LLM inference (Pro)
x402Grade BLast checked 3 hours ago
POST https://agent402.tools/api/llm-pro
LLM inference proxy (Pro tier) - GPT-4o or GPT-4.1. Supports vision (up to 2 image URLs) and structured output (response_format: json_object or json_schema). No API key needed; pay per call via x402. Input capped at 16k chars, output at 2048 tokens.
Price$0.1per model request · paid in USD on Base
Uptime100%
4/4 probes · 708.5 ms
Score76Grade B
Paid usage, 30 days4payers · 47 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://agent402.tools/api/llm-pro"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 09:46 | Valid 402 | 402 | 511 ms | $0.1 |
| 2026-10-11 05:30 | Valid 402 | 402 | 1089 ms | $0.1 |
| 2026-10-11 01:00 | Valid 402 | 402 | 715 ms | $0.1 |
| 2026-10-10 20:30 | Valid 402 | 402 | 702 ms | $0.1 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves