established · -2.6 market domain

Email Verification

Score 25.5 / 100 37 providers +9 via APIs 40 APIs Search apis.io →
Business capabilities this tag reaches
Cybersecurity Management 1
Variants seen in the corpus: Email ValidationEmail Verification

Providers using this tag (37)

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

Exemplar 6 Complete, well-documented, and agent-ready
DeBounceDeliverabilityDisposable Email DetectionMX Records3 APIs68.8MailboxlayerEmailSMTPMX Records2 APIs67.4ZeroBounceEmail DeliverabilityMarketingLead Scoring1 API67.1LastDatabaseContact DataLead GenerationB2B Data1 API66.9SendPulseMarketingMarketing AutomationEmailTransactional Email20 APIs68.4WappalyzerTechnology DetectionTechnographicsWebsite AnalysisCMS Detection2 APIs66.6
Strong 15 Solid coverage with minor gaps
NeverBounceEmail HygieneDeliverabilityMarketing1 API58.7KickboxDeliverabilityData QualityEmail2 APIs55.8Snov.ioSales AutomationEmail FinderLead Generation1 API65.71LookupPhone ValidationIP IntelligenceFraud and Risk3 APIs64.3InstantlyCold EmailOutboundSalesDeliverability2 APIs64.0EnrichData EnrichmentContact DiscoveryWeb IntelligenceB2B Data7 APIs62.5Abstract APIAvatarsCompany EnrichmentContactsCurrency13 APIs61.7APIVerveAPI MarketplaceRESTJSONGraphQL1 API60.9broke2builtCompanyAI AgentsAgent ToolsData Intelligence2 APIs59.7APIFreaks - API Hub for DevelopersIP IntelligenceGeolocationWHOISDomain Intelligence104 APIs58.4RevenueBaseCompanyB2B DataData Enrichment2 APIs57.2ExperianCompanyCredit BureauCredit ReportingIdentity Verification11 APIs57.0MailerSendEmailTransactional EmailSMTPMarketing1 API56.3APIMeshWeb AnalysisSEOWeb Security2 APIs54.8UpLeadB2BLead GenerationContact DataCompany Data1 API54.5
Developing 11 Usable, with meaningful gaps to close
uCheckerEmailSMTPDNS1 API47.8Email Verifier APIDeliverabilitySMTP CheckBounce Prevention1 API46.5ContactOutCompanyContact DataEmail FinderData Enrichment15 APIs53.5CustomerOSCRMRevenueGo-To-MarketLead Intelligence9 APIs53.4PabblyAutomationEmail MarketingSubscription BillingBilling7 APIs53.2MCP360MCPMCP ServerMCP GatewayAI Agents38 APIs51.8LoqateAddress ValidationData QualityPhone Validation1 API51.0isBusinessEmailCompanyBusinessToolsEU-hosted1 API50.4NeuralVerge APICompany DataPeople DataContact EnrichmentEmail Finder1 API47.1WhoAPICompanyDomainsWHOISDomain Availability1 API46.4Return PathCompanyMarTechEmailEmail Deliverability11 APIs45.2
Thin 4 Limited public surface area
DerrickData EnrichmentEmail FinderPhone Findercompany-firmographics2 APIs35.8TerminusCompanyAccount Based MarketingMarketingAdvertising3 APIs33.0MailgunEmailTransactional EmailSMTP1 API30.9IPQualityScoreFraud PreventionIP ReputationProxy Detection1 API26.5
Emerging 1 Early or largely undocumented
RankFabrikDataWeb ScrapingLocal BusinessPlaces4 APIs20.6

APIs with this tag (40)

