store_wallet · Algorand MCP Server MCP: Risk & Policy

WHAT IT DOES

What store_wallet does on Algorand MCP Server

AI agents use store_wallet to create or update resources in Algorand MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Algorand MCP Server environment.

WHY IT NEEDS A POLICY

Why store_wallet needs a policy

This tool writes/persists wallet credentials (encrypted mnemonic) to storage. It is a Write operation as it creates or stores sensitive data. The severity is high because storing wallet credentials — even encrypted — represents a significant security risk if misused: an AI agent could store attacker-controlled mnemonics or overwrite legitimate wallet data, potentially leading to loss of funds or credential…

From the tool's definition Securely store a wallet with encrypted mnemonic

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

store_wallet Rate-limited

store_wallet stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "store_wallet": {
      "limits": [
        {
          "counter": "store_wallet_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Algorand MCP Server, so you can run agents against it safely.

FAQ

Questions about store_wallet

What does the store_wallet tool do? +

Securely store a wallet with encrypted mnemonic. It is categorised as a Write tool in the Algorand MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on store_wallet? +

Register the Algorand MCP Server MCP server in PolicyLayer and add a rule for store_wallet: 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 Algorand MCP Server. Nothing to install.

What risk level is store_wallet? +

store_wallet is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit store_wallet? +

Yes. Add a rate_limit block to the store_wallet 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 store_wallet completely? +

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

store_wallet is provided by the Algorand MCP Server MCP server (jake-loranger/algorand-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.