Free payee check for AI agents paying USDC: flags lookalike, reserved and own addresses.
Connect Runs on your machine
claude mcp add mcp -e NOTOL_API_URL=<NOTOL_API_URL> -e NOTOL_SENDER=<NOTOL_SENDER> -- npx -y @notol/[email protected]{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@notol/[email protected]"
],
"env": {
"NOTOL_API_URL": "<NOTOL_API_URL>",
"NOTOL_SENDER": "<NOTOL_SENDER>"
}
}
}
}{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@notol/[email protected]"
],
"env": {
"NOTOL_API_URL": "<NOTOL_API_URL>",
"NOTOL_SENDER": "<NOTOL_SENDER>"
}
}
}
}{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@notol/[email protected]"
],
"env": {
"NOTOL_API_URL": "<NOTOL_API_URL>",
"NOTOL_SENDER": "<NOTOL_SENDER>"
}
}
}
}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 |
|---|---|
NOTOL_API_URLRequired | Notol api base URL. https://api.notol.app for Arc mainnet. |
NOTOL_SENDEROptional | Optional. The public address the agent pays from, used as the sender in payee checks. Not a key. |
Details
| Package | @notol/[email protected] (NPM, stdio) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | app.notol/mcp |
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