Inference402 Chat Small (Llama 3.1 8B)

x402

Inference402 Chat Small (Llama 3.1 8B) is a paid API for AI agents from inference402.worlddata402.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Pay-per-call chat inference using Llama 3.1 8B via USDC micropayment on Base, no API key required

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call AI inference for agents: chat (Llama 3.3 70B / 3.1 8B), structured JSON, summarize, translate (incl. Egyptian Arabic), extract, classify, sentiment, keywords, rewrite, embeddings, moderation, vision and speech-to-text. USDC on Base mainnet over x402. No API key, no account.

Output

Returns a JSON object with the generated text content, the model identifier (e.g. @cf/meta/llama-3.1-8b-instruct-fp8), and token usage stats including prompt_tokens and completion_tokens.

Example use cases

Agent pipeline cheap reasoning step

“Use the small Llama model to decide, given this product description, whether it belongs in the 'electronics' or 'home goods' category — keep it to one word answer and limit tokens to 10.”

Lightweight creative text generation

“Have the small Llama 8B model write a punchy three-sentence tagline for my new coffee brand called 'Morning Bloom', with a warm and energetic tone, max 80 tokens.”

Quick factual Q&A without account

“Ask the pay-per-call Llama model: 'What are the three main branches of the US government?' — I don't want to sign up anywhere, just pay per call with crypto, keep the answer under 150 tokens.”

Technical details

Endpoint

GEThttps://inference402.worlddata402.workers.dev/v1/chat/small?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a cheap, fast, keyless LLM inference call via USDC micropayment on Base mainnet and a smaller model (8B) is sufficient for the task. Prefer it over the large sibling when latency and cost matter more than reasoning depth. Ideal for agent pipelines needing many low-cost inference steps without managing API credentials.

Side effects

Payment not received or insufficient USDC — returns 402 Payment Required
Messages array empty or malformed — schema validation error
max_tokens exceeds 512 — rejected by schema
temperature out of 0–2 range — validation error
Network timeout on Cloudflare Worker — transient 5xx error
messages array exceeds 50 items — rejected by schema

Input

Schema · Request body

Field	Type	Description
messages	array
max_tokens	integer
temperature	number

Output

Schema · Response

{
  "type": "json",
  "example": {
    "model": "@cf/meta/llama-3.1-8b-instruct-fp8",
    "usage": {
      "prompt_tokens": 20,
      "completion_tokens": 40
    },
    "content": "1. Bean There ..."
  }
}

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