railway.app/mcp",
"transport": "sse"
}
}
}GET
GET
Nft Floor X402 is an MCP server that provides NFT collection floor price, volume, holders, and rarity data for Ethereum and Base via Reservoir. It uses pay-per-call via x402 (USDC on Base L2) with no API key, no signup, and no rate-limit wall.
Add the server URL to your MCP client config (e.g., Claude Desktop, Cursor, ElizaOS) as shown in the README. For HTTP access, use a x402-aware client that handles the 402 payment challenge automatically.
x402 is an HTTP-native pay-per-call protocol. Each API call requires a micropayment in USDC on Base L2, handled automatically by x402-aware clients without signup or API keys.
Ethereum and Base are supported. The default chain is Ethereum; you can specify `base` as a parameter.
It returns floor price (ETH and USD), 24h volume, total supply, holder count, listed count, listed percentage, and top trait floor prices.
It returns rarity rank, rarity score, total supply, token attributes with frequency and trait floor prices, and an estimated value based on rarity.
Collection data costs $0.005 per call; token rarity costs $0.003 per call. Payments are processed via x402 using USDC on Base L2.

Model Context Protocol Servers
This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable,
🔥 MaxKB is an open-source platform for building enterprise-grade agents. 强大易用的开源企业级智能体平台。
YC (S26) | Open Computer History | Continuously record your company computer work, map your workflows, help you find work worth automating, and power your agents' context

A free remote MCP server for The Living Bread. Bible passages read word for word from a stored public domain text with an evidence label, keyword search and cross references, real churches, gatherings and prayer groups w
评论