Cancel an existing order and place a new order on the same symbol atomically. This is useful for modifying order parameters.
AI agents use binance_us_cancel_replace to commit financial operations through Binance US MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool cancels an existing financial order and places a new one in a single atomic operation on a cryptocurrency exchange. It directly commits financial obligations by placing live trading orders, making it Financial category. Misuse could result in unintended trades, significant financial losses, or market manipulation — hence critical severity.
From the tool's definition Cancel an existing order and place a new order on the same symbol atomically
Documented attack patterns abuse exactly the kind of access binance_us_cancel_replace gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Binance US MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for binance_us_cancel_replace:
{
"version": "1",
"default": "deny",
"tools": {
"binance_us_cancel_replace": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to binance_us_cancel_replace is blocked until a human approves it. The rest of the server keeps working.
Free to start. No card required.
Cancel an existing order and place a new order on the same symbol atomically. This is useful for modifying order parameters. It is categorised as a Financial tool in the Binance US MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Binance US MCP Server MCP server in PolicyLayer and add a rule for binance_us_cancel_replace: 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 Binance US MCP Server. Nothing to install.
binance_us_cancel_replace 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_cancel_replace 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_cancel_replace. 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_cancel_replace is provided by the Binance US MCP Server MCP server (nirholas/binance-us-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Binance US MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
93 Binance US MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.