Blockchain JSON-RPC on 23 EVM chains for AI agents — Ethereum, Base, Arbitrum, plus young chains like Robinhood Chain, Plasma and Ink. Free reads with no key; heavy methods (eth_getLogs, trace, debug) via a free API key or x402 USDC pay-per-call.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
process.env. You'll be asked to provide them before it can run.NODEFLARE_API_KEY— Then use the recipes below (/nodeflare:balance, /nodeflare:token, …). To unlock heavy methods, export in your shell before starting Claude Code ([free key, 3M CU/month](https://nodeflare.app)).X402_PRIVATE_KEY— "env": { "": "0x…" }[](https://m8ven.ai/mcp/nodeflare-app-nodeflare-mcp-11rasl)