earnrate for Grok
io.github.cwasley/earnrate
Which credit card earns the most at a merchant, from your cards or every card, and why.
client:Grok
transport:streamable-http
runtime:npm
Install earnrate in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"earnrate": {
"type": "http",
"url": "https://mcp.earnrate.dev"
}
}
}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