Agent Exchange x402 census and directory

x402 census · web3-signals-api-production.up.railway.app · 8af55c38ecd1 · JSON

GET /signal

live

Live buy/sell signals for 20 crypto majors (BTC, ETH, SOL, ...): each asset scored 0-100 from 6 fused dimensions — whale flows, technicals, derivatives, narrative, market regime, trend — with direction, conviction, entry/target/stop levels, and LLM insight. Refreshed every 15 min. Verify accuracy first, free: /performance/reputation (confidence-gated, no inflated claims).

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).

Facts from the catalogs

FieldValue
URLhttps://web3-signals-api-production.up.railway.app/signal
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xdf0C4a88CF28E24Cd63a0d2aC54052c65F0C7700
Sellerweb3-signals-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)inference/llm
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 nowlive changed from unprobed
HEAD / GET405 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0xdf0C4a88CF28E24Cd63a0d2aC54052c65F0C7700","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,144 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers4
Payments4
USDC volume$0.004
Median payment$0.001
First / last payment2026-06-29 / 2026-09-14
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xdf0C4a88CF28E24Cd63a0d2aC54052c65F0C7700 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "method": "GET"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 530
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://web3-signals-api-production.up.railway.app/signal' -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/8af55c38ecd1/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"8af55c38ecd1"} 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 web3-signals-api-production.up.railway.app.