# FarOut GLM-5.3-Flash Chat Completions via x402

> FarOut GLM-5.3-Flash Chat Completions via x402 is a paid API for AI agents from farouter.tech, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Run a chat completion against GLM-5.3-Flash with per-request USDC micropayment billing via x402 — no API key or account required.

## Facts

- Endpoint: POST https://farouter.tech/v1/metered/models/glm-5.3-flash/chat/completions
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/farout-glm-5-3-flash-chat-completions-via-x402-4d05878f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6YeME5cbDM8llbDQJ7AET

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 farout-glm-5-3-flash-chat-completions-via-x402-4d05878f -d '<json body>'
```

Example prompt: Ask GLM-5.3-Flash: 'Summarize the key differences between supervised and unsupervised learning in three bullet points' — pay the $0.001 USDC fee per call on Base, no API key needed.

## When to prefer this

Choose this endpoint when you need GLM-5.3-Flash specifically (Zhipu AI's fast model) with zero-friction pay-per-call billing via x402 micropayments in USDC — ideal for autonomous AI agents, serverless workflows, or prototypers who want no API key, no monthly plan, and guaranteed no-charge on failed calls. Prefer alternatives if you need streaming responses, a different model family (GPT, Gemini, etc. are on sibling endpoints), or if you require OAuth-based authentication.

## Known failure modes

- Payment insufficient or wallet balance too low — request rejected before inference runs, no charge
- x402 payment header missing or malformed — 402 response returned with exact cost quote
- Model overloaded or unavailable — 5xx error, no charge incurred
- Malformed request body (missing messages array or invalid JSON) — 400 error
- Network timeout before payment settles — call may not complete, charge depends on settlement state

## How this service works

Pay-per-call LLM inference over x402. Frontier models (GLM, GPT, Gemini, Kimi, DeepSeek, MiniMax) billed per request in USDC on Base or Solana mainnet. No API key, no account. The 402 quotes your exact request; failed calls are never charged.

## Output

A JSON response containing the assistant's reply text under choices[0].message.content, a finish_reason (e.g. 'stop'), and a usage object with prompt_tokens and completion_tokens counts. The response mirrors the OpenAI chat completions format.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "usage": {
   "prompt_tokens": 6,
   "completion_tokens": 8
  },
  "choices": [
   {
    "message": {
     "role": "assistant",
     "content": "Hello! How can I help?"
    },
    "finish_reason": "stop"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/farout-glm-5-3-flash-chat-completions-via-x402-4d05878f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from farouter.tech](https://www.zero.xyz/host/farouter.tech/llms.txt)