Fetch assets from a transaction. WARNING: This shows assets even if already spent. Use verificar_existencia_transaccion for accurate verification.
AI agents call obtener_assets_transaccion to retrieve information from MIST Cash MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves transaction asset information from the MIST.cash privacy-preserving payment protocol. While it performs a read operation, the severity is elevated to 'medium' rather than 'low' because: (1) it operates within a financial system handling sensitive payment data (ETH, USDC, USDT, DAI tokens), (2) the warning notes it returns misleading information about asset spending status, which could lead an…
From the tool's definition Tool name 'obtener_assets_transaccion' (fetch/obtain assets from transaction) and description 'Fetch assets from a transaction' indicates data retrieval with no modification or deletion.
Attacks that exploit this kind of access
Fetch assets from a transaction. WARNING: This shows assets even if already spent. Use verificar_existencia_transaccion for accurate verification. It is categorised as a Read tool in the MIST Cash MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MIST Cash MCP Server MCP server in PolicyLayer and add a rule for obtener_assets_transaccion: 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 MIST Cash MCP Server. Nothing to install.
obtener_assets_transaccion 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 obtener_assets_transaccion 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 obtener_assets_transaccion. 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.
obtener_assets_transaccion is provided by the MIST Cash MCP Server MCP server (joadataarg/mcp-mistcash). 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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