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Analytics

beliefsystems.xyz

Provides analytics on prediction-market indices and volatility series, including current values, history, and disclosure details.

1 endpoint8 known toolsFirst detected September 4, 2026Last detected September 4, 2026

ENDPOINT 1

https://www.beliefsystems.xyz/api/mcp

No auth detected

MCP server metadata

Name
belief-systems
Version
2.0.0
Capabilities
tools.listChanged
Server instructions

Belief Systems publishes rules-based indices of how prediction markets price events, and Belief Volatility measures of how much those prices are expected to move. Every tool requires a Belief Systems API key: create one free at https://beliefsystems.xyz/data and send it as an Authorization: Bearer belief_live_… header from this server's config. Calls are metered per key at 60 requests per minute and 2,000 per day. Attribute every quoted value as "Source: Belief Systems (beliefsystems.xyz)". Redistribution, bulk or scheduled extraction, and commercial or product use require a license – see beliefsystems.xyz/terms (Section 7) and beliefsystems.xyz/license. Call get_citation_guidance before quoting data externally.

Known tools 8

list_indices

List all published Belief indices - rules-based benchmarks of how prediction markets price events (elections, conflict risk, monetary policy, and more).

Inferred read-only
get_index

Get details for a single Belief index by ticker: name, current level, inception date, publication status, data quality, and links to the index page, a citable chart PNG, and CSV downloads.

Inferred read-only
get_index_history

Get chart-grade level history for a Belief index over a horizon (24h, 7d, 30d, or all = since inception).

Inferred read-only
list_volatility_series

List published Belief Volatility series - standardized estimates of how much prediction-market probabilities are expected to move over a stated horizon.

Inferred read-only
get_volatility_index

Get the current value of a Belief Volatility series by ticker, with every disclosure that must travel with it: the release share behind each tenor, the measure/tier label, the sensitivity band, the frozen-prices counterfactual, and the per-leg breakdown.

Inferred read-only
get_volatility_history

Chart-grade history for a Belief Volatility series: the headline value over time with its release shares and measure labels, clamped to the trailing free window.

Inferred read-only
get_data_downloads

Describe the free point-in-time snapshot dataset at beliefsystems.xyz/data: per-series CSVs of index levels, compositions, and reconstitution history.

Inferred read-only
get_citation_guidance

Attribution, licensing, and framing guidance for quoting Belief index data in articles, research, or model outputs.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.belief-systems]
url = "https://www.beliefsystems.xyz/api/mcp"
enabled = true
Claude Code

.mcp.json

{
  "mcpServers": {
    "belief-systems": {
      "type": "http",
      "url": "https://www.beliefsystems.xyz/api/mcp"
    }
  }
}
Claude Desktop

Settings → Connectors → Add custom connector

Name: belief-systems
Remote MCP URL: https://www.beliefsystems.xyz/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "belief-systems": {
      "url": "https://www.beliefsystems.xyz/api/mcp"
    }
  }
}
Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code 
{
  "servers": {
    "belief-systems": {
      "type": "http",
      "url": "https://www.beliefsystems.xyz/api/mcp"
    }
  }
}
Generic MCP

Client-specific MCP configuration

{
  "name": "belief-systems",
  "transport": "streamable-http",
  "url": "https://www.beliefsystems.xyz/api/mcp"
}
MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.