Silicon Floor

Who owns AI stocks, who's buying, who's selling — every answer sourced. The research terminal for your AI agent: who owns AI and semiconductor stocks, what insiders and funds buy and sell, financials as filed, short interest, dividends and the sector's market cap, with every SEC figure linked to its filing. Free, no account, no API key.

siliconfloor.com · Documentation · MCP server: https://siliconfloor.com/mcp

This repository holds what you need to plug Silicon Floor into an assistant: the connector settings, a Claude Code plugin, a GitHub Copilot CLI plugin, a Gemini CLI extension and a research skill. The server itself runs at https://siliconfloor.com/mcp; its code is not in this repository.

What you can ask

• Who's buying, who's selling? Funds, insiders and big shareholders, from their own 13F, 13D/G and Form 4 filings.

• What did insiders sell this quarter? CEO, founder and director sales and purchases across the sector, quarter by quarter: the biggest sellers and buyers, what they still hold, and the filing behind each.

• What did hedge funds buy last quarter? Each quarter's 13F filings, read in full: where the money went by sector, the most bought and sold stocks, the biggest moves of named funds.

• What does the CEO really own? Shares, restricted stock and options, broken down filing by filing.

• Whose AI picks did best? Funds ranked on what the AI stocks in their 13F returned, quarter after quarter, against SMH. Then follow one: every fund and big shareholder has an RSS feed of their filings.

• How big is the AI trade? The market cap of the whole sector, split between chips, cloud, power and the rest, and each company's weight in it, day by day.

• Which ones pay a dividend? Yield, growth, and how well each payout is covered.

• Is it really growing? Revenue, margins and cash flow exactly as filed: 12 quarters or 6 years.

• Is it cheap or expensive? Companies side by side, or the whole sector screened on growth, margins and valuation.

• Are short sellers piling in? FINRA short interest every two weeks, and the short float on a float counted from SEC filings, every holder taken out named.

• Who buys from whom, who lends to whom? The customers companies name, the contracts their filings disclose (value, term, megawatts), who acquired whom, and the banks behind each credit facility, with when it was signed and when it ends, as filed.

• What is a private AI company worth before its IPO? Anthropic's S-1 read in full, and served like a listed company: every funding round per common share of today and the value it implies, its financial statements (quarters, half years and audited years: revenue, cash, cash flow), who owns it (its principal stockholders, officers and directors, and what Amazon and Google hold), what it has committed to spend with each cloud and chip supplier, and who finances it — its credit facility and the notes Google, Amazon and Broadcom have agreed to buy.

• Where does the revenue come from? By segment, region and product, the customers a company depends on, and what it guided for against what it then reported.

• What does it owe? Debt as the balance sheet presents it, instrument by instrument with rates and maturities, and every note, loan and share sale filed since.

• What's the news? The latest AI headlines, tagged by company.

• What changed this week? Earnings, insider buys, new 5% stakes, restatements, ranked by what matters.

Every number carries its date and its source, and SEC figures link to the filing itself. Missing data shows up as missing, never guessed.

Related MCP server: Filings Intel MCP

Connect

Claude (web, desktop, mobile): Silicon Floor is in Claude's connector directory. Or add it yourself: Customize → Connectors → + → Add custom connector, name it Silicon Floor, paste https://siliconfloor.com/mcp.

Claude Code, as a plugin (server and research skill):

/plugin marketplace add Baptoshi/silicon-floor
/plugin install silicon-floor@siliconfloor

or the server alone:

claude mcp add --transport http siliconfloor https://siliconfloor.com/mcp

GitHub Copilot CLI, as a plugin (server and research skill):

copilot plugin marketplace add Baptoshi/silicon-floor
copilot plugin install silicon-floor@siliconfloor

Gemini CLI:

gemini extensions install https://github.com/Baptoshi/silicon-floor

The research skill alone, for any agent that supports Agent Skills, via skills.sh. It uses the MCP server, so add the server to the same client too:

npx skills add Baptoshi/silicon-floor

ChatGPT: turn on developer mode in Settings (Security and login), then open Plugins, click +, name it Silicon Floor and enter https://siliconfloor.com/mcp as a public endpoint.

Cursor (~/.cursor/mcp.json):

{
  "mcpServers": {
    "siliconfloor": { "url": "https://siliconfloor.com/mcp" }
  }
}

VS Code (.vscode/mcp.json):

{
  "servers": {
    "siliconfloor": { "type": "http", "url": "https://siliconfloor.com/mcp" }
  }
}

A client that only runs commands, through the bridge on npm — it forwards stdio to the same hosted server, nothing is installed and no key is needed:

{
  "mcpServers": {
    "siliconfloor": { "command": "npx", "args": ["-y", "siliconfloor-mcp"] }
  }
}

Any other MCP client: Streamable HTTP at https://siliconfloor.com/mcp, no authentication. Also listed in the official MCP Registry as com.siliconfloor/silicon-floor.

