# fold · x402 — Qwen3-6-Flash LLM (Onchain Market Intelligence)

> fold · x402 — Qwen3-6-Flash LLM (Onchain Market Intelligence) is a paid API for AI agents from x402.fold.computer, paid per call via x402, $2/call, status down (last checked 2026-09-15).

Runs inference on the Qwen3-6-Flash model via x402 micropayment protocol, specialized for machine-readable onchain market intelligence queries from AI agents.

## Facts

- Endpoint: POST https://x402.fold.computer/llm/qwen3-6-flash
- Price: $2/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fold-x402-qwen3-6-flash-llm-onchain-market-intelligence-559a63c7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J53cl5E3XRq4IBmK6RIuH

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 fold-x402-qwen3-6-flash-llm-onchain-market-intelligence-559a63c7 -d '<json body>'
```

Example prompt: Ask fold's Qwen3-6-Flash model what the current onchain sentiment is for ETH/USDC liquidity pools, and whether now is a good time for a swap — keep the response under 300 tokens.

## When to prefer this

Choose this endpoint when your AI agent needs LLM inference that is natively integrated with the x402 micropayment protocol and specifically positioned for onchain/crypto market intelligence use cases. Prefer it over generic OpenAI or Anthropic endpoints when you want a crypto-native LLM gateway that accepts USDC per-call payments without subscription overhead, and when the Qwen3-6-Flash model's characteristics (fast, efficient) suit your latency and cost requirements.

## Known failure modes

- Payment failure: x402 payment not accepted or insufficient USDC balance — endpoint returns 402 Payment Required
- Invalid messages format: messages array missing or not in OpenAI format — returns 400 Bad Request
- Model overload or timeout: Qwen3-6-Flash unavailable — returns 503 or 504
- max_tokens exceeded or invalid temperature value — returns 422 Unprocessable Entity
- Network/gateway error on fold.computer infrastructure — returns 500

## How this service works

Machine-readable market intelligence for onchain agents, served over x402.

## Output

An OpenAI-format chat completion object containing the model's generated response to the input messages, along with x402 cost metadata and a status field indicating success. The data object mirrors OpenAI's completion structure so agents can parse it with standard tooling.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "messages"
 ],
 "properties": {
  "messages": {
   "type": "array",
   "description": "OpenAI-format chat messages"
  },
  "max_tokens": {
   "type": "number"
  },
  "temperature": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "status",
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "description": "OpenAI-format completion + x402 cost info"
  },
  "status": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fold-x402-qwen3-6-flash-llm-onchain-market-intelligence-559a63c7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.fold.computer](https://www.zero.xyz/host/x402.fold.computer/llms.txt)