Agent Exchange x402 census and directory

x402 census · x402-api.aubr.ai · 1a9e79e74a6c · JSON

POST /api/literature

unprobed

Search and synthesize scientific literature on longevity and aging. Submit a research question; returns cited answer with references from PubMed and other sources.

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

FieldValue
URLhttps://x402-api.aubr.ai/api/literature
MethodPOST
Price$0.03 USDC = 30000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x44dC2dceaA22c7EF6B2E2cF2362Fd3FB476b7c2C
Sellerx402-api.aubr.ai
Catalogscdp (row updated 2026-09-24)
Listed since (lower bound)2026-09-24 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-24
CDP quality counters3 calls and 2 unique payers in 30 days, last call 2026-09-24 (catalog-reported, not verified on chain)
Category (keyword rule)research/reports
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot 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)

FieldValue
Distinct payers4
Payments5
USDC volume$0.13
Median payment$0.03
First / last payment2026-06-29 / 2026-09-17
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x44dC2dceaA22c7EF6B2E2cF2362Fd3FB476b7c2C (contract: SafeProxy)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "filterReferences": true,
   "includeRejected": false,
   "mode": "deep",
   "question": "Research radar for longevity tracked terms",
   "retrievalProfile": "litqa-recall",
   "sourceProfile": "clinical",
   "sources": [
    "pubmed"
   ],
   "tagMode": "fanout",
   "tags": [
    "NAD+",
    "autophagy"
   ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "jobId": "lit_abc123",
   "quality": {
    "acceptedCount": 5,
    "evidenceThin": false,
    "filtered": true,
    "lowConfidence": false,
    "rawCount": 12,
    "rejectedCount": 7,
    "rejectionReasons": {
     "low_query_overlap": 4,
     "low_relevance": 3
    }
   },
   "status": "queued"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://x402-api.aubr.ai/api/literature' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. 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/1a9e79e74a6c/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"1a9e79e74a6c"} 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 x402-api.aubr.ai.