petra402 for Grok
io.github.pedroquatro/petra402
Public web page to markdown, paid per call with x402. First 10 calls free, no signup.
client:Grok
transport:streamable-http
tools:1
Install petra402 in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"petra402": {
"type": "http",
"url": "https://petra402.com/mcp?src=mcp-registry"
}
}
}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