established · 2.5 market domain

Email Verification

Score 28.1 / 100 35 providers +10 via APIs 43 APIs Search apis.io →
Business capabilities this tag reaches
Cybersecurity Management 1
Variants seen in the corpus: Email ValidationEmail Verification

Providers using this tag (35)

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

Exemplar 7 Complete, well-documented, and agent-ready
HunterContact DiscoveryEmailLead Generation1 API71.9DeBounceDeliverabilityDisposable Email DetectionMX Records3 APIs70.4SendPulseMarketingMarketing AutomationEmailTransactional Email20 APIs69.5MailboxlayerEmailSMTPMX Records2 APIs68.9WappalyzerTechnology DetectionTechnographicsWebsite AnalysisCMS Detection2 APIs68.1Snov.ioSales AutomationEmail FinderLead Generation1 API67.2ZeroBounceEmail DeliverabilityMarketingLead Scoring1 API67.1
Strong 18 Solid coverage with minor gaps
InstantlyCold EmailOutboundSalesDeliverability3 APIs66.01LookupPhone ValidationIP IntelligenceFraud and Risk3 APIs64.2EnrichData EnrichmentContact DiscoveryWeb IntelligenceB2B Data7 APIs63.8LastDatabaseContact DataLead GenerationB2B Data1 API61.9Abstract APIAvatarsCompany EnrichmentContactsCurrency13 APIs61.6APIVerveAPI MarketplaceRESTJSONGraphQL1 API60.8NeverBounceEmail HygieneDeliverabilityMarketing1 API58.6APIFreaks - API Hub for DevelopersIP IntelligenceGeolocationWHOISDomain Intelligence104 APIs57.9broke2builtCompanyAI AgentsAgent ToolsData Intelligence2 APIs57.6MailerSendEmailTransactional EmailSMTPMarketing1 API57.4RevenueBaseCompanyB2B DataData Enrichment2 APIs57.1ExperianCompanyCredit BureauCredit ReportingIdentity Verification11 APIs57.0UpLeadB2BLead GenerationContact DataCompany Data1 API56.0KickboxDeliverabilityData QualityEmail2 APIs55.7APIMeshWeb AnalysisSEOWeb Security5 APIs55.2CustomerOSCRMRevenueGo-To-MarketLead Intelligence10 APIs54.9Email Verifier APIDeliverabilitySMTP CheckBounce Prevention1 API54.8PabblyAutomationEmail MarketingSubscription BillingBilling7 APIs54.8
Developing 5 Usable, with meaningful gaps to close
MCP360MCPMCP ServerMCP GatewayAI Agents38 APIs51.8uCheckerEmailSMTPDNS1 API47.7NeuralVerge APICompany DataPeople DataContact EnrichmentEmail Finder1 API47.0WhoAPICompanyDomainsWHOISDomain Availability1 API46.3Return PathCompanyMarTechEmailEmail Deliverability11 APIs45.1
Thin 4 Limited public surface area
Derrickb2b-data-enrichmentEmail FinderPhone Findercompany-firmographics2 APIs35.7IPQualityScoreFraud PreventionIP ReputationProxy Detection1 API34.3TerminusCompanyAccount Based MarketingMarketingAdvertising3 APIs32.9MailgunEmailTransactional EmailSMTP1 API30.9
Emerging 1 Early or largely undocumented
RankFabrikDataWeb ScrapingLocal BusinessPlaces4 APIs20.5

