Returns an aggregated overview of DeFi lending market conditions across Aave v3, Compound V3, Fluid, Morpho Blue, and Spark on Ethereum, Arbitrum, and Base. Use this for a macro view of the lending landscape before calling lending.rates.query for per-market detail — it surfaces cross-protocol tot...
Part of the Syenite server.
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AI agents invoke lending.market.overview to trigger processes or run actions in Syenite. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
lending.market.overview can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"lending.market.overview": {
"limits": [
{
"counter": "lending.market.overview_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Syenite policy for all 46 tools.
These attack patterns abuse exactly the kind of access lending.market.overview gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Returns an aggregated overview of DeFi lending market conditions across Aave v3, Compound V3, Fluid, Morpho Blue, and Spark on Ethereum, Arbitrum, and Base. Use this for a macro view of the lending landscape before calling lending.rates.query for per-market detail — it surfaces cross-protocol totals for supply, borrow, utilization, and available liquidity alongside borrow and supply APY ranges per protocol. Pass collateral (e.g. "ETH", "BTC", or "all") to scope the market scan; optionally pass chain to restrict to one network. Returns cross-protocol summary (lowest borrow APY, highest supply APY, total available liquidity) and per-protocol breakdowns including individual market rows; does not execute any transaction.. It is categorised as a Execute tool in the Syenite MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Syenite MCP server in PolicyLayer and add a rule for lending.market.overview: 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 Syenite. Nothing to install.
lending.market.overview is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the lending.market.overview 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 lending.market.overview. 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.
lending.market.overview is provided by the Syenite MCP server (@syenite/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 46 Syenite tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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