Do I need an API key to connect Claude Code?

Yes. Replace sk_live_YOUR_KEY in the command with a key from the API keys tab on the Signal8 MCP page.

Which plan includes MCP access?

Signal8 Pro, at $59/mo or $588/yr.

What is the Signal8 MCP server URL?

https://mcp.signal8.ai/mcp. It is hosted, so there is nothing to install.

Connect Signal8 to Claude Code

One command adds the hosted Signal8 MCP server to Claude Code, the Claude CLI, so it can read SEC filings, insider and congressional trades, dilution and market data.

Setup

Run this in your terminal:

terminal

claude mcp add --transport http signal8 https://mcp.signal8.ai/mcp \
  --header "Authorization: Bearer sk_live_YOUR_KEY"

Replace sk_live_YOUR_KEY with a key from the API keys tab.

Then ask

Once connected, Claude Code can call any of the 113 Signal8 tools. Ask in plain English and it picks the right one.

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Questions

Do I need an API key to connect Claude Code?: Yes. Replace sk_live_YOUR_KEY in the command with a key from the API keys tab on the Signal8 MCP page.
Which plan includes MCP access?: Signal8 Pro, at $59/mo or $588/yr.
What is the Signal8 MCP server URL?: https://mcp.signal8.ai/mcp. It is hosted, so there is nothing to install.