Datacircle

MailSift, POST /verify/batch, Verify up to 100 emails at once: 5 email validation API plans

MailSift's sitellms.txt
67% complete: 4 of the 6 key fieldsSee which
$0.00per 1,000 emails
Plan: Free one of MailSift's 5 plans
Call: POST /verify/batch, Verify up to 100 emails at once one of MailSift's 6 calls

About this item

  • Live. The call checks the email when you make it.
  • 4 of the 6 key fields. Address, Its check, Confidence, Company.
  • Nothing to pay. You get 500 credits once, enough for 500 results. Credits never expire.
  • One call. You send emails to POST /verify/batch. Optional: mode. The call returns whether the address takes mail.
  • Who can get it: anyone 16 or older. Keep data: no limit. Use data: with conditions.

Compare with similar plans

Other providers' plans with the closest prices per 1,000. Like this plan, each is live.

This planMailSift, free, Free, POST /verify/batch, Verify up to 100 emails at onceMelissa, free, Monthly Top-off, GET /V4/WEB/GlobalEmail/doGlobalEmailMinelead, freeMailValidation.io, free, Free, POST /api/validate/MyEmailVerifier, free, 100 free credits daily, GET /verifier/validate_single/{email}/{API_KEY}
$ per 1,000$0.00$0.00$0.00$0.00$0.00
Completeness67%50%50%33%33%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough for500 results, once250 calls a month25 calls a month100 calls100 calls a day
Freshnesslivelivelivelivelive
Who can get itanyone 16 or olderanyone who pays the "$4.97 Verification Fee (One-Time)" (a KYC/AML identity check), after it Melissa tops off up to 1,000 free credits a monthanyoneanyoneanyone who verifies a phone number

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-20.

  1. mailsift.dev
  2. mailsift.dev/api
  3. mailsift.dev/docs/api-reference.md
  4. mailsift.dev/docs/overview.md
  5. mailsift.dev/llms.txt
  6. mailsift.dev/openapi.json
  7. mailsift.dev/pricing
  8. mailsift.dev/terms

Product details

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

  • Address
  • Its check
  • Confidence
  • Name, not in the answer
  • Place, not in the answer
  • Company
Price
$ per 1,000$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Perresult
Also pays forfrom the same budget: Verify one email · Verify one email with Deep Verification · Verify up to 100 emails at once with Deep Verification · Verify a CSV in bulk · Verify a CSV in bulk with Deep Verification
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
In their words
Their pitchMailSift is a fast, accurate email verification API and bulk CSV validator. It detects invalid, disposable, role-based, and risky email addresses using syntax, MX, SPF, DMARC, SMTP, and catch-all checks, returning a status and a 0–100 deliverability score.
Data
Freshnesslive
Keep datano limit
Use dataYou may not use MailSift to: send unsolicited email, harass individuals, build databases of contact information for sale, circumvent rate limits or terms, or for any unlawful purpose. [...] You are responsible for having a lawful basis to process the email addresses you submit, including, where applicable, consent under the GDPR. [...] We grant you a non-transferable, revocable license to use the service for its intended purpose.
Plan
Pay$0
You get500 credits
Enough for500 results, once
Expiresnever
Rate limit
Per second1
Batch100
Speed
Answerin the call
The call
You sendemails. Optional: mode
MethodPOST
Path/verify/batch
About the plan
PlanFree
Who can get itanyone 16 or older
The 42 fields the plan's answer can hold

email, status, sub-status, score, mode, credits used, domain, MX records, free check, response time, checked at, engine version, normalized email, typo suggestion, MX provider, domain age, blocklist listings, SPF record, DMARC record, DMARC policy, catch-all confidence, reasons, syntax valid, free provider, disposable, MX, parked, relay, SPF, DMARC, catch-all, role address, blocklisted, MX routable, forwarder, SMTPUTF8, MTA-STS, TLS-RPT, BIMI, count, truncated, error