Get the current borrow rate and market state for a specific Morpho market. Provide the market's unique key (hex ID) and chain. Returns live borrow APY, supply APY, utilization, and liquidity — the data needed to calculate looping profitability. Use get_morpho_markets to discover market keys first...
Part of the Spectra server.
Free to start. No card required.
AI agents call get_morpho_rate to retrieve information from Spectra 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 get_morpho_rate 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": {
"get_morpho_rate": {}
}
}See the full Spectra policy for all 25 tools.
These attack patterns abuse exactly the kind of access get_morpho_rate 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.
Get the current borrow rate and market state for a specific Morpho market. Provide the market's unique key (hex ID) and chain. Returns live borrow APY, supply APY, utilization, and liquidity — the data needed to calculate looping profitability. Use get_morpho_markets to discover market keys first. Important: Rates are live as-of-query and change continuously based on utilization. When planning a looping strategy, verify rates are still favorable before executing. A profitable spread (fixed yield > borrow rate) can turn negative if borrow rates spike. Use get_looping_strategy with these rates to calculate leveraged yield projections.. It is categorised as a Read tool in the Spectra MCP Server, which means it retrieves data without modifying state.
Register the Spectra MCP server in PolicyLayer and add a rule for get_morpho_rate: 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 Spectra. Nothing to install.
get_morpho_rate 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_morpho_rate 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_morpho_rate. 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_morpho_rate is provided by the Spectra MCP server (spectra-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 25 Spectra tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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