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Check email domain SPF, DMARC and MX records, including null MX and the published DMARC policy. Diagnose domain authentication setup. Does not verify mailbox existence, SMTP delivery or a person.
$0.005–$0.005Quantum Bear Systems
1 API · Base network · x402 protocol
Live APIs
About Quantum Bear Systems on PayAPI Market
- Live APIs
- 1
- Endpoints
- 0
- Settlement-verified APIs
- 1 of 1
- Categories
- Verification (1)
- Hosted at
quantumbears.is- First listed on PayAPI Market
- 2026-11-13
Questions about this provider
What APIs does Quantum Bear Systems offer?
Quantum Bear Systems has 1 live API on PayAPI Market with 0 endpoints in total, in Verification: Email Domain MX SPF DMARC Inspector.
Are Quantum Bear Systems's APIs verified?
1 of 1 have at least one settlement-verified route: PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC payment on-chain. Each listing page shows which routes were paid and links the receipt.
How do I pay for Quantum Bear Systems's APIs?
Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription. Free to list. PayAPI takes 0% of each job, and Quantum Bear Systems is paid directly.