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 Sperax Ecosystem Crypto & DeFI MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool initiates OTC trade quotes on a financial exchange (Binance.US), which is directly tied to financial transactions involving cryptocurrency conversion. While requesting a quote alone may not immediately move funds, OTC quotes on exchanges are the first step in committing to financial trades, and the warning about expiration ('must be used quickly') implies the quote can be acted upon rapidly.
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 Sperax Ecosystem Crypto & DeFI MCP Server, 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.
Free to start. No card required.
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 Sperax Ecosystem Crypto & DeFI MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Sperax Ecosystem Crypto & DeFI MCP Server 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 Sperax Ecosystem Crypto & DeFI MCP Server. 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 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.