Datacircle

NullBounce pricing and alternatives: email verification API

NullBounce's sitellms.txtBest email verification API in 2026
33% complete: 2 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsThe cheapest of the 1,849 plans we rank by price is treg, top-up from $10. treg asks one provider after another until one answers. treg costs $0.00 per 1,000 emails on average. You pay $26.95 per 1,000 emails when no provider answers.
Plan: 100 free credits one of NullBounce's 12 plans
Call: POST /api/v1/validate/ NullBounce's only call
API: Email verification API NullBounce's only API

About this item

  • Live. The call checks the email when you make it.
  • 2 of the 6 key fields we check. Address, Deliverability.
  • Nothing to pay. You get 100 credits once, enough for 100 calls. Credits never expire.
  • One call. You send email to POST /api/v1/validate/. The call returns whether the address takes mail.
  • Who can get it: every newly registered account, no credit card required. Keep data: no limit. Use data: with conditions.

NullBounce: email verification API alternatives

The table starts with NullBounce's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to NullBounce's. Each plan in the table gives live data.

NullBounce, $1,500 packVerimail, $299 monthlyBillionVerify, $720 yearly, Business, POST /verify/bulkVerifySwift, $1,499.99 packVeriMails, $150 monthly, Scale, POST /api/verify/single
$ per 1,000 emails$0.30$0.299$0.30$0.30$0.30
Completeness33%50%67%50%67%
Billingpay firstmonthlyyearlypay firstmonthly
Pay$1,500$299$720$1,499.99$150
Enough for5,000,000 calls1,000,000 calls a month2,400,000 results a year5,000,000 calls500,000 calls a month
Freshnesslivelivelivelivelive
Who can get itanyonebusinesses and professionals, not directed at anyone under 18anyone at least 18 years old and legally able to enter into a contract, for their internal business purposes onlyanyone 18 or olderanyone

Every email verification API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-27.

  1. nullbounce.com/docs/api
  2. nullbounce.com/docs/billing
  3. nullbounce.com/docs/legal/terms-of-use
  4. nullbounce.com/docs/understanding-results
  5. nullbounce.com/email-verification-api
  6. nullbounce.com/pricing

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Address
  • Deliverability
  • Confidence, not in the answer
  • Name, not in the answer
  • Place, not in the answer
  • Company, not in the answer
Price
$ per 1,000 emails$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
Not found
$ per 1,000$0.00
In their words
Their pitchVerify email deliverability in real time with a lightweight, synchronous HTTP request. Protect registration forms, checkouts, and backend pipelines.
Data
Freshnesslive
Keep datano limit
Use datasolely for its own internal business purposes and use [...] abide by all applicable laws, treaties and regulations in connection with its use of the NullBounce Hosted Service
Plan
Pay$0
You get100 credits
Enough for100 calls, once
Expiresnever
Rate limit
Per second10
Batch1
Speed
Answerin the call
Median0.45 s
The call
You sendemail
MethodPOST
Path/api/v1/validate/
About the plan
Plan100 free credits
Who can get itevery newly registered account, no credit card required
The 7 fields the plan's answer can hold

email, result, status, sub-status, disposable, role, free

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