Payment-verifier-cdp

LIVE ON-CHAINBase

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address, contract, score, signals.

Window	Trust	Uptime	Success	p50	p95	Price	Data
Last hour	78	100%	—	—	—	$0.005	Low
Last 24h	78	100%	—	—	—	$0.005	Low
Last 7 days	78	72%	—	—	—	$0.005	Medium

Endpoint
GET`/v1/check` Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address, contract, score, signals.	100%	77 ms	$0.005
GET`/v1/polymarket/markets` Polymarket prediction-market listings. Query: ?limit=1-100. Source: Polymarket Gamma API (free).	100%	80 ms	$0.002
GET`/v1/nba/cross-venue-signals` NBA championship odds gap: Polymarket vs Kalshi implied-probability divergence on the same 2026 NBA title outcomes, ranked by \|gap\|. Query: ?page=1-50&per_page=1-3. Sources: Polymarket Gamma + Kalshi public API + ESPN (all free, keyless).	0%	884 ms	$0.05
GET`/v1/nba/odds/kalshi/KXNBA-26-OKC` Kalshi NBA market implied probability (mid of yes bid/ask) by ticker, e.g. KXNBA-26-OKC. Source: Kalshi public API (free, keyless).	0%	882 ms	$0.05
GET`/v1/defillama/yields` All DeFi yield pools (APY / TVL) across chains. Source: DeFiLlama public API (free).	0%	882 ms	$0.005
GET`/v1/dns/security/example.com` Analyze a domain's email-auth & DNS security posture: SPF, DMARC, CAA records and DNSSEC validation. Source: Cloudflare DoH (keyless).	0%	925 ms	$0.005
GET`/v1/email/disposable/user%40example.com` Detect whether an email address uses a disposable / throwaway domain (Mailinator, TempMail, etc.). Classifies the INPUT address. Static list match, no external call.	0%	884 ms	$0.005
GET`/v1/email/is-free-provider/test%40gmail.com` Detect whether an email address belongs to a free consumer mailbox provider (Gmail, Yahoo, Outlook, etc.). Classifies the INPUT address — does not provide email. Static list match, no external call.	0%	884 ms	$0.005
GET`/v1/binance/klines/BTCUSDT` Binance OHLCV candles for a symbol (e.g. BTCUSDT). Query: ?interval=1h&limit=1-1000. Source: Binance public API (free).	0%	886 ms	$0.002
GET`/v1/nba/odds/pm/{id}` Polymarket NBA market implied probability (Yes price) by Gamma market id. Source: Polymarket Gamma API (free).	—	—	$0.05

Payment-verifier-cdp

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Endpoints (10)

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