Get the current Bitcoin (BTC) balance and its USD value for the logged-in Cash App account.
AI agents call cashapp_get_bitcoin_balance to retrieve information from Mcp Cashapp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Although this server enables financial operations (Cash App payments), this specific tool only reads and returns balance information. However, the sensitivity is elevated to medium rather than low because: (1) it reveals real financial account data (cryptocurrency holdings and their monetary value), which could inform social engineering or account targeting by a compromised agent, and (2) the broader server context…
From the tool's definition Tool description states "Get the current Bitcoin (BTC) balance and its USD value" — a retrieval operation with no side effects. The tool queries existing data without modifying, deleting, or executing transactions.
Attacks that exploit this kind of access
Get the current Bitcoin (BTC) balance and its USD value for the logged-in Cash App account. It is categorised as a Read tool in the Mcp Cashapp MCP Server, which means it retrieves data without modifying state.
Register the Mcp Cashapp MCP server in PolicyLayer and add a rule for cashapp_get_bitcoin_balance: 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 Cashapp. Nothing to install.
cashapp_get_bitcoin_balance 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 cashapp_get_bitcoin_balance 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 cashapp_get_bitcoin_balance. 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.
cashapp_get_bitcoin_balance is provided by the Mcp Cashapp MCP server (markswendsen-code/mcp-cashapp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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