get_ft_balance

Get fungible token balance for a specific address

SERVERStacks AI MCP Server SOURCEstack-ai-mcp/stacks-mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/stack-ai-mcp-stacks-mcp-server/get-ft-balance.md

WHAT IT DOES

What get_ft_balance does on Stacks AI MCP Server

AI agents call get_ft_balance to retrieve information from Stacks AI MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_ft_balance is rated Low

This tool performs data retrieval only - querying the balance of a fungible token at a given address. It does not create, modify, delete, or execute any operations. While it operates in a DeFi context (which involves financial assets), reading a balance is fundamentally a read operation, not a financial transaction.

From the tool's definition get_ft_balance retrieves fungible token balance for a specific address, which is a read-only query operation with no side effects or modifications to data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_ft_balance safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Stacks AI MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_ft_balance, this is the rule to start with:

get_ft_balance Allowed

get_ft_balance is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_ft_balance": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Stacks AI MCP Server, apply this rule, and every get_ft_balance call is checked against it from then on.

FAQ

Questions about get_ft_balance

What does the get_ft_balance tool do? +

Get fungible token balance for a specific address. It is categorised as a Read tool in the Stacks AI MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_ft_balance? +

Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for get_ft_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 Stacks AI MCP Server. Nothing to install.

What risk level is get_ft_balance? +

get_ft_balance is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_ft_balance? +

Yes. Add a rate_limit block to the get_ft_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.

How do I block get_ft_balance completely? +

Set action: deny in the PolicyLayer policy for get_ft_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.

What MCP server provides get_ft_balance? +

get_ft_balance is provided by the Stacks AI MCP Server MCP server (stack-ai-mcp/stacks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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