Get current prices for one or more cryptocurrencies.
AI agents call crypto_price to retrieve information from Mcp Everything without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves cryptocurrency price information without creating, modifying, deleting, or executing any operations. It is a simple data query with no side effects, making it a Read operation with low severity. The low severity reflects that price data is public and non-sensitive, and misuse would not cause harm beyond potentially wasting API calls.
From the tool's definition Tool name is 'crypto_price' and description states 'Get current prices for one or more cryptocurrencies.' The verb 'Get' and the read-only nature of querying current price data indicate no data modification or external state changes.
Attacks that exploit this kind of access
Get current prices for one or more cryptocurrencies. It is categorised as a Read tool in the Mcp Everything MCP Server, which means it retrieves data without modifying state.
Register the Mcp Everything MCP server in PolicyLayer and add a rule for crypto_price: 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 Mcp Everything. Nothing to install.
crypto_price 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 crypto_price 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 crypto_price. 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.
crypto_price is provided by the Mcp Everything MCP server (wellix260/mcp-everything). 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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