Free preview of top DeFi yield pool per chain across Solana, Cosmos, Ethereum, Base, and Arbitrum. Returns the single best APY option per chain. Use before buying askew_yields for a full comparison. No payment required.
Part of the Askew x402 server.
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AI agents call askew_yields_preview to retrieve information from Askew x402 without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though askew_yields_preview only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"askew_yields_preview": {}
}
}See the full Askew x402 policy for all 8 tools.
These attack patterns abuse exactly the kind of access askew_yields_preview gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Free preview of top DeFi yield pool per chain across Solana, Cosmos, Ethereum, Base, and Arbitrum. Returns the single best APY option per chain. Use before buying askew_yields for a full comparison. No payment required.. It is categorised as a Read tool in the Askew x402 MCP Server, which means it retrieves data without modifying state.
Register the Askew x402 MCP server in PolicyLayer and add a rule for askew_yields_preview: 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 Askew x402. Nothing to install.
askew_yields_preview 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 askew_yields_preview 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 askew_yields_preview. 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.
askew_yields_preview is provided by the Askew x402 MCP server (https://mcp.askew.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 Askew x402 tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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