x402 census · data.greeneris.io · 5bb661d8b892 · JSON
GET /v1/dev/hn-top
unprobed
Current Hacker News front page via the official Firebase API, fanned out and merged into one payload: id, title, url, score, comment count and age in minutes per story. Query: ?n=20 (1-30 stories) &min_score=100 (optional score floor). Real-time tech signal for launch/incident/buzz detection. 5min cache.
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://data.greeneris.io/v1/dev/hn-top |
| Method | GET |
| Price | $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x6ab8efe305cce67daa48c97bde29c04402822dff |
| Seller | data.greeneris.io |
| Catalogs | cdp (row updated 2026-09-12) |
| Listed since (lower bound) | 2026-09-12 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-12 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-12 (catalog-reported, not verified on chain) |
| Category (keyword rule) | trading-signals |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | eu-verify · hackernews, tech, news, trending, developer |
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 | 27 |
| Payments | 79 |
| USDC volume | $0.36 |
| Median payment | $0.005 |
| First / last payment | 2026-07-16 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x6ab8efe305cce67daa48c97bde29c04402822dff (contract: EIP7702Proxy) |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"min_score": 100,
"n": 10
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"count": 2,
"source": "Hacker News official Firebase API (live front page)",
"stories": [
{
"age_min": 254,
"comments": 141,
"id": 48888518,
"score": 312,
"title": "Show HN: A fast SQLite VFS",
"url": "https://example.dev/sqlite-vfs"
},
{
"age_min": 402,
"comments": 87,
"id": 48888193,
"score": 205,
"title": "PostgreSQL 19 released",
"url": "https://postgresql.org/19"
}
]
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://data.greeneris.io/v1/dev/hn-top' -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/5bb661d8b892/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5bb661d8b892"} 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 data.greeneris.io.