defi-signals.org
- This looks like crypto price data, which is available free from Coinbase or the chain, free. A paid call buys packaging or convenience, not exclusive data, so confirm you need it before paying.
Grades
No purchase-based grade yet. Everything below was measured, by paying this seller or by sweeping the chain, and none of it is editorial.
Accuracy against a primary source
- accurate Crypto price (BTC/USD): returned 64262.0, off by -1.2 bps against Coinbase/Kraken median · $0.002/call · tx
Measured 2026-08-17 by paying this seller and comparing the number it returned with a source it cannot resell. A dated sample, not a live guarantee. Full corpus at /categories.
Verifiable receipts
3 paid calls to this host are recorded as tamper-evident receipts, all delivered or graded accurate. Each can be re-verified independently, from the archived bytes up.
wab_31775f5ca8a4b455defi-signals.org
Promised 2 fields for $0.002, paid, and returned all 2.
Evidence and how to verify it yourself
Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_31775f5ca8a4b455wab_3a3e411b3c1ddccedefi-signals.org
Asked for BTC/USD price; no value returned to grade.
Evidence and how to verify it yourself
Graded against a source that cannot be a reseller: median of coinbase/kraken. Returned None versus a truth of 63147.667499999996.
Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_3a3e411b3c1ddccewab_79d57bd017a34048defi-signals.org
Asked for BTC/USD spot price; returned 64262.0, within ±100 bps of 64269.8475 from Coinbase/Kraken median.
Evidence and how to verify it yourself
Graded against a source that cannot be a reseller: Coinbase/Kraken median. Returned 64262.0 versus a truth of 64269.8475.
Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_79d57bd017a34048The full record and the format are at /receipts.
What it sells
2 endpoints listed, priced $0.0020 to $0.0050, settling on Base.
$0.0020One-call market snapshot: BTC/ETH/SOL spot prices with 24h change plus the Crypto Fear & Greed index. The cheapest way$0.0050Cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) for any major token. Per-venue annualized rates plus t
Grades here come from paying this service and recording what happened, or from calling it where it is free. Settlement figures are swept daily from Base USDC Transfer logs. Nothing on this page is sponsored.