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Xona Agent LLM Inference (NVIDIA NIM / OpenRouter Fallback)
x402
Xona Agent LLM Inference (NVIDIA NIM / OpenRouter Fallback) is a paid API for AI agents from api.xona-agent.com, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-02).
OpenAI-compatible chat completions with automatic provider fallback (NVIDIA NIM → OpenRouter), supporting frontier models like DeepSeek, Kimi, GLM, and Nemotron via pay-per-call x402 pricing.
Price / call$0.015
Success—
StatusUnknown
How this service works
Frontier-model inference with automatic provider fallback (NVIDIA NIM → OpenRouter) for reliability. OpenAI-compatible chat completions; select a model via the body `model` field. Usage-based pricing (input + output tokens at provider cost + 10%); the x402 per-call charge is quoted up front as an upper bound, so set max_tokens to lower it. Also available drop-in at POST /v1/chat/completions (API key + credits, billed exactly per token).
Output
An OpenAI-compatible chat completion response containing the assistant's generated text, along with token usage details (input + output tokens). The response follows the standard ChatCompletion object format.
Example use cases
Example prompt
“Using the deepseek-v4-pro model, answer this question with up to 512 output tokens: 'Explain the difference between gradient descent and stochastic gradient descent in simple terms.'”
Technical details
Endpoint
POSThttps://api.xona-agent.com/llm/nim?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need frontier model inference (DeepSeek-v4-pro, Nemotron-3-ultra-550b, Kimi-k2.6, GLM-5.1) with high reliability via automatic provider fallback, and want pay-per-call x402 micropayment pricing instead of a subscription. Ideal for agents that need sporadic, usage-based LLM calls without managing separate provider API keys.
Side effects
- Model not available — if NVIDIA NIM is unavailable and OpenRouter fallback also fails, returns an error
- max_tokens exceeded — request rejected if max_tokens > 8192
- Invalid model ID — returns error if model field does not match one of the four supported model IDs
- Payment failure — x402 charge not resolved, request blocked
- Rate limiting — too many concurrent requests may be throttled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Model id (usage-based price: input + output tokens at provider cost + 10%). One of: kimi-k2.6, glm-5.1, nemotron-3-ultra-550b, deepseek-v4-pro |
| prompt | string | The user prompt (or use messages) |
| messages | array | Optional OpenAI-style messages array (overrides prompt/system_prompt) |
| max_tokens | number | Cap on output tokens (max 8192). Lowers the up-front per-call charge — unset quotes the full cap as an upper bound. |
| temperature | number | Optional sampling temperature |
| system_prompt | string | Optional system prompt |
Tags
x402
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