# CO2 Inference Calculator MCP

> CO2 Inference Calculator MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.12/call, status unknown (last checked 2026-10-12).

Calculates the CO2 emissions produced by running AI inference workloads, given a description of the model or compute task.

## Facts

- Endpoint: POST https://api.m2mcent.com/co2-inference-calculator-mcp/api/process?utm_source=zero.xyz
- Price: $0.12/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/co2-inference-calculator-mcp-d268c7d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UFnwH0zOy0PZKHzPzPbhI

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 co2-inference-calculator-mcp-d268c7d5 -d '<json body>'
```

Example prompt: Can you calculate the estimated CO2 emissions for running inference on a large language model like GPT-4 for 1,000 API calls? I need the carbon footprint broken down per call.

## When to prefer this

Choose this endpoint when you need to quantify the environmental cost of AI inference workloads, especially for sustainability reporting, green AI audits, or comparing model carbon footprints. It is purpose-built for CO2 estimation from inference descriptions rather than general energy calculators or cloud provider carbon tools.

## Known failure modes

- Vague or missing workload description in the 'data' field may produce inaccurate or generic estimates
- Unsupported model names or unknown hardware configs may cause fallback to default assumptions
- Network or payment authorization failure (HTTP 402) if x402 payment is not properly handled
- Malformed JSON input returns a 400 error

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns a computed estimate of CO2 emissions (likely in grams or kilograms of CO2-equivalent) associated with the described AI inference workload, potentially broken down per call or per batch.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/co2-inference-calculator-mcp-d268c7d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)