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NoJunk LLM Chat Completions
x402
NoJunk LLM Chat Completions is a paid API for AI agents from nojunk-llm.mick8511.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-16).
Pay-per-call OpenAI-compatible chat completions API using Llama 3.3 70B or Qwen 2.5 Coder 32B, billed per request in USDC with no API key required
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call, OpenAI-compatible LLM API for agents: POST /v1/chat/completions (Llama 3.3 70B or Qwen 2.5 Coder 32B, up to 32,000 characters of messages, up to 1,024 output tokens, optional JSON mode) and POST /v1/embeddings (BGE-M3, 1,024 dimensions, up to 32 inputs per call). Point any OpenAI client at this base URL and pay per request in USDC on Base via x402: no API key, no account, no rate limits. You are only charged when a valid result is returned.
Output
Returns an OpenAI-compatible chat.completion JSON object containing the assistant's reply in choices[0].message.content, the finish_reason (e.g. 'stop'), prompt/completion/total token counts in usage, the model name, a unique completion ID, and a created timestamp. Optionally structured as a JSON object if response_format was set.
Example use cases
Keyless LLM for autonomous agent
“I need you to call an LLM API that doesn't require an account or API key — just use the pay-per-call setup with USDC. Send this system prompt: 'You are a concise assistant.' and this user message: 'Summarize the key risks of DeFi lending in 3 bullet points.' Use Llama 3.3 70B and cap the output at 256 tokens.”
Structured JSON extraction from text
“Use the NoJunk LLM to extract the company name, founding year, and headquarters city from this text as a JSON object: 'Acme Corp was founded in 2010 and is headquartered in Austin, Texas.' Force a JSON response format and use Llama 3.3 70B.”
Code generation with Qwen Coder model
“I need to generate a Python function that parses a CSV file and returns rows as a list of dicts — use the Qwen 2.5 Coder 32B model on NoJunk LLM, set max tokens to 512, and pay per call in USDC without needing an API key.”
Technical details
Endpoint
POSThttps://nojunk-llm.mick8511.workers.dev/v1/chat/completions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when building AI agents or pipelines that need OpenAI-compatible LLM inference without managing API keys, accounts, or subscription plans — especially when operating in a crypto-native or x402-enabled environment where USDC micropayments per call are preferable to monthly billing. Ideal for autonomous agents that need to self-fund LLM calls, serverless pipelines without secret management, or developers who want no rate limits and true pay-for-what-you-use pricing. Prefer Qwen 2.5 Coder 32B for code generation tasks and Llama 3.3 70B for general reasoning and text tasks.
Side effects
- Payment not processed or insufficient USDC balance — request rejected with 402 Payment Required
- Streaming requested (stream: true) — not supported, returns error
- Messages exceed 32,000 character limit — request rejected
- max_tokens exceeds 1,024 — request rejected or clamped
- Invalid model name not matching llama-3.3-70b, qwen2.5-coder-32b, or gpt-4o-mini alias — may default or error
- Malformed messages array (missing role or content fields) — validation error
- More than 200 messages in conversation — request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Optional: llama-3.3-70b or qwen2.5-coder-32b (default llama-3.3-70b; "gpt-4o-mini" is an alias of the default) |
| top_p | number | Optional: nucleus sampling, 0-1 |
| stream | boolean | Must be false or omitted (streaming is not supported) |
| messages | array | Conversation so far, 1-200 messages, at most 32000 characters of content in total |
| max_tokens | integer | Optional: maximum completion tokens, 1-1024 (default 512) |
| temperature | number | Optional: 0-2 (default 0.7) |
| response_format | object | Optional: {"type": "json_object"} to force a JSON object reply |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-9f1c2d3e-4b5a-4c6d-8e7f-0a1b2c3d4e5f",
"model": "llama-3.3-70b",
"usage": {
"total_tokens": 60,
"prompt_tokens": 31,
"completion_tokens": 29
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "USDC is a US-dollar stablecoin issued by Circle, redeemable 1:1 for dollars and backed by cash and short-term Treasuries."
},
"finish_reason": "stop"
}
],
"created": 1760529600
}
}Tags
x402
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