emerging · 0.2 market domain

Email Validation

Score 23.2 / 100 12 providers +5 via APIs 17 APIs Search apis.io →
Variants seen in the corpus: Email ValidationEmail validation

Providers using this tag (12)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready
MailboxlayerEmailEmail VerificationSMTP2 APIs71.9DeBounceEmail VerificationDeliverabilityDisposable Email Detection3 APIs70.3
Strong 6 Solid coverage with minor gaps
ZeroBounceEmail DeliverabilityEmail VerificationMarketing1 API65.61LookupPhone ValidationIP IntelligenceFraud and Risk3 APIs61.6NeverBounceEmail VerificationEmail HygieneDeliverability1 API59.2APIFreaks - API Hub for DevelopersIP IntelligenceGeolocationWHOISDomain Intelligence104 APIs58.2Abstract APIAvatarsCompany EnrichmentContactsCurrency13 APIs57.4KickboxEmail VerificationDeliverabilityData Quality2 APIs56.8
Developing 2 Usable, with meaningful gaps to close
ExperianCompanyCredit BureauCredit ReportingIdentity Verification9 APIs53.5Return PathCompanyMarTechEmailEmail Deliverability11 APIs42.6
Thin 2 Limited public surface area
IPQualityScoreFraud PreventionIP ReputationProxy Detection1 API37.5MailgunEmailTransactional EmailSMTP1 API33.0

APIs with this tag (17)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 3 Complete, well-documented, and agent-ready
Twilio Email Validation APIValidate email addresses72.9Mailboxlayer Email Validation APIREST/JSON API for real-time email validation: syntax check, typo suggestions, MX-record lookup, SMTP verifi...71.9Blueshift Email validation APIValidate single or bulk email addresses to assess deliverability and risk.69.3
Strong 9 Solid coverage with minor gaps
ZeroBounce Bulk APIAsynchronous file-job surface for bulk email validation, bulk AI scoring, bulk email finder, bulk domain se...65.6ZeroBounce Email Validation APIReal-time and batch email validation API including credit balance, API usage, file submission and retrieval...65.6ZeroBounce Email Validation API (EU)EU-region endpoint of the ZeroBounce v2 email validation API for customers requiring European data residenc...65.6ZeroBounce Email Validation API (US)US-region endpoint of the ZeroBounce v2 email validation API. Introduced October 2025 alongside the EU host...65.6ZeroBounce MCP ServerOfficial ZeroBounce Model Context Protocol server, published by ZeroBounce under Apache-2.0 and distributed...65.6Snov.io Email Verification APIVerify the deliverability and validity of up to 10 email addresses per request using a two-step async API. ...64.91Lookup MCP ServerFirst-party hosted/remote MCP connector with OAuth 2.1 auth (authorization code + PKCE, dynamic client regi...61.61Lookup REST APIRESTful API over HTTPS covering all 1Lookup products (phone/email/IP validation, fraud, enrichment, B2B dat...61.6Enrich Email Validation APIThe Email Validation API from Enrich — 4 operation(s) for email validation.59.8
Developing 2 Usable, with meaningful gaps to close
Experian Aperture Data Quality APIThe consolidated Experian Data Quality REST API — 41 operations across 34 paths covering address search/val...53.5Experian Email Validation APIReal-time email address verification returning a confidence classification (verified, unknown, undeliverabl...53.5
Thin 3 Limited public surface area
IPQualityScore Email Validation APIThe Email Validation API from IPQualityScore — 1 operation(s) for email validation.37.5Mailgun Email Validation APIREST API for verifying email addresses in real time, bulk list validation, and deliverability scoring to re...33.0DISQO CoReg APIValidate an email address for co-registration flows — checks address format, whether the address already ex...28.8

Companies reaching this through an API (5)

These companies publish an API, specification or operation carrying “Email Validation” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Blueshift DISQO Enrich Snov.io Twilio

Score breakdown

Frequency
40.4
log-scaled weighted occurrences
Breadth
0.3
spread across providers
Quality lift
63.1
mean composite of providers using it
Cohesion
2.6
strength of nearest seed neighbor

Related tags

Phone Validation 5 co-occurrences Email Verification 7 co-occurrences Deliverability 7 co-occurrences Data Quality 5 co-occurrences Data Enrichment 5 co-occurrences Email 6 co-occurrences Account 5 co-occurrences MCP 5 co-occurrences

Where this tag comes from

Provider tag12
Api tag17
Openapi tag3
Openapi op tag4

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Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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As a scored cohort 
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The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/email-validation/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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