Bellwether Mcp

com.bellwethermetricsPublished by bellwethermetrics.comv0.1.0Updated Oct 24, 2026

Live prediction market data from Polymarket and Kalshi with VWAP pricing and reportability.

The publisher's own server: Bellwether

VerifiedSTDIODesktop onlyFinance

Overview

AI-generated overview

Local MCP server that gives an assistant live prediction market data from Polymarket and Kalshi, with VWAP pricing and reportability.

What you can do
  • Provides live prediction market data from Polymarket and Kalshi.
  • Supplies VWAP (volume-weighted average price) pricing for markets.
  • Supports reportability of the retrieved market data.
  • No individual tools are listed, so the exact operations are not documented.
When to use it
Use when you want an assistant to look at live prediction market prices and volume-weighted pricing from Polymarket and Kalshi, for example to compare odds or support a report.
Requirements
Runs as a local process over stdio, installed from the npm package bellwether-mcp (Node.js runtime). An optional API key can be supplied through the BELLWETHER_API_KEY environment variable for authenticated access. Desktop client only; no web execution.
Before you install
The BELLWETHER_API_KEY is a secret; keep it out of shared configuration and logs. Market data is fetched from third-party prediction market sources, so queries and usage may be visible to that provider. No write, payment or trading actions are described.

Installation

In SourceWeft

  1. Open Bellwether Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

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