Endpoint · researchGETapexfaucet.xyz /api/x402/research-search ?limit=5&q=x402+payment+protocol&sources=arxiv%2Copenalex
Search Wikipedia, Wikivoyage, Wiktionary, arXiv, OpenAlex, Hacker News and Stack Overflow in one call.
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Search Wikipedia, Wikivoyage, Wiktionary, arXiv, OpenAlex, Hacker News and Stack Overflow in one call. Research search in one call: Wikipedia, Wikivoyage (travel guides), Wiktionary (meanings, translations), PsychonautWiki (harm reduction: name a substance and the answer leads with dose ranges, duration and dangerous combinations), arXiv, OpenAlex (300M+ scholarly works, counted 30 Sep), Hacker News and Stack Overflow asked in parallel, answered in about a second, each hit with its source,…Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
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none yet
delivery unknown until someone pays
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https://apexfaucet.xyz/api/x402/research-search?limit=5&q=x402+payment+protocol&sources=arxiv%2Copenalex
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first 3 days ago · last 2 days ago
5 free handshakes
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x402
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Arc, Base USDC, Solana
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Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.383 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.617: 0.600 uncertain ? + 0.017 short ? · 0.067 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.000 | 0.000 | 0 | −0.600 | |
| latency p95 it answered as fast as its class |
0.20 | 0.92 | 0.917 | 0.183 | −0.017 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.383 | gap to 1.000 = 0.617 · 0.017 short · 0.600 uncertain | 0.383 | −0.017 | −0.600 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.000 liveness
+ 0.200 × 0.917 latency p95
+ 0.200 × 1.000 price stability
= 0.383 → UNRATED: 5 of 30 paid calls weights 2026.09.6 · 5 samples · seed cap_01M3V00ASGPJ0SST1A7X9MGJV8|2026-09-04T09:16:09.270Z|2026.09.6
Verify it yourself
npx teppi-check https://apexfaucet.xyz/api/x402/research-search?limit=5&q=x402+payment+protocol&sources=arxiv%2Copenalexcurl -s https://api.teppi.xyz/v1/trust/cap_01M3V00ASGPJ0SST1A7X9MGJV8