Rafflebase in your AI assistant
Pick winners and verify draws from ChatGPT, Claude or Gemini. Free, read-only, and no account or sign-in needed.
https://rafflebase.com/mcp
What it can do
Pick winners
pick-winners
Picks one or more distinct winners from a list of names. Duplicates count once. The names are not stored.
Try: “Pick 3 winners from: Ana, Ben, Cleo, Dev, Eli”
Verify a raffle draw
verify-draw
Checks a completed public Rafflebase draw: the pre-committed seed, the derived draw seed and the replayed winners.
Try: “Was this raffle drawn fairly? rafflebase.com/r/abcd1234”
Start a Rafflebase raffle
start-raffle
Explains how to run a raffle with a shareable signup page and a draw anyone can verify, with current pricing.
Try: “How do I run a giveaway my followers can verify?”
Every tool is read-only. The connector never creates, changes or deletes anything, and only sees public raffle data.
Set it up
Add the connector URL as a custom connector. No authentication is needed.
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Claude
Open Settings, then Connectors, and choose Add custom connector. Name it Rafflebase and paste the URL. Leave the OAuth fields empty.
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ChatGPT
Open Settings, then Apps. Under Advanced settings turn on Developer mode, then create an app named Rafflebase with the URL and no authentication.
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Gemini
Open Settings, then Connected Apps, and add a custom MCP server with the URL.
Privacy and support
Names sent for a pick are not stored. Requests are rate limited to 60 a minute. See what the connector handles in our privacy policy.
Questions or problems? Email [email protected].