Tools/Copy trading

copy.leaderboard

1 crread-only

Rank the institutional managers (13F funds) worth copying. Each row is a followable actor — name, manager, book size (AUM), holdings count, latest reported quarter, follower count, and the slug (for copy.target.get) + CIK (to follow via watchlist / pull via fund.holdings). The agent-native 'who should I copy?' entry point. Sort by book size, recent activity, or follower count. Public-domain SEC EDGAR 13F data.

Parameters#

ParameterTypeDescription
sortoptstringaum = biggest book (default), active = most recently filed, followers = most followedone of: aum, active, followers
limitoptnumberMax actors to return (1-100, default 25)

Example call#

bash
curl -X POST https://arkolith.com/api/mcp \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "copy.leaderboard",
    "arguments": {
      "sort": "aum",
      "limit": 10
    }
  }
}'

REST mirror: GET /copy/leaderboard, metered identically.

Example response#

json
{
  "sort": "aum",
  "targets": [
    {
      "rank": 1,
      "slug": "berkshire-hathaway-inc",
      "name": "BERKSHIRE HATHAWAY INC",
      "manager": "Warren Buffett",
      "cik": "1067983",
      "aum_usd": 258000000000,
      "holdings_count": 42,
      "followers": 12,
      "follow": { "kind": "fund", "ref": "1067983" }
    }
  ],
  "disclaimer": "Ranking of public disclosures: data, not investment advice."
}

Related tools#

copy.target.get
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