SEC 13F, Congress trades & insider buying
Description
**SEC 13F filings, Congress trades, and insider buying as MCP tools. Free, no API key, accepts natural names.** StockSlash exposes ~80 institutional investors (Buffett, Burry, Ackman, Pabrai, Tepper, Loeb, and more), the members of Congress who trade stocks, and corporate insider filings as **23 callable tools**. Pass natural names like `investor: "Buffett"`, `stock: "Apple"`, or `member_name: "Pelosi"`. No CIK or ticker lookup needed. Typical agent queries: - *"Tell me about Buffett"* - *"Compare Burry and Ackman"* - *"Are insiders bullish on Tesla?"* - *"What did Pabrai buy last quarter?"* - *"What is Nancy Pelosi trading?"* ## Start here: 4 bundle tools Each replaces 3 to 4 separate calls. - **`analyze_investor`** — full fund profile in one call: AUM, 8-quarter trend, top 10 holdings with weights, recent activity (Buy / Add / Reduce / Sold), and trading style. Required: `investor`. - **`analyze_stock`** — full institutional picture of a stock: top 10 h
What our measurements say
SEC 13F, Congress trades & insider buying is a remote MCP server published at stockslash.com. It has been probed 6 times since 9/10/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 545 ms, a delay an agent will notice. It exposes a broad tool surface of 23 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Most tools have clear use cases defined in descriptions
- Natural name input capability enhances usability
- Comprehensive coverage of investor, stock, and insider data
Weaknesses
- Some tool names are ambiguous (e.g., 'get_ownership_statistics_home')
- Incomplete descriptions with cut-off sentences
- Parameter type definitions are inconsistently specified
- Tool overlap exists between analyze_* and get_* functions
get_super_investors— Description cuts off mid-sentenceget_ownership_statistics_home— Ambiguous 'home' suffix in nameget_sp_stocks_by_holders— Parameter 'limit' lacks clear required/optional statusget_investor_current_holdings— Description ends mid-sentenceanalyze_investor— Overlaps with get_investor_* tools
Verdict
Event narrative
Risk: medium
- 2026-09-10T21:16:35.016Z — era changed from 'auth-gated' to 'legacy' · system moved to legacy mode with compliance score initialized
- 2026-09-11T09:28:19.138Z — complianceScore set to 100 · system achieved full compliance status
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 133ms → warm 151ms (penalty 0ms)
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Server build: — → 1.0.0
- Supported versions: — → 2024-11-05
- Era changed: Auth-gated → Legacy
- Added to watch — era: Auth-gated
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