Get all open custodial trade orders. ⚠️ REQUIRES CUSTODIAL SOLUTION API KEY ⚠️ Do not call without a symbol parameter as it returns all pairs and can be slow. Response is an array of open orders with: symbol, orderId, price, origQty, executedQty, status, type, side, stopPrice, time, updateTime, i...
AI agents call binance_us_cust_open_orders to retrieve information from Sperax Ecosystem Crypto & DeFI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves/queries open trade orders without placing, modifying, or canceling any orders. It is a read operation. Severity is medium because it exposes sensitive financial trading data (open orders, prices, quantities, order IDs) tied to a custodial account with API key access, which could be misused for front-running or surveillance of trading activity.
From the tool's definition Get all open custodial trade orders
Documented attack patterns abuse exactly the kind of access binance_us_cust_open_orders gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sperax Ecosystem Crypto & DeFI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for binance_us_cust_open_orders:
{
"version": "1",
"default": "deny",
"tools": {
"binance_us_cust_open_orders": {}
}
}binance_us_cust_open_orders is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get all open custodial trade orders. ⚠️ REQUIRES CUSTODIAL SOLUTION API KEY ⚠️ Do not call without a symbol parameter as it returns all pairs and can be slow. Response is an array of open orders with: symbol, orderId, price, origQty, executedQty, status, type, side, stopPrice, time, updateTime, isWorking, expressTradeFlag. It is categorised as a Read tool in the Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sperax Ecosystem Crypto & DeFI MCP Server MCP server in PolicyLayer and add a rule for binance_us_cust_open_orders: 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 Sperax Ecosystem Crypto & DeFI MCP Server. Nothing to install.
binance_us_cust_open_orders 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 binance_us_cust_open_orders 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_cust_open_orders. 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_cust_open_orders is provided by the Sperax Ecosystem Crypto & DeFI MCP Server MCP server (sperax/sperax-crypto-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sperax Ecosystem Crypto & DeFI 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.
1318 Sperax Ecosystem Crypto & DeFI MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.