# GEDX402 Llama 3.1 70B Instruct FP8 Fast LLM

> GEDX402 Llama 3.1 70B Instruct FP8 Fast LLM is a paid API for AI agents from llm.gedx402.com, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-13).

Runs inference on Meta's Llama 3.1 70B Instruct FP8 Fast model, payable per-call with USDC on multiple chains via x402, no API key required.

## Facts

- Endpoint: GET https://llm.gedx402.com/v1/llm/llama-3.1-70b-instruct-fp8-fast
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gedx402-llama-3-1-70b-instruct-fp8-fast-llm-cf064624
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZtikM4PkUgrO97KQZhA5V

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 gedx402-llama-3-1-70b-instruct-fp8-fast-llm-cf064624
```

Example prompt: Ask Llama 3.1 70B to explain the difference between proof-of-work and proof-of-stake in simple terms — pay per call with USDC, no API key needed, up to 512 tokens in the reply.

## When to prefer this

Choose this endpoint when you need fast, no-API-key LLM inference on a capable 70B instruction-tuned model and want to pay per-call in USDC using the x402 protocol on Base, Polygon, Arbitrum, World, or Solana. Ideal for agents or pipelines that want to avoid API key management and prefer crypto micropayments for usage-based billing.

## Known failure modes

- Payment not received or insufficient USDC balance — 402 Payment Required response
- Invalid message format (missing role or content fields) — 400 Bad Request
- max_tokens exceeds 4096 — validation error
- Unsupported payment chain — payment rejected
- Model overload or Workers AI backend unavailability — 503 Service Unavailable
- Malformed conversation array — schema validation failure

## How this service works

x402 workers ai. pay with usdc on base, polygon, arbitrum, world, or solana. no api keys.

## Output

A JSON object containing the model identifier (@cf/meta/llama-3.1-70b-instruct-fp8-fast) and the assistant's generated text response string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "messages": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "role",
     "content"
    ],
    "properties": {
     "role": {
      "enum": [
       "system",
       "user",
       "assistant"
      ],
      "type": "string",
      "description": "Speaker role for this turn."
     },
     "content": {
      "type": "string",
      "description": "Message text for this turn."
     }
    }
   },
   "description": "Conversation turns in order (system, user, assistant)."
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 4096,
   "minimum": 1,
   "description": "Maximum tokens to generate in the assistant reply."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "model": "@cf/meta/llama-3.1-70b-instruct-fp8-fast",
  "response": "Hello!"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gedx402-llama-3-1-70b-instruct-fp8-fast-llm-cf064624/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from llm.gedx402.com](https://www.zero.xyz/host/llm.gedx402.com/llms.txt)