x402engine.app
x402Grade CLast checked 1 hour ago
POST https://x402engine.app/api/llm/perplexity
Search-augmented LLM — answers grounded in real-time web search with citations
Price$0.045per search query · paid in USD on Base
Uptime100%
4/4 probes · 595.5 ms
Score59Grade C
Paid usage, 30 days2payers · 2 calls
Warnings
Price mismatch The live price differs from the catalogue listing.
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://x402engine.app/api/llm/perplexity"
# 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 09:16 | Valid 402 | 402 | 558 ms | $0.022 |
| 2026-10-11 04:45 | Valid 402 | 402 | 474 ms | $0.022 |
| 2026-10-11 00:15 | Valid 402 | 402 | 633 ms | $0.022 |
| 2026-10-10 19:30 | Valid 402 | 402 | 944 ms | $0.022 |
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