Signal8 MCP Server: Install & Setup

Install Signal8 in Claude Code

Remote URL

Claude Code

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

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

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

npm

Claude Code

claude mcp add signal8 -e SIGNAL8_API_KEY=... -- npx -y @signal8ai/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "signal8": {
      "command": "npx",
      "args": [
        "-y",
        "@signal8ai/mcp"
      ],
      "env": {
        "SIGNAL8_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Signal8 MCP server do?

SEC filing data from Signal8: insider and 13F ownership, dilution-risk scoring, STOCK Act trades, FEC campaign finance, filing search and a stock screener.

Is the Signal8 MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Signal8 run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add Signal8 to Claude Code?

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

More finance, fintech & payments MCP servers

View all

Tersign Evidence

12.2k

tersignhq/tersign-js

Signed receipts, verification and dispute evidence for agent-to-agent commerce.

LocalAccount neededTypeScript

Shikamaru

JayOfemi/shikamaru

Deterministic day-count and accrued-interest calculations using ISDA and ICMA conventions.

LocalFreeTypeScript

The13f

pickelfintech/the13f-mcp

Institutional 13F data from SEC EDGAR: manager search, holdings lookup, portfolio similarity, consensus portfolio, market regime and sector flows.

LocalAccount neededPython

Reputation

tradallo/reputation

Tradallo Verified Record Protocol: query verified human and AI-agent trading reputations, track records, trade receipts and Solana memo notarizations.

Local + RemoteAccount neededTypeScript

TILL

1290

tillbooks/tillbooks

Local-first Swiss accounting: double-entry journal entries, invoice categorization and follow-up, and Swiss VAT (MWST) returns, stored in local SQLite.

LocalFreeTypeScript

Pythia Oracle

pythia-the-oracle/pythia-oracle-mcp

On-chain calculated crypto indicators (EMA, RSI, Bollinger Bands, volatility) delivered via Chainlink oracle across multiple timeframes.

LocalAccount neededPython