x402 census · x402-solvers.onrender.com · 4634d5250696 · JSON
POST /v1/cycles/probe
unprobed
Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Cheap boolean + magnitude signal for trading agents. POST a swap-rate graph, get back whether a profitable cycle exists and how large — without the path.
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://x402-solvers.onrender.com/v1/cycles/probe |
| Method | POST |
| Price | $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xA238AF2e66D9d7301F2D02932931851DdF900Dcd |
| Seller | x402-solvers.onrender.com |
| Catalogs | cdp (row updated 2026-09-25) |
| Listed since (lower bound) | 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-25 |
| CDP quality counters | 4 calls and 4 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain) |
| Category (keyword rule) | money-movement |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | x402-solvers · defi, arbitrage, trading, signal |
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 | 4 |
| Payments | 4 |
| USDC volume | $0.004 |
| Median payment | $0.001 |
| First / last payment | 2026-08-10 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xA238AF2e66D9d7301F2D02932931851DdF900Dcd (contract) |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"edges": [
{
"dex": "aerodrome",
"fee": 0.0005,
"from": "USDC",
"rate": 0.00031,
"to": "WETH"
},
{
"dex": "uniswap",
"fee": 0.0005,
"from": "WETH",
"rate": 3300,
"to": "USDC"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"edgesEvaluated": 3,
"hasArbitrage": true,
"hops": 3,
"nodesEvaluated": 3,
"profitBucket": ">2%",
"tier": "probe"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://x402-solvers.onrender.com/v1/cycles/probe' -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/4634d5250696/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"4634d5250696"} 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 x402-solvers.onrender.com.