estimate_staking_yield
Project annual yield on a hypothetical staking amount for Lido or EigenLayer using current APRs. Use this for 'what would I earn if I staked X ETH?' questions before the user commits capital. Returns the protocol, input amount, APR used, and projected annual rewards denominated in the same asset....
This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/estimate-staking-yield.md
What estimate_staking_yield does on VaultPilot MCP
AI agents call estimate_staking_yield to retrieve information from VaultPilot MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
amount | number | Yes | Human-readable decimal amount of the staked asset (ETH for lido, LST for eigenlayer). Example: 1.5 for 1.5 ETH. |
protocol | string | Yes | Which staking protocol to project yield for. "lido" = native ETH liquid staking (stETH APR); "eigenlayer" = restaking (LST deposit APR, protocol-dependent). |
Parameters from the server's own tool schema.
Why estimate_staking_yield is rated Low
This is a pure calculation and projection tool that takes user-supplied parameters and returns estimated yields. It retrieves no sensitive data, modifies nothing, executes no transactions, and commits no financial obligations. The tool is explicitly designed to help users evaluate scenarios before making decisions, not to execute those decisions.
From the tool's definition Tool performs forward-looking calculations on hypothetical amounts. Description explicitly states 'Purely forward-looking — does NOT read any wallet or on-chain position' and returns only 'protocol, input amount, APR used, and projected annual rewards'.
Attacks that exploit this kind of access
The rule that runs estimate_staking_yield safely
PolicyLayer is an MCP gateway: it sits between your AI agents and VaultPilot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For estimate_staking_yield, this is the rule to start with:
estimate_staking_yield is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every estimate_staking_yield call is checked against it from then on.
Questions about estimate_staking_yield
Project annual yield on a hypothetical staking amount for Lido or EigenLayer using current APRs. Use this for 'what would I earn if I staked X ETH?' questions before the user commits capital. Returns the protocol, input amount, APR used, and projected annual rewards denominated in the same asset. Purely forward-looking — does NOT read any wallet or on-chain position; pair with get_staking_positions for actual holdings. It is categorised as a Read tool in the VaultPilot MCP MCP Server, which means it retrieves data without modifying state.
estimate_staking_yield accepts 2 parameters: amount, protocol. Required: amount, protocol. The full parameter table on this page comes from the server's own tool schema.
Register the VaultPilot MCP server in PolicyLayer and add a rule for estimate_staking_yield: 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 VaultPilot MCP. Nothing to install.
estimate_staking_yield 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 estimate_staking_yield 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 estimate_staking_yield. 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.
estimate_staking_yield is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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