Datacircle

Delx.ai Email verification API pricing

Delx.ai's siteThis page as plain textEmail validation API: best verification providers comparedDelx.ai: email verification API alternatives

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50% complete: 3 of the 6 fields on our checklistSee the 6 fields
$10.00per 1,000 emailsWe haven't run Delx.ai through our email verification API benchmark yet.We rank 4,721 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. This plan costs less per 1,000 emails than 10% of the 4,721 plans. Delx.ai has no free email verification API plan. 734 email verification API plans on our price sheet are free. pingutil's free plan scores highest of the free plans in our benchmark, at 82.3 out of 100.PayPerQ's pay-as-you-go plan costs the least for 10,000 emails a month: $0.06.Disify's $9 monthly plan (/email) covers any number of emails.Validemail.co, pingutil and looot are the best email verification API providers in the Datacircle benchmark.
Type a number to see the cheapest Delx.ai plan for that many emails. The table below then sorts the other plans by what each costs.
Plan: x402 Delx.ai's only plan
Call: POST /api/v1/x402/email-validate Delx.ai's only call for this API
API: Email verification API one of Delx.ai's 5 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 3 of the 6 fields on our checklist. Address, Deliverability, Company.
  • Nothing to buy first. You pay per call.
  • One call. You send email to POST /api/v1/x402/email-validate. You can also send timeout. The call returns whether the address takes mail.
  • Anyone can get it. Keep data: no API terms. Use data: no API terms.

Delx.ai: email verification API alternatives

Delx.ai alternatives: other email verification API providers by price

We list other providers' plans closest to this plan in price per 1,000 emails.

This planDelx.ai, pay as you goTuski, pay as you goClearout, $1,000 pack, 500,000 credits, POST /email_verify/instant, Instant Verify, fullInboxPolicy, pay as you go, Pay-per-call (x402), POST /v1/decideSyncGTM, $50 pack
$ per 1,000 emails$10.00$10.00$10.00$10.00$10.00
Completeness50%50%50%50%33%
Billingpay as you gopay as you gopay firstpay as you gopay first
Payper callper call$1,000per call$50
Enough foras many as you pay foras many as you pay for100,000 calls1 call5,000 calls
Freshnessunknownunknownlive72 hoursunknown
Who can get itanyoneanyonenot new usersanyoneanyone aged 16 or over, for lawful business use

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

  1. api.delx.ai/openapi.x402.json
  2. api.delx.ai/x402-portfolio.json
  3. commerce.delx.ai
  4. commerce.delx.ai/llms.txt
  5. commerce.delx.ai/products/util-email-validate
  6. delx.ai/pricing
  7. delx.ai/trust

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
Price
$ per 1,000 emails$10.00
Percall
Billingpay as you go
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
In their words
Their pitchEmail validation API for agents at $0.01 USDC. Call when you need syntax and domain delivery signals before outreach, signup, or routing.
Data
What it checksformat, mail servers
Keep datano API terms
Use datano API terms
Plan
Payper call
Rate limit
Batch1
Speed
Answerin the call
The call
You sendemail. Optional: timeout
MethodPOST
Path/api/v1/x402/email-validate
About the plan
Planx402
Who can get itanyone
The 6 fields the plan's answer can hold

normalized email, syntax valid, domain, MX records, A records, likely deliverable

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