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 10 Complete, well-documented, and agent-ready
Twilio Email Validation APIValidate email addresses91.6Live Direct Marketing Email Verification APIThe Email Verification API from Live Direct Marketing — 2 operation(s) for email verification.68.2Edge Impulse Email Verification APIThe Email Verification API from Edge Impulse — 4 operation(s) for email verification.67.9Mailboxlayer Email Validation APIREST/JSON API for real-time email validation: syntax check, typo suggestions, MX-record lookup, SMTP verifi...67.4ZeroBounce Bulk APIAsynchronous file-job surface for bulk email validation, bulk AI scoring, bulk email finder, bulk domain se...67.1ZeroBounce Email Validation APIReal-time and batch email validation API including credit balance, API usage, file submission and retrieval...67.1ZeroBounce Email Validation API (EU)EU-region endpoint of the ZeroBounce v2 email validation API for customers requiring European data residenc...67.1ZeroBounce Email Validation API (US)US-region endpoint of the ZeroBounce v2 email validation API. Introduced October 2025 alongside the EU host...67.1ZeroBounce MCP ServerOfficial ZeroBounce Model Context Protocol server, published by ZeroBounce under Apache-2.0 and distributed...67.1HighLevel Email Verification APIDocumentation for Email ISV API66.9
Strong 14 Solid coverage with minor gaps
Blueshift Email validation APIValidate single or bulk email addresses to assess deliverability and risk.65.9Snov.io Email Verification APIVerify email deliverability and validity65.7Snov.io Email Verification APIVerify the deliverability and validity of up to 10 email addresses per request using a two-step async API. ...65.71Lookup MCP ServerFirst-party hosted/remote MCP connector with OAuth 2.1 auth (authorization code + PKCE, dynamic client regi...64.31Lookup REST APIRESTful API over HTTPS covering all 1Lookup products (phone/email/IP validation, fraud, enrichment, B2B dat...64.3Instantly Email Verification APIA single email verification64.0Enrich Email Validation APIThe Email Validation API from Enrich — 4 operation(s) for email validation.62.5Enrich Email Verification APIValidate email addresses for deliverability.62.5APIVerve GraphQL API (alpha)Single GraphQL endpoint that fans out to multiple APIs in one request. Explicitly labeled alpha / not for p...60.9APIVerve MCP ServerHosted remote MCP server (streamable HTTP) exposing every catalog endpoint as individual MCP tools with inp...60.9NeverBounce API v4RESTful JSON API for email verification. Provides single email verification (`/single/check`), bulk job ver...58.7Experian Email Validation APIThe Email Validation API from Experian — 2 operation(s) for email validation.57.0Kickbox Email Verification APIREST API for verifying the deliverability of email addresses in real time. Returns a result (deliverable, u...55.8AnyAPI Email Verification APIThe email-verification API from AnyAPI — 5 operation(s) for email-verification.55.3
Developing 4 Usable, with meaningful gaps to close
CustomerOS Email Verification APIThe Email Verification API from CustomerOS — 4 operation(s) for email verification.53.4Pabbly Email Verification APIREST API for Pabbly Email Verification. A single operation, POST /email-lists/verify-single, returning a de...53.2MCP360 Email Verification APIThe email-verification API from MCP360 — 2 operation(s) for email-verification.51.8Openprovider Email Verification APIThe Email Verification API from Openprovider — 3 operation(s) for email verification.41.1
Thin 7 Limited public surface area
SuperTokens Email Verification APIEmail verification token creation and validation36.4Derrick MCP ServerHosted streamable-HTTP MCP server exposing 12 enrichment tools; also available as a local npm package (derr...35.8Derrick REST APIREST API for B2B data enrichment (emails, phones, profile/company enrichment, verification, search, SIRET/S...35.8Verify APIEmail verification API — single-address real-time validation and asynchronous CSV batch verification, sold ...33.0Mailgun Email Validation APIREST API for verifying email addresses in real time, bulk list validation, and deliverability scoring to re...30.9DISQO CoReg APIValidate an email address for co-registration flows — checks address format, whether the address already ex...29.9IPQualityScore Email Validation APIThe Email Validation API from IPQualityScore — 1 operation(s) for email validation.26.5
Emerging 5 Early or largely undocumented
Power2SME Email Verification API23.2CaptionsTimestamped/segmented video transcript retrieval, up to 50 videos per call. Billed per transcript returned.20.6JobsJob posting collection that segments by publish window/area to exceed the public 1,000-result cap. Billed p...20.6PlacesLocal business data collection via geo point + radius sweep with deduplication on place ID; optional email ...20.6VerifyEmail verification via syntax, disposable-domain, MX and SMTP dialogue checks (no message sent), up to 100 ...20.6

Companies reaching this through an API (9)

These companies publish an API, specification or operation carrying “Email Verification” 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 Edge Impulse HighLevel Live Direct Marketing Openprovider Power2SME SuperTokens Twilio

Score breakdown

Frequency
52.8
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
56.4
mean composite of providers using it
Cohesion
5.6
strength of nearest seed neighbor

Where this tag sits

Email broader

Related tags

Deliverability 13 co-occurrences Phone Validation 7 co-occurrences Email Finder 6 co-occurrences Data Enrichment 16 co-occurrences IP Intelligence 5 co-occurrences Data Quality 9 co-occurrences Email 17 co-occurrences DNS 6 co-occurrences

Where this tag comes from

Provider tag38
Api tag40
Openapi tag15
Openapi op tag34

Cohort brief

Auto-generated

The 37 providers in the APIs.io catalog tagged Email Verification, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
37
all scored
Mean Kin Score
53.8
+31.6 vs catalog 22.2
Mean Agent Readiness
37.9
+25.9 vs catalog 12
Spread
20.6–68.8
median 55.8 · σ 11.9
How the 37 split by band
Exemplar 6Strong 15Developing 11Thin 4Emerging 1Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 65.2 23.9 +41.3 37
Developer Ergonomics 59.8 23.2 +36.6 37
Operational Transparency 45.9 13 +32.9 37
Contract Quality 47.1 17.2 +29.9 37
Discoverability 73.4 57.9 +15.5 37
Contract Governance 15 6.5 +8.5 37

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 68% 13% +55
MCP server (first-party) 70% 12% +58
Agent Skills 0% 0% 0
OAuth scopes 30% 11% +19
Security 100% 98% +2
Arazzo workflows 3% 2% +1
Governance rules 30% 16% +14

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 DeBounce 68.8
  2. 2 SendPulse 68.4
  3. 3 Mailboxlayer 67.4
  4. 4 ZeroBounce 67.1
  5. 5 LastDatabase 66.9
  6. 6 Wappalyzer 66.6
  7. 7 Snov.io 65.7
  8. 8 1Lookup 64.3
  9. 9 Instantly 64
  10. 10 Enrich 62.5
Top by Agent Readiness
  1. 1 DeBounce 60.8
  2. 2 Instantly 60.5
  3. 3 LastDatabase 58.6
  4. 4 MailerSend 56.3
  5. 5 1Lookup 55.4
  6. 6 Snov.io 54.3
  7. 7 SendPulse 51.7
  8. 8 APIVerve 51
  9. 9 Wappalyzer 49.4
  10. 10 ContactOut 44.9
All 37 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 24 October 2026, across 31984 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

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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.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/email-verification"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/email-verification"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/email-verification/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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