Any-token CoinGecko-backed market coverage via /data/light: price, momentum, rank, liquidity and exchange context, and risk flags. Defaults to brief=off for low latency; set brief=full for a Kimi brief. Supports listed CoinGecko symbols beyond the fixed Pillar token list, e.g. WCT.
AI agents call marketLight to retrieve information from X402 crypto market structure without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool fetches and returns market data (price, momentum, rank, liquidity, exchange context, risk flags) from CoinGecko. It is a read-only data retrieval operation with no side effects, modifications, or financial transactions. The pay-per-call mechanism is a billing detail of the server infrastructure, not an action the tool itself performs.
From the tool's definition price, momentum, rank, liquidity and exchange context, and risk flags — retrieves market data from CoinGecko
Attacks that exploit this kind of access
Any-token CoinGecko-backed market coverage via /data/light: price, momentum, rank, liquidity and exchange context, and risk flags. Defaults to brief=off for low latency; set brief=full for a Kimi brief. Supports listed CoinGecko symbols beyond the fixed Pillar token list, e.g. WCT. It is categorised as a Read tool in the X402 crypto market structure MCP Server, which means it retrieves data without modifying state.
Register the X402 crypto market structure MCP server in PolicyLayer and add a rule for marketLight: 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 X402 crypto market structure. Nothing to install.
marketLight 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 marketLight 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 marketLight. 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.
marketLight is provided by the X402 crypto market structure MCP server (tunedforai/x402-mcp). 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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