Fetch a wallet's balance of any ERC-20 token or the chain's native coin. Pass token: "native" for ETH (or chain-native asset) or an ERC-20 contract address. Returns amount, decimals, symbol, and USD value. For TRON, pass chain: "tron" with a base58 wallet (prefix T) and either token: "native" for...
AI agents call get_token_balance to retrieve information from VaultPilot MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
chain | string | — | |
token | object | Yes | |
wallet | object | Yes |
Parameters from the server's own tool schema.
Even though get_token_balance only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHandles credentials or secrets (token)
Attacks that exploit this kind of access
Fetch a wallet's balance of any ERC-20 token or the chain's native coin. Pass token: "native" for ETH (or chain-native asset) or an ERC-20 contract address. Returns amount, decimals, symbol, and USD value. For TRON, pass chain: "tron" with a base58 wallet (prefix T) and either token: "native" for TRX or a base58 TRC-20 address; returns a TronBalance (same fields, base58 token id). For Solana, pass chain: "solana" with a base58 wallet (43-44 chars) and either token: "native" for SOL or an SPL mint address; returns a SolanaBalance (same fields, base58 mint). It is categorised as a Read tool in the VaultPilot MCP MCP Server, which means it retrieves data without modifying state.
get_token_balance accepts 3 parameters: chain, token, wallet. Required: token, wallet. The full parameter table on this page comes from the server's own tool schema.
Register the VaultPilot MCP server in PolicyLayer and add a rule for get_token_balance: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches VaultPilot MCP. Nothing to install.
get_token_balance is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_token_balance rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_token_balance. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_token_balance is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.