# X402-NVIDIA Ising Calibration via NVIDIA NIM

> X402-NVIDIA Ising Calibration via NVIDIA NIM is a paid API for AI agents from x402-nvidia.vercel.app, paid per call via x402, $0.192562/call, status unknown (last checked 2026-09-14).

Runs an Ising model calibration job through NVIDIA NIM AI infrastructure, paid via x402 micropayments

## Facts

- Endpoint: POST https://x402-nvidia.vercel.app/api/ising-calibration
- Price: $0.192562/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-nvidia-ising-calibration-via-nvidia-nim-ab4f2648
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MQd2beLRo1Wfm33q2E2Nc

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 x402-nvidia-ising-calibration-via-nvidia-nim-ab4f2648 -d '<json body>'
```

Example prompt: Run an Ising model calibration using NVIDIA NIM and return the calibrated results — I want to submit my model choices and get back the assistant's calibrated response.

## When to prefer this

Choose this endpoint when you need to run Ising model calibration specifically through NVIDIA NIM's infrastructure and are willing to pay per-call via x402 USDC micropayments. Prefer this over generic LLM endpoints when the task is physics-inspired or combinatorial optimization calibration rather than open-ended chat or content generation.

## Known failure modes

- Payment failure: x402 micropayment of $0.192562 USDC not completed, resulting in 402 Payment Required
- Invalid input schema: missing or malformed choices array returns 400 Bad Request
- NVIDIA NIM backend unavailable or rate-limited returns 503 or 429
- Malformed request body causes schema validation error
- Timeout if calibration job exceeds server-side limits

## How this service works

Access 48+ NVIDIA NIM AI models via x402 micropayments. Chat completions, vision, safety, translation, and more.

## Output

Returns a choices array containing assistant messages with the calibrated Ising model output, following the standard chat completions response format from NVIDIA NIM.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "choices": [
   {
    "message": {
     "role": "assistant",
     "content": "Hello!"
    }
   }
  ]
 },
 "properties": {
  "choices": {
   "type": "array",
   "description": "Model responses"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-nvidia-ising-calibration-via-nvidia-nim-ab4f2648/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-nvidia.vercel.app](https://www.zero.xyz/host/x402-nvidia.vercel.app/llms.txt)