Castle MCP by usefulapi for Grok
io.usefulapi/castle
Investigate security events and manage the allow/deny lists an analyst acts on.
client:Grok
transport:streamable-http
tools:14
Install Castle MCP by usefulapi in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"castle": {
"type": "http",
"url": "https://castle.usefulapi.io/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
What Grok can do once it is connected
- castle_get_events_schema
- castle_search_events
- castle_group_events
- castle_search_lists
- castle_get_list
- castle_search_list_items
- castle_count_list_items
- castle_get_list_item
- castle_create_list
- castle_update_list
- castle_create_list_item
- castle_update_list_item
- castle_archive_list_item
- castle_unarchive_list_item