Overview
three.ws Paper Detail: $0.003 USDC per call returns metadata, abstract, TL;DR, and a two-sided citation graph for a DOI, arXiv id, or Semantic Scholar id.
Protocol
x402
Price
—
Payment Asset
—
Payment Network
—
Category
uncategorized
Provider
—
Source
self-registered
Indexed
2026-10-24 10:23:13
Health
Status
healthy
Latency (p50)
483ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-26 20:36:21
Last Healthy
2026-10-26 20:36:21
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
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Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-26 20:36:21 | healthy | 402 | 153ms | |
| 2026-10-25 22:06:55 | healthy | 402 | 204ms | |
| 2026-10-25 13:26:22 | healthy | 402 | 1853ms | |
| 2026-10-25 03:35:16 | healthy | 402 | 483ms |