Discover / signal-engine-production-d88d.up.railway.app

signal-engine-production-d88d.up.railway.app

■ Challenge detected

Individual arena strategy signal

Listed price
$0.001
Challenge detected
10 of the last 10 checks
Median response
115 ms
Last checked
17 Oct, 08:59 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://signal-engine-production-d88d.up.railway.app/v1/arena/rsi_7_extremes/ETH
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
10 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.

Base URLhttps://signal-engine-production-d88d.up.railway.app/v1/arena

  • GET/vwap_reversion/SOL$0.001Individual arena strategy signal
  • GET/vwap_reversion/DOGE$0.001Individual arena strategy signal
  • GET/ema_5_breakout/DOGE$0.001Individual arena strategy signal
  • GET/vwap_reversion/BTC$0.001Individual arena strategy signal
  • GET/rsi_7_extremes/ETH$0.001Individual arena strategy signal
  • GET/rsi_7_extremes/SOL$0.001Individual arena strategy signal
  • GET/rsi_7_extremes/BTC$0.001Individual arena strategy signal
  • GET/rsi_7_extremes/DOGE$0.001Individual arena strategy signal
  • GET/vwap_reversion/ETH$0.001Individual arena strategy signal
  • GET/rsi_reversion_swing/SOL$0.001Individual arena strategy signal

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

Showing 10 of 10 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/signal-engine-production-d88d.up.railway.app

Recent checks

30 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.17 Oct 2026
All 10 checks
When (UTC)ResultHTTPResponse
17 Oct, 08:59 UTCChallenge detected402299ms
16 Oct, 08:13 UTCChallenge detected402119ms
14 Oct, 23:56 UTCChallenge detected402105ms
13 Oct, 20:45 UTCChallenge detected402105ms
11 Oct, 19:34 UTCChallenge detected402196ms
10 Oct, 03:32 UTCChallenge detected402108ms
9 Oct, 00:47 UTCChallenge detected402106ms
7 Oct, 21:31 UTCChallenge detected402132ms
6 Oct, 18:37 UTCChallenge detected402381ms
30 Sept, 17:04 UTCChallenge detected402111ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 08:59 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for signal-engine-production-d88d.up.railway.app?

Its listed price is $0.001.

What payment terms does signal-engine-production-d88d.up.railway.app 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 signal-engine-production-d88d.up.railway.app listed?

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

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