Get all Plaid accounts
AI agents call get_all_plaid_accounts to retrieve information from Lunch Money 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 Plaid account information without modifying or deleting data. While it is a Read operation, the severity is elevated to medium because Plaid accounts contain sensitive financial information (linked bank accounts, account credentials context, and transaction sources), making unauthorized access or disclosure a moderate risk in a financial context.
From the tool's definition Tool name is 'get_all_plaid_accounts' and description states 'Get all Plaid accounts', indicating a retrieval operation with no data modification.
Attacks that exploit this kind of access
Get all Plaid accounts. It is categorised as a Read tool in the Lunch Money MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Lunch Money MCP Server MCP server in PolicyLayer and add a rule for get_all_plaid_accounts: 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 Lunch Money MCP Server. Nothing to install.
get_all_plaid_accounts 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 get_all_plaid_accounts 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 get_all_plaid_accounts. 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.
get_all_plaid_accounts is provided by the Lunch Money MCP Server MCP server (matiasl13/lunchmoney-mcp). 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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