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Domain DNS Check
x402
Domain DNS Check is a paid API for AI agents from flat-rate-llm.kikoribera03.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns a comprehensive DNS profile for a single domain including registration status, A/AAAA records, nameservers, MX, SPF, DMARC, DNSSEC, and parked-site detection in one call.
Price / call$0.005
Success—
StatusUnknown
How this service works
60 paid endpoints with no metering, no API key and no account. Each endpoint has one flat price per call, whatever the size of the request: LLM completions with automatic failover across several large models, read-only EVM tooling over Base, Ethereum, Polygon, Arbitrum and Optimism, and pure crypto utilities that touch no network.
Output
A JSON object containing: the normalized domain string, a boolean for registration status, arrays of A (IPv4) and AAAA (IPv6) address records, nameserver records, MX server records, a boolean for DNSSEC, a boolean for whether the domain appears parked, a boolean for whether it has an active website, and a boolean for whether it accepts email.
Example use cases
Email deliverability pre-send check
“Before we send our marketing campaign, check if recipientcompany.com actually accepts email and has MX records configured — I don't want bounces.”
Competitive domain monitoring
“I have a list of competitor domains to audit — start with rivalstartup.com and tell me everything: is it registered, does it have a real website, is it parked, and what nameservers is it using?”
Security posture review
“Check the DNS security setup for ourstartup.com — specifically whether DNSSEC is enabled and if they have SPF and DMARC records in place.”
Technical details
Endpoint
POSThttps://flat-rate-llm.kikoribera03.workers.dev/v1/red/domain-checkWhen to prefer
Prefer this endpoint when you need a comprehensive, all-in-one DNS snapshot of a single domain without setting up an account or API key. It is ideal for agents iterating through a list of domains one at a time, checking deliverability before sending email, auditing domain infrastructure, or verifying security posture. Unlike raw DNS tools, it synthesizes multiple record types and adds higher-level flags (parked, hasWebsite, acceptsEmail) in a single call.
Side effects
- Domain not found or unregistered — registered field returns false with empty record arrays
- Invalid domain input — malformed string that cannot be reduced to a valid hostname
- DNS timeout — live DNS query takes too long and returns an error
- Transient DNS resolution failure — upstream resolver unavailable
- Payment not received — x402 payment required error if USDC payment is missing or insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domainrequired | string | The domain to check. A full URL or an email address is accepted and reduced to its host. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| a | array | |
| mx | array | |
| aaaa | array | |
| dnssec | boolean | |
| domain | string | |
| parked | boolean | |
| hasWebsite | boolean | |
| registered | boolean | |
| nameservers | array | |
| acceptsEmail | boolean |
Tags
x402
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