Free 16-field MCP subset of the live crypto market snapshot: price, funding, OI, buy/sell ratio, fear/greed. Paid REST /data returns the full production snapshot. Supports BTC ETH SOL XRP BNB DOGE ADA AVAX LINK ATOM DOT ARB SUI OP LTC AMP ZEC.
AI agents call marketSnapshot 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.
marketSnapshot is a passive data retrieval tool. It queries and returns market information across multiple exchanges without side effects, reversible writes, code execution, deletions, or financial transactions. The free subset nature and contrast with paid REST endpoints confirms this is a read-only market data interface.
From the tool's definition Tool retrieves live market snapshot data (price, funding, OI, buy/sell ratio, fear/greed) with no ability to modify, delete, or execute state-changing operations.
Attacks that exploit this kind of access
Free 16-field MCP subset of the live crypto market snapshot: price, funding, OI, buy/sell ratio, fear/greed. Paid REST /data returns the full production snapshot. Supports BTC ETH SOL XRP BNB DOGE ADA AVAX LINK ATOM DOT ARB SUI OP LTC AMP ZEC. 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 marketSnapshot: 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.
marketSnapshot 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 marketSnapshot 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 marketSnapshot. 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.
marketSnapshot 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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