fabrials-mcp
Hosted MCP gateway at https://mcp.fabrials.com. x-search tools call xAI
with your API key — there is no shared Fabrials quota.
Hetzner Cloud is a separate server with a Cloud API token.
Create a key at
console.x.ai.
Put it in XAI_API_KEY. A Fabrials fabric virtual key
(sk-fb-…) also works: search spends that relay's SuperGrok
pool. Do not send a Fabrials cookie or a SuperGrok JWT from
~/.grok/auth.json.
Grok Build
grok plugin marketplace add grok-insider/fabrials-mcp grok plugin install x-search --trust grok plugin install hetzner --trust grok plugin install syl --trust grok plugin install syl-companion --trust
[mcp_servers.x-search]
url = "https://mcp.fabrials.com/mcp"
headers = { Authorization = "Bearer ${XAI_API_KEY}" }
[mcp_servers.hetzner]
url = "https://mcp.fabrials.com/hetzner/mcp"
headers = { Authorization = "Bearer ${HCLOUD_TOKEN}" }
[mcp_servers.syl] command = "syl" args = ["mcp"]
[mcp_servers.syl-companion] command = "syl" args = ["companion-mcp"]
Syl and Companion are local stdio (syl on PATH).
Real desktop and Companion writes stay off until enabled.
Claude Code
claude plugin marketplace add https://mcp.fabrials.com/marketplace.json
VS Code / Copilot
MCP Registry URL: https://mcp.fabrials.com
Cursor / raw HTTP
{
"mcpServers": {
"x-search": {
"type": "http",
"url": "https://mcp.fabrials.com/mcp",
"headers": { "Authorization": "Bearer ${XAI_API_KEY}" }
},
"hetzner": {
"type": "http",
"url": "https://mcp.fabrials.com/hetzner/mcp",
"headers": { "Authorization": "Bearer ${HCLOUD_TOKEN}" }
}
}
}
Git: https://github.com/grok-insider/fabrials-mcp.git · marketplace.json · /v0.1/servers · healthz