SEC EDGAR MCP Server — Insider Signals, 13F Holdings & Filing Intelligence

SEC EDGAR intelligence for AI agents. Five tools that answer the questions that matter: insider Form 4 trading signals, SC 13D activist risk flags, 10-K/8-K filing velocity, 8-K material event severity (RED/YELLOW/GREEN), and multi-company disclosure comparisons — all returned as structured JSON, direct from SEC EDGAR. No API key required.

Why this exists

Existing SEC data tools give agents paginated filing lists and raw XML. Agents then have to parse, classify, and derive signals themselves — burning context window on bureaucratic extraction instead of analysis.

Toolstem SEC MCP Server pre-computes five high-value signals directly from SEC EDGAR's public submissions API, returning structured, agent-ready JSON. No third-party data providers, no API keys, no per-symbol fees — just SEC EDGAR's authoritative source with a rate-limiter that keeps you off their blocklist.

The five tools

1. get_company_filings_summary

Overview of a company's filing activity: last 20 filings + computed signals.

Example output (abbreviated):

{
  "ticker": "AAPL",
  "cik": "0000320193",
  "company_name": "Apple Inc.",
  "signals": {
    "filing_velocity": "NORMAL",
    "material_event_count_90d": 4,
    "disclosure_volume_trend": "RISING",
    "latest_form_types": ["8-K", "4", "DEF 14A"]
  },
  "meta": { "source": "sec_edgar_direct", "data_delay": "live" }
}

2. get_insider_signal

Probes Form 3/4/4A insider filing activity within a lookback window.

Returns: recent_insider_filings (accession numbers + SEC URLs for Forms 3/4/4A), lookback_days, and counts.

v0.1 note: When at least one Form 3/4/4A filing exists in the lookback window, insider_signal is null ("direction unknown — Form 4 XML parsing ships in v0.2"). When no insider filings exist in the window, insider_signal is "NEUTRAL" ("verified absence of activity"). buy_count and sell_count are 0 in v0.1.

Example output (abbreviated):

{
  "ticker": "MSFT",
  "cik": "0000789019",
  "company_name": "MICROSOFT CORP",
  "lookback_days": 90,
  "insider_signal": null,
  "net_transaction_count": 0,
  "buy_count": 0,
  "sell_count": 0,
  "recent_insider_filings": [
    {
      "accession_number": "0001127602-26-001234",
      "filing_date": "2026-04-15",
      "sec_url": "https://www.sec.gov/Archives/edgar/data/789019/000112760226001234/0001127602-26-001234-index.htm"
    }
  ],
  "meta": { "source": "sec_edgar_direct", "data_delay": "live" }
}

3. get_institutional_signal

Probes for activist investor activity via SC 13D / 13D/A filings.

v0.1 note: institutional_signal and recent_13f_count are null/0. Quarterly 13F XBRL/XML parsing (ACCUMULATING / HOLDING / DISTRIBUTING) ships in v0.2.

Example output (abbreviated):

{
  "ticker": "NVDA",
  "cik": "0001045810",
  "company_name": "NVIDIA CORP",
  "quarters_back": 4,
  "institutional_signal": null,
  "recent_13f_count": 0,
  "activist_risk_flag": false,
  "recent_13d_filings": [],
  "meta": { "source": "sec_edgar_direct", "data_delay": "live" }
}

4. get_material_events_digest ⚡ premium ($0.50)

Severity-ranked digest of all 8-K and 8-K/A filings within a lookback window. Maps each item code to a plain-English label and severity rating.

Returns: events[] (sorted newest-first), redflag_count, category_counts.

