Estimate the cost of an AI request before making it. Returns estimated USD cost based on prompt length and model.
AI agents call estimate_cost to retrieve information from Solanaprox without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns cost information derived from input parameters (prompt length, model selection). It performs no state changes, does not execute transactions, and does not modify or delete data. The operation is purely informational and advisory in nature, making it a Read category risk.
From the tool's definition Tool name 'estimate_cost' and description 'Returns estimated USD cost based on prompt length and model' indicate a read-only query operation that retrieves cost estimation data without side effects.
Attacks that exploit this kind of access
Estimate the cost of an AI request before making it. Returns estimated USD cost based on prompt length and model. It is categorised as a Read tool in the Solanaprox MCP Server, which means it retrieves data without modifying state.
Register the Solanaprox MCP server in PolicyLayer and add a rule for estimate_cost: 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 Solanaprox. Nothing to install.
estimate_cost 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_cost 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_cost. 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_cost is provided by the Solanaprox MCP server (solanaprox/mcp-server). 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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