Fill My Bracket, inside your AI assistant

A caddie for your bracket: the data to choose with.

Four read-only tools over real, dated college basketball data, the same data published on fillmybracket.com. Every answer carries its as-of date.

The four tools

Current rankings - the Preseason AP Top 25 (released October 19, 2026) with first-place votes, the other teams receiving votes, and the Bart Torvik model's ranks, as of Sunday, November 1, 2026. Ask for the table or for one team.
The Cinderella radar - the unranked teams one model rates far above their poll votes, the watch list, and the ranked teams flagged as vulnerable favorites, each with its counted seed-line record.
Backtested winning recipes - for each tournament from 2016 to 2025, the site's own bracket engine was run over that year's real field across every combination of its five answers, and each bracket was scored against what actually happened (standard pool scoring). Ask what would have won in 2024, or how your own recipe (chalk or chaos, your champion pick) would have scored. Counted history, not a prediction.
Counted upset history - how often a seed line wins its first-round game, counted game by game from the men's tournament, 1985-2025, and stated as wins in games. Counted history only, never odds.

All four are read-only. They submit nothing to any pool, take no payment, and give no odds or betting advice. That is by design.

Try these prompts

"What are the current college basketball rankings?"

"Where does the model rank Duke, and where do the voters have them?"

"Which teams are on the Cinderella radar this year?"

"How often do 12 seeds beat 5 seeds?"

"How many first-round upsets happen in a typical year?"

"What bracket would have won in 2024?"

"How would maximum chaos with a UConn pick have scored in 2023?"

What about filling a bracket?

The 2027 tournament field does not exist yet. It is set on Selection Sunday, March 14, 2027, and the bracket builder (five questions, one full 63-game bracket, the site's own engine) arrives with the real field that day. Until then these tools serve the current rankings, the radar, and counted history. No 2027 team, seed, or matchup is invented in the meantime, and no result here pretends otherwise.

How to add it

Direct connect: point any MCP client at https://mcp.fillmybracket.com/mcp. No sign-in, no key.
Claude and ChatGPT: directory submission is in progress (November 2026).

The data, honestly

Free. No ads. No accounts.
Rankings: the Associated Press preseason poll, released October 19, 2026, cross-checked against four published AP tables; model ranks are Bart Torvik T-Rank preseason baselines, read November 1, 2026. The full sourcing note is on the site's rankings page.
Upset history: the men's tournament counted game by game, 1985-2025 (40 tournaments, 2,520 games), from public results. History describes the past; it is not a prediction.
Usage is counted as anonymous per-day tool totals (integers only). No arguments, names, or text are stored. See the privacy policy.

Help

Questions or ideas: hello@fillmybracket.com

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