Discover / x402-solvers.onrender.com

x402-solvers

□ No challenge detected

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.

x402
Base
USDC

Listed price: $0.001
Challenge detected: 0 of the last 9 checks
Last checked: 16 Oct, 13:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://x402-solvers.onrender.com/v1/cycles/probe
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

POSThttps://x402-solvers.onrender.com/v1/cycles/probe$0.001Detect 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.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 1 of 1 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/x402-solvers.onrender.com

Recent checks

26 Sept 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 13:59 UTC	No challenge detected	404	243ms
14 Oct, 23:56 UTC	No challenge detected	404	361ms
13 Oct, 10:39 UTC	No challenge detected	404	124ms
11 Oct, 10:02 UTC	No challenge detected	404	196ms
9 Oct, 21:31 UTC	No challenge detected	404	309ms
8 Oct, 15:35 UTC	No challenge detected	404	386ms
7 Oct, 09:33 UTC	No challenge detected	404	120ms
6 Oct, 09:33 UTC	No challenge detected	404	247ms
26 Sept, 17:02 UTC	No challenge detected	404	291ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 16 Oct, 13:59 UTC, we detected no payment challenge.

What price is recorded for x402-solvers?

Its listed price is $0.001.

What payment terms does x402-solvers advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is x402-solvers listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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