Place a new OCO (One-Cancels-the-Other) order on Binance.US. OCO orders combine a limit order with a stop-loss order. When one triggers, the other is automatically cancelled. Note: For SELL OCOs, limit price > stop price. For BUY OCOs, limit price < stop price.
AI agents use binance_us_new_oco to commit financial operations through BNB Chain MCP — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly places trading orders on a financial exchange (Binance.US), committing real financial transactions. OCO orders involve actual asset purchases or sales, making this a Financial category tool with critical severity due to potential for significant monetary loss if misused by an AI agent.
From the tool's definition Place a new OCO (One-Cancels-the-Other) order on Binance.US... combines a limit order with a stop-loss order
Documented attack patterns abuse exactly the kind of access binance_us_new_oco 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 binance_us_new_oco:
{
"version": "1",
"default": "deny",
"tools": {
"binance_us_new_oco": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to binance_us_new_oco is blocked until a human approves it. The rest of the server keeps working.
Free to start. No card required.
Place a new OCO (One-Cancels-the-Other) order on Binance.US. OCO orders combine a limit order with a stop-loss order. When one triggers, the other is automatically cancelled. Note: For SELL OCOs, limit price > stop price. For BUY OCOs, limit price < stop price. It is categorised as a Financial tool in the BNB Chain MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the BNB Chain MCP server in PolicyLayer and add a rule for binance_us_new_oco: 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.
binance_us_new_oco is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the binance_us_new_oco 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 binance_us_new_oco. 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.
binance_us_new_oco 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.