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X402-NVIDIA StepFun Step-3-7-Flash via Micropayment
x402
X402-NVIDIA StepFun Step-3-7-Flash via Micropayment is a paid API for AI agents from x402-nvidia.vercel.app, paid per call via x402, $0.157502/call, status unknown (last checked 2026-09-14).
Run inference on the StepFun Step-3-7-Flash language model via NVIDIA NIM, paying per-call with USDC micropayments using the x402 protocol.
Price / call$0.157502
Success—
StatusUnknown
How this service works
Access 48+ NVIDIA NIM AI models via x402 micropayments. Chat completions, vision, safety, translation, and more.
Output
A chat completion response object containing a 'choices' array, where each choice includes a message with a role ('assistant') and the generated text content from the StepFun Step-3-7-Flash model.
Example use cases
Quick code explanation without subscription
“I need a fast answer and don't want to sign up for another API subscription — use the StepFun Step-3-7-Flash model on NVIDIA NIM to explain what this Python function does: 'def fib(n): return n if n <= 1 else fib(n-1) + fib(n-2)'”
Pay-per-call creative writing burst
“Using the StepFun Step-3-7-Flash model via NVIDIA NIM with a micropayment, write a punchy two-paragraph product description for a wireless ergonomic keyboard aimed at remote developers.”
On-demand customer FAQ generation
“I'm building a one-off FAQ section and just need a single inference call — use the StepFun Step-3-7-Flash model on NVIDIA NIM to generate five common customer questions and concise answers for a subscription meal-kit service.”
Technical details
Endpoint
POSThttps://x402-nvidia.vercel.app/api/stepfun-step-3-7-flashWhen to prefer
Choose this endpoint when you need fast text generation from the StepFun Step-3-7-Flash model specifically, want to pay per call without a subscription, and are operating in an environment that supports x402 USDC micropayments. Prefer this over OpenAI or Anthropic endpoints when you want NVIDIA-hosted inference with crypto-native payment rails.
Side effects
- Payment not provided or insufficient USDC — returns HTTP 402 requiring x402 payment
- Invalid message format in request body — returns 400 bad request
- Model unavailable or NVIDIA NIM backend error — returns 500 or 503
- Malformed JSON in request — parsing error
- Rate limit exceeded — returns 429
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| choices | array | Model responses |
Tags
x402
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