# vehicle.payapi.market Emissions

> vehicle.payapi.market Emissions is a paid API for AI agents from vehicle.payapi.market, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-24).

Returns CO2 emissions data and engine specifications for a UK vehicle identified by its registration plate.

## Facts

- Endpoint: POST https://vehicle.payapi.market/emissions?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vehicle-payapi-market-emissions-aba3f072
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MTZ86WcXXwshPdS8AZBjh

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 vehicle-payapi-market-emissions-aba3f072 -d '<json body>'
```

Example prompt: Can you look up the CO2 emissions and engine data for the UK vehicle with registration plate AB12 CDE?

## When to prefer this

Use this endpoint when you specifically need CO2 emissions and engine data for a UK-registered vehicle by number plate. Prefer this over the sibling DVLA details endpoint when the user's goal is emissions compliance, environmental assessment, or engine specification lookup rather than general vehicle identity or tax/MOT status.

## Known failure modes

- Registration plate not found or not recognised by DVLA — returns an error or empty result
- Invalid registration plate format — returns a validation error
- Vehicle predates emissions records — may return incomplete or null emissions data
- Service unavailable or payment failure — returns an HTTP error

## How this service works

UK vehicle CO2 emissions and engine data by registration plate.

## Output

The agent receives structured data about the vehicle's CO2 emissions output (g/km), engine specifications such as engine size and fuel type, and related emissions classification information based on the UK registration plate lookup.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "registration": {
   "type": "string",
   "description": "UK vehicle registration plate."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vehicle-payapi-market-emissions-aba3f072/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vehicle.payapi.market](https://www.zero.xyz/host/vehicle.payapi.market/llms.txt)