Supreme Audiobooks
GET https://supremeaudiobooks.com/api/v1/books/a_christmas_carol
Listed in x402 List · Data: x402-list.com (CC BY 4.0)
Metadata for a single audiobook. A corpus of 3,029 public-domain audiobooks by 1,822 authors, with original editorial descriptions and 1,644 machine transcripts across 12 languages (ar, bg, de, en, es, fr, hi, ja, ko, pt, ru, zh). Four x402-metered endpoints: the full catalogue, per-book records, substring search over title and author, and full transcript text per book per language. The audio is public-domain LibriVox narration and is NOT sold here; it is free from us and from LibriVox. What is metered is our own work: the catalogue metadata, the editorial essays, and the transcripts and translations. Human-facing pages and search-engine crawlers are never charged. Terms: https://supremeaudiobooks.com/licensing
Other endpoints from supremeaudiobooks.com
The same service's other paid functions that Hagglyai tracks, each with its own price. Functions outside Hagglyai's categories are not listed.
| Endpoint | Category | Price per call |
|---|---|---|
| GET /api/v1/catalog | Translation | $0.05 |
| GET /api/v1/transcripts/a_christmas_carol | Translation | $0.01 |
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 GET "https://supremeaudiobooks.com/api/v1/books/a_christmas_carol"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-15 00:30 | Valid 402 | 402 | 613 ms | $0.001 |
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