# X402-NVIDIA NIM AI Models API

> X402-NVIDIA NIM AI Models API is a paid API for AI agents from x402-nvidia.vercel.app, paid per call via x402, $0.110057/call, status unknown (last checked 2026-09-13).

Access 48+ NVIDIA NIM AI models (chat, vision, safety, translation) via x402 micropayments at $0.11 USDC per call

## Facts

- Endpoint: POST https://x402-nvidia.vercel.app/api/bnr
- Price: $0.110057/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-nvidia-nim-ai-models-api-a0521529
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jlZe8rD-dhDSN0qMx_ucv

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-nim-ai-models-api-a0521529 -d '<json body>'
```

Example prompt: Use the NVIDIA NIM API to generate a chat completion response for the message 'Explain quantum entanglement in simple terms' — pay via x402 micropayment in USDC.

## When to prefer this

Choose this endpoint when you need on-demand access to NVIDIA NIM AI models (including vision, safety, and translation) without a long-term API subscription, especially in agentic workflows where per-call x402 USDC micropayments are preferred over API keys or OAuth. Ideal for cost-controlled, pay-as-you-go AI inference using NVIDIA's GPU-optimized models.

## Known failure modes

- Insufficient USDC balance for x402 micropayment — payment fails before inference
- Invalid or unsupported model name returns error
- Malformed message/prompt schema causes 400 bad request
- Network timeout on Vercel serverless function for long inference requests
- Rate limiting if too many requests fired in rapid succession

## How this service works

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

## Output

A JSON object with a choices array containing the model's response message, including role ('assistant') and content fields, matching the OpenAI-compatible chat completions format.

## 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-nim-ai-models-api-a0521529/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)