StockDrifts

io.stockdriftsv1.29.0Updated Oct 5, 2026

Rated 13F funds with average buy prices, company KPIs, Japan investor ratings, Korea insider buys.

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Overview

AI-generated overview

Gives an assistant read-only access to StockDrifts ownership data: rated US 13F funds, company KPIs, Japanese large-shareholding filings and Korean insider buys

What it does
Exposes 32 read-only tools over a hosted Streamable HTTP endpoint. For US 13F data it searches and screens investors, returns holdings, quarter-over-quarter changes, sector exposure and catalyst records, lists ticker holders and screens holdings by period, ticker, value and rating. It also returns normalized company KPI snapshots, Japanese EDINET large-shareholding filings with investor leaderboards and convergence screens, Korean DART insider trades, pre-disclosed plans and executions, and a cross-market insider screen.
When to use it
Use it when an assistant needs ownership and insider-filing research: which rated 13F funds hold a ticker and at what average buy price, what a fund added or cut last quarter, Korean insider buys or unexecuted pre-disclosed plans, Japanese stocks with several simultaneous 5% filings, or a ticker's KPI history. It suits research and screening rather than trading or account actions.
Requirements
A remote Streamable HTTP endpoint at nothing to build or run locally. A StockDrifts API key is required, sent as the Authorization bearer header, created in the account settings and tied to the Ultra plan. Optional one-command installer uses npx and stores the key in a local config file. Rate limits are enforced per key in one-minute windows.
Before you install
Requires a StockDrifts API key sent as the Authorization bearer header; the README warns not to put the key in the URL, where it can leak into logs and shell history, and to keep key-bearing files out of version control. The token is forwarded to api2.stockdrifts.io for authentication and rate limiting. All tools are read-only and nothing writes, trades or changes account state, but the data is for research and is not investment advice. Access is part of the paid Ultra plan.

Installation

In SourceWeft

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

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "mcp": {
      "type": "http",
      "url": "https://mcp.stockdrifts.io/mcp/"
    }
  }
}

README

StockDrifts MCP Server

Ownership data for AI agents: rated US 13F funds and their average buy prices, normalized company KPIs, Japanese large-shareholder filings with investor ratings, and Korean insider buys.

  • Hosted endpoint: https://mcp.stockdrifts.io/mcp/ (Streamable HTTP)
  • Tools: 32, all read-only
  • Auth: API key sent as a bearer header
  • Docs: https://www.stockdrifts.io/api-docs
  • Registry name: io.stockdrifts/mcp

This repository holds the connection configs, the registry manifest and an agent skill. The server itself is hosted by StockDrifts; there is nothing to build or run.

What is different about the data

DatasetWhat you getSource
Rated 13F funds13F filers with star ratings, holdings by quarter, quarter-over-quarter changes, sector exposure, and each fund's average buy price per positionSEC 13F filings
Company KPIsCompany-specific operating metrics per ticker, such as segment revenue, customer counts, net revenue retention and backlog, as quarterly and yearly seriesCompany filings
Japanese investorsLarge-shareholding (5%-rule) reports per stock and per investor, an investor leaderboard with star ratings, and stocks where several investors are filing at onceEDINET
Korean insidersExecutive and major-shareholder trades, top insider buys and sells, an insider leaderboard, and pre-disclosed trading plans matched to their executionsDART

Japanese 5%-rule reports are filings by large shareholders. They are not the same thing as US director and officer trade reports.

Connect

You need an API key. Create one at https://app.stockdrifts.io/settings/api-keys (API and MCP access is part of the Ultra plan, see pricing).

Replace sd_live_... in the snippets below with your key, and keep any file that contains it out of version control.

Claude Code

bash
claude mcp add --transport http stockdrifts https://mcp.stockdrifts.io/mcp/ \  --header "Authorization: Bearer sd_live_..."

Or install this repository as a plugin (server plus skill). Claude Code asks for the key once and keeps it in your system's secure credential store:

/plugin marketplace add Stockdrifts/stockdrifts-mcp/plugin install stockdrifts@stockdrifts

Claude Desktop, Cursor and other JSON-config clients

json
{  "mcpServers": {    "stockdrifts": {      "type": "http",      "url": "https://mcp.stockdrifts.io/mcp/",      "headers": { "Authorization": "Bearer sd_live_..." }    }  }}

Codex CLI

In ~/.codex/config.toml (Codex spells the field http_headers):

toml
[mcp_servers.stockdrifts]url = "https://mcp.stockdrifts.io/mcp/"http_headers = { Authorization = "Bearer sd_live_..." }

