api.cryptoetfsentinel.com v1 events

https://api.cryptoetfsentinel.com/v1/events

payable

Crypto ETF Sentinel — Activity feed of recent notable SEC filings + comment letters for US spot crypto ETFs (Bitcoin, Ethereum, Solana, XRP and more; last 60 days by default). Tracks S-1, 424B, 8-A12B, CERT, EFFECT and review correspondence. Stage-filtered to drop trading-stage housekeeping noise — a 'what's happening in crypto ETF regulation' heartbeat for monitoring agents.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.10
Network: base
Pay to: 0x169Bf49c6ee5A179190121Ab8D180B50e31683d1
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 134 ms
Payment options: 2 usable of 2
Last checked: 2026-08-10T09:14:32.410Z (1d ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.cryptoetfsentinel.com%2Fv1%2Fevents"