Symbol MCP Server

by inotakehio.github.inotakeh/symbolv0.10.0

Read-only MCP server for the Symbol blockchain (XYM): node health, harvesting, voting keys.

1Node.jsstdioofficial registry

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security

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freshness

Active2d ago

Install Symbol MCP server

claude mcp add symbol -e SYMBOL_NODE_URL='<symbol-node-url>' -- npx -y symbol-mcp-server

{
  "mcpServers": {
    "symbol": {
      "command": "npx",
      "args": [
        "-y",
        "symbol-mcp-server"
      ],
      "env": {
        "SYMBOL_NODE_URL": "<symbol-node-url>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "symbol": {
      "command": "npx",
      "args": [
        "-y",
        "symbol-mcp-server"
      ],
      "env": {
        "SYMBOL_NODE_URL": "<symbol-node-url>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "symbol": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "symbol-mcp-server"
      ],
      "env": {
        "SYMBOL_NODE_URL": "<symbol-node-url>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "symbol": {
      "command": "npx",
      "args": [
        "-y",
        "symbol-mcp-server"
      ],
      "env": {
        "SYMBOL_NODE_URL": "<symbol-node-url>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
SYMBOL_NODE_URL	yes	—	REST URL of the Symbol node to query, e.g. https://<node-host>:3001; https:// is required (http:// only for localhost / 127.0.0.1 / [::1]) and the port is used exactly as given.
SYMBOL_NETWORK	—	—	mainnet or testnet; when set, start-up fails if the node reports a different network.
SYMBOL_TIMEZONE	—	—	IANA zone such as Asia/Tokyo that adds a local time next to every UTC timestamp.
SYMBOL_REFERENCE_NODES	—	—	Comma-separated https:// node URLs that symbol_network_compare and symbol_version_drift check against; no other host is ever contacted.
SYMBOL_REQUEST_TIMEOUT_MS	—	—	Per-request timeout in milliseconds, 100 to 600000 (default 10000).
SYMBOL_STATE_DIR	—	—	Absolute directory where symbol_harvesting_status keeps one snapshot file per node (unlocked harvester public keys, heights and times; no secrets) when it is asked to compare or save, created on first save with mode 0700; when unset, the tool reports the current list without a comparison.

Freshness

Active — last maintenance signal 2d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-07 · 2d ago · GitHub
Latest release
2026-10-07 · 2d ago · GitHub · v0.10.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-07 · 2d ago · official registry · v0.10.0

FAQ

›How do I install the Symbol MCP server in Claude Code?

Run: claude mcp add symbol -e SYMBOL_NODE_URL='<symbol-node-url>' -- npx -y symbol-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Symbol require an API key?

Yes. It expects SYMBOL_NODE_URL.

›Can I use Symbol as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Symbol in the official MCP registry?

Yes, as io.github.inotakeh/symbol.