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Fair Odds Calculator MCP server

Which servers in the official MCP registry are Fair Odds Calculator's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-20

← Back to Fair Odds Calculator

Whose server it is
  • Registry namecom.fairoddscalculator/siteverified in the MCP registry

The registry name sits under fairoddscalculator.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-20
  • Stateanswerschecked 2026-10-20
  • Tools7
  • Server calls itselfFair Odds Calculator (fairoddscalculator.com)
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 686 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • Parameters are untyped or undescribed in 5 of 7 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-10-20
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer1392 ms
  • Space in an agent's context≈ 697 tokensthe definitions of all its tools (7), which an agent carries on every turn
  • Tool definitionsC · 71 of 100
  • Typed results0 of 7 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 5 of 7
  • Not saying whether it only reads or can destroy: 7 of 7

What an agent can do with it

  • not sure · remove the margin from a two-sided market price
  • not sure · compare a posted price against your own probability
  • not sure · multiply two to four parlay legs into one price

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers7 tools · read 2026-10-20
  • dataset_columns

    The columns, which of them are numeric, the row count and the provenance banner of the Fair Odds Calculator dataset. Call this first to learn the schema.

  • dataset_search

    Rows of the Fair Odds Calculator dataset whose cells contain the query (case-insensitive), up to 50.

  • dataset_row

    The rows of the Fair Odds Calculator dataset where a column equals a value exactly (case-insensitive).

  • dataset_compare

    The rows of the Fair Odds Calculator dataset whose column is any of the given values, in the order given — for "X vs Y" questions.

  • dataset_stats

    count, min, max, mean, median and sum of a numeric column of the Fair Odds Calculator dataset (grouping commas and currency are handled; non-numeric rows are excluded and counted).

  • dataset_top

    The highest (or lowest) rows of the Fair Odds Calculator dataset by a numeric column — "which is the most/least X".

  • dataset_provenance

    The source, the date it was computed, the licence and the citation for the Fair Odds Calculator dataset. Read this to attribute a figure correctly.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "site": {
      "type": "http",
      "url": "https://fairoddscalculator.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http fairoddscalculator https://fairoddscalculator.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://fairoddscalculator.com/mcp as a custom connector in the settings.

OpenAPI spec

8 paths, read 2026-10-20. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.