Get real-time crypto sentiment analysis for a specific coin. Price: $0.01 USDC per query. Analyzes social media, news, and market data to produce sentiment scores. Without X402_PRIVATE_KEY, only the free test endpoint is available. Returns: sentiment score (-1 to 1), confidence, sources, and anal...
AI agents call x402_sentiment to retrieve information from x402 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The x402_sentiment tool retrieves and analyzes existing data (social media, news, market data) to produce sentiment information. It has no side effects on any data—it does not create, modify, delete, or execute code. The automatic micropayment is infrastructure overhead, not an action the tool takes. Classification as Read is appropriate for query/analysis tools that return information without modifying state.
From the tool's definition Tool description states it "Get[s] real-time crypto sentiment analysis" and "Analyzes social media, news, and market data to produce sentiment scores." Returns "sentiment score (-1 to 1), confidence, sources, and analysis." This is pure data retrieval with no…
Attacks that exploit this kind of access
Get real-time crypto sentiment analysis for a specific coin. Price: $0.01 USDC per query. Analyzes social media, news, and market data to produce sentiment scores. Without X402_PRIVATE_KEY, only the free test endpoint is available. Returns: sentiment score (-1 to 1), confidence, sources, and analysis. It is categorised as a Read tool in the x402 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the x402 MCP Server MCP server in PolicyLayer and add a rule for x402_sentiment: 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 MCP Server. Nothing to install.
x402_sentiment 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 x402_sentiment 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 x402_sentiment. 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.
x402_sentiment is provided by the x402 MCP Server MCP server (jameswilliamwisdom/x402-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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