Real-time cryptocurrency prices for BTC, ETH, SOL, and other major coins. Data sourced from CoinGecko. Returns current price in USD, 24h change percentage, and market cap. (Paid via x402: $0.001 USDC per call on Base, settled automatically.)
AI agents call navi_crypto_prices to retrieve information from Navi X402 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
coins | string | — | Comma-separated list of coin IDs (e.g. bitcoin,ethereum,solana). Defaults to bitcoin,ethereum,solana if not provided. |
Parameters from the server's own tool schema.
This is a straightforward data retrieval tool that queries external price feeds and returns market information. While the server enables payments, the tool itself does not move money or commit financial obligations—it only reads and returns public cryptocurrency price data. The payment occurs separately as infrastructure overhead, not as an action of the tool.
From the tool's definition Tool retrieves real-time cryptocurrency price data from CoinGecko: 'returns current price in USD, 24h change percentage, and market cap.' No modifications, deletions, or side effects.
Attacks that exploit this kind of access
Real-time cryptocurrency prices for BTC, ETH, SOL, and other major coins. Data sourced from CoinGecko. Returns current price in USD, 24h change percentage, and market cap. (Paid via x402: $0.001 USDC per call on Base, settled automatically.). It is categorised as a Read tool in the Navi X402 MCP Server, which means it retrieves data without modifying state.
navi_crypto_prices accepts 1 parameter: coins. The full parameter table on this page comes from the server's own tool schema.
Register the Navi X402 MCP server in PolicyLayer and add a rule for navi_crypto_prices: 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 Navi X402. Nothing to install.
navi_crypto_prices 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 navi_crypto_prices 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 navi_crypto_prices. 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.
navi_crypto_prices is provided by the Navi X402 MCP server (navi-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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