PrismPoster Creator Tools for Grok
com.prismposter/creator-tools
Social media frame sizes with sourced safe areas, plus aspect-ratio, bitrate and subtitle tools.
client:Grok
transport:streamable-http
runtime:npm
tools:7
Install PrismPoster Creator Tools in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"creator-tools": {
"type": "http",
"url": "https://www.prismposter.com/api/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