NegativeEV bet checker

com.negativeev/bet-checkerVersion 1.4.5

Grade any MLB, WNBA, PGA or ATP bet against thousands of play-by-play sims. No key, no signup.

Status

Responds389 msNov 14, 2026, 14:07 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:07 UTC
Latency: 389 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://negativeev.com/mcpResponds389 msNov 14, 2026, 14:07 UTC

No sign-in

Claude Code

claude mcp add --transport http bet-checker https://negativeev.com/mcp

Claude Desktop and claude.ai

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2
3

Settings > Connectors > Add custom connector
Name: bet-checker
Remote MCP server URL: https://negativeev.com/mcp

Cursor

{
  "mcpServers": {
    "bet-checker": {
      "url": "https://negativeev.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"bet-checker","type":"http","url":"https://negativeev.com/mcp"}'

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Tools

3 tools

Tools of NegativeEV bet checker
	Description		Read-only	Idempotent	Open world
`check_bet`Check a specific sports bet against thousands of play-by-play game simulations: each leg's simulated probability, the sportsbook's implied probability, and the edge. Send the bet as plain text - teams or players, market, line, odds. A parlay in one string is graded leg by leg and priced as a whole. Call this first; nothing has to be set up, and a missing slate, an unrecognized bet, or an unsupported market comes back as a plain `status` without spending a check. It prices a bet the caller names and never suggests one, so there is nothing to send for "what should I bet tonight". Every result leads with `status` and `check_spent` and says whether re-wording would change anything; when it says no, it means no. Covers MLB, WNBA, PGA, ATP, and NFL. A game that already started still checks, against the simulations from before it began.	Check a specific sports bet against thousands of play-by-play game simulations: each leg's simulated probability, the sportsbook's implied probability, and the edge. Send the bet as plain text - teams or players, market, line, odds. A parlay in one string is graded leg by leg and priced as a whole. Call this first; nothing has to be set up, and a missing slate, an unrecognized bet, or an unsupported market comes back as a plain `status` without spending a check. It prices a bet the caller names and never suggests one, so there is nothing to send for "what should I bet tonight". Every result leads with `status` and `check_spent` and says whether re-wording would change anything; when it says no, it means no. Covers MLB, WNBA, PGA, ATP, and NFL. A game that already started still checks, against the simulations from before it began.	No	Yes	No	Yes
`get_slate`Which of MLB, WNBA, PGA, ATP, and NFL have a checkable slate right now - at least one simulated game that has not started. Pass `sport` for one; omit it for all. Free, spends no check. It is not required before `check_bet`, which reports a missing slate itself at no cost. Call it to answer "what can be checked today", or after a `no_slate` or `ungraded` result, which mean the game is not on the simulated slate rather than that the bet was worded wrong.	Which of MLB, WNBA, PGA, ATP, and NFL have a checkable slate right now - at least one simulated game that has not started. Pass `sport` for one; omit it for all. Free, spends no check. It is not required before `check_bet`, which reports a missing slate itself at no cost. Call it to answer "what can be checked today", or after a `no_slate` or `ungraded` result, which mean the game is not on the simulated slate rather than that the bet was worded wrong.	Not declared	Yes	Not declared	Not declared
`get_usage`How many bet checks the caller has left and when the next one frees up - 100 a day shared per device anonymously, 1000 an hour with a signed-in user's token. Free, spends no check. It grades nothing, so it is not a step before a check: call it when a check comes back refused for quota, or before working through a long list of bets.	How many bet checks the caller has left and when the next one frees up - 100 a day shared per device anonymously, 1000 an hour with a signed-in user's token. Free, spends no check. It grades nothing, so it is not a step before a check: call it when a check comes back refused for quota, or before working through a long list of bets.	Not declared	Yes	Not declared	Not declared

Details

Registry status: Active
Published: Aug 30, 2026
Updated: Aug 30, 2026
Website: https://negativeev.com/⁠ (opens in a new tab)
Repository: https://github.com/jessejohnsohn/negativeev-mcp⁠ (opens in a new tab)
Categories: Uncategorized
GDPR: Not declared

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