wallet_sign_message
Sign messages securely using the MCP Crypto Wallet EVM server. Enable Ethereum and EVM-compatible blockchain operations by providing a wallet (private key, mnemonic, or JSON) and the message to sign.
Instructions
Sign a message
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| message | Yes | The message to sign | |
| wallet | No | The wallet (private key, mnemonic, or JSON). If not provided, uses PRIVATE_KEY environment variable if set. |
Input Schema (JSON Schema)
{
"properties": {
"message": {
"description": "The message to sign",
"type": "string"
},
"wallet": {
"description": "The wallet (private key, mnemonic, or JSON). If not provided, uses PRIVATE_KEY environment variable if set.",
"type": "string"
}
},
"required": [
"message"
],
"type": "object"
}