45 pay-per-call AI agent tools + wallet-owned agent memory. Scraping, SEO, lint, crypto. x402 USDC
Connect Runs on your machine
claude mcp add webbersites-x402-mcp -e EVM_PRIVATE_KEY=<EVM_PRIVATE_KEY> -e X402_MAX_PRICE=<X402_MAX_PRICE> -- npx -y [email protected]{
"mcpServers": {
"webbersites-x402-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>",
"X402_MAX_PRICE": "<X402_MAX_PRICE>"
}
}
}
}{
"mcpServers": {
"webbersites-x402-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>",
"X402_MAX_PRICE": "<X402_MAX_PRICE>"
}
}
}
}{
"servers": {
"webbersites-x402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>",
"X402_MAX_PRICE": "<X402_MAX_PRICE>"
}
}
}
}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 |
|---|---|
EVM_PRIVATE_KEYOptional, secret | 0x… private key of a dedicated hot wallet holding USDC on Base mainnet; each tool call pays for itself. Omit to run in quote mode (tools return prices and payment requirements instead of data). |
X402_MAX_PRICEOptional | Maximum USD price per call; more expensive tools are refused before any payment. Default 0.50 (10x headroom — prices currently range $0.001-$0.05); lower it to cap spend harder. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 9 Jul 2026 |
| Last updated | 9 Jul 2026 |
| Registry name | io.github.webberdesign/webbersites-x402-mcp |
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