get_account_nonces · Stacks AI MCP Server MCP: Risk & Policy

WHAT IT DOES

What get_account_nonces does on Stacks AI MCP Server

AI agents call get_account_nonces 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.

WHY IT NEEDS A POLICY

Why get_account_nonces needs a policy

This tool retrieves nonce information (a read-only account property used to sequence transactions) with no side effects, no irreversible operations, no financial consequences, and no code/command execution. It is a straightforward data retrieval operation typical of blockchain query endpoints.

From the tool's definition Tool name 'get_account_nonces' with description 'Get nonce information for an account' indicates a query operation that retrieves account state data without modification or execution of transactions.

Attacks that exploit this kind of access

Questions about get_account_nonces

What does the get_account_nonces tool do? +

Get nonce information for an account. 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_account_nonces? +

Register the Stacks AI MCP Server MCP server in PolicyLayer and add a rule for get_account_nonces: 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_account_nonces? +

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

Can I rate-limit get_account_nonces? +

Yes. Add a rate_limit block to the get_account_nonces 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_account_nonces completely? +

Set action: deny in the PolicyLayer policy for get_account_nonces. 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_account_nonces? +

get_account_nonces 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.