AI agents call get_fiat_convert_history to retrieve information from Bybit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries historical data about fiat conversions without creating, modifying, deleting, or executing any operations. It is a simple read operation that retrieves financial transaction history. The blast radius of misuse is minimal—an attacker could view past conversion records but cannot modify account state, execute trades, or move funds.
From the tool's definition Tool name is 'get_fiat_convert_history' and description states 'Get fiat conversion history' — both indicate a retrieval operation with no modification or execution.
Attacks that exploit this kind of access
Get fiat conversion history. It is categorised as a Read tool in the Bybit MCP Server, which means it retrieves data without modifying state.
Register the Bybit MCP server in PolicyLayer and add a rule for get_fiat_convert_history: 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 Bybit. Nothing to install.
get_fiat_convert_history 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 get_fiat_convert_history 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 get_fiat_convert_history. 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.
get_fiat_convert_history is provided by the Bybit MCP server (johnnywic/bybit-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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