$0.02
per call · USD Coin on Base
Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.
Endpoint
GET https://api.kadec0.xyz/v1/papers165
Calls / 30d
4
Unique payers / 30d
Sep 10
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://api.kadec0.xyz/v1/papers", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://api.kadec0.xyz/v1/papers?maxItems=10&q=transformer+attention&sort=citations&source=all" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"count": 1,
"items": [
{
"abstract": "The dominant sequence transduction models...",
"authors": [
"Ashish Vaswani"
],
"citationCount": 181057,
"doi": "10.48550/arxiv.1706.03762",
"pdfUrl": "https://arxiv.org/pdf/1706.03762",
"source": "openalex",
"sources": [
"openalex",
"semanticscholar"
],
"title": "Attention Is All You Need",
"type": "paper",
"url": "https://doi.org/...",
"venue": "NeurIPS",
"year": 2017
}
]
}Payment details
0x4df66b6c140778fe0717880a7c6dde5ea53acdeaUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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