the402 endpoint detail

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sh-origin.walls.sh research

https://sh-origin.walls.sh/research

answers 402

One-call web research for AI agents: searches the live web AND reads the top result pages as clean markdown — content, not just links. Give a question, get ranked results plus the full readable text of the best pages. Optional ?domains=nih.gov,pubmed.ncbi.nlm.nih.gov to restrict page reading to specific sources. Pay-per-call in USDC via x402 — no signup, no API key. Use for answering questions fro

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0xF7fdEFfc3ABc97379418b0A687FDb54e1CBcE163
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
612 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:14:46.742Z (23d ago)
Category
web-scraping

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fsh-origin.walls.sh%2Fresearch"