# GEDX402 Gemma SEA-Lion v4 27B Instruct LLM

> GEDX402 Gemma SEA-Lion v4 27B Instruct LLM is a paid API for AI agents from llm.gedx402.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).

Runs inference on Cloudflare Workers AI's gemma-sea-lion-v4-27b-it model, billed per-call in USDC via x402 protocol with no API key required

## Facts

- Endpoint: GET https://llm.gedx402.com/v1/llm/gemma-sea-lion-v4-27b-it
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gedx402-gemma-sea-lion-v4-27b-instruct-llm-0286676a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j90nGgFRDlCt8suyTwmOi

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-gemma-sea-lion-v4-27b-instruct-llm-0286676a
```

Example prompt: Ask the Gemma SEA-Lion 27B model this question for me — I want up to 512 tokens in the reply: 'Can you explain the concept of gotong royong in Bahasa Indonesia and how it relates to modern community cooperation?'

## When to prefer this

Choose this endpoint when you need access to the SEA-Lion v4 27B model (optimized for Southeast Asian languages and multilingual tasks) without API key registration, paying micropayments in USDC on Base, Polygon, Arbitrum, World, or Solana via x402. Ideal for agents with crypto wallets that need on-demand LLM inference without subscription overhead.

## Known failure modes

- Payment failure: insufficient USDC balance on supported chain returns 402 Payment Required
- Invalid message format: missing required 'role' or 'content' fields returns 400
- max_tokens out of range (must be 1-4096) returns validation error
- Model unavailable on Cloudflare Workers AI returns 503
- Malformed JSON body returns 400 Bad Request

## 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 name '@cf/aisingapore/gemma-sea-lion-v4-27b-it' and a 'response' string with the generated assistant text, billed $0.04 USDC per call via x402.

## 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/aisingapore/gemma-sea-lion-v4-27b-it",
  "response": "Hello!"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gedx402-gemma-sea-lion-v4-27b-instruct-llm-0286676a/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)