Get best V4 swap data
AI agents call api_vestige_get_best_v4_swap_data 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 swap data (likely optimal routing/pricing information for DEX swaps) without executing transactions, modifying state, or moving funds. It is a read-only query operation. The severity is low because retrieving swap data has minimal blast radius - it cannot directly cause financial loss or irreversible state changes, though it could inform downstream decisions by an agent.
From the tool's definition Tool name and description indicate data retrieval: 'get best V4 swap data' - the 'get' verb and 'data' noun suggest querying swap information without modification.
Documented attack patterns abuse exactly the kind of access api_vestige_get_best_v4_swap_data 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 api_vestige_get_best_v4_swap_data:
{
"version": "1",
"default": "deny",
"tools": {
"api_vestige_get_best_v4_swap_data": {}
}
} api_vestige_get_best_v4_swap_data is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get best V4 swap data. 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 api_vestige_get_best_v4_swap_data: 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.
api_vestige_get_best_v4_swap_data 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 api_vestige_get_best_v4_swap_data 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 api_vestige_get_best_v4_swap_data. 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.
api_vestige_get_best_v4_swap_data 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.