Find the cheapest models suitable for a specific task type. Returns models sorted by price that meet minimum quality.
AI agents call find_cheapest to retrieve information from AgentCost MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries pricing and model information to return sorted results. It has no side effects: it does not create, modify, or delete data; does not execute code or external operations; and does not move money. It is a straightforward read operation that retrieves cost comparison data to inform decision-making.
From the tool's definition Tool description states 'Returns models sorted by price' — a query operation that retrieves and presents data without modifying, deleting, or executing external actions. The verb 'Find' and the return-only behavior confirm passive data retrieval.
Attacks that exploit this kind of access
Find the cheapest models suitable for a specific task type. Returns models sorted by price that meet minimum quality. It is categorised as a Read tool in the AgentCost MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AgentCost MCP Server MCP server in PolicyLayer and add a rule for find_cheapest: 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 AgentCost MCP Server. Nothing to install.
find_cheapest 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 find_cheapest 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 find_cheapest. 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.
find_cheapest is provided by the AgentCost MCP Server MCP server (oneagentlabs/agentcost-mcp). 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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