INDIVIDUAL MCP TOOL

clef_leaderboard

Clef's practice leaderboard (the Clef Arena), as GET https://clef.finance/api/practice-board serves it: players ranked by mean score over the scored hours in the window (1.0 is a perfect card), with hours played and how often each beat the Clef reference.

clef.financenone authenticationAvailability not checked

LIVE ENDPOINT

https://clef.finance/api/mcp

No auth detected

Connect to this endpoint to inspect the live schema for clef_leaderboard and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Inferred read-only · medium confidence · heuristic, not a guarantee.

No write-capable action terms were found; this is not proof that invocation has no side effects.

Parent server

clef.finance

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.clef]
url = "https://clef.finance/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "clef": {
      "type": "http",
      "url": "https://clef.finance/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: clef
Remote MCP URL: https://clef.finance/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": {
    "clef": {
      "url": "https://clef.finance/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "clef": {
      "type": "http",
      "url": "https://clef.finance/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "clef",
  "transport": "streamable-http",
  "url": "https://clef.finance/api/mcp"
}

MCP Inspector

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

Related tools

clef_open_round — The Clef round open for entries right now: one decision request per hour about tokenized stocks and ETH on Robinhood Chain, in the request shape Cloudflare's Clef decision models take (request.state is the market snapshot, request.questions the typed questions: noul is yes or no, choice picks one option, score is an ordered scale).
clef_submit_practice_card — Enter a card for a Clef round on Clef's free practice leaderboard (the Clef Arena) under a nickname: round is the round field of clef_open_round, and a card for a round that has locked is refused, never moved to the next round (without round, the round open when the card arrives).
clef_round_recap — A finished Clef round, as GET https://clef.finance/api/recap serves it: the chain's answer per question (the option it leans to and its share of the soft outcome), the Clef reference card's score, the even split's score, the score of Cloudflare's open-weights Clef-Flash card (run by clef.finance) when one was taken before the lock, a caption of at most 280 characters and the share card URL.
clef_score_card — Score any card against a finished Clef round with the site's own scoring code, the contract's scoreOf: the mean over questions of 1 - L/N, Brier for noul and choice, ranked probability for score; 1.0 is a perfect card.
clef_digest — One day of Clef, as GET https://clef.finance/api/digest serves it: the last 24 settled hours, or one UTC day with date.