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api.unland.dev psi source-pack
https://api.unland.dev/v1/psi/source-pack
answers 402
Returns ranked bibliographic sources, relevance, and likely page locations from the curated Logos Chirality 76-source research index. Settlement is $0.05 plus $0.01 per delivered source, up to $0.25. No source files, private paths, original filenames, or extracted passages are delivered.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.25
- Network
- base
- Pay to
- 0x1E75a31bA980b1d0aBb2F2A6816063bf45BE35F7
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 363 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:19:32.061Z (36d ago)
- Category
- web-scraping
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.unland.dev%2Fv1%2Fpsi%2Fsource-pack"