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Research tool

Billy

Compare sports prices with money-flow, wallet, analyst and model signals, or query the same game research through a free MCP server.

3.5/ 5Editorial rating0 user reviews
Open official appapp.billybets.ai
Available on
Web, MCP
Pricing
Public research and MCP: Free

Screenshots and interface

Product preview1 / 2

Sports slate with model lines and game-level notes.

What is Billy?

Billy organizes sports research around individual games. It compares prediction-market prices with sportsbook reference lines and explains why each signal fired. The app distinguishes heavy-money imbalance, a line moving with money, public wallet activity, analyst agreement and model-based expected value. Billy also operates a market-making desk; the public app and API expose research rather than the desk’s private positions or order flow.

Who it is for

  • Sports traders comparing several signals on the same game
  • Users who want the reason behind a pick
  • Developers adding read-only game research to an assistant

Features and coverage

Available on
Web, MCP
Markets & venues
Polymarket, Kalshi, Sportsbook reference lines
Research topics
Sports pricing, Signal agreement
  • Game board

    Browse fixtures by league with moneyline, spread and total prices, venue labels and update times.

  • Heavy Money

    Compare the share of money with the share of bets on an outcome.

  • System Play

    Identify a setup where the public is on one side while money and line movement favor the other.

  • Sharp Signal

    Inspect public Polymarket wallet activity from a cohort scored against closing prices.

  • Analyst and trend context

    See agreement among named analysts and source-attributed historical trends.

  • EV comparison

    Compare a modeled true price with the best allowed market price.

  • Alpha read

    The API returns a combined read when at least three signals agree on one pick.

  • MCP game and slate tools

    Query a specific game or the day’s games through a read-only server.

Workflows with Billy

Research one matchup

Filter to the league, open the game and compare the signal reasons with the displayed spread, total or moneyline. Keep the venue and timestamp with the price.

Check agreement

Inspect whether multiple signals refer to the same pick rather than merely the same game.

Connect an assistant

Use the documented MCP endpoint, request a team or game ID and render the returned attribution and market-maker disclosure with the result.

Pricing and total cost

The app and read-only MCP API are free.

Public research and MCP

Free

  • Game and daily slate research
  • 600 API calls/hour/client

Access: The API preview may require a shared key; the guide describes accepted authentication headers.

Getting started

Before you start: The API’s live tool has not launched live fires and currently returns an empty live-signal state.

  1. Open Games and select a league or matchup.
  2. Read each signal’s reason and its exact pick.
  3. Compare the best price and venue attached to that pick.
  4. For an integration, use the API guide and configure the MCP endpoint.
  5. Handle HTTP 429 using Retry-After and retain the required attribution fields.

MCP and API guide

Useful links

What to check

  • The API’s live tool has not launched live fires and currently returns an empty live-signal state.
  • API snapshots refresh roughly every five minutes; they are not an exchange order stream.
  • The API does not expose the desk’s quotes, fills, positions or order flow.
  • API redistribution and resale are restricted by the provider’s integration terms.

A closer look

Ratings & reviews

Write a review
Editorial rating
3.5/ 5
0 user reviews
Polytoolhub editorial

Our take on Billy

Sports price boards and a documented read-only MCP interface offer useful free research access. Delayed snapshots and the unlaunched live-signal endpoint constrain real-time use.

Based on documented features, setup and access terms. How we rate

User reviews 0

The main score switches to user ratings after 5 published reviews.

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Frequently asked questions about Billy

Does Billy execute my trade?

The public app and API provide information; they do not accept bets or hold funds.

What makes an Alpha read?

The documented API requires three or more signals to agree on one pick.

Is the API the same research as the app?

Yes. Both use the same precomputed snapshots.

Does the API include a historical hit-rate record?

No. The guide explicitly excludes records and scorecards from API responses.