vehicle.vin-decode
Decode a 17-character VIN via NHTSA vPIC. Returns make, model, model year, body class, engine, transmission, fuel type, manufacturer, plant info.
This record as markdown: /tools/io-github-2s-io-mcp/vehicle.vin-decode.md
What vehicle.vin-decode does on Mcp
AI agents call vehicle.vin-decode to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why vehicle.vin-decode is rated Low
This tool retrieves and decodes publicly available vehicle identification information from the NHTSA database. It is a straightforward lookup operation that queries a public API and returns informational data without side effects, modification, or execution of arbitrary code. The blast radius of misuse is minimal—an attacker could only obtain publicly available vehicle specifications.
From the tool's definition Tool performs VIN decoding via NHTSA vPIC which returns vehicle make, model, year, body class, engine, transmission, fuel type, manufacturer, and plant info.
Attacks that exploit this kind of access
The rule that runs vehicle.vin-decode safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vehicle.vin-decode, this is the rule to start with:
vehicle.vin-decode is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every vehicle.vin-decode call is checked against it from then on.
Questions about vehicle.vin-decode
Decode a 17-character VIN via NHTSA vPIC. Returns make, model, model year, body class, engine, transmission, fuel type, manufacturer, plant info. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for vehicle.vin-decode: 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. Nothing to install.
vehicle.vin-decode 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 vehicle.vin-decode 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 vehicle.vin-decode. 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.
vehicle.vin-decode is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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