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SuperSend pricing and alternatives: email verification API

SuperSend's sitellms.txtBest email verification API in 2026
67% complete: 4 of the 6 key fields we checkSee the 6 fields
$59 monthlyThe cheapest of the 1,671 priced plans is treg, top-up from $10, at $0.00 per 1,000.
Plan: Starter one of SuperSend's 6 plans
Call: POST /email-validation/verify SuperSend's only call
API: Email verification API SuperSend's only API

About this item

  • Freshness. SuperSend doesn't say how fresh an answer is.
  • 4 of the 6 key fields we check. Address, Deliverability, Confidence, Company.
  • A monthly subscription. You pay $59.
  • One call. You send email to POST /email-validation/verify. You can also send TeamId. The call returns whether the address takes mail.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

SuperSend: email verification API alternatives

We list other providers' plans billed monthly.

This planSuperSend, $59 monthlyMails.so, €498 monthly, Unlimited, POST /batchAPILayer, $74.99 monthly, Professional Plus Plan, GET /bulk_checkBulk Email Checker, $250 monthlyRouterGrowth, $99 monthlySnov.io, $39 monthly
$ per 1,000not publishedno limitnot publishedno limitnot publishednot published
Completeness67%67%67%50%50%33%
Billingmonthlymonthlymonthlymonthlymonthlymonthly
Pay$59€498$74.99$250$99$39
Enough fornot publishedno limitnot publishedno limitnot publishednot published
Freshnessnot publishednot publishedlivelivenot publishednot published
Who can get itanyoneanyoneanyoneanyone at least 18 years old, or of the age of legal majorityanyonelegal age or authority to bind yourself or the company

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 2026-10-23.

  1. api.supersend.io/v2/openapi.json
  2. docs.supersend.io/docs/email-validation
  3. docs.supersend.io/docs/rate-limits
  4. supersend.io/features/email-verification
  5. supersend.io/legal/aup
  6. supersend.io/legal/terms-and-conditions
  7. supersend.io/llms-full.txt
  8. supersend.io/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
  • Name, not in the answer
  • Place, not in the answer
  • Company
Price
Billingmonthly
$ a month$59
Aggregators
Aggregatorsnone
Charges
Also pays forEmail sending: 15,000 emails a month · LinkedIn outreach: 1 LinkedIn sender · from the same budget: Placement tests · Create contact with validate_emails · Bulk import contacts with validate_emails · CSV validation
In their words
Their pitchVerify a single email address over the API with SMTP validation and global verification credits—without creating a contact.
Data
Keep datano limit
Use dataYou may use SuperSend only for: B2B cold outreach to business contacts where you have a lawful basis to contact them under applicable law (including CAN-SPAM, GDPR, PECR, CASL, and similar regulations), messages that clearly identify the sender and include a working opt-out mechanism on every commercial email, list sources you can document: prior relationship, legitimate interest with appropriate balancing, explicit consent, or other lawful basis as required in the recipient's jurisdiction
Plan
Pay$59
Rate limit
Per second50
Concurrent20
Batch1
Speed
Answerin the call
The call
You sendemail. Optional: TeamId
MethodPOST
Path/email-validation/verify
About the plan
PlanStarter
Who can get itanyone
The 22 fields the plan's answer can hold

success, request ID, email, valid, validators, credits used, email hash, domain, role-based, abuse email, free provider, disallowed, validity score, risk level, confidence, email provider, email security service, bounce type breakdown, total sends, hard bounce count, reply count, has historical data

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