Used to look up minimum balance required for rent exemption by data size
AI agents call getMinimumBalanceForRentExemption to retrieve information from AMOCA Solana MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only query that retrieves a calculated minimum balance value based on data size—a Solana RPC informational method. It has no side effects, does not transfer funds, execute code, or modify state. The low severity reflects minimal blast radius: misuse would only return incorrect balance calculations, not enable actual financial harm or data destruction.
From the tool's definition Tool name 'getMinimumBalanceForRentExemption' and description 'Used to look up minimum balance required for rent exemption by data size' indicate a query operation that retrieves blockchain parameter information without modifying state or executing…
Attacks that exploit this kind of access
Used to look up minimum balance required for rent exemption by data size. It is categorised as a Read tool in the AMOCA Solana MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AMOCA Solana MCP Server MCP server in PolicyLayer and add a rule for getMinimumBalanceForRentExemption: 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 AMOCA Solana MCP Server. Nothing to install.
getMinimumBalanceForRentExemption 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 getMinimumBalanceForRentExemption 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 getMinimumBalanceForRentExemption. 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.
getMinimumBalanceForRentExemption is provided by the AMOCA Solana MCP Server MCP server (manolaz/amoca-solana-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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