Email List Validation

Email List Validation provides a service to clean and validate email lists with over 99% accuracy, offering a money‑back guarantee. Trusted by more than 80,000 users, the platform allows uploading lists for free credits and supports bulk validation via API integration, helping businesses improve deliverability and reduce bounce rates.

Email List Validation is profiled on the APIs.io network. Tagged areas include Email Verification, Data Cleaning, API Service, Marketing Tools, and Software-as-a-Service.

Email List Validation’s developer surface includes pricing, engineering blog, documentation, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

18.4/100 emerging Agent 1/100 human only Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

0 APIs

Email Verification Data Cleaning API Service Marketing Tools Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 18.4/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 10.5 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 1.2 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points Ask about this →
Developer Ergonomics scores 11.9 — up to +17.6 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/emaillistvalidation-com/apis.yml: open an issue on github.com/api-evangelist/emaillistvalidation-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Agent2Agent

measured — observed by APIs.io (flavored)

Email List Validation API pricing

Prices published by Email List Validation, read 2026-11-06 from emaillistvalidation.com/pricing.

Plan	Price
Pay-as-you-go 2,500 emails	$19
Monthly 2,500 emails	$14/mo
Pay-as-you-go 5,000 emails	$39
Monthly 5,000 emails	$29/mo
Pay-as-you-go 10,000 emails	$59
Monthly 10,000 emails	$49/mo
Pay-as-you-go 25,000 emails	$99
Monthly 25,000 emails	$79/mo

All 23 plans, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Email List Validation Plans Pricing

23 plans

PLANS

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Email List Validation Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: emaillistvalidation-com
name: Email List Validation
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://emaillistvalidation.com/opengraph-image?9842016a9b7938b2
description: Email List Validation provides a service to clean and validate email lists with over 99% accuracy, offering a
  money‑back guarantee. Trusted by more than 80,000 users, the platform allows uploading lists for free credits and supports
  bulk validation via API integration, helping businesses improve deliverability and reduce bounce rates.
url: https://artifacts.apis.io/emaillistvalidation-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-06 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-06'
modified: '2026-11-06'
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Documentation site renders via JavaScript, preventing machine-readable spec discovery.
  evidence:
  - url: https://help.emaillistvalidation.com/
    status: 200
  checked: '2026-11-06'
tags:
- Email Verification
- Data Cleaning
- API Service
- Marketing Tools
- Software-as-a-Service
tags_raw:
- Email Validation
- Data Cleaning
- API Service
- Marketing Tools
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/emaillistvalidation-com-plans-pricing.yml
- type: LLMsTxt
  url: llms/emaillistvalidation-com-llms.txt
- type: AgentCard
  url: a2a/emaillistvalidation-com-a2a.yml
- type: Hosts
  url: hosts/emaillistvalidation-com-hosts.yml
- type: Vendors
  url: vendors/emaillistvalidation-com-vendors.yml
- type: TermsOfService
  url: https://emaillistvalidation.com/terms
- type: PrivacyPolicy
  url: https://app.emaillistvalidation.com/legal/privacy
- type: Pricing
  url: https://emaillistvalidation.com/pricing
- type: Login
  url: https://app.emaillistvalidation.com/signin
- type: Blog
  url: https://emaillistvalidation.com/blog
- type: Documentation
  url: https://help.emaillistvalidation.com/
- type: DomainSecurity
  url: security/emaillistvalidation-com-domain-security.yml
- type: Website
  url: https://emaillistvalidation.com/
apis: []
x-enrichment:
  date: '2026-11-06'
  status: enriched
  artifacts_added: 13
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Email List Validation API — frequently asked questions

How much does the Email List Validation API cost?

Email List Validation publishes its prices; its Pay-as-you-go 2,500 emails plan is $19 as of 2026-11-06. APIs.io lists 23 pricing plans for Email List Validation, with each plan's price, limits and inclusions under Pricing on this page.

Is the Email List Validation API ready for AI agents?

Email List Validation has a Kin Score of 18.4 out of 100 (emerging) and an Agent Readiness score of 1.4 (human-only), scored by API Evangelist on 2026-11-13.

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