dolares-historico
Devuelve las cotizaciones de todas las casas de cambio.
This record as markdown: /tools/0xkoller-mcp-argentina-datos/dolares-historico.md
What dolares-historico does on MCP Argentina Datos
AI agents call dolares-historico to retrieve information from MCP Argentina Datos without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why dolares-historico is rated Low
This tool queries and retrieves historical dollar exchange rate information from Argentina's exchange houses. It performs a read-only data retrieval operation with no side effects, no code execution, no data modification, and no financial transactions.
From the tool's definition Tool name 'dolares-historico' and description 'Devuelve las cotizaciones de todas las casas de cambio' (Returns exchange rates from all exchange houses) indicate retrieval of historical exchange rate data without modification or execution capabilities.
Attacks that exploit this kind of access
The rule that runs dolares-historico safely
PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Argentina Datos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For dolares-historico, this is the rule to start with:
dolares-historico is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect MCP Argentina Datos, apply this rule, and every dolares-historico call is checked against it from then on.
Questions about dolares-historico
Devuelve las cotizaciones de todas las casas de cambio. It is categorised as a Read tool in the MCP Argentina Datos MCP Server, which means it retrieves data without modifying state.
Register the MCP Argentina Datos MCP server in PolicyLayer and add a rule for dolares-historico: 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 Argentina Datos. Nothing to install.
dolares-historico 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 dolares-historico 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 dolares-historico. 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.
dolares-historico is provided by the MCP Argentina Datos MCP server (0xkoller/mcp-argentina-datos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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