Get total open interest in perpetual futures for any asset, with 1h and 24h change rates. Pairs with funding_rates to complete the derivatives picture — rising OI with high funding = overcrowded position.
AI agents call open_interest to retrieve information from AgentPay x402 — Economic-intelligence layer for AI Agents without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves market data (open interest figures and change rates) for informational/analytical purposes. It has no side effects — it does not execute trades, move funds, or modify any state. The pay-per-call nature means each invocation costs USDC, but that cost is an infrastructure fee for data access, not a financial transaction initiated by the tool itself.
From the tool's definition Get total open interest in perpetual futures for any asset, with 1h and 24h change rates
Attacks that exploit this kind of access
Get total open interest in perpetual futures for any asset, with 1h and 24h change rates. Pairs with funding_rates to complete the derivatives picture — rising OI with high funding = overcrowded position. It is categorised as a Read tool in the AgentPay x402 — Economic-intelligence layer for AI Agents MCP Server, which means it retrieves data without modifying state.
Register the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server in PolicyLayer and add a rule for open_interest: 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 AgentPay x402 — Economic-intelligence layer for AI Agents. Nothing to install.
open_interest 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 open_interest 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 open_interest. 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.
open_interest is provided by the AgentPay x402 — Economic-intelligence layer for AI Agents MCP server (romudille-bit/agentpay). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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