The first MCP server that charges per call (no subscription ever)

No Subscription. No API Key. Pay $0.02.

Most APIs charge monthly. NEXUS charges per call using x402 on Base.

Add to Claude Desktop:

{"mcpServers":{"nexus":{"url":"https://nexus-agent.mcp.xpay.sh/mcp"}}}

Then ask Claude: What is the BTC price? or What is Reddit saying about Ethereum?

Tools

• crypto_prices — $0.02/call
• reddit_sentiment — $0.05/call
• defi_tvl — $0.02/call
• stock_prices — $0.02/call

How payment works

You get an API key from xpay.tools. Your Claude agent pays automatically per tool call in USDC on Base. No monthly bill, no unused credits.

Get started at xpay.tools →

GitHub: RileyCraig14/nexus-agent