mcp-tronlink-signer

GitHub: https://github.com/TronLink/mcp-tronlink-signer

MCP Server that exposes tronlink-signer as MCP tools for Claude and other AI clients. Sign TRON transactions via TronLink browser wallet with user approval — private keys never leave the wallet.

Setup

Claude Code

claude mcp add -s user tronlink-signer -- npx mcp-tronlink-signer

Claude Desktop / Cursor

{
  "mcpServers": {
    "tronlink-signer": {
      "command": "npx",
      "args": ["mcp-tronlink-signer"]
    }
  }
}

From Source

git clone https://github.com/TronLink/mcp-tronlink-signer.git
cd mcp-tronlink-signer
pnpm install && pnpm build

Then point to the built CLI:

claude mcp add -s user tronlink-signer -- node /path/to/packages/mcp-tronlink-signer/dist/cli.js

MCP Tools

Tool	Description	Parameters
`connect_wallet`	Connect TronLink wallet	`network?`
`send_trx`	Send TRX to an address	`to`, `amount`, `network?`
`send_trc20`	Send TRC20 tokens	`contractAddress`, `to`, `amount`, `decimals?`, `network?`
`sign_message`	Sign a message	`message`, `network?`
`sign_typed_data`	Sign EIP-712 typed data	`typedData`, `network?`
`sign_transaction`	Sign a raw transaction	`transaction`, `network?`
`get_balance`	Get TRX balance	`address`, `network?`

All tools support an optional network parameter (mainnet / nile / shasta), defaulting to mainnet.

MCP Resources

URI	Description
`wallet://networks`	Available networks and their configurations
`wallet://config`	Current signer configuration

MCP Prompts

Prompt	Description
`send-trx`	Guided workflow for sending TRX
`check-balance`	Guided workflow for checking balance
`send-token`	Guided workflow for sending TRC20 tokens

How It Works

AI agent calls an MCP tool (e.g., send_trx)
The server delegates to tronlink-signer, which starts a local HTTP server and opens a browser approval page
The approval page discovers TronLink via TIP-6963 protocol
Auto-unlocks wallet and switches network if needed
User reviews and approves in the browser
TronLink signs the transaction — private keys never leave the wallet
Result is returned to the AI agent

Environment Variables

Variable	Description	Default
`TRON_NETWORK`	Default network (mainnet/nile/shasta)	`mainnet`
`TRON_HTTP_PORT`	Local HTTP server port	`3386`
`TRON_API_KEY`	TronGrid API key (optional)	-