Discover / research-papers.x402tookit.com

Research Paper Checks

■ Challenge detected

Researcher profile by name: works, citations, h-index and institution of the best match, with an ambiguity warning.

Listed price
$0.02
Challenge detected
1 of the last check
Median response
182 ms
Last checked
21 Oct, 00:26 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://research-papers.x402tookit.com/author-profile
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
8 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://research-papers.x402tookit.com

  • GET/paper-lookupNo price listedPaper profile by DOI: title, journal, year, citations, field-weighted impact, open-access link and retraction state.
  • GET/topic-papersNo price listedRecent research papers on a topic from OpenAlex: title, year, citations, DOI and open-access link, most relevant first.
  • GET/author-profileNo price listedResearcher profile by name: works, citations, h-index and institution of the best match, with an ambiguity warning.
  • GET/paper-retraction-checkNo price listedHas this paper been retracted, corrected or flagged? Notices from Crossref and Retraction Watch for a DOI.
  • GET/institution-profileNo price listedResearch institution profile by name: type, country, works, citations, h-index and top research topics.
  • GET/journal-profileNo price listedJournal profile by name: output, citations, h-index, open-access status, DOAJ listing, article fee and quality flags.
  • GET/citation-verifyNo price listedVerify a citation: does the DOI exist, does its real title match the claimed title, and has it been retracted?
  • GET/doi-metadataNo price listedClean bibliographic metadata for a DOI from Crossref: authors, journal, pages, publisher, license, plus a ready citation string.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 8 of 8 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/research-papers.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:26 UTCChallenge detected402182ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Research Paper Checks?

Its listed price is $0.02.

What payment terms does Research Paper Checks advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Research Paper Checks listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

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