AtData vs Webbula (2026): which should you pick?

AtData

• Developers adding email checks to sign-up or checkout through a REST API
• Senders with large lists who want scheduled re-checks of stored addresses
• Teams that want demographic or identity data alongside verification

Webbula

• Marketers who want threat checks alongside verification
• Occasional list cleaners buying credits as needed
• Small teams with steady monthly volume

AtData

• No prices are published on pages we could read: the site's main pages answered with a bot check, so pricing is recorded as unverified.
• Getting an API key starts with a request to AtData's support, per the Getting Started guide; there is no self-serve signup described in the docs.
• The quality score is part of a SafeToSend subscription and is not available to credit-based users.
• Documentation is API-first, and no mailbox warm-up or DMARC monitoring is described.

Webbula

• Per-credit rates for On Demand and add-on credits sit behind a slider and were not read.
• Enterprise needs are handled through sales rather than listed plans.
• Webbula also sells data appends and audience segments that are separate from Zuvo.
• No mobile or desktop apps are listed; use is through the web platform and API.

AtData

SafeToSend verification

A GET endpoint that checks syntax, corrects misspellings, checks the mailbox and domain, and flags spam traps and other high-risk addresses. It returns one of 30 status codes.

Quality score

A 0 to 10 score based on open signals, website visits and e-commerce activity tied to the address. The docs say it comes with a SafeToSend subscription and is not available to credit users.

List Guard monitoring

Checks a stored email list for dead and toxic addresses on a regular basis. Results can be read in the InstantData account or pulled by API as CSV.

Bulk list API

Runs files of up to 1,000,000 records through SafeToSend, email validation, demographics or identity matching.

Identity matching and demographics

Finds an alternate email or postal address from one point of contact, and returns demographic and behavioral data for a single email or postal address.

Website visitor ID and fraud APIs

The docs also cover a website visitor identification script and a separate Fraud Prevention API that uses email intelligence for risk decisions.

Webbula

Four Protect scans

Threat Detection plus Verification, Threat Detection only, Verification only, and Lead Validation, all on both plans.

Email verification

Checks format, syntax, domain, MX records and mailbox signals, and sorts addresses into valid, invalid, risky, catch-all or unknown.

Threat detection

The Core plan page cites more than 50 threat detection methods, with results grouped by risk category.

Bulk, batch or API

Verification is delivered by bulk processing, batch verification or API integration.

Team tools

On Demand includes member invitations, auto-replenishment rules and detailed usage reports.

AtData

Pricing could not be confirmed. See atdata.com.

Webbula

• On DemandCustom

  No monthly charge; credits bought as needed at volume-based rates. The per-credit rates were not readable in the page text.

• Core$24.95

  per month for 2,500 credits

  Unused credits roll over month to month, and extra credits cost 10% less than On Demand rates.