For agents: JSON · MCP

longwatch

x402Not rated yetLast checked 2 hours ago

GET https://longwatch.dev/check

Listed in x402 List · Data: x402-list.com (CC BY 4.0)

Monitoring API for AI agents. Look up a page, RSS feed, crypto price, or SEC filings in one call ($0.001), or create a standing watch ($0.005) and poll for structured alerts since a cursor. Form 4 insider trades are parsed; 8-K item codes are decoded. Pay per call in USDC over x402 on Base and Solana — no API key or account. GET /demo is a free NVDA sample.

Price$0.001per price or market lookup · paid in USD on Base

Uptime100%

1/1 probes · 150 ms

Score–Needs 3 checks

Paid usage, 30 days0payers · 0 calls

Other endpoints from longwatch.dev

The same service's other paid functions that Haggly tracks, each with its own price. Functions outside Haggly's categories are not listed.

Endpoint	Category	Price per call
POST /watches	Crypto prices & market data	$0.005

How to buy

This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.

curl -i -X GET "https://longwatch.dev/check"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the response

Recent checks

Checked (UTC)	Result	Status	Time	Live price
2026-10-14 12:30	Valid 402	402	150 ms	$0.001

Receipts

No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.

What a check proves