Endpoint · evidenceGET2s.io /api/papers/search ?limit=10&q=example&since=2024-01-01&sources=example
Unified scientific literature search across arXiv (preprints), PubMed (biomedical), and Semantic Scholar (cross-field, with citation counts).
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Unified scientific literature search across arXiv (preprints), PubMed (biomedical), and Semantic Scholar (cross-field, with citation counts). Returns a flat array of papers with stable schema: source, sourceId, doi, title, authors, abstract, year, publishedAt, citationCount, url, pdfUrl. Partial failures surface in the errors array rather than failing the whole call. Optional filters: since (YYYY-MM-DD), sources (subset), limit (max 20 per source).Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.006 per call
Paid calls
none yet
delivery unknown until someone pays
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URL
https://2s.io/api/papers/search?limit=10&q=example&since=2024-01-01&sources=example
Seen
first 14 days ago · last 19 hr ago
25 free handshakes
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Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.727 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 0.273: 0.184 uncertain ? + 0.089 short ? · 0.073 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.693 | 0.416 | 0 | −0.184 | |
| latency p95 it answered as fast as its class |
0.20 | 0.56 | 0.556 | 0.111 | −0.089 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.727 | gap to 1.000 = 0.273 · 0.089 short · 0.184 uncertain | 0.727 | −0.089 | −0.184 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.693 liveness
+ 0.200 × 0.556 latency p95
+ 0.200 × 1.000 price stability
= 0.727 → UNRATED: 20 of 30 paid calls weights 2026.09.6 · 20 samples · seed cap_01M2Z14753SFPZ4T0VXG3VBB91|2026-09-01T00:36:02.007Z|2026.09.6
Verify it yourself
npx teppi-check https://2s.io/api/papers/search?limit=10&q=example&since=2024-01-01&sources=examplecurl -s https://api.teppi.xyz/v1/trust/cap_01M2Z14753SFPZ4T0VXG3VBB91