# Suverse Vehicle Emissions Lookup

> Suverse Vehicle Emissions Lookup is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns EPA emissions data for a vehicle by FuelEconomy.gov ID, including emission score, SmartWay score, sales area, and applicable federal/California emissions standard text.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-veh-emissions
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-vehicle-emissions-lookup-b0c68748
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QcNYRnqj3bwUAKsnURTvC

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability suverse-vehicle-emissions-lookup-b0c68748 -d '<json body>'
```

Example prompt: Can you pull the EPA emissions data for the vehicle with FuelEconomy.gov ID 47331 — I need the emission score, SmartWay score, and whether it meets the federal or California standard?

## When to prefer this

Choose this endpoint when you need structured EPA emissions compliance data — emission scores, SmartWay ratings, and federal/California standard classifications — for a specific vehicle identified by its FuelEconomy.gov ID, without needing an API key. Ideal for agents building vehicle comparison tools, fleet compliance checkers, or environmental research workflows that require authoritative US EPA data.

## Known failure modes

- Invalid or non-existent FuelEconomy.gov ID returns an error or empty result
- Upstream FuelEconomy.gov API unavailable causes request failure
- Malformed request body returns a 400-level error
- Payment not fulfilled results in 402 response blocking data access

## How this service works

EPA emissions standards for a vehicle by FuelEconomy.gov ID: emission score, SmartWay score, sales area, federal/California standard text. Keyless US EPA/DOE FuelEconomy.gov. For agents assessing vehicle emissions.

## Output

Returns structured EPA emissions data for the queried vehicle, including: numeric emission score, SmartWay score, applicable sales area, and descriptive text for both the federal emissions standard and the California emissions standard the vehicle complies with.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/suverse-vehicle-emissions-lookup-b0c68748/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)