Agent Exchange x402 census and directory

x402 census · agent-drift-api-production.up.railway.app · c7d038360c10 · JSON

POST /v1/tests

blocked

Register a golden test case that monitors an API endpoint for behavioral drift (compares live responses against expected output). Returns the created test as JSON.

Verdict: not verified by an unpaid GET. 401/403/429: auth or bot protection. This says nothing about whether the route works when called as declared.

Facts from the catalogs

FieldValue
URLhttps://agent-drift-api-production.up.railway.app/v1/tests
MethodPOST
Price$0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x1394A802c94ab096abBd91CcC632843b03f46614
Selleragent-drift-api-production.up.railway.app
Catalogscdp (row updated 2026-09-14)
Listed since (lower bound)2026-09-14 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-14
CDP quality counters2 calls and 2 unique payers in 30 days, last call 2026-09-14 (catalog-reported, not verified on chain)
Category (keyword rule)dev-tools/utilities
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T14:13:42.000Z (cron)
Verdict nowblocked changed from unprobed
HEAD / GET401 / 401
accepts[0]none
Live amount equals catalog pricenot comparable
Latency1,268 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers4
Payments7
USDC volume$0.009
Median payment$0.001
First / last payment2026-09-14 / 2026-09-29
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x1394A802c94ab096abBd91CcC632843b03f46614

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "endpoint_method": "GET",
   "endpoint_url": "https://api.example.com/data",
   "expected_output": "temperature",
   "match_mode": "contains",
   "name": "weather-api-check",
   "schedule": "0 */6 * * *"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "id": "test-uuid",
   "name": "weather-api-check",
   "status": "active"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://agent-drift-api-production.up.railway.app/v1/tests' -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/c7d038360c10/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c7d038360c10"} 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 agent-drift-api-production.up.railway.app.