Grok x OnlyFans & Fansly

What this does

Grok can call Fans API endpoints directly — send messages, pull stats, manage posts — through the OnlyFans MCP server. Add it once as a custom connector in Grok, then ask Grok to run OnlyFans tasks in plain English from any chat.

Works with grok.com, Grok Business / Enterprise, and the xAI API.

Prerequisites

• A Grok account
• An Fans API account
• At least one connected OnlyFans account

Step-by-step

Grok uses remote MCP over HTTP. The setup lives behind Connectors.

1. Open Grok Connectors

Go to grok.com/connectors, click New Connector, then select Custom.

2. Add a custom connector

Enter these details:

• Name — OnlyFans MCP (or any label you prefer)
• MCP server URL:

https://app.onlyfansapi.com/mcp/onlyfans-mcp

3. Authorize Grok on Fans API

Grok redirects you to app.onlyfansapi.com. Click Authorize.

You'll land back in Grok with the connector marked as connected. Done — Grok now has 350+ tools across chats, fans, and earnings.

4. Prompt Grok

Open a new chat and ask Grok to do something. It discovers the OnlyFans MCP tools automatically.

Use the xAI API

Building your own agent on Grok? Pass the OnlyFans MCP server as a remote MCP tool to the xAI Responses API. Grok connects, lists the tools, and calls them on its own — no tool-call handling on your side.

Put your Fans API key in authorization. Grok sends it as a Bearer token, so paste the bare key:

curl https://api.x.ai/v1/responses \
  -H "Authorization: Bearer $XAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-4.3",
    "input": [
      { "role": "user", "content": "Summarize today'\''s earnings per creator." }
    ],
    "tools": [
      {
        "type": "mcp",
        "server_url": "https://app.onlyfansapi.com/mcp/onlyfans-mcp",
        "server_label": "onlyfans",
        "authorization": "YOUR_FANS_API_KEY",
        "allowed_tools": ["listAccounts", "fansly_listAccounts"]
      }
    ]
  }'

Example use cases

6 prompts that replace daily ops grunt work. Drop them into any Grok chat with the connector enabled:

• "Summarize today's PPV revenue per creator." — replaces the morning dashboard check
• "List my top 20 spenders this week with their last message timestamp." — no more switching dashboards per creator
• "Find every chat with no reply in 24h and surface them." — dropped chats never make it to morning standup
• "Draft a renewal DM for fans churning in the next 7 days. Don't auto-send." — Grok drafts, your team approves and ships
• "Identify whales who haven't messaged in 14 days — draft a re-engagement DM." — reactivate dormant high-spenders before they unsub
• "Compare this month's revenue on OnlyFans and Fansly per creator." — both platforms in one answer

Troubleshooting

See also

• OnlyFans MCP overview — what MCP is, how it works, and supported clients
• Claude MCP install guide
• ChatGPT MCP install guide
• Manus MCP install guide
• Develop with AI Agents — llms.txt, OpenAPI schema, onlyfansapi-skill
• API Reference — every endpoint exposed as an MCP tool