In the field guide

negativeev

negativeev.com

NegativeEV is a bet checker that evaluates sports bets by simulating thousands of games to determine if the price is good, bad, or fair. It supports MLB, WNBA, PGA, and ATP sports with various bet types including moneylines, spreads, totals, and player props.

The product, beyond the pitch

Editorially reviewed · Sources checked Sep 16, 2026

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A good fit for

Sports bettors who want to assess the value of their bets using simulation-based analysis.
AI agents that want to integrate bet checking via a stateless HTTP endpoint without installing packages or obtaining keys.

Know the limitations

Does not provide betting picks or recommendations; it only grades bets that are submitted.
Simulations do not account for events occurring after the slate is simulated, such as lineup changes or late scratches until the slate re-simulates.

What you can do

Checking the expected value of sports bets before placing them.
Evaluating parlays by grading each leg and pricing the ticket as a whole.

Features

Grades every leg of a bet against thousands of simulated games.
Provides a written explanation of why a price is good or bad, not just a numeric score.
Supports bet input by typing or uploading a screenshot of a bet slip.

Integrations

Provides a machine-readable interface for AI agents via a stateless HTTP endpoint and MCP server.

Platforms & data export

Accessible via web interface and API endpoints supporting markdown and MCP server calls.

negativeev pricing

No plans recorded yet.

THE COST FOR YOUR TEAM

Go beyond the starting price.

Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.

PeopleBillingCurrencyPrices are shown as published. No exchange rates are applied.Monthly usage per toolApplies to each tool’s own unit. Leave at 0 for subscription cost only.

Known monthly subtotal

$0.00/month

1 of 1 tools could not be priced with these inputs, so this is not the full cost.

Plan costs based on your requirements
Tool / plan	Monthly	Per year	What this assumes
negativeev	No pricing recorded yet. Check the official site, or ask the owner to add it.

A practical workflow

Submit a bet by typing it or uploading a screenshot of a bet slip, which is transcribed and discarded.
Each leg of the bet is matched to a game on today's slate and graded against simulated outcomes from thousands of play-by-play simulations.
The simulated win rate is compared to the probability implied by the price, and a written read explains the gap.

Based on the sources below. Editorial review does not imply hands-on product testing.

Alternatives to explore

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Candidates based on category and primary feature. Check feature and pricing differences before switching.

Oracleai

Reviewedprice clarity

Oracle Odds AI provides AI-based sports predictions for football, basketball, baseball, and more, publishing every pick with wins and losses for transparency. It offers a public record of prediction accuracy and tools to analyze matches, player props, and betting slips with confidence scores and explanations.

Sports & outdoors

negativeev vs Oracleai

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What changed

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