# x402factory.ai Solana GPT Wrapper (6JAF5PYRGEC8X9XYFC)

> x402factory.ai Solana GPT Wrapper (6JAF5PYRGEC8X9XYFC) 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).

Proxies GPT model calls (and agent creation/listing) via x402 micropayments on Solana, with per-token dynamic pricing

## Facts

- Endpoint: POST https://x402factory.ai/solana/llm/gpt/6JAF5PYRGEC8X9XYFC
- 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-solanallmgpt6jaf5pyrgec8x9xyfc-1a5a9bb6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ASrhBj1kciBJRErZZqBYV

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-solanallmgpt6jaf5pyrgec8x9xyfc-1a5a9bb6 -d '<json body>'
```

Example prompt: Ask the x402factory Solana GPT endpoint to answer 'What are the main causes of inflation?' using gpt-4o-mini with a max of 500 output tokens and a 1000 input token cap, paying with my Solana USDC wallet.

## When to prefer this

Choose this endpoint when you need to call an OpenAI GPT model and want to pay per-use with USDC on Solana via x402 micropayments, without setting up an OpenAI API key directly. Also ideal for creating reusable custom agents with stored preprompts, or listing previously created agents, all billed to a Solana wallet.

## Known failure modes

- Input tokens exceed max_input_tokens cap — server returns an error instead of under-pricing
- Insufficient USDC balance for the computed price — payment rejected by x402 protocol
- Invalid model name specified — returns model not found error
- Malformed message or missing required fields — 400 bad request
- Rate limiting or server overload — 503 or timeout
- custom_id not found for action=message with agent — 404 error

## 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=message (or omitting action) performs a direct GPT call with the given message. 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 6JAF5PYRGEC8X9XYFC on Solana. Model gpt-5-mini, max_input_tokens=5000, max_output_tokens=5000. Preprompt preview (first 150 chars): "Reply to me with the image url of the most important topic, make sure it's a image url, if most important topic haven't image url use a url from the n". Pricing mode: agent-per-token. Prepaid price (x402) for this request: 0.017028 USDC. Estimated input tokens for pricing: 5069.

## Output

Returns the GPT model's text response along with token usage details and the USDC amount charged. For action=create, returns a custom_id for the new agent. For action=list, returns up to 100 recent custom agents associated with the paying wallet.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402factory-ai-solanallmgpt6jaf5pyrgec8x9xyfc-1a5a9bb6/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)