List the network/gas fees Transak charges (or estimates) per crypto+network combination. Useful for showing buyers the all-in landed cost or for choosing the cheapest network when an asset is multi-chain (e.g. USDC on Polygon vs Ethereum). Public endpoint.
AI agents call list_network_fees to retrieve information from Mcp Afip without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and returns fee data without creating, modifying, executing, deleting, or committing financial transactions. It retrieves public pricing/fee information to inform decisions, but does not execute payments or transfer funds itself. The mention of crypto networks and Transak (a fiat-to-crypto gateway) is contextual; the tool itself only reads fee tables.
From the tool's definition Tool description states 'List the network/gas fees' and 'Public endpoint' — this is a read-only retrieval of fee information with no side effects.
Documented attack patterns abuse exactly the kind of access list_network_fees gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Afip, and nothing reaches the server without passing your rules. This is the rule we recommend for list_network_fees:
{
"version": "1",
"default": "deny",
"tools": {
"list_network_fees": {}
}
}list_network_fees is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List the network/gas fees Transak charges (or estimates) per crypto+network combination. Useful for showing buyers the all-in landed cost or for choosing the cheapest network when an asset is multi-chain (e.g. USDC on Polygon vs Ethereum). Public endpoint. It is categorised as a Read tool in the Mcp Afip MCP Server, which means it retrieves data without modifying state.
Register the Mcp Afip MCP server in PolicyLayer and add a rule for list_network_fees: 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 Afip. Nothing to install.
list_network_fees 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 list_network_fees 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 list_network_fees. 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.
list_network_fees is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Afip, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1300 Mcp Afip tools catalogued and risk-classified — across an index of 43,000+ MCP servers.