# x402factory Solana GPT Wrapper (NZGVSXRC6HMKB8FWDA)

> x402factory Solana GPT Wrapper (NZGVSXRC6HMKB8FWDA) is a paid API for AI agents from x402factory.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Provides pay-per-use GPT inference via x402 Solana micropayments, with dynamic pricing based on token counts and model selection, plus optional custom agent creation and listing.

## Facts

- Endpoint: POST https://x402factory.ai/solana/llm/gpt/NZGVSXRC6HMKB8FWDA
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402factory-ai-solanallmgptnzgvsxrc6hmkb8fwda-720bd46f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ggglhG5fvk37JecYd7_56

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 x402factory-ai-solanallmgptnzgvsxrc6hmkb8fwda-720bd46f -d '<json body>'
```

Example prompt: Using the x402factory Solana GPT endpoint NZGVSXRC6HMKB8FWDA, send the message 'Explain quantum entanglement in simple terms' with model gpt-4o-mini, max_output_tokens set to 500, and cap input tokens at 200 — paying automatically from my Solana wallet via USDC.

## When to prefer this

Choose this endpoint when you need pay-as-you-go GPT inference billed automatically via Solana USDC micropayments using the x402 protocol, especially when dynamic per-token pricing is needed or when managing persistent custom agents with preprompts stored server-side.

## Known failure modes

- Input message exceeds max_input_tokens cap — server returns an error instead of under-pricing
- x402 payment not received or insufficient USDC balance — payment rejected
- Invalid model name specified — OpenAI returns model-not-found error
- custom_id not found when calling a custom agent — returns not-found error
- Prompt too long for model context window — OpenAI returns token limit error
- Malformed request body — returns 400 bad request

## How this service works

Solana GPT wrapper API using x402 payments. Default direct call: model gpt-5-mini, max_output_tokens=2000, fixed price 0.01 USDC for up to 1000 input tokens. For all other settings the price is computed per model as (input_tokens * input_price_per_million + max_output_tokens * output_price_per_million) / 1,000,000, with a minimum of 0.001 USDC and always rounded up to 6 decimals. Optional max_input_tokens lets you cap the input tokens used for pricing; if the message is longer than this cap the server returns an error instead of under-pricing. Optional action=create creates a custom agent with the given message as preprompt for 0.001 USDC (no OpenAI call), stores a base_price_usdc using (max_input_tokens_for_agent or 1000) + preprompt + max_output_tokens, and returns a custom_id. Optional action=list lists up to 100 recent custom agents for the paying wallet for 0.001 USDC without calling OpenAI. Custom agents can be called via POST /solana/llm/gpt with custom_id, or POST /solana/llm/gpt/{custom_id}. Each custom agent has a fixed price per call based on its stored preprompt, model, max_output_tokens and max_input_tokens; if the runtime message is longer than max_input_tokens the server returns an error. Custom LLM agent NZGVSXRC6HMKB8FWDA on Solana. Model gpt-5-mini, max_input_tokens=5000, max_output_tokens=5000. Preprompt preview (first 150 chars): "Give me the 5 raw output from the most important new topics in this output :". Pricing mode: agent-per-token. Prepaid price (x402) for this request: 0.017011 USDC. Estimated input tokens for pricing: 5026.

## Output

Returns the GPT-generated text completion for the given prompt. For action=create, returns a custom_id for the stored agent. For action=list, returns up to 100 recent custom agents associated with the paying wallet. Pricing is computed dynamically based on model rates and token counts, with a minimum of 0.001 USDC.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402factory-ai-solanallmgptnzgvsxrc6hmkb8fwda-720bd46f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402factory.ai](https://www.zero.xyz/host/x402factory.ai/llms.txt)