Discover / perp-gap-api.perpgap.workers.dev

Perp Gap API

■ Challenge detected

Bulk export of one UTC day of live 30-minute snapshots for all tracked stock perps (top 40 auto-discovered tickers by open interest × up to 48 snapshots): trade.xyz vs stock vs xStock gaps, basis, funding, OI, plus Aster and Lighter marks, funding and cross-venue gaps. JSON or CSV.

x402
Base
Solana
USDC

Listed price: $0.25
Challenge detected: 2 of the last 3 checks
Median response: 382 ms
Last checked: 17 Oct, 09:26 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://perp-gap-api.perpgap.workers.dev/export
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

4 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://perp-gap-api.perpgap.workers.dev

GET/gaps$0.01Gap table for trade.xyz (Hyperliquid HIP-3) stock perps: perp mark/oracle vs live stock price and Solana xStock, basis, hourly and annualized funding, open interest; venues=all adds Aster and Lighter marks, funding and cross-venue spreads. Use when an agent needs current premium/discount or funding arbitrage signals across many tokenized stocks at once (cheapest call). Errors: 402 payment required, 502 upstream error.
GET/verdict$0.03Rule-based long/short/watch/avoid verdict with score, confidence and reasons for one trade.xyz stock perp, combining perp-vs-stock gap, basis, funding, SEC EDGAR insider/8-K/13D/dilution filings (14d), news and retail attention. Use when an agent needs a quick directional signal or a sanity check on a single ticker before trading. Data, not financial advice. Errors: 400 missing ticker, 402 payment required, 404 not listed, 502 upstream.
GET/export$0.25Bulk export of one UTC day of live 30-minute snapshots for all tracked stock perps (top 40 auto-discovered tickers by open interest × up to 48 snapshots): trade.xyz vs stock vs xStock gaps, basis, funding, OI, plus Aster and Lighter marks, funding and cross-venue gaps. JSON or CSV.
GET/research$0.03One-call research card for a single stock perp: spot quote and US session (pre/regular/after-hours/overnight/closed), perp prices on trade.xyz, Aster and Lighter, gap % vs spot and vs Solana xStock, funding, basis, last 72h gap history and the rule-based long/short/watch/avoid verdict. Use when an agent needs everything about one ticker before trading or answering a user. Data, not advice. Errors: 400 missing ticker, 402, 404 not listed, 502 upstream.

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

Showing 4 of 4 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/perp-gap-api.perpgap.workers.dev

Recent checks

14 Oct 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 3 checks

When (UTC)	Result	HTTP	Response
17 Oct, 09:26 UTC	Challenge detected	402	431ms
16 Oct, 08:13 UTC	Challenge detected	402	333ms
14 Oct, 21:46 UTC	No challenge detected	404	384ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 09:26 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 Perp Gap API?

Its listed price is $0.25.

What payment terms does Perp Gap API 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 Perp Gap API listed?

In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.

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