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MCP server for x402 AI agent payments on Base chain with built-in USDC payment handling.
About
MCP server for x402 AI agent payments on Base chain with built-in USDC payment handling.
Security Report
7.5
Moderate7.5Low RiskValid MCP server (5 strong, 7 medium validity signals). 5 known CVEs in dependencies Package registry verified. Imported from the Official MCP Registry.
10 files analyzed · 6 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-kten-agent-x402-mcp-server": {
"args": [
"-y",
"hermes-asia-x402-mcp-server"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Hermes Asia x402 MCP Server
Exposes Hermes Asia intelligence products as MCP tools with built-in x402 USDC payment handling on Base chain.
Products (11 total)
API Products (high volume, low cost)
asia_news_api— $0.005 USDC — Real-time Asian news headlinescn_jp_currency_api— $0.001 USDC — USD/CNY/JPY exchange ratesasia_market_data— $0.01 USDC — Macro economic data
Intelligence Products (high value)
asia_intelligence— $0.02 USDC — China/Taiwan/Japan trade policyjapanese_research— $0.02 USDC — Nikkei news + BOJ policybilingual_bridge— $0.03 USDC — CN-JP patent translationanime_industry_intel— $0.02 USDC — Japan anime industry investmentkabukicho_guide— $0.02 USDC — Tokyo night economy investmentchina_silver_economy— $0.02 USDC — China 297M seniors marketlying_flat_report— $0.02 USDC — China's lying-flat phenomenonchina_real_estate_2026— $0.03 USDC — China property market 2026
Installation
# For Claude Code / Franklin / any MCP client
npx hermes-asia-x402-mcp@latest
# Or install globally
npm install -g hermes-asia-x402-mcp-server
Configuration
Set the wallet private key and Worker URL:
export X402_WALLET_PRIVATE_KEY="0x..."
export WORKER_URL="https://base-worker-01.j23726919.workers.dev"
MCP Client Integration
Claude Code:
claude mcp add hermes-asia -- npx hermes-asia-x402-mcp@latest
Cursor / Other MCP clients: Add to your MCP settings JSON:
{
"mcpServers": {
"hermes-asia": {
"command": "npx",
"args": ["hermes-asia-x402-mcp@latest"]
}
}
}
Payment Flow
- AI agent calls an MCP tool (e.g.
asia_news_api) - MCP Server POSTs to Hermes Worker → receives HTTP 402
- MCP Server parses
WWW-Authenticateheader (x402 v2 manifest) - MCP Server signs manifest with wallet private key (EIP-191)
- MCP Server retries with
Authorizationheader - Worker returns data; USDC transferred on-chain
No API keys. No subscriptions. Pay per call.
Requirements
- Node.js >= 20.0.0
- Wallet with USDC on Base chain (for payment)
- ETH on Base chain (for gas)
License
MIT
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