get_multiple_token_balances

THE RISK

Low Risk

Why get_multiple_token_balances needs a policy

This tool queries wallet balance data and derives pricing information without creating, modifying, deleting, or executing operations. It has no irreversible effects and does not move funds. The blast radius of misuse is limited to information disclosure about wallet holdings, making it a low-severity Read operation.

From the tool's definition The tool retrieves token balance information and USD values for a wallet address. The verb 'get' and the query-like nature (retrieving balances with no modification described) indicate a read-only operation.

Documented attack patterns abuse exactly the kind of access get_multiple_token_balances gives an agent:

POLICY

How to control get_multiple_token_balances

PolicyLayer is an MCP gateway — it sits between your AI agents and EDUCHAIN Agent Kit, and nothing reaches the server without passing your rules. This is the rule we recommend for get_multiple_token_balances:

policy.json

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

get_multiple_token_balances is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register EDUCHAIN Agent Kit — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More EDUCHAIN Agent Kit tools

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All 29 EDUCHAIN Agent Kit tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_multiple_token_balances

What does the get_multiple_token_balances tool do? +

Get multiple token balances for a wallet address with USD values using SailFish as price oracle. It is categorised as a Read tool in the EDUCHAIN Agent Kit MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_multiple_token_balances? +

Register the EDUCHAIN Agent Kit MCP server in PolicyLayer and add a rule for get_multiple_token_balances: 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 EDUCHAIN Agent Kit. Nothing to install.

What risk level is get_multiple_token_balances? +

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

Can I rate-limit get_multiple_token_balances? +

Yes. Add a rate_limit block to the get_multiple_token_balances 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_multiple_token_balances completely? +

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

get_multiple_token_balances is provided by the EDUCHAIN Agent Kit MCP server (sailfish-finance/educhain-ai-agent-kit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every EDUCHAIN Agent Kit tool call.

Start from EDUCHAIN Agent Kit, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →