x402 census · api.kadec0.xyz · 211597da7a12 · JSON

GET /v1/lit-review

unprobed

Literature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a sin…

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.kadec0.xyz/v1/lit-review

Method GET

Price $0.08 USDC = 80000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA

Seller api.kadec0.xyz

Catalogs cdp (row updated 2026-09-08)

Listed since (lower bound) 2026-09-08 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-08

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-08 (catalog-reported, not verified on chain)

Category (keyword rule) weather/geo/maps

Templated path no

x402Version in catalog 2

Service name / tags Literature Review Map · literature-review, citations, cited-by, systematic-review, research-map

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 110

Payments 363

USDC volume $5.56

Median payment $0.01

First / last payment 2026-06-22 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "doi": "10.48550/arXiv.1706.03762",
   "maxItems": "10"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "count": 1,
   "items": [
    {
     "citedBy": [
      {
       "relation": "cited_by",
       "title": "BERT",
       "year": 2019
      }
     ],
     "counts": {
      "citedBy": 10,
      "references": 10,
      "related": 10,
      "total": 30
     },
     "references": [
      {
       "relation": "reference",
       "title": "Neural Machine Translation",
       "year": 2014
      }
     ],
     "seed": {
      "citationCount": 181057,
      "title": "Attention Is All You Need",
      "year": 2017
     },
     "type": "lit_review"
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.kadec0.xyz/v1/lit-review' -H 'accept: application/json'

The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/211597da7a12/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"211597da7a12"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.kadec0.xyz.