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PayPerByte Crypto Regime Signal
x402
PayPerByte Crypto Regime Signal is a paid API for AI agents from x402.payperbyte.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Returns a BTC or ETH market regime classification (bull/bear/neutral) plus realized-volatility above/below call for a 4-hour or 24-hour horizon, delivered with a cryptographically signed EIP-712 receipt anchored on Base via EAS.
Price / call$0.02
Success—
StatusUnknown
How this service works
BTC/ETH regime + realized-vol above/below call, 4h or 24h horizon. Signed EIP-712 delivery receipt, anchored on Base via EAS; scoring is a published deterministic rule against public Chainlink rounds, independently recomputable. Full method: https://x402.payperbyte.io/feeds
Output
A JSON payload containing the market regime label (e.g. bull/bear/neutral) for the requested asset and horizon, a realized-volatility above/below call, a confidence score, and an EIP-712 signed delivery receipt cryptographically anchored on the Base blockchain via Ethereum Attestation Service (EAS). The scoring is a deterministic, publicly auditable rule applied against Chainlink oracle rounds, independently recomputable by the caller.
Example use cases
Pre-trade regime check for BTC bot
“Before my trading bot places a BTC position, can you get me the current 4-hour market regime signal for BTC along with whether realized volatility is above or below the call threshold?”
ETH vol monitoring for options strategy
“I'm running an ETH options strategy and need to know whether ETH realized volatility is above or below the threshold on a 24-hour horizon — give me the regime classification and confidence score.”
Verifiable signal for compliance audit
“Pull me a cryptographically signed market regime signal for ETH on the 4-hour horizon — I need the EAS-attested payload so I can prove the signal source was independent and deterministically scored from Chainlink.”
Technical details
Endpoint
POSThttps://x402.payperbyte.io/feeds/regime-signalWhen to prefer
Choose this endpoint when you need a cryptographically verifiable, independently auditable market regime and realized-volatility signal for BTC or ETH, particularly for agentic workflows that require provable data provenance (via EIP-712 + EAS on Base). Prefer it over generic price feeds when the use case demands on-chain attestation, when you need a structured bull/bear/neutral classification rather than raw prices, or when a 4h or 24h realized-vol call is specifically required. Not suitable for real-time tick data, order execution, or assets other than BTC/ETH.
Side effects
- Unsupported asset: SOL is explicitly closed (Chainlink feeds on Base have unusable heartbeat for 4h/24h windows); returns error if submitted
- Invalid horizon: only 4 or 24 are valid values for h; other integers return a validation error
- Payment failure: x402 micropayment of $0.02 USDC not settled; endpoint returns 402 Payment Required
- Chainlink feed unavailability: if underlying oracle rounds are stale or unavailable, signal cannot be computed
- Base network congestion: EAS attestation anchoring may be delayed or fail, impacting signed receipt delivery
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| h | integer | Horizon in hours — 4 or 24. rv_threshold/rv_call/confidence are computed against this SAME horizon's own non-overlapping window history; regime always uses trailing 24h data regardless of h. |
| asset | string | The asset to classify. SOL is closed as an option: both Chainlink SOL/USD feeds on Base have an 86,400s heartbeat, unusable for 4h/24h windows. |
Tags
x402
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