Historical OHLCV (open/high/low/close/volume) price candles for a coin via CoinGecko
AI agents call get_ohlcv to retrieve information from Agenti without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns historical price information. It has no side effects, does not execute code or commands, does not modify data, and does not involve financial transactions or irreversible operations. Despite the server's overall focus on cryptocurrency operations, this specific tool is a straightforward read-only data retrieval function.
From the tool's definition Tool retrieves historical OHLCV price data via CoinGecko; described as a data fetch operation with no modification or execution capability.
Documented attack patterns abuse exactly the kind of access get_ohlcv gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Agenti, and nothing reaches the server without passing your rules. This is the rule we recommend for get_ohlcv:
{
"version": "1",
"default": "deny",
"tools": {
"get_ohlcv": {}
}
}get_ohlcv is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Historical OHLCV (open/high/low/close/volume) price candles for a coin via CoinGecko. It is categorised as a Read tool in the Agenti MCP Server, which means it retrieves data without modifying state.
Register the Agenti MCP server in PolicyLayer and add a rule for get_ohlcv: 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 Agenti. Nothing to install.
get_ohlcv 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_ohlcv 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_ohlcv. 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_ohlcv is provided by the Agenti MCP server (nirholas/agenti). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 73 Agenti tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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73 Agenti tools catalogued and risk-classified — across an index of 42,500+ MCP servers.