tollbooth-x402
Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.
Install
npmstdio
npx -y tollbooth-x402 Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-github-solomonisblack-tollbooth-x402": {
"command": "npx",
"args": [
"-y",
"tollbooth-x402"
]
}
}
} Source: official MCP Registry record · registry name io.github.SolomonisBlack/tollbooth-x402 · published 2026-07-18 · updated 2026-07-18. Not an endorsement; review the code before connecting it to anything sensitive.