account_sign_data

Cryptographically sign data using a local account's private key, encode the result, and generate outputs for curve, encoded signature, and encoding. Used with NEAR MCP for blockchain interactions.

Instructions

Cryptographically sign a piece of data with a local account's private key, then encode the result with the specified encoding. Outputs the curve, encoded signature, and encoding used.

Input Schema

Name	Required	Description	Default
`accountId`	Yes	The account id of the account that will sign the data. This account must be in the local keystore.
`data`	Yes	The data to sign as a string.
`networkId`	No		mainnet
`signatureEncoding`	No	The encoding to use for signature creation.	base58

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "accountId": {
      "description": "The account id of the account that will sign the data. This account must be in the local keystore.",
      "type": "string"
    },
    "data": {
      "description": "The data to sign as a string.",
      "type": "string"
    },
    "networkId": {
      "default": "mainnet",
      "enum": [
        "testnet",
        "mainnet"
      ],
      "type": "string"
    },
    "signatureEncoding": {
      "default": "base58",
      "description": "The encoding to use for signature creation.",
      "enum": [
        "base58",
        "base64"
      ],
      "type": "string"
    }
  },
  "required": [
    "accountId",
    "data"
  ],
  "type": "object"
}

NEAR MCP

account_sign_data

Instructions

Input Schema

Input Schema (JSON Schema)

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