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Cursor HyperSignal MCP hl_set_webhook

How to: Cursor HyperSignal MCP hl_set_webhook

client:Cursor transport:streamable-http tool:hl_set_webhook

Add HyperSignal MCP to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "hypersignal-mcp": {
      "url": "https://hypersmash.fly.dev/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

    Ask for something hl_set_webhook does. Cursor lists the server's tools on connect and calls hl_set_webhook itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that HyperSignal MCP's identifier in your config matches the one above exactly.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Set these first

HyperSignal MCP will not start until these are set, so hl_set_webhook never becomes available.

  • HL_NETWORK
  • HL_ENABLE_TRADING
  • HL_AGENT_PRIVATE_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.