Tools

Nineteen read-only tools: list_companies, get_company, get_financials, get_figure_history, compare_companies, screen_companies, get_ownership, get_holders, get_relationships, get_fund_flows, get_insider_trading, get_filings, what_changed, get_dividends, get_market_overview, get_market, get_signals, get_price_history, get_news. Their full reference is in skills/silicon-floor-research/references/tools.md.

What's in this repository

Changes

Answers only gain fields. When a field changes name or meaning, it is listed here.

• 1.10.0 (October 28, 2026)

  • get_signals: window adds total, how many signals the log holds for the request whatever the limit, and loggedSince, the first session it holds (the five-year figures are the replayed scorecard).

  • Tool descriptions are shorter (about 9,900 characters for the 19 tools, from 13,500): how to read each answer is in its howToRead or notes, now in get_holders, what_changed and get_market too.

• 1.9.0 (October 28, 2026)

  • get_signals returns the most recent signals first (it kept the oldest of the log); window gives the sessions they span and whether older ones remain.

  • what_changed with a symbol: a 13F row gives the shares it declares of that company and quarterMove, what the manager did of it, instead of its whole portfolio; a since in the future is refused as such.

  • get_relationships names the buyer and the seller (or target) of an acquisition; get_holders says why a manager has no moves (flowsNote) and answers an unknown holder in English.

  • compare_companies says when two entries name one company (merged); get_company and compare_companies say why a margin is empty (nullReasons); get_news says whether a headline names the company (namedInTitle).

  • Revenue by segment follows a member tagged under two spellings (AMD's fiscal years and fourth quarters are back), and a gross profit filed for some periods is completed for the others where the company's own figures prove it.

• 1.8.0 (October 28, 2026)

  • get_company, compare_companies, screen_companies add revenueGrowthTtm: the last four quarters against the four before, steadier than one quarter (or the fiscal year for basis: fiscal year); screen_companies filters on it (minRevenueGrowthTtm) and sorts by it.

  • get_holders says how many positions a holder has (positionsTotal) and when the answer is cut (positionsTruncated); get_financials flags large non-operating items (nonOperating).

  • The map of get_market refuses a date before the sessions it keeps instead of returning the first one; what_changed says when a whole window lies beyond its 90 days.

• 1.7.0 (October 28, 2026)

  • get_company, compare_companies, screen_companies: basis says which period each figure covers — revenue growth and margins are the latest quarter's (growth against the same quarter a year earlier) and revenueTtm the last four quarters, or fiscal year; basisMeaning and each answer's note explain it.

  • An unknown segment or sector is refused with the list of segments; what_changed refuses a blank since or until and says when a window is moved to its 90-day limit (windowClamped); the map of get_market for a day without a session is the latest session before it (requestedDate).

  • Companies resolve from a CUSIP or a US or CA ISIN; a misspelled name gets suggestions, never a guess.

  • get_financials lists the periods its columns skip (missingPeriods); get_holders says in plain words why a manager is not ranked (notRankedReason).

• 1.6.0 (October 27, 2026)

  • get_ownership: asOf is now latestDeclarationAsOf, the date of the most recent declaration on the card; the quarter of the 13F positions is coverage.quarterRead. With moves set to a list, the answer is that list, its coverage and next, without the holders.

  • get_ownership and get_holders: a holder's kind is replaced by type (investment manager, broker-dealer, company or person) and, for a manager, style (active, index, market_maker or wealth).

  • get_holders: move is the direction of a position, as in get_ownership; the change in dollars is valueChangeUsd, in shares sharesChange, and a manager's net flow netFlowUsd.

  • what_changed: until and next.until read a long window page by page.

  • screen_companies: the sideways trend is neutral (flat is still accepted). get_dividends: certainty and status codes are in English. get_price_history: the volume of a session in progress is null, not 0.

The same list, kept current, is on siliconfloor.com/docs/mcp.

Data and terms

Sources: SEC EDGAR (XBRL financial statements, IPO prospectuses, Forms 13F, 13D/G, 3/4/5, N-PORT) and FINRA (short interest and short-sale volume, republished with FINRA's permission). Silicon Floor is a tracking tool, not investment advice. Terms and privacy · contact@siliconfloor.com

The files in this repository are under the MIT license. The data the server returns is covered by the terms.