Stake your SOL tokens with Marinade Finance to receive mSOL tokens and earn rewards.
AI agents use stake_msol to commit financial operations through Marinade Finance MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Staking SOL via Marinade Finance is a financial operation: it locks real SOL assets into a smart contract and issues mSOL in return. Misuse by an AI agent could result in unintended commitment of user funds to the protocol, qualifying as a Financial category action with high severity given the direct movement of cryptocurrency assets.
From the tool's definition 'Stake your SOL tokens with Marinade Finance to receive mSOL tokens and earn rewards' — commits SOL tokens to a staking protocol in exchange for mSOL, representing a financial transaction on-chain.
Attacks that exploit this kind of access
Stake your SOL tokens with Marinade Finance to receive mSOL tokens and earn rewards. It is categorised as a Financial tool in the Marinade Finance MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Marinade Finance MCP Server MCP server in PolicyLayer and add a rule for stake_msol: 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 Marinade Finance MCP Server. Nothing to install.
stake_msol is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the stake_msol 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 stake_msol. 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.
stake_msol is provided by the Marinade Finance MCP Server MCP server (leandrogavidia/marinade-finance-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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