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VotePredictor MCP server

Which MCP servers are VotePredictor's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-25

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Whose server it is
  • Registry namecom.votepredictor/electionsverified in the MCP registry

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

When we asked itchecked 2026-10-25
  • Stateanswerschecked 2026-10-25
  • Tools4
  • Server calls itselfvotepredictor
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 213 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: Compare past forecast accuracy against other election forecasters; Follow how control odds for each chamber shifted over time.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "Compare past forecast accuracy against other election forecasters", the likely first call is forecaster_accuracy.
  • For "Follow how control odds for each chamber shifted over time", the likely first call is chamber_outlook.

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 2026-10-25
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer250 ms
  • Space in an agent's context≈ 664 tokensthe definitions of all its tools (4), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results4 of 4 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • not sure · Check win probabilities for 2026 Senate, House and governor races
  • can do · Compare past forecast accuracy against other election forecasters
  • can do · Follow how control odds for each chamber shifted over time

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 (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). 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 offers4 tools · read 2026-10-25
  • forecast_race

    Current VotePredictor forecast for one 2026 US election: win probability, predicted margin, whether it comes from polls or fundamentals, how far it has moved this cycle, and the candidates. Accepts a state name or code ('Ohio', 'OH') or a…

  • chamber_outlook

    Who is favoured to control the Senate or House after 2026: control probability, expected seats with an 80% range, how far it has moved since January, and the races that have moved most.

  • forecaster_accuracy

    How accurate each election forecaster, model, prediction market and pollster has been on resolved races, adjusted for how hard each race was. Use this to answer 'whose election forecast should I trust'. Difficulty adjustment matters: on…

  • member_profile

    A member of Congress by name or bioguide id: party, state, ideology score, reported net worth from financial disclosures, and the 2026 race for their seat.

How to connect

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

{
  "mcpServers": {
    "elections": {
      "type": "http",
      "url": "https://votepredictor.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http votepredictor https://votepredictor.com/api/mcp

Add to CursorAdd to VS Code

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

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.