NegativeEV bet checker MCP server
Grade any MLB, WNBA, PGA or ATP bet against thousands of play-by-play sims. No key, no signup.
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If you have run it, two minutes of your experience saves the next person an afternoon.
NegativeEV bet checker tools (3)
write = sends, deletes, buys or postscheck_betFreeCheck 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, and ATP. A game that already started still checks, against the simulations from before it began.
get_slateFreeWhich of MLB, WNBA, PGA, and ATP 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.
get_usageFreeHow 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.
Public scan report
scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 1278ms20/20
- Tool poisoning3 tool descriptions checked15/15
- Auth qualityopen endpoint, read-only tools10/15
- Maintenancelast push 21 days ago15/15
- Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10
Install directly
claude mcp add --transport http bet-checker https://negativeev.com/mcp
NegativeEV bet checker: common questions
- Is NegativeEV bet checker MCP server safe?
- Yes, by our scan: it is graded A (89/100). Read the NegativeEV bet checker safety report
- How do I install NegativeEV bet checker?
- It runs remotely at negativeev.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does NegativeEV bet checker need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is NegativeEV bet checker maintained?
- The last commit was 21 days ago (2026-08-30). The latest release is v1.4.5.
- Is NegativeEV bet checker up?
- 100% of our last 6 checks got an answer. We check remote servers about four times a day.