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Signaliz pricing: email verification API

Signaliz's sitellms.txtBest email verification API in 2026: providers comparedSignaliz: email verification API alternatives

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33% complete: 2 of the 6 key fields we checkSee the 6 fields
$0.20per 1,000 emailsHalf of the 3,214 plans we rank by price cost $1.998 per 1,000 emails or less. This plan costs less per 1,000 emails than 93% of the 3,214 plans.treg's top-up from $10 costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.Disify's $9 monthly plan (/email) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.MailTester Ninja, Signaliz and Enrich.so are the best email verification API providers in our benchmark.
Plan: Pay As You Go one of Signaliz's 3 plans
Call: POST /v2/verify-email Signaliz's only call for this API
API: Email verification API one of Signaliz's 2 APIs

About this item

  • Stored. Signaliz may answer from Signaliz's stored data instead of asking the mail server. Signaliz doesn't say how old the data is.
  • 2 of the 6 key fields we check. Address, Deliverability.
  • A balance you top up. You pay any amount. You spend the whole balance on calls.
  • One call. You send email to POST /v2/verify-email. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

Signaliz: email verification API alternatives

Signaliz alternatives: every email verification API provider ranked

We list other providers' plans closest to this plan in price per 1,000 emails. Each plan in the table gives stored data.

This planSignaliz, top-upCheck Mail, $99 monthlyElastic Email, $999 monthly, Email API Pro (5,000,000 emails/month), POST /verifications/{email}StopReg, $100 monthlyUserCheck, $100 monthly, Pro 500k, POST /v1/gates/{gate_id}/decisions, Decision endpoint
$ per 1,000 emails$0.20$0.198$0.20$0.20$0.20
Completeness33%50%50%50%50%
Billingpay firstmonthlymonthlymonthlymonthly
Payany amount$99$999$100$100
Enough foras many as you pay for500,000 calls a month5,000,000 calls a month500,000 calls a month500,000 calls a month
Freshnessstoredstoredstoredstoredstored
Who can get itanyoneanyoneanyone at least the age of majority in their jurisdiction, with a registered accountanyoneanyone aged 16 or over, or the age of consent in their jurisdiction

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.

  1. api.signaliz.com/functions/v1/api/v1/openapi.json
  2. signaliz.com/api-documentation
  3. signaliz.com/developers/api-reference
  4. signaliz.com/developers/docs
  5. signaliz.com/docs/errors
  6. signaliz.com/for-agents
  7. signaliz.com/pricing
  8. signaliz.com/terms-of-service

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
Score
Overall score77.4
Price score82
Accuracy score85
Cost to get started score93
Bundle score75
Performance score12
Price
$ per 1,000 emails$0.20
Perresult
Billingpay first
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Find Email · Company Signal Enrichment · Signal Awareness
In their words
Their pitchVerify whether one email address is valid and deliverable.
Data
Freshnessstored
What it checksformat, disposable domains, role addresses, mailbox
Keep datano limit
Use dataYou agree to use our Services in compliance with all applicable laws and regulations. You agree not to: Process any data in violation of applicable data protection laws (e.g., GDPR, CCPA). Use the Services to send spam or unsolicited communications. Ingest data that is unlawful, harmful, or infringes on intellectual property rights. Attempt to reverse engineer, disrupt, or gain unauthorized access to the Services. Use the Services for any purpose other than your internal business operations. [...] a limited, non-exclusive, non-transferable license to use the Services for your internal business purposes during the term of your subscription
Rate limit
Batch5,000
Speed
Answerin the call or by polling
Median3.98 s
The call
You sendemail. Optional: requests[].email, requests[].idempotency_key, dry_run, concurrency, batch_item_indices, job_id, verification_run_id, idempotency_key, page, page_size
MethodPOST
Path/v2/verify-email
About the plan
PlanPay As You Go
Who can get itanyone
The 17 fields the plan's answer can hold

index, email, status, catch-all, ok to send, credits charged, diagnostics scope, diagnostics results returned, diagnostics verified count, diagnostics blocked count, diagnostics valid-but-blocked count, diagnostics verdict counts, diagnostics send safety rule, total, succeeded, failed, results

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