WHOIS & domain data · REST API
WHOIS & domain data API — one endpoint for WHOIS data, domain data and DNS data, ready to wire into your CRM, agent or warehouse
TradeWind wraps WHOIS & domain data into a single REST API — WHOIS, DNS, SSL and registration data for the major global TLDs. Search on demand and get fields like registrant, registrar, created / expiry dates, nameservers and SSL issuer back in one call, without maintaining your own scrapers or bouncing between SaaS tools and CSV exports. Great for spotting new sites, DTC outbound and compliance / risk checks.
- 📦 WHOIS, DNS, SSL and registration data for the major global TLDs
- 🧾 Fields: registrant, registrar, created / expiry dates, nameservers and SSL issuer
- 🔌 REST API + SDK, ready for CRM / agent
- 💰 Pay per valid record — no seat fee
Price advantage
Same data, about 10% cheaper than buying direct
Below the lowest list price of Apollo, Hunter, Snov.io and RocketReach
No seat fees or annual contracts — pay per call
Credits are only used when data is found
Repeat the same lookup within 30 days for free
One account for dozens of B2B contact, company, customs and maps sources — free credits on sign-up.
Why teams use TradeWind's WHOIS & domain data API
| Dimension | TradeWind API | Legacy vendors |
|---|---|---|
Access | REST API + SDK | WHOIS lookup sites or one registrar's API |
Coverage | WHOIS, DNS, SSL and registration data for the major global TLDs | Limited to a single source |
Structured fields | ||
On-demand & incremental fetch | ||
Million-row async batches | ||
Chain with contact / email / agent | ||
Billing model | Per valid record | Subscription or seat |
Own keys |
Why builders pick TradeWind API
Skip stitching multiple sources — TradeWind unifies WHOIS & domain data (WHOIS data, domain data and DNS data) into one field shape and error contract.
Returns "registrant, registrar, created / expiry dates, nameservers and SSL issuer" already structured — ready to persist or hand to an agent.
Every endpoint plugs into LangGraph, Coze, n8n or Dify as a data tool — your agent decides when to call it.
Charged only when we hit. No seat fee, no minimum spend, and own keys carry only a ~10% service fee.
Typical use cases
Plug WHOIS & domain data into Salesforce, HubSpot or Feishu Base — fill only the fields you're missing.
Serve as an agent data tool that closes the loop with research, reasoning and outreach.
Incrementally sync into BigQuery, Snowflake or MaxCompute for market or account analytics.
Expose the capability under your own brand — the multi-source plumbing stays invisible.
Pricing & billing
- 1 USD = 40 credits, prepaid
- Charged on hit only — misses cost nothing
- No seat fees, no minimum spend
- Own keys: only a ~10% service fee
- Dedicated SLA and private deployment on Enterprise
FAQ
›How much does TradeWind's WHOIS & domain data cover?
WHOIS, DNS, SSL and registration data for the major global TLDs. Run a few real queries on the free tier to sanity-check coverage before you commit.
›How fresh is the data?
Sources refresh daily, weekly or monthly depending on the upstream. Every response exposes a lastmod timestamp for incremental sync.
›Can I combine it with contact / email / agent APIs?
Absolutely. WHOIS & domain data is usually chained with contact match, email verify and agent research — all inside one TradeWind API surface.
›Is billing subscription or usage-based?
Usage-based — per call or per valid record. Prepaid credits, no seats, no minimums.
›Is the data compliant?
Every dataset comes from public or licensed commercial sources, deduped and cleaned. TradeWind aligns with GDPR and CCPA and honors data-deletion requests.