# llmgate OpenAI-Compatible LLM API (x402 Pay-Per-Call)

> llmgate OpenAI-Compatible LLM API (x402 Pay-Per-Call) is a paid API for AI agents from 89.106.83.95.sslip.io:8443, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Provides an OpenAI-compatible chat completions endpoint that charges $0.01 USDC per call via x402 micropayment protocol on Base.

## Facts

- Endpoint: POST https://89.106.83.95.sslip.io:8443/v1/chat/completions
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/llmgate-openai-compatible-llm-api-x402-pay-per-call-92ca2ecd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w1RsaP0ofVufco41UZfvD

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 llmgate-openai-compatible-llm-api-x402-pay-per-call-92ca2ecd -d '<json body>'
```

Example prompt: Use the llmgate pay-per-call LLM to answer this question: 'What are three creative names for a dog walking app?' — pay the $0.01 USDC fee automatically per call.

## When to prefer this

Choose this endpoint when you need OpenAI-compatible chat completions with per-call crypto micropayments instead of a traditional subscription. Ideal for autonomous AI agents that manage their own on-chain wallets on Base, for cost-controlled deployments where each inference must be explicitly metered and billed, or for crypto-native applications where paying in USDC is a requirement. Prefer over standard OpenAI API when you want no monthly commitment, payment via x402 protocol, and auditability of each call on Base.

## Known failure modes

- Payment not received or insufficient USDC balance — request rejected with 402 Payment Required
- Invalid or malformed messages array — returns 400 Bad Request
- Model not available or overloaded — returns 503 or 500 error
- x402 payment protocol handshake failure — payment not processed, call not completed
- Malformed JSON request body — returns 400 error
- Rate limiting if too many calls in a short window — returns 429 Too Many Requests

## How this service works

x402-paywalled OpenAI-compatible LLM API. Pay per call in USDC on Base.

## Output

Returns a JSON object in standard OpenAI chat completions format, containing a 'choices' array with at least one element holding a 'message' object with 'role' set to 'assistant' and 'content' containing the generated text response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "model": {
   "type": "string"
  },
  "messages": {
   "type": "array",
   "items": {
    "type": "object"
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "choices": [
   {
    "message": {
     "role": "assistant",
     "content": "Hi!"
    }
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/llmgate-openai-compatible-llm-api-x402-pay-per-call-92ca2ecd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 89.106.83.95.sslip.io:8443](https://www.zero.xyz/host/89.106.83.95.sslip.io%3A8443/llms.txt)