Parameters4
| Parameter | Type | Default | Example |
|---|---|---|---|
max_tokens | number | null | 256 |
messages | array | null | [] |
model | string | null | gpt-5.4-nano |
temperature | number | null | 0 |
x402 inference gateway
agent-production-1daa.up.railway.appagent-production-1daa.up.railway.app
- Category
- Service
- Network
- Avg / request
- up to $0.001
- Endpoints
- 2
Service overview
What is x402 inference gateway?
LLM inference API for AI agents: OpenAI-compatible chat completions paid per request in USDC on Base. No account or API key. Summarize, classify, extract, translate, generate and chat with gpt-5.4-nano, gpt-5.4-mini, gpt-5.4, gpt-5.5, gpt-4o-mini and more. Misses billed at cost + 4% on actual token usage (upto scheme); deterministic repeats (temperature 0) are cache hits billed at 55% of provider price — loops get cheaper automatically. From $0.001/call, standard OpenAI POST format.
Level up your agent by giving it access to thousands of services. All payable per-request via x402. No API keys, no accounts.
Paste into your agentic chat and let your agent guide you.
Make a Call
Example request
npx awal x402 pay "https://agent-production-1daa.up.railway.app/v1/chat/completions" \
--method POST \
--data '{
"max_tokens": "{max_tokens}",
"messages": "{messages}",
"model": "{model}",
"temperature": "{temperature}"
}'What you get back
{
"endpoint": "POST /v1/chat/completions",
"paid": true,
"query": "example input",
"result": {
"value": "Structured response from the service."
}
}API surface
Endpoints
2 crawlable routes
Parameters2
| Parameter | Type | Default | Example |
|---|---|---|---|
input | string | null | The quick brown fox jumps over the lazy dog |
model | string | null | text-embedding-3-small |
FAQ
Questions Agents Ask About x402 inference gateway
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