AI agents call api_vestige_view_vaults to retrieve information from Sperax Ecosystem Crypto & DeFI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves vault data from the Sperax DeFi ecosystem. The verb 'Get' and 'view' confirm it performs a read-only query operation. There is no indication it modifies state, executes code, deletes data, or commits financial transactions. The blast radius if misused is minimal—an agent could only gather information about available vaults without causing harm.
From the tool's definition Tool name contains 'view' and description states 'Get all vaults', indicating retrieval of vault information without modification or side effects.
Documented attack patterns abuse exactly the kind of access api_vestige_view_vaults gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for api_vestige_view_vaults:
{
"version": "1",
"default": "deny",
"tools": {
"api_vestige_view_vaults": {}
}
} api_vestige_view_vaults is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all vaults. It is categorised as a Read tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for api_vestige_view_vaults: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.
api_vestige_view_vaults 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 api_vestige_view_vaults 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 api_vestige_view_vaults. 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.
api_vestige_view_vaults is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sperax Ecosystem Crypto & DeFI MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.