Paginated account list for this creditor (no PII fields).
AI agents call list_accounts_basic to retrieve information from FixPayment without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries account data without modifying, deleting, or executing operations. The pagination pattern and emphasis on excluding PII suggest it is designed as a safe information-retrieval endpoint. No financial transactions, destructive operations, or code execution are involved.
From the tool's definition Tool name 'list_accounts_basic' and description 'Paginated account list for this creditor (no PII fields)' indicate a retrieval operation. The explicit exclusion of PII fields further confirms read-only intent.
Attacks that exploit this kind of access
Paginated account list for this creditor (no PII fields). It is categorised as a Read tool in the FixPayment MCP Server, which means it retrieves data without modifying state.
Register the FixPayment MCP server in PolicyLayer and add a rule for list_accounts_basic: 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 FixPayment. Nothing to install.
list_accounts_basic 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_accounts_basic 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_accounts_basic. 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_accounts_basic is provided by the FixPayment MCP server (prmail/fixpayment_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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