the402 endpoint detail

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observer.137-184-67-179.sslip.io paid state-change-ledger

https://observer.137-184-67-179.sslip.io/paid/state-change-ledger

answers 402

Historical Bitcoin BTC-USD market-regime and state-transition dataset in CSV for quantitative backtesting, strategy research, model evaluation, audit trails, and autonomous-agent decision traceability. Includes timestamps, price at signal, market state, phase, coherence, commitment, directional pressure, signal labels, readiness, and transition reason. Experimental analytics only; not financial ad

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.05
Network
base
Pay to
0xfDe7913aBE6E4A4e3e3134CF050dF9030aE8EF48
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
993 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:30:09.882Z (4d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fobserver.137-184-67-179.sslip.io%2Fpaid%2Fstate-change-ledger"