Subscribe SOL Staking API allows users to stake SOL and receive BNSOL in return. This endpoint requires specifying the amount of SOL to stake, and the response includes the equivalent BNSOL amount and exchange rate for SOL to BNSOL.
AI agents use BinanceSubscribeSolStaking 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 commits real SOL tokens to a staking contract on Binance, receiving BNSOL in return. This is a financial transaction that moves cryptocurrency assets, making it Financial category. Misuse by an AI agent could result in staking arbitrary amounts of SOL without user consent, representing a critical financial risk.
From the tool's definition Subscribe SOL Staking API allows users to stake SOL and receive BNSOL in return...specifying the amount of SOL to stake
Documented attack patterns abuse exactly the kind of access BinanceSubscribeSolStaking 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 BinanceSubscribeSolStaking:
{
"version": "1",
"default": "deny",
"tools": {
"BinanceSubscribeSolStaking": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to BinanceSubscribeSolStaking is blocked until a human approves it. The rest of the server keeps working.
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Subscribe SOL Staking API allows users to stake SOL and receive BNSOL in return. This endpoint requires specifying the amount of SOL to stake, and the response includes the equivalent BNSOL amount and exchange rate for SOL to BNSOL. 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 BinanceSubscribeSolStaking: 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.
BinanceSubscribeSolStaking 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 BinanceSubscribeSolStaking 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 BinanceSubscribeSolStaking. 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.
BinanceSubscribeSolStaking 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.