Get list of holders for a fungible token
AI agents call get_ft_holders to retrieve information from Stacks AI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves holder information for fungible tokens, which is a read-only query operation. It has no side effects, does not execute transactions, does not modify blockchain state, and does not involve financial movements. The blast radius is minimal as misuse would only expose public blockchain data that is already visible on-chain. Classification: Read with low severity.
From the tool's definition Tool name 'get_ft_holders' and description 'Get list of holders for a fungible token' indicate a query operation that retrieves data without modifying or executing any operations.
Attacks that exploit this kind of access
Get list of holders for a fungible token. It is categorised as a Read tool in the Stacks AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for get_ft_holders: 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.
get_ft_holders 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_ft_holders 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_ft_holders. 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_ft_holders 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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