Signal8 MCP MCP server

The Signal8 MCP server provides AI agents with access to real-time financial data, including SEC filings, insider trading activity, institutional ownership, and political trade information. It enables developers to build applications that monitor market movements and corporate governance events.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Signal8

MCP endpoint (Streamable HTTP)

https://mcp.signal8.ai/mcp

Vendor documentation

What you can do with it

Monitor SEC filings for specific companies
Track insider trading activity
Analyze institutional ownership changes
Access political trade data

Tools advertised by the last live check:

search_companies
get_company_profile
get_quote
get_market_metrics
get_short_interest
get_float
get_float_history
get_historical_prices
get_stock_price_change
get_financials
get_earnings
get_executives
get_news
get_analyst_consensus
get_analyst_estimates
get_clinical_trials
search_clinical_trials
get_top_movers
get_market_news
get_market_breadth
get_trading_halts
get_earnings_calendar
get_economic_calendar
get_filing_calendar
get_post_earnings_movers
get_recent_material_filings
screen_sec_filings
search_sec_filings
get_filing_document
get_filing_exhibits
get_exhibit_content
search_filing_text
lookup_accession_number
screen_sec_filings_performance
get_insiders
get_ownership
get_institutions
get_institution_detail
get_institution_holdings
get_institution_position_changes
get_institution_activity
get_institution_filings
get_institution_derivatives
get_institution_portfolio_analytics
get_institutions_leaderboards
get_insider_transactions
get_insider_cluster_buys
get_institution_top_aum
search_institutions
get_insider_cross_company
get_compliance
screen_companies
get_premarket_scan_history
get_split_history
get_etf_bundle
get_politicians
get_politician_detail
get_politician_transactions
get_politician_activity
get_politicians_most_active
get_politician_recent_trades
get_politician_disclosures
get_politician_late_filers
get_politician_committees
get_politician_votes
get_politician_pnl
get_politicians_pnl_leaderboard
get_politician_roles
get_recent_congressional_votes
get_recently_sponsored_bills
get_political_sector_rotation
get_senate_trades_by_ticker
get_cash_position
get_cash_history
screen_must_raise
get_cash_runway_calendar
get_dilution_coverage
get_dilution_risk
get_dilution_snapshot
get_dilution_instruments
get_baby_shelf_capacity
get_dilution_performance
get_dilution_history
get_intraday_bars
get_volume_profile
get_accumulation_snapshot
get_insider_positions
get_insider_positions_by_ticker
get_analyst_grades
get_price_target
get_analyst_coverage
get_politician_donors
get_politician_donor_summary
get_donor_aggregates
get_policy_events
get_policy_trade_overlap
get_policy_trade_leaderboard
get_legislative_calendar
get_rvol_history
get_premarket_scanner
get_upcoming_reverse_splits
get_recent_uplistings

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http signal8-mcp https://mcp.signal8.ai/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add signal8-mcp --url https://mcp.signal8.ai/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable signal8-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "signal8-mcp": {
      "url": "https://mcp.signal8.ai/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "signal8-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.signal8.ai/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start signal8-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "signal8-mcp": {
      "type": "http",
      "url": "https://mcp.signal8.ai/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http signal8-mcp https://mcp.signal8.ai/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "signal8-mcp": {
      "url": "https://mcp.signal8.ai/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "signal8-mcp": {
      "serverUrl": "https://mcp.signal8.ai/mcp"
    }
  }
}

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