X402 MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 64 installs a week from npm. Last commit 18 Jul 2026.
Hundreds of x402-paid APIs as MCP tools, auto-discovered from Coinbase Bazaar. USDC on Base+Solana.
Nothing serious here today
Today is the operative word: we check X402 MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add x402-mcp -e 'X402_PRIVATE_KEY=<X402_PRIVATE_KEY>' -- npx -y x402node-mcp{
"mcpServers": {
"x402-mcp": {
"command": "npx",
"args": [
"-y",
"x402node-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>"
}
}
}
}[mcp_servers.x402-mcp]
command = "npx"
args = ["-y", "x402node-mcp"]
env = { X402_PRIVATE_KEY = "<X402_PRIVATE_KEY>" }{
"mcpServers": {
"x402-mcp": {
"command": "npx",
"args": [
"-y",
"x402node-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"x402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"x402node-mcp"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>"
}
}
}
}Put your own value in place of
<X402_PRIVATE_KEY> (Base EOA private key (hex, 0x-prefixed) with USDC for signing x402 payments).
The author’s registry entry marks it as required.
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X402 MCP — questions
Answers built from our own checks of this server.