verify402 for Grok
io.github.a32116150-ctrl/verify402-mcp
Free x402 preflight gate plus paid on-chain truth checks for AI agents.
client:Grok
transport:stdio
runtime:npm
Install verify402 in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"verify402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"verify402-mcp"
],
"env": {
"VERIFY402_URL": "<VERIFY402_URL>",
"EVM_PRIVATE_KEY": "<EVM_PRIVATE_KEY>",
"VERIFY402_NETWORKS": "<VERIFY402_NETWORKS>",
"MAX_PAYMENT_USD": "<MAX_PAYMENT_USD>",
"MAX_DAILY_USD": "<MAX_DAILY_USD>"
}
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs