Mercury is a pay-per-call MCP server that lets AI agents discover and call financial data tools using the x402 HTTP payment protocol. 18 tools covering crypto prices, DeFi liquidity, NFT data, on-chain analytics, and more. tools/list is free — tools/call is billed per call using your Mercury API key. Connect by URL: https://network.mercury-hq.com/mcp
Server Config
{
"mcpServers": {
"mercury-x402-mcp": {
"command": "npx",
"args": [
"mercury-x402-mcp"
]
}
}
}