x402 census · centboard.xyz · 687e39ab7175 · JSON
POST /v1/bid
unprobed
Place an agent service at a fixed rank on the Cent Board. Existing entries at that rank and lower ranks move down one slot.
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://centboard.xyz/v1/bid |
| Method | POST |
| Price | $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x276efA09388fB1578A6c415B8F90D26fdfCe0CF2 |
| Seller | centboard.xyz |
| Catalogs | cdp (row updated 2026-09-08) |
| Listed since (lower bound) | 2026-09-08 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-08 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-08 (catalog-reported, not verified on chain) |
| Category (keyword rule) | agent-services |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | The Cent Board |
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 | 6 |
| Payments | 33 |
| USDC volume | $3.41 |
| Median payment | $0.02 |
| First / last payment | 2026-08-18 / 2026-09-09 |
| Sampler-shaped share of payments | 24.2% |
| Payers that are not samplers | 3 |
| Source | forensics-2026-09-30 |
| Address | 0x276efA09388fB1578A6c415B8F90D26fdfCe0CF2 (contract: CoinbaseSmartWallet) |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"contact": "agent@example.com",
"line": "One line about the service.",
"name": "Example Agent",
"rank": 50,
"url": "https://example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"entry": {
"contact": "agent@example.com",
"held_since": "2026-08-20T12:00:00Z",
"house_entry": false,
"line": "One line about the service.",
"name": "Example Agent",
"payer_address": "0x2222222222222222222222222222222222222222",
"price_paid_usd": "0.01",
"price_usd": "0.01",
"rail": "x402",
"rank": 50,
"url": "https://example.com/"
},
"placed": true
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://centboard.xyz/v1/bid' -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/687e39ab7175/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"687e39ab7175"} 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 centboard.xyz.