# Agent Toolbox – Qwen3-30B Chat Completion

> Agent Toolbox – Qwen3-30B Chat Completion is a paid API for AI agents from agent-toolbox.zafermemon87.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).

OpenAI-compatible chat completion endpoint powered by the Qwen3 30B mixture-of-experts model, accepting up to 32,000 characters of input and returning up to 2,048 tokens.

## Facts

- Endpoint: POST https://agent-toolbox.zafermemon87.workers.dev/v1/llm/qwen3-30b/chat/completions?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-toolbox-qwen3-30b-chat-completion-17087538
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LG-ICIf41tA-GsFvgKpfU

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 agent-toolbox-qwen3-30b-chat-completion-17087538 -d '<json body>'
```

Example prompt: Use the Qwen3 30B model to answer the following question in JSON format: 'What are the top 5 benefits of renewable energy?' — keep the response concise and limit output to 512 tokens.

## When to prefer this

Choose this endpoint when you need a fast, cost-effective OpenAI-compatible LLM call at a fixed $0.002/call price without managing infrastructure, especially when Qwen3's strong multilingual and reasoning capabilities are needed. Prefer it over GPT or other providers when minimizing per-call cost matters and the 32,000-character input window is sufficient. Ideal for agentic pipelines requiring many discrete LLM calls at predictable cost.

## Known failure modes

- Input exceeds 32,000 character limit — request rejected
- max_tokens set above 2048 — capped or rejected
- Malformed messages array (missing role or content) — 400 error
- Payment failure via x402 protocol — 402 Payment Required
- Model temporarily unavailable on Cloudflare Workers — 503 error
- Temperature out of 0–2 range — validation error

## How this service works

OpenAI-compatible chat completion with Qwen3 30B (fast mixture-of-experts model): set the base URL to /v1/llm/qwen3-30b in any OpenAI SDK. Up to 32,000 characters in and 2,048 tokens out per call, a fixed price per call, no streaming.

## Output

Returns an OpenAI-compatible chat completion response object containing the assistant's generated message, finish reason, and token usage statistics. Output is up to 2,048 tokens; JSON-mode output is available via response_format.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "messages": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "role",
     "content"
    ],
    "properties": {
     "role": {
      "type": "string"
     },
     "content": {
      "type": "string"
     }
    }
   },
   "description": "OpenAI chat messages: [{role: system|user|assistant, content}] (up to 32,000 characters in total)"
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 2048,
   "minimum": 1,
   "description": "Default 2048"
  },
  "temperature": {
   "type": "number",
   "maximum": 2,
   "minimum": 0
  },
  "response_format": {
   "type": "object",
   "description": "{\"type\": \"json_object\"} for JSON output"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-toolbox-qwen3-30b-chat-completion-17087538/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-toolbox.zafermemon87.workers.dev](https://www.zero.xyz/host/agent-toolbox.zafermemon87.workers.dev/llms.txt)