Example output (abbreviated):

{
  "ticker": "TSLA",
  "cik": "0001318605",
  "company_name": "Tesla, Inc.",
  "lookback_days": 180,
  "redflag_count": 1,
  "category_counts": { "RED": 1, "YELLOW": 3, "GREEN": 7 },
  "events": [
    {
      "accession_number": "0001628280-26-005678",
      "filing_date": "2026-04-10",
      "form": "8-K",
      "items": [
        { "code": "4.02", "label": "Non-Reliance on Previously Issued Financial Statements", "category": "financial", "severity": "RED" }
      ],
      "sec_url": "https://www.sec.gov/Archives/edgar/data/1318605/000162828026005678/0001628280-26-005678-index.htm"
    }
  ],
  "meta": { "source": "sec_edgar_direct", "data_delay": "live" }
}

5. compare_disclosure_signals

Side-by-side comparison of 2-5 companies across all key disclosure signals. All lookups run in parallel.

Returns per-company: filing_velocity, material_event_count_90d, redflag_count_365d, activist_risk_flag, last_filing_date.

Returns winners (as CIKs, not tickers — cross-reference with the companies[] array): quietest_disclosure, most_active, most_redflags, activist_targets.

Example output (abbreviated):

{
  "companies": [
    {
      "ticker": "AAPL",
      "cik": "0000320193",
      "filing_velocity": "NORMAL",
      "material_event_count_90d": 4,
      "redflag_count_365d": 0,
      "activist_risk_flag": false,
      "last_filing_date": "2026-04-25"
    },
    {
      "ticker": "MSFT",
      "cik": "0000789019",
      "filing_velocity": "ACCELERATING",
      "material_event_count_90d": 7,
      "redflag_count_365d": 0,
      "activist_risk_flag": false,
      "last_filing_date": "2026-04-26"
    }
  ],
  "winners": {
    "quietest_disclosure": "0000320193",
    "most_active": "0000789019",
    "most_redflags": null,
    "activist_targets": []
  },
  "meta": { "source": "sec_edgar_direct", "data_delay": "live" }
}

Pricing

All calls are billed on a per-result basis via Apify's Pay-Per-Event (PPE) system. Pricing is charged at the time the tool returns its result.

Default-demo probes (Actor runs with no tool input) are free — they serve a cached result and do not fire a PPE charge. This keeps directory health-check probes and first-time evaluations cost-free. Apify retains a 20 % commission on all PPE revenue; the prices above are gross amounts.

Installation

npm (MCP stdio transport)

npm install -g toolstem-sec-mcp-server

Add to your MCP client config (Claude Desktop, Cursor, etc.):

{
  "mcpServers": {
    "toolstem-sec": {
      "command": "toolstem-sec-mcp-server"
    }
  }
}

No API key required.

Hosted on Apify

Run the Actor directly or connect via the MCP gateway:

https://mcp.apify.com/?tools=toolstem/toolstem-sec-mcp-server

Actor input example:

{
  "tool": "get_material_events_digest",
  "ticker_or_cik": "TSLA",
  "lookback_days": 365
}

HTTP server (self-hosted)

npm install -g toolstem-sec-mcp-server
toolstem-sec-mcp-server --http
# Listens on http://0.0.0.0:3000/mcp

SEC EDGAR fair-access policy

All outbound traffic goes through a shared sliding-window rate limiter (8 rps target, 4 rps safety margin below SEC's 10 rps hard cap). Every request includes a User-Agent header identifying the package and a contact email per SEC policy. Override the contact email via:

SEC_USER_AGENT_CONTACT=you@yourorg.com toolstem-sec-mcp-server

Violating SEC's fair-access policy can result in your IP being blocked. This server is designed to stay compliant automatically.

v0.2 roadmap

• Form 4 XML parsing — direction-aware insider signals (STRONG_BUYING / BUYING / NEUTRAL / SELLING / STRONG_SELLING) with net share counts

• 13F XBRL parsing — quarterly institutional flow signals (ACCUMULATING / HOLDING / DISTRIBUTING) with institution count

• 8-K text extraction — natural-language summaries of each material event from the filing's primary HTML document

License & author

MIT License — see LICENSE.

Built by Toolstem. Data sourced directly from SEC EDGAR.