Fetch a single-source price directly from a Chainlink on-chain
AI agents call get_chainlink_onchain to retrieve information from OracleForge MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves price data from an on-chain oracle (Chainlink) without creating, modifying, deleting, or executing any operations. It is a straightforward query that reads publicly available blockchain data. The low severity reflects that misuse results only in information disclosure, with no financial transactions, code execution, or data modification possible.
From the tool's definition Tool name 'get_chainlink_onchain' and description 'Fetch a single-source price directly from a Chainlink on-chain' indicate a data retrieval operation with no modification or execution of code.
Attacks that exploit this kind of access
Fetch a single-source price directly from a Chainlink on-chain. It is categorised as a Read tool in the OracleForge MCP MCP Server, which means it retrieves data without modifying state.
Register the OracleForge MCP server in PolicyLayer and add a rule for get_chainlink_onchain: 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 OracleForge MCP. Nothing to install.
get_chainlink_onchain 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_chainlink_onchain 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_chainlink_onchain. 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_chainlink_onchain is provided by the OracleForge MCP server (maxiaworld/oracleforge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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