Gets a real on-chain quote from a DEX Router (Uniswap V2 on Ethereum Mainnet) via Web3.
AI agents call get_dex_quote to retrieve information from Crypto Multi-MCP Hub without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves current market pricing information from Uniswap V2 via Web3 queries—a read-only operation with no side effects. However, severity is elevated to medium rather than low because: (1) the quote data directly informs financial decisions and trading actions on this crypto operations platform, (2) if quote retrieval were compromised or manipulated, an agent could execute trades at incorrect prices, and…
From the tool's definition Tool name 'get_dex_quote' and description 'Gets a real on-chain quote' indicate retrieval of pricing data from a DEX Router without modifying state or executing trades.
Documented attack patterns abuse exactly the kind of access get_dex_quote gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Crypto Multi-MCP Hub, and nothing reaches the server without passing your rules. This is the rule we recommend for get_dex_quote:
{
"version": "1",
"default": "deny",
"tools": {
"get_dex_quote": {}
}
}get_dex_quote 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.
Gets a real on-chain quote from a DEX Router (Uniswap V2 on Ethereum Mainnet) via Web3. It is categorised as a Read tool in the Crypto Multi-MCP Hub MCP Server, which means it retrieves data without modifying state.
Register the Crypto Multi-MCP Hub MCP server in PolicyLayer and add a rule for get_dex_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 Crypto Multi-MCP Hub. Nothing to install.
get_dex_quote 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 get_dex_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 get_dex_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.
get_dex_quote is provided by the Crypto Multi-MCP Hub MCP server (pellenybe/crypto-mcp-server---by-corax-colab). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Crypto Multi-MCP Hub, 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.
48 Crypto Multi-MCP Hub tools catalogued and risk-classified — across an index of 43,000+ MCP servers.