X402 MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 59 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.
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.
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 -- npx -y x402node-mcp
{
"mcpServers": {
"x402-mcp": {
"args": [
"-y",
"x402node-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.x402-mcp]
command = "npx"
args = ["-y", "x402node-mcp"]
{
"mcpServers": {
"x402-mcp": {
"args": [
"-y",
"x402node-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"x402-mcp": {
"args": [
"-y",
"x402node-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
X402_PRIVATE_KEY (Base EOA private key (hex, 0x-prefixed) with USDC for signing x402 payments).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.