Retrieves the current spot price and 24-hour change for any cryptocurrency using the CoinGecko public API. Returns price, percentage change, and a timestamp. This is a lightweight variant of crypto_price that omits extended market data (market cap, volume) — use it when only the raw price and 24h...
Part of the Inferventis — Financial Data, News & Web MCP server.
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AI agents call crypto_price_lite to retrieve information from Inferventis — Financial Data, News & Web MCP without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though crypto_price_lite only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"crypto_price_lite": {}
}
}See the full Inferventis — Financial Data, News & Web MCP policy for all 20 tools.
These attack patterns abuse exactly the kind of access crypto_price_lite gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Retrieves the current spot price and 24-hour change for any cryptocurrency using the CoinGecko public API. Returns price, percentage change, and a timestamp. This is a lightweight variant of crypto_price that omits extended market data (market cap, volume) — use it when only the raw price and 24h direction are needed. Prefer crypto_price when the agent also needs market capitalisation, trading volume, or richer structured output. Use crypto_fx_rates when converting a specific amount between a cryptocurrency and fiat (e.g. 'convert 0.5 BTC to USD') rather than looking up a spot price. Supports all major coins including BTC, ETH, SOL, XRP, ADA, DOGE, and 10,000+ CoinGecko-listed assets. Accepts ticker symbols (BTC, ETH) or full names (bitcoin, ethereum). Target currency defaults to USD but accepts any ISO 4217 code.. It is categorised as a Read tool in the Inferventis — Financial Data, News & Web MCP MCP Server, which means it retrieves data without modifying state.
Register the Inferventis — Financial Data, News & Web MCP server in PolicyLayer and add a rule for crypto_price_lite: 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 Inferventis — Financial Data, News & Web MCP. Nothing to install.
crypto_price_lite 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_lite 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_lite. 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_lite is provided by the Inferventis — Financial Data, News & Web MCP server (https://mcp-server-295985738387.europe-west1.run.app/mcp-pay?src=registry). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 20 Inferventis — Financial Data, News & Web MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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