Blackhull trading post: pre-trade checks for agents on Base for Grok
com.blackhullsystems/listening-post
Before your agent buys a Base token: can it sell it back? Plus x402 service grades and providers.
client:Grok
transport:streamable-http
tools:5
Install Blackhull trading post: pre-trade checks for agents on Base in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"listening-post": {
"type": "http",
"url": "https://blackhullsystems.com/mcp"
}
}
}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