x402 census · api.vextorium.com · 3bfaec57bfc3 · JSON
POST /cotizacion-dex-pago
unprobed
On-chain swap quote on Base from Uniswap v3 QuoterV2 across all fee tiers (0.01%, 0.05%, 0.3%, 1%): output amount, unit price, best pool and gas estimate. Accepts symbols (WETH/ETH, USDC, USDT, DAI, cbBTC) or token addresses. Read-only, no swap executed.
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://api.vextorium.com/cotizacion-dex-pago |
| Method | POST |
| Price | $0.008 USDC = 8000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf |
| Seller | api.vextorium.com |
| Catalogs | cdp (row updated 2026-09-29) |
| Listed since (lower bound) | 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-29 |
| CDP quality counters | 3 calls and 2 unique payers in 30 days, last call 2026-09-29 (catalog-reported, not verified on chain) |
| Category (keyword rule) | money-movement |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Vextorium · dex, uniswap, swap-quote, base, defi |
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 | 1 |
| Payments | 1 |
| USDC volume | $0.003 |
| Median payment | $0.003 |
| First / last payment | 2026-09-29 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf (contract: CoinbaseSmartWallet) |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"cantidad": 1,
"token_entrada": "WETH",
"token_salida": "USDC"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"mejor_pool_comision_pct": 0.05,
"precio_unitario": 2688.58,
"salida": {
"cantidad": 2688.58,
"token": "USDC"
}
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://api.vextorium.com/cotizacion-dex-pago' -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/3bfaec57bfc3/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3bfaec57bfc3"} 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.vextorium.com.