# Halowerk Copper CO2 Calculator

> Halowerk Copper CO2 Calculator is a paid API for AI agents from material.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

Calculates the CO2 emissions associated with copper material production or processing

## Facts

- Endpoint: POST https://material.halowerk.com/copper-co2?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-copper-co2-calculator-d2d5d879
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5rHLMZ8sN_UK73GBCujLj

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 halowerk-copper-co2-calculator-d2d5d879 -d '<json body>'
```

Example prompt: Can you calculate the CO2 emissions for 500 kg of copper material using the Halowerk copper CO2 calculator?

## When to prefer this

Use this endpoint when you need a quick, pay-per-use CO2 emissions estimate specifically for copper material quantities. It is particularly suited for supply chain carbon accounting, sustainability reporting, or procurement workflows where copper is a key input material and a per-call pricing model is preferred over a subscription.

## Known failure modes

- Missing or invalid copper quantity input returns a 400 validation error
- Unsupported unit of measurement may cause computation failure
- Network timeout or service unavailability returns 5xx error
- Zero or negative input values may be rejected
- Payment of 0.002 USDC required per call; insufficient funds results in 402 Payment Required

## How this service works

Multiplies the copper quantity by literature emission factors for the chosen secondary route and for primary cathode production, and reports the difference as low, typical and high. The factors are published life cycle averages and are stated in the response; they are not a certified product carbon footprint and are not a valid basis for a carbon credit, a customer declaration or an audited claim.

## Output

Returns a computed CO2 emissions value (likely in kg CO2 or CO2-equivalent) associated with the specified quantity or specification of copper material, reflecting the carbon intensity of copper production or processing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "route": {
   "enum": [
    "secondary_remelt",
    "secondary_refined",
    "cable_granulation"
   ],
   "type": "string",
   "default": "secondary_refined"
  },
  "copper_kg": {
   "type": "number",
   "maximum": 10000000,
   "minimum": 0.01
  },
  "transport_km": {
   "type": "number",
   "default": 0,
   "maximum": 40000,
   "minimum": 0
  },
  "primary_factor_kg_co2e_per_kg": {
   "type": "number",
   "maximum": 50,
   "minimum": 0,
   "description": "Overrides the primary cathode factor."
  },
  "secondary_factor_kg_co2e_per_kg": {
   "type": "number",
   "maximum": 50,
   "minimum": 0,
   "description": "Overrides the secondary route factor."
  },
  "transport_factor_kg_co2e_per_tkm": {
   "type": "number",
   "maximum": 5,
   "minimum": 0,
   "description": "Own transport factor per tonne-kilometre. Without it transport stays excluded."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-copper-co2-calculator-d2d5d879/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from material.halowerk.com](https://www.zero.xyz/host/material.halowerk.com/llms.txt)