Discover / polynews.news

polynews.news

■ Challenge detected

Real-time trade stream with market summaries (2hr rolling window, $500+ trades)

x402
Base
Solana
USDC

Listed price: $0.001
Challenge detected: 8 of the last 10 checks
Median response: 157 ms
Last checked: 17 Oct, 08:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://polynews.news/api/v1/feed
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

3 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://polynews.news/api/v1

GET/arbitrage$0.01Cross-platform arbitrage detection between Polymarket and Kalshi: matched markets, price spreads, fee-adjusted EV. Coverage: liquid Polymarket markets in politics/geopolitics/elections/tech/economy/finance; low-volume long-tail, sports, culture, and weather are not included.
GET/feed$0.001Real-time trade stream with market summaries (2hr rolling window, $500+ trades)
GET/price-history$0.005Historical price data with configurable timeframes (1H/6H/1D/1W/1M/ALL)

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

Showing 3 of 3 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/polynews.news

Recent checks

27 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)	Result	HTTP	Response
17 Oct, 08:59 UTC	Challenge detected	402	282ms
15 Oct, 23:42 UTC	No challenge detected		8002ms
14 Oct, 19:26 UTC	Challenge detected	402	80ms
13 Oct, 00:46 UTC	Challenge detected	402	1945ms
11 Oct, 06:02 UTC	Challenge detected	402	383ms
9 Oct, 21:31 UTC	Challenge detected	402	116ms
8 Oct, 15:35 UTC	Challenge detected	402	164ms
7 Oct, 09:33 UTC	Challenge detected	402	45ms
6 Oct, 09:33 UTC	No challenge detected		8001ms
27 Sept, 05:02 UTC	Challenge detected	402	150ms

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 polynews.news?

Its listed price is $0.001.

What payment terms does polynews.news advertise?

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

Where is polynews.news listed?

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

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