List CIDs associated with a payment instruction
AI agents call listPaymentInstructionCids to retrieve information from Pinata MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves financial transaction metadata (CIDs linked to payment instructions) but does not execute payments, modify balances, or create financial obligations. However, elevated severity from 'low' to 'medium' is warranted because the data retrieved concerns financial transactions, making it sensitive information that could inform unauthorized actors about payment flows or transaction patterns if disclosed.
From the tool's definition Tool name 'listPaymentInstructionCids' and description 'List CIDs associated with a payment instruction' indicate data retrieval with no modification.
Documented attack patterns abuse exactly the kind of access listPaymentInstructionCids gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Pinata MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for listPaymentInstructionCids:
{
"version": "1",
"default": "deny",
"tools": {
"listPaymentInstructionCids": {}
}
}listPaymentInstructionCids is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List CIDs associated with a payment instruction. It is categorised as a Read tool in the Pinata MCP MCP Server, which means it retrieves data without modifying state.
Register the Pinata MCP server in PolicyLayer and add a rule for listPaymentInstructionCids: 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 Pinata MCP. Nothing to install.
listPaymentInstructionCids 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 listPaymentInstructionCids 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 listPaymentInstructionCids. 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.
listPaymentInstructionCids is provided by the Pinata MCP server (pinatacloud/pinata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Pinata MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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35 Pinata MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.