Datacircle

Sealch pricing and alternatives: email verification API, POST /api/verify

Sealch's sitellms.txtBest email verification API in 2026
17% complete: 1 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsThe cheapest of the 1,712 plans we rank by price is treg, top-up from $10, at $0.00 per 1,000.
Plan: Free one of Sealch's 22 plans
Call: POST /api/verify one of Sealch's 2 calls
API: Email verification API one of Sealch's 2 APIs

About this item

  • Live. The call checks the email when you make it.
  • 1 of the 6 key fields we check. Deliverability.
  • Nothing to pay. You get 200 credits once, enough for 200 calls. Credits never expire.
  • One call. You send email to POST /api/verify. You set the Content-Type header to "application/json".
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

Sealch: email verification API alternatives

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

Sealch, $2,582 yearly, Yearly up to 1,000,000 / mo, POST /api/verifyVeriMails, $300 monthly, Agency, POST /api/verify/singleMillionVerifier, $4,999 pack, 25,000,000 verification credits, GET /api/v3VerifySwift, $2,499.99 monthly, Monthly Credits 12,000,000No2Bounce, $11,049 pack
$ per 1,000$0.215$0.20$0.20$0.208$0.221
Completeness17%67%50%50%0%
Billingyearlymonthlypay firstmonthlypay first
Pay$2,582$300$4,999$2,499.99$11,049
Enough for1,000,000 calls a month1,500,000 calls a month25,000,000 calls12,000,000 calls a month50,000,000 results
Freshnesslivelivelivelivelive
Who can get itanyoneanyonea legal entity, public body, organisation, sole trader, self-employed professional or other person acting only for business purposesanyone 18 or olderanyone at least 18 years old

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 2026-10-25.

  1. sealch.com/api
  2. sealch.com/blog/verify-emails-clay-make-n8n
  3. sealch.com/files/sealch-api-kit-v2.zip
  4. sealch.com/pricing
  5. sealch.com/privacy
  6. sealch.com/refunds
  7. sealch.com/terms

Product details

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

  • Address, not in the answer
  • 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$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Percall
Also pays forfrom the same budget: Verify up to 50 emails · Find an address
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
In their words
Their pitchSealch is an email verification service that runs the same live SMTP check as the premium tools — catch-all detection, 99.2% accuracy, and you're never charged for unknowns.
Data
Freshnesslive
Keep datano limit
Use datause the Service only for lawful purposes. You must not: Use the Service to verify email addresses for spam, phishing, harassment, or any illegal communication, Attempt to circumvent plan limits through automated account creation or credential sharing across organizations, Resell, redistribute, or sublicense access to the Service or API without written permission, Reverse-engineer, decompile, or attempt to extract the source code of the Service, Use the Service to build a competing email verification product, Submit email addresses you do not have a legitimate business reason to verify
Plan
Pay$0
You get200 credits
Enough for200 calls, once
Expiresnever
Rate limit
Batch1
Speed
Answerin the call
Median0.76 s
The call
You sendemail, Content-Type header "application/json"
MethodPOST
Path/api/verify
About the plan
PlanFree
Who can get itanyone
The 7 fields the plan's answer can hold

reachability, mail provider, role account, disposable, credits used, credits limit, credits lifetime

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