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DeepSeek Chat via Model Access Gateway (x402)
x402
DeepSeek Chat via Model Access Gateway (x402) is a paid API for AI agents from agent402-arb.rosariovitale0096.workers.dev, paid per call via x402, $0.0014/call, status unknown (last checked 2026-10-18).
Runs a DeepSeek deepseek-chat inference call through a pay-per-use USDC gateway on Arbitrum, returning an OpenAI-compatible chat completion response.
Price / call$0.0014
Success—
StatusUnknown
How this service works
DeepSeek V4 Flash Chat API (deepseek/deepseek-chat): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4 Flash Chat on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
Output
An OpenAI-compatible chat completion JSON object containing the assistant's generated message text, finish reason, token usage statistics, and model metadata.
Example use cases
On-demand coding assistant via micropayment
“Use the DeepSeek chat model to write a Python function that parses a CSV file and returns a list of dictionaries, one per row — pay for the call automatically.”
Summarize research notes with DeepSeek
“I have some rough notes on quantum computing — can you send them to DeepSeek chat and get back a clean two-paragraph summary?”
Automated content drafting pipeline
“Draft a short product description for a noise-cancelling headphone called 'ZenBuds Pro' using the DeepSeek model — keep it under 100 words and upbeat in tone.”
Technical details
Endpoint
POSThttps://agent402-arb.rosariovitale0096.workers.dev/v1/chat/completions/deepseek%2Fdeepseek-chat?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-call access to DeepSeek's deepseek-chat model without a monthly subscription, especially in agentic workflows where USDC micropayments via the x402 protocol on Arbitrum are already integrated. Prefer it over direct DeepSeek API calls when your agent stack is crypto-native and you want per-inference cost control without API key management.
Side effects
- Insufficient USDC balance or failed x402 payment leads to 402 Payment Required error
- Malformed request body (missing required fields) returns a 400 validation error
- Model overload or upstream DeepSeek outage returns 503 or timeout
- Invalid or missing authorization header causes 401 Unauthorized
- Rate limiting on the gateway worker may return 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | Optional: fixed by the route (deepseek/deepseek-chat) |
| tools | array | |
| stream | boolean | true: server-sent events after payment |
| messages | array | |
| max_tokens | integer | Optional, default 4096 |
| temperature | number | |
| response_format | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-7f3c2a91",
"model": "deepseek/deepseek-chat",
"usage": {
"total_tokens": 10,
"prompt_tokens": 9,
"completion_tokens": 1
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "OK"
},
"finish_reason": "stop"
}
],
"created": 1791979200
}
}Tags
x402
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