Get the balance of a specific holder for an RWA token
AI agents call get_holder_balance to retrieve information from RWA Pipe 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 blockchain data (a holder's token balance) with no side effects, mutations, or external operations triggered. It is a straightforward data lookup operation, consistent with the Read category which covers queries that retrieve or fetch data.
From the tool's definition Tool name 'get_holder_balance' and description 'Get the balance of a specific holder for an RWA token' indicate a query operation that retrieves balance information without modifying or executing any actions.
Attacks that exploit this kind of access
Get the balance of a specific holder for an RWA token. It is categorised as a Read tool in the RWA Pipe MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RWA Pipe MCP Server MCP server in PolicyLayer and add a rule for get_holder_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 RWA Pipe MCP Server. Nothing to install.
get_holder_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_holder_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_holder_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_holder_balance is provided by the RWA Pipe MCP Server MCP server (rwapipe/mcp). 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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