Low Risk

getFileById

Retrieve detailed information about a specific file stored on Pinata by its ID

How to control getFileById ↓

What getFileById does on Pinata MCP

AI agents call getFileById 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.

Low Risk

Why getFileById needs a policy

This tool queries file metadata by ID without side effects. While Pinata handles IPFS storage and the sibling tools show the server manages file operations including uploads and deletions, this specific tool only retrieves information. The blast radius of misuse is minimal—an attacker could enumerate files they have access to, but cannot modify, delete, or execute code.

From the tool's definition Tool description states 'Retrieve detailed information about a specific file' with no mention of modification, deletion, or execution. The verb 'retrieve' and the read-only nature of fetching file metadata are characteristic of Read category operations.

Documented attack patterns abuse exactly the kind of access getFileById gives an agent:

How to control getFileById

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 getFileById:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "getFileById": {}
  }
}

getFileById is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Pinata MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about getFileById

What does the getFileById tool do? +

Retrieve detailed information about a specific file stored on Pinata by its ID. It is categorised as a Read tool in the Pinata MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on getFileById? +

Register the Pinata MCP server in PolicyLayer and add a rule for getFileById: 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.

What risk level is getFileById? +

getFileById is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit getFileById? +

Yes. Add a rate_limit block to the getFileById 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.

How do I block getFileById completely? +

Set action: deny in the PolicyLayer policy for getFileById. 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.

What MCP server provides getFileById? +

getFileById 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.

Enforce policy on every Pinata MCP tool call.

Start from Pinata MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

35 Pinata MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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