x402station.io: independent risk-signal layer for x402 endpoints before agents pay.
Connect Runs on your machine
claude mcp add x402station -e AGENT_PRIVATE_KEY=<AGENT_PRIVATE_KEY> -e X402STATION_BASE_URL=<X402STATION_BASE_URL> -- npx -y [email protected]{
"mcpServers": {
"x402station": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"X402STATION_BASE_URL": "<X402STATION_BASE_URL>"
}
}
}
}{
"mcpServers": {
"x402station": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"X402STATION_BASE_URL": "<X402STATION_BASE_URL>"
}
}
}
}{
"servers": {
"x402station": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"X402STATION_BASE_URL": "<X402STATION_BASE_URL>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
AGENT_PRIVATE_KEYRequired, secret | 0x-prefixed 64-hex-char private key. Account must hold Base mainnet USDC. Required for any paid tool call. |
X402STATION_BASE_URLOptional | Optional override. Only https://x402station.io or http(s)://localhost are accepted to prevent payload hijacking; any other value makes the adapter refuse to start. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 2 Jun 2026 |
| Last updated | 2 Jun 2026 |
| Registry name | io.github.sF1nX/x402station |
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