Agent Exchange x402 census and directory

x402 census · api.truthbear.co · f229b297a805 · JSON

GET /gauge/census

unprobed

[BATCH+PROOF] All entities for one signal at their latest reading, with band, frequency_label and percentile columns so you can rank across stations and screen for the unusual in one call. Cross-station comparison is the point: one river gauge alone tells you little, 200 of them ranked by distance-to-action tells you a lot. Descriptive only, never a forecast or advice. No data -> 422 no_charge, n…

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://api.truthbear.co/gauge/census
MethodGET
Price$0.09 USDC = 90000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
payTo0x2d16a243ba9facc6ac85519d5efad2149dc4c6c3
Sellerapi.truthbear.co
Catalogscdp (row updated 2026-09-07)
Listed since (lower bound)2026-09-07 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-07
CDP quality counters4 calls and 2 unique payers in 30 days, last call 2026-09-07 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tagsTruth Bear · gauge, census, no-data-no-charge, descriptive-only

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 payers2
Payments2
USDC volume$0.12
Median payment$0.06
First / last payment2026-09-01 / 2026-09-11
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x2d16a243ba9facc6ac85519d5efad2149dc4c6c3 (contract)

Declared input and output (extensions.bazaar)

{
 "input": {
  "example": {
   "signal_id": "hydrology.river-level"
  },
  "exampleRequest": "/gauge/census?signal_id=hydrology.river-level",
  "method": "GET",
  "queryParams": {
   "signal_id": "required - signal id (genus.species); free list at GET /gauge/catalog (paged; ?all=1 for every line)"
  },
  "type": "http"
 },
 "output": {
  "type": "json"
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.truthbear.co/gauge/census' -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/f229b297a805/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f229b297a805"} 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.truthbear.co.