Request a quote for an OTC (Over-The-Counter) trade on Binance.US. This endpoint requests a price quote for converting one coin to another via OTC. The quote is valid for a limited time (check validTimestamp in response). ⚠️ IMPORTANT: The quote must be used quickly as it expires based on validTi...
AI agents use binance_us_otc_quote 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 initiates a financial trade quote in an OTC context on Binance.US. While requesting a quote alone may not immediately move funds, OTC quotes in financial systems are often binding or lead directly to trade execution, especially given the warning that the quote expires and 'must be used quickly.' The financial context (crypto trading, coin conversion) and the tight time constraint suggest this is part of a…
From the tool's definition Request a quote for an OTC (Over-The-Counter) trade on Binance.US... requests a price quote for converting one coin to another via OTC
Documented attack patterns abuse exactly the kind of access binance_us_otc_quote 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_otc_quote:
{
"version": "1",
"default": "deny",
"tools": {
"binance_us_otc_quote": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to binance_us_otc_quote is blocked until a human approves it. The rest of the server keeps working.
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Request a quote for an OTC (Over-The-Counter) trade on Binance.US. This endpoint requests a price quote for converting one coin to another via OTC. The quote is valid for a limited time (check validTimestamp in response). ⚠️ IMPORTANT: The quote must be used quickly as it expires based on validTimestamp. Parameters: - fromCoin: The coin you want to sell (e.g., BTC, SHIB) - toCoin: The coin you want to buy (e.g., USDT, KSHIB) - requestCoin: Which coin. 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_otc_quote: 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_otc_quote 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_otc_quote 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_otc_quote. 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_otc_quote 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.