AI agents call carbon_vehicle_emissions to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
api_key | string | — | |
distance_unit | string | — | |
distance_value | number | Yes | |
vehicle_model_id | string | Yes |
Parameters from the server's own tool schema.
This tool queries or calculates environmental metrics without creating, modifying, deleting, or executing any external operations. It is a straightforward data retrieval and computation function that returns information to the user. No side effects or irreversible actions are implied.
From the tool's definition Tool performs estimation/calculation of emissions data based on journey parameters. The description indicates retrieval and computation of information ('Estimate carbon emissions') with no modification of external state or data.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
Estimate carbon emissions for a vehicle journey. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
carbon_vehicle_emissions accepts 4 parameters: api_key, distance_unit, distance_value, vehicle_model_id. Required: distance_value, vehicle_model_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for carbon_vehicle_emissions: 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 UnClick. Nothing to install.
carbon_vehicle_emissions 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 carbon_vehicle_emissions 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 carbon_vehicle_emissions. 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.
carbon_vehicle_emissions is provided by the UnClick MCP server (@unclick/mcp-server). 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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