About Flaim Fantasy
Flaim Fantasy connects ESPN, Yahoo, and Sleeper league data to ChatGPT, Claude, and other AI clients. It is for fantasy players seeking analysis grounded in their actual teams and leagues, and it only reads data—it cannot change lineups, trades, or league settings.
Key features
- 01Read ESPN, Yahoo, and Sleeper leagues
- 02Analyze starts, trades, waivers, and matchups
- 03Provide Agent skills for fantasy analysis
- 04Support remote MCP connections with sign-in
- 05Read league data without making changes
Use cases
- 01Compare player start choices for the week
- 02Assess whether a trade is fair
- 03Find players on the waiver wire
- 04Summarize team or league activity
MCP support
Flaim Fantasy provides a remote MCP server for compatible clients to read connected league data. Users sign in through a browser; the server does not modify league content.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://api.flaim.app/mcpclaude mcp add --transport http app-flaim https://api.flaim.app/mcp{"mcpServers":{"app-flaim":{"type":"http","url":"https://api.flaim.app/mcp"}}}Open in Cursor{"servers":{"app-flaim":{"type":"http","url":"https://api.flaim.app/mcp"}}}Open in VS Code{"mcpServers":{"app-flaim":{"type":"http","url":"https://api.flaim.app/mcp"}}}{"mcpServers":{"app-flaim":{"serverUrl":"https://api.flaim.app/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
11This tool takes no parameters.
Details
From the project READMEFlaim Fantasy
Flaim Fantasy connects your ESPN, Yahoo and Sleeper fantasy leagues to ChatGPT and Claude, so you can ask about your actual team. "Who should I start this week?" "Is this trade fair?" "What's on the waiver wire?" The AI answers with your real league in front of it.
Flaim reads your leagues but never changes them. It can't set lineups, add or drop players, make trades or change settings. It's free, and it isn't affiliated with ESPN, Yahoo or Sleeper.
This application uses fantasy data provided by Yahoo Fantasy.
Get started
- Connect your leagues at flaim.app. ESPN connects through the Flaim Chrome extension, Yahoo through Yahoo sign-in, and Sleeper by username.
- Open Flaim Fantasy in ChatGPT or Claude and ask about your team.
That's it.
See it in action
| ChatGPT Ask about the team you actually manage | Claude See what is happening across your league | Perplexity Bring your league into your research |
 |  |  |
Need help?
To connect or manage leagues, go to flaim.app/leagues. For anything else, email [email protected]. Please keep account details out of public issues.
Help make Flaim smarter
How well Flaim works comes down to how its skills and tool descriptions are written, and small wording changes can make a real difference. If you've watched the AI misread something or give advice you'd change, we'd love to hear about it.
- Suggest a wording change. Open an issue with the Tool or skill wording suggestion form. Tell us what the AI got wrong and quote the text you'd change.
- Share a skill of your own. Built something that works well with Flaim, like a weekly league recap or a trade deadline checklist? Add it under
community/. The weekly league recap is a working example to start from. Have an idea but not a skill yet? Use the Skill idea form.
Pull requests to the official skills are welcome too. These files are mirrored from Flaim's main codebase, so instead of merging here we'll bring your change in with co-author credit, and it syncs back automatically. See CONTRIBUTING.md for details.
For tinkerers
What's in this repo
.agents/skills/: the official Flaim skills. They're the analyst playbook an AI follows for start/sit calls, waivers, trades, keepers, matchups and more.tools/: a daily snapshot of the live tool descriptions (tools.json) and server instructions (instructions.md), taken straight from the server. Suggest changes to these with the issue form rather than a pull request, since they're rewritten every day.community/: skills shared by other Flaim users..claude-plugin/,.codex-plugin/,.mcp.jsonandserver.json: plugin packaging and MCP server details for Claude Code, Codex and other developer tools.
The official files are copied here from Flaim's main codebase whenever they change, so this repo matches Flaim's main branch.
Use Flaim in developer tools
Flaim is a standard remote MCP server, so it works in any tool that supports remote MCP servers with sign-in, such as Claude Code, Codex and Cursor. The server URL is:
https://api.flaim.app/mcp
The first time you use it, you'll sign in with your Flaim account in the browser. You'll need at least one league connected at flaim.app.
| Tool | Setup |
|---|---|
| Claude Code | claude mcp add --transport http flaim https://api.flaim.app/mcp, then run /mcp to sign in |
| Codex | codex mcp add flaim --url https://api.flaim.app/mcp (run codex mcp login flaim if it doesn't prompt you to sign in) |
| Cursor | Add "flaim": { "url": "https://api.flaim.app/mcp" } under mcpServers in ~/.cursor/mcp.json |
Claude Code users can also install the plugin, which adds the skills along with the server:
claude plugin marketplace add jdguggs10/flaim-fantasy
claude plugin install flaim-fantasy@flaim
Use the skills
Tools that support Agent Skills look for them in your project's .agents/skills/ folder, or in ~/.agents/skills/ for every project:
git clone https://github.com/jdguggs10/flaim-fantasy.git
cp -r flaim-fantasy/.agents/skills/flaim-fantasy ~/.agents/skills/flaim-fantasy
License
MIT. See LICENSE.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.