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 11 Complete, well-documented, and agent-ready
Telnyx Email Verification APIVerify ownership of a DIR's authorizer email. A short code is emailed and confirmed; the email must be veri...79.6Twilio Email Validation APIValidate email addresses77.8Edge Impulse Email Verification APIThe Email Verification API from Edge Impulse — 4 operation(s) for email verification.69.4Mailboxlayer Email Validation APIREST/JSON API for real-time email validation: syntax check, typo suggestions, MX-record lookup, SMTP verifi...68.9Snov.io Email Verification APIVerify the deliverability and validity of up to 10 email addresses per request using a two-step async API. ...67.2Snov.io Email Verification APIVerify email deliverability and validity67.2ZeroBounce 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...67.1
Strong 15 Solid coverage with minor gaps
HighLevel Email Verification APIDocumentation for Email ISV API66.4Instantly Email Verification APIA single email verification66.0Blueshift Email validation APIValidate single or bulk email addresses to assess deliverability and risk.65.91Lookup MCP ServerFirst-party hosted/remote MCP connector with OAuth 2.1 auth (authorization code + PKCE, dynamic client regi...64.21Lookup REST APIRESTful API over HTTPS covering all 1Lookup products (phone/email/IP validation, fraud, enrichment, B2B dat...64.2Enrich Email Validation APIThe Email Validation API from Enrich — 4 operation(s) for email validation.63.8Enrich Email Verification APIValidate email addresses for deliverability.63.8APIVerve GraphQL API (alpha)Single GraphQL endpoint that fans out to multiple APIs in one request. Explicitly labeled alpha / not for p...60.8APIVerve MCP ServerHosted remote MCP server (streamable HTTP) exposing every catalog endpoint as individual MCP tools with inp...60.8NeverBounce API v4RESTful JSON API for email verification. Provides single email verification (`/single/check`), bulk job ver...58.6Experian 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...55.7CustomerOS Email Verification APIThe Email Verification API from CustomerOS — 4 operation(s) for email verification.54.9AnyAPI Email Verification APIThe email-verification API from AnyAPI — 5 operation(s) for email-verification.54.8Pabbly Email Verification APIREST API for Pabbly Email Verification. A single operation, POST /email-lists/verify-single, returning a de...54.8
Developing 3 Usable, with meaningful gaps to close
MCP360 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.41.2SuperTokens Email Verification APIEmail verification token creation and validation40.9
Thin 6 Limited public surface area
Derrick MCP ServerHosted streamable-HTTP MCP server exposing 12 enrichment tools; also available as a local npm package (derr...35.7Derrick REST APIREST API for B2B data enrichment (emails, phones, profile/company enrichment, verification, search, SIRET/S...35.7IPQualityScore Email Validation APIThe Email Validation API from IPQualityScore — 1 operation(s) for email validation.34.3Verify APIEmail verification API — single-address real-time validation and asynchronous CSV batch verification, sold ...32.9Mailgun 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...29.9
Emerging 5 Early or largely undocumented
Power2SME Email Verification API23.1CaptionsTimestamped/segmented video transcript retrieval, up to 50 videos per call. Billed per transcript returned.20.5JobsJob posting collection that segments by publish window/area to exceed the public 1,000-result cap. Billed p...20.5PlacesLocal business data collection via geo point + radius sweep with deduplication on place ID; optional email ...20.5VerifyEmail verification via syntax, disposable-domain, MX and SMTP dialogue checks (no message sent), up to 100 ...20.5

Companies reaching this through an API (10)

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.

AnyAPI Blueshift DISQO Edge Impulse HighLevel Openprovider Power2SME SuperTokens Telnyx Twilio

Score breakdown

Frequency
53.7
log-scaled weighted occurrences
Breadth
0.9
spread across providers
Quality lift
67.6
mean composite of providers using it
Cohesion
6.4
strength of nearest seed neighbor

Where this tag sits

Email broader

Related tags

Deliverability 12 co-occurrences Email Finder 6 co-occurrences Phone Validation 6 co-occurrences IP Intelligence 5 co-occurrences Data Enrichment 9 co-occurrences Data Quality 8 co-occurrences Email 18 co-occurrences DNS 6 co-occurrences

Where this tag comes from

Provider tag35
Api tag43
Openapi tag15
Openapi op tag37

Cohort brief

Auto-generated

The 35 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
35
all scored
Mean Kin Score
55.2
+32.3 vs catalog 22.9
Mean Agent Readiness
37.6
+25.7 vs catalog 11.9
Spread
20.5–71.9
median 57.1 · σ 12.2
How the 35 split by band
Exemplar 7Strong 18Developing 5Thin 4Emerging 1Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 70.4 26.5 +43.9 35
Developer Ergonomics 60.5 23.2 +37.3 35
Operational Transparency 47.6 13.7 +33.9 35
Contract Quality 46.8 17.6 +29.2 35
Discoverability 72.6 58.1 +14.5 35
Contract Governance 15.6 6.3 +9.3 35

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) 69% 14% +55
MCP server (first-party) 69% 12% +57
Agent Skills 0% 0% 0
OAuth scopes 31% 11% +20
Security 100% 98% +2
Arazzo workflows 6% 2% +4
Governance rules 23% 14% +9

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 Hunter 71.9
  2. 2 DeBounce 70.4
  3. 3 SendPulse 69.5
  4. 4 Mailboxlayer 68.9
  5. 5 Wappalyzer 68.1
  6. 6 Snov.io 67.2
  7. 7 ZeroBounce 67.1
  8. 8 Instantly 66
  9. 9 1Lookup 64.2
  10. 10 Enrich 63.8
Top by Agent Readiness
  1. 1 DeBounce 60.8
  2. 2 Instantly 60
  3. 3 1Lookup 55.4
  4. 4 MailerSend 55.4
  5. 5 Snov.io 55.2
  6. 6 SendPulse 53.6
  7. 7 Hunter 53.4
  8. 8 Wappalyzer 50
  9. 9 APIVerve 50
  10. 10 Enrich 46.1
All 35 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 5 October 2026, across 29093 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.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.