Calculate the Negative Volume Index (NVI) for a given trading pair using Binance OHLCV data
AI agents call calculate_negative_volume_index to retrieve information from BNB Chain MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only analytical tool that computes a technical indicator from market data. It retrieves or processes existing data (Binance OHLCV) to produce a derived metric with no side effects, no data modification, no code execution on external systems, and no financial transactions. The blast radius if misused is minimal—it would only provide incorrect technical analysis output.
From the tool's definition The tool 'calculate_negative_volume_index' is described as calculating a technical analysis indicator (NVI) using existing OHLCV (Open, High, Low, Close, Volume) data from Binance.
Documented attack patterns abuse exactly the kind of access calculate_negative_volume_index gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for calculate_negative_volume_index:
{
"version": "1",
"default": "deny",
"tools": {
"calculate_negative_volume_index": {}
}
}calculate_negative_volume_index is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Calculate the Negative Volume Index (NVI) for a given trading pair using Binance OHLCV data. It is categorised as a Read tool in the BNB Chain MCP MCP Server, which means it retrieves data without modifying state.
Register the BNB Chain MCP server in PolicyLayer and add a rule for calculate_negative_volume_index: 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 BNB Chain MCP. Nothing to install.
calculate_negative_volume_index 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 calculate_negative_volume_index 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 calculate_negative_volume_index. 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.
calculate_negative_volume_index is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.