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Crypto Signal Validator
x402
Crypto Signal Validator is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Validates a previously retrieved crypto trading signal by signal_id, returning its live status, entry window, price vs entry zone, spread, and recomputed maker/taker economics.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is this crypto opportunity still valid right now? Give a signal_id and receive its live status (ACTIVE/STALE/INVALIDATED), remaining entry window in seconds, current price versus the entry zone, spread, data quality, maker/taker economics recomputed at the current price, whether the upstream execution blockers changed, and any invalidation reasons. Freshness first: an expired entry is reported as expired. Advice only: no execution, no custody, no position sizing. Paid per request.
Output
Returns the signal's live status (ACTIVE, STALE, or INVALIDATED), remaining entry window in seconds, current price versus the entry zone, spread, data quality indicator, recomputed maker/taker economics at the current price, whether upstream execution blockers have changed, and any specific invalidation reasons if the signal is no longer valid.
Example use cases
Pre-trade signal freshness check
“Before I act on this signal, can you validate signal ID sig_7f3d9a and tell me if it's still ACTIVE, how much time is left in the entry window, and whether the price is still within the entry zone?”
Automated opportunity staleness detection
“I retrieved a crypto long opportunity earlier with signal ID sig_44bc12 — can you check right now if it's been invalidated or gone stale, and tell me the invalidation reasons if so?”
Maker/taker economics recheck at current price
“Signal sig_9e1f77 looked good earlier but prices moved — can you revalidate it now and show me the updated maker/taker economics and spread at the current price?”
Technical details
Endpoint
POSThttps://agentdata-api.sander-van-aard.workers.dev/crypto/validateWhen to prefer
Use this endpoint when you already have a signal_id from /crypto/scan or /crypto/verdict and need a real-time freshness check before acting — it is cheaper and faster than re-fetching the full signal. Prefer this over /crypto/poll when you need full recomputed economics (not just a version diff), and over /crypto/verdict when you already have the signal and just need live validation rather than a new signal fetch.
Side effects
- Unknown or expired signal_id returns an error or INVALIDATED status
- Network latency from upstream price feeds may cause slightly stale price data
- Payment failure (x402) blocks the request entirely
- Malformed request body results in a 400-level error
- Upstream signal provider outage may cause degraded data quality scores
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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