get_yield_chart
GET /yields/chart/{pool}
This record as markdown: /tools/0xreisearch-crypto-mcp-beta/get-yield-chart.md
What get_yield_chart does on REI Crypto MCP Server
AI agents call get_yield_chart to retrieve information from REI Crypto MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_yield_chart is rated Low
This tool retrieves yield chart data from DeFi protocol pools. It is a query operation with no capability to modify data, execute code, or trigger external actions. The risk is minimal as it only surfaces financial information that is already public blockchain data. Classified as Read with low severity due to the informational nature of the operation.
From the tool's definition Tool name 'get_yield_chart' and description 'GET /yields/chart/{pool}' indicate a read-only retrieval operation that fetches yield data for a specified pool.
Attacks that exploit this kind of access
The rule that runs get_yield_chart safely
PolicyLayer is an MCP gateway: it sits between your AI agents and REI Crypto MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_yield_chart, this is the rule to start with:
get_yield_chart is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect REI Crypto MCP Server, apply this rule, and every get_yield_chart call is checked against it from then on.
Questions about get_yield_chart
GET /yields/chart/{pool}. It is categorised as a Read tool in the REI Crypto MCP Server MCP Server, which means it retrieves data without modifying state.
Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for get_yield_chart: 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 REI Crypto MCP Server. Nothing to install.
get_yield_chart 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_yield_chart 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_yield_chart. 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_yield_chart is provided by the REI Crypto MCP Server MCP server (0xreisearch/crypto-mcp-beta). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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