# FarOut DeepSeek-V4-Flash Chat Completions (x402 Pay-Per-Call)

> FarOut DeepSeek-V4-Flash Chat Completions (x402 Pay-Per-Call) 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).

Runs a single DeepSeek-V4-Flash chat completion request billed at $0.001 USDC per call via x402 micropayment — no API key or account required.

## Facts

- Endpoint: POST https://farouter.tech/v1/metered/models/deepseek-v4-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-deepseek-v4-flash-chat-completions-x402-pay-per-call-9ba0448b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fv9eMzGY_MLCE6ipGnXfO

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-deepseek-v4-flash-chat-completions-x402-pay-per-call-9ba0448b -d '<json body>'
```

Example prompt: Ask DeepSeek-V4-Flash to summarize this paragraph for me: 'Artificial intelligence is transforming industries by automating complex tasks, enabling faster decision-making, and unlocking new creative possibilities.' — pay per call in USDC, no signup needed.

## When to prefer this

Choose this endpoint when you need DeepSeek-V4-Flash chat completions and want true pay-per-call billing in USDC via x402 with no API key, no subscription, and no account — ideal for autonomous agents or occasional inference workloads where pre-paying for tokens or managing API credentials is impractical. Prefer alternatives if you need streaming responses, very high throughput, or a model other than DeepSeek-V4-Flash.

## Known failure modes

- Payment failure: x402 micropayment rejected or wallet has insufficient USDC — call is not charged and request is not processed
- Model unavailable: DeepSeek-V4-Flash endpoint down or overloaded — returns server error
- Malformed request: missing or invalid messages array — returns 400 bad request
- Network timeout: inference takes too long — connection dropped, no charge if payment not settled
- Invalid x402 payment header — 402 response with a fresh payment quote returned instead of completion

## 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

Returns a JSON object with a choices array containing the assistant's reply message, finish reason (e.g. 'stop'), and a usage object with prompt_tokens and completion_tokens counts. The response follows the standard 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-deepseek-v4-flash-chat-completions-x402-pay-per-call-9ba0448b/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)