Get current payment vault balances for an agent mint. Shows total, buyback portion, and withdraw portion.
AI agents call get_vault_balances to retrieve information from Agenti without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool is fundamentally a read operation (retrieves balance data with no side effects). It merits medium severity rather than low because exposure of financial account balances to an untrusted AI agent could inform decisions to move cryptocurrency, and an agent observing vault state might be incentivized to perform unauthorized financial actions.
From the tool's definition Tool description states 'Get current payment vault balances' — a retrieval operation with no modification. However, the server context describes financial cryptocurrency operations where an agent can 'autonomously hold, spend, earn, and receive cryptocurrency.
Documented attack patterns abuse exactly the kind of access get_vault_balances gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Agenti, and nothing reaches the server without passing your rules. This is the rule we recommend for get_vault_balances:
{
"version": "1",
"default": "deny",
"tools": {
"get_vault_balances": {}
}
}get_vault_balances is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get current payment vault balances for an agent mint. Shows total, buyback portion, and withdraw portion. It is categorised as a Read tool in the Agenti MCP Server, which means it retrieves data without modifying state.
Register the Agenti MCP server in PolicyLayer and add a rule for get_vault_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 Agenti. Nothing to install.
get_vault_balances 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_vault_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.
Set action: deny in the PolicyLayer policy for get_vault_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.
get_vault_balances is provided by the Agenti MCP server (nirholas/agenti). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 73 Agenti tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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73 Agenti tools catalogued and risk-classified — across an index of 42,500+ MCP servers.