One-command installer

The @stockdrifts/cli package registers a local stdio server with Claude Code, Claude Desktop, Cursor or Codex and stores the key in ~/.stockdrifts/config.json (mode 600), so no secret is written into the agent's own config:

bash
npx -y @stockdrifts/cli@latest install all --key sd_live_...npx -y @stockdrifts/cli@latest doctor

Example prompts

  • "Which 5-star 13F funds hold NVDA in their top positions, and what is each fund's average buy price?"
  • "What did this fund add and cut last quarter?"
  • "Show Korean open-market insider buys above ₩1bn in the last 30 days."
  • "Which pre-disclosed Korean insider buy plans have not been executed yet?"
  • "Which Japanese stocks have several investors filing 5% reports at the same time?"
  • "Give me the KPI history for this ticker."

Tools

US 13F funds

ToolWhat it returns
search_investors_usFuzzy-search investors by name; resolves to CIKs ordered by AUM
screen_investor_sector_exposure_usScreen investors by sector concentration (e.g. top biotech specialists)
screen_investor_catalyst_record_usScreen funds by their track record on binary events (any sector)
get_investor_holdings_usLatest 13F holdings for one investor (or for a specific period)
list_investor_periods_usAll 13F periods on file for one investor
get_investor_changes_usQoQ position diff for one investor between two periods
get_investor_sector_exposure_usSector-exposure history for one investor (newest quarter first)
get_investor_catalyst_record_usOne fund's binary-event track record per sector, with best/worst calls
list_ticker_holders_usInvestors with ticker in their top-50 positions, sorted by position size
screen_holdings_usScreen 13F holdings by period, ticker, value, and rating; returns each matched fund with only the position(s) that matched

Company KPIs

ToolWhat it returns
get_kpiLatest normalized KPI snapshot for one ticker

Japan (EDINET large-shareholding filings)

ToolWhat it returns
list_insider_filings_jpShareholding-report filings for one JP ticker
get_insider_summary_jpPre-aggregated shareholding summary for one JP ticker
list_recent_filings_jpRecent JP filings across all tickers
list_top_buys_jpTop JP tickers by aggregated buying over a window
list_top_sells_jpTop JP tickers by aggregated selling over a window
list_investor_filings_jpAll JP filings made by one investor (EDINET code)
list_opportunities_jpRecent JP BUY/INITIAL filings whose price hasn't moved much yet
list_leaderboard_jpTop JP investors by star rating + avg return
list_convergence_jpJP tickers with multiple distinct investors filing on the same name
search_companies_jpSearch JP companies by stock_code, Japanese name, or English name

Korea (DART insider filings)

ToolWhat it returns
list_insider_trades_krInsider trades for one KR ticker
get_insider_summary_krPre-aggregated insider summary for one KR ticker
list_recent_trades_krRecent KR insider trades across all tickers
list_top_buys_krTop KR tickers by aggregated insider buying over a window
list_top_sells_krTop KR tickers by aggregated insider selling over a window
list_opportunities_krRecent KR open-market BUYs whose price hasn't moved much yet
list_plans_krKR pre-disclosure (D005) plans: announced but not yet executed trades
get_plan_executions_krCross-reference one D005 plan against its actual executions
search_companies_krSearch KR companies by stock_code, Korean name, or English name
list_leaderboard_krTop KR insiders by historical avg return on their buys

Cross-market screen

ToolWhat it returns
screen_insidersScreen insider activity by country, date, value, role, and ticker

Security

  • Send the key only in the Authorization header. Do not put it in the URL, where it can end up in logs and shell history.
  • The MCP server stores no keys. Your bearer token is forwarded to api2.stockdrifts.io, where authentication, rate limits and usage are enforced.
  • Every tool is read-only. Nothing in this server writes, trades or changes account state.
  • Without a key the server lists its tools and returns an unauthorized error for every call. No data is served.
  • Rotate or revoke keys at https://app.stockdrifts.io/settings/api-keys.
  • Report a security issue to [email protected].

Rate limits and errors

Limits are enforced per key in one-minute windows, and responses carry X-RateLimit-* headers. Errors use one shape: {"error": {"code", "message", "hint"}}. See the API reference.

Data notes

  • Value fields carry their currency in the name (value_usd, value_krw, value_jpy). Nothing is converted silently.
  • 13F periods are quarter-end dates such as 2026-06-30. Leave the period out to get the latest quarter on file.
  • 13F filings are quarterly and published up to 45 days after quarter end.
  • The data is for research. It is not investment advice.

License

The files in this repository are MIT licensed. Access to the StockDrifts API and the data it returns is a separate paid service under the StockDrifts Terms and Privacy Policy.

Source: README.md at commit b904f11

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.29.0LatestOct 5, 2026