Fetch a single balance account by id (Balance Platform BCL v2).
AI agents call get_balance_account to retrieve information from Mcp Ap2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs a query operation to retrieve balance account information. While it accesses financial data, it does not move money, commit financial obligations, or modify state—it only reads existing account balance information. This qualifies as a Read operation with low severity since unauthorized access to balance data has limited immediate impact compared to actual financial transactions.
From the tool's definition Tool name 'get_balance_account' and description 'Fetch a single balance account by id' explicitly indicate a retrieval operation with no modification.
Documented attack patterns abuse exactly the kind of access get_balance_account gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for get_balance_account:
{
"version": "1",
"default": "deny",
"tools": {
"get_balance_account": {}
}
}get_balance_account is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Fetch a single balance account by id (Balance Platform BCL v2). It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.
Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for get_balance_account: 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 Mcp Ap2. Nothing to install.
get_balance_account 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_balance_account 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_balance_account. 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_balance_account is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1300 Mcp Ap2 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.