AI agents

Use BlitzGremlin from Claude Code, Cursor or any assistant that can connect to an MCP server.

If you already talk to an AI assistant every day, it can work with BlitzGremlin for you. Connect it once and you can ask it what to change in your lineup, hand it your league’s pages to keep BlitzGremlin up to date, or tell it which moves you made.

What your agent can do

• Read your leagues and this week’s calls: start/sit, waiver pickups with bids, and trades, each with the reasoning.
• Update BlitzGremlin’s copy of your league from pages you give it: rosters, settings, the schedule, transactions and pending claims. It can show you what would change before saving.
• Mark a call done after you make the move, or mute it.
• Write a message for a trade call, run practice drafts, give pick advice on draft night, and play the practice season.

What it can’t do

• BlitzGremlin never changes anything on Sleeper, Yahoo, ESPN or any other site. You still make every move yourself.
• An agent can’t sign in, pay, get a refund, change your email or delete your account.
• A Deep Read costs a paid credit, so an agent should only order one when you ask it to.
• An agent needs your season pass for the same features you do.

Connect an agent

1. Open Settings → Agent access, give the token a name and create it. Copy it right away: it is shown once.
2. Add BlitzGremlin to your agent as an MCP server at https://blitzgremlin.com/mcp (streamable HTTP) that sends the header Authorization: Bearer YOUR_TOKEN.

In Claude Code, that is one command:

claude mcp add --transport http blitzgremlin https://blitzgremlin.com/mcp --header "Authorization: Bearer YOUR_TOKEN"

In Cursor, add this to mcp.json:

{
  "mcpServers": {
    "blitzgremlin": {
      "url": "https://blitzgremlin.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_TOKEN" }
    }
  }
}

Then try asking:

• “What should I change in my BlitzGremlin lineup this week?”
• “Here’s my Yahoo team page. Update my roster in BlitzGremlin and show me what changed.”
• “I claimed the waiver pickup BlitzGremlin suggested. Mark it done.”

ChatGPT, claude.ai and Claude Desktop

These apps connect to MCP servers through a sign-in flow that BlitzGremlin doesn’t support yet, so they can’t use a token. What works today: Claude in Chrome and ChatGPT’s browser extension can gather your league’s pages for you. Your league’s Rosters tab has a prompt for that, and you paste the answer back in one go.

Keeping it safe

• A token works like a password for your leagues. Keep it in your agent’s settings and don’t share it.
• Revoke a token any time in Settings. Signing out everywhere revokes every token too.
• BlitzGremlin stores a fingerprint of each token, not the token itself.

Questions or a client that won’t connect? Email [email protected].