x402 census · x402.ottoai.services · c6da69b7fb95 · JSON
GET /yield-alpha
live
Best DeFi yield opportunities across stablecoins, ETH, and BTC with risk ratings and APY comparisons.
Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://x402.ottoai.services/yield-alpha |
| Method | GET |
| Price | $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, base |
| payTo | 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808 |
| Seller | x402.ottoai.services |
| Catalogs | cdp (row updated 2026-09-27), payai (row updated 2025-10-25) |
| Listed since (lower bound) | 2025-10-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-27 |
| CDP quality counters | 22 calls and 20 unique payers in 30 days, last call 2026-09-27 (catalog-reported, not verified on chain) |
| Category (keyword rule) | trading-signals |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Otto AI · defi yield, yield farming, apy comparison, stablecoin yield |
Unpaid probe (census of 2026-09-30)
| Field | Value |
|---|---|
| Probed at | 2026-09-30T23:13:52.619Z |
| HEAD | 402 |
| GET | 402 |
| Verdict | live live: valid 402 to an unpaid GET |
| 402 carried in | body |
| x402Version in the 402 | 2 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"2000","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Live payTo equals catalog payTo | yes |
| extensions.bazaar in the 402 | no |
| PAYMENT-REQUIRED header | no |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / railway-hikari / * |
| Latency | 6,975 ms |
| Error | payment_required |
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 | 134 |
| Payments | 926 |
| USDC volume | $9.94 |
| Median payment | $0.001 |
| First / last payment | 2026-05-05 / 2026-09-30 |
| Sampler-shaped share of payments | 92.4% |
| Payers that are not samplers | 5 |
| Source | forensics-2026-09-30 |
| Address | 0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808 |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {},
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 481
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://x402.ottoai.services/yield-alpha' -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/c6da69b7fb95/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c6da69b7fb95"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on x402.ottoai.services.