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  7. Mailcheck

Mailcheck logo

Mailcheck

Partially Agent-Ready
Agent-Ready SaaS Index · mailcheck.co · scored 2026-05-09 · rubric v2.0
Score 49 / 100
Email Verification Tools

Mailcheck scores 49/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a free entry path exists.

See Mailcheck pricing summaryLive pricing page
Pricing
Mailcheck pricing
As of 2026-05-09 · www.mailcheck.co/#pricing
Free
Free
forever
Validate up to 10 emails per month for free
No card required
Pro
$10/mo
flat
Validate up to 1,000 emails per month
Overage charge $0.005 per extra email
Agency
$30/mo
flat
Validate up to 5,000 emails per month
Overage charge $0.004 per extra email
Enterprise
$90/mo
flat
Validate up to 20,000 emails per month
Overage charge $0.003 per extra email
Custom
Sales
Contact sales
100,000+ emails per month – request a demo
1,000,000,000+ emails per month – request a demo
Score breakdown · rubric v2.0
How Mailcheck scores on the agent-ready dimensions

Public pricing visibility

15 / 15

Self-serve checkout

15 / 15

Public API + docs

0 / 20

Usage-based / metered pricing

0 / 20

Free entry path

7 / 7

No sales call required

7 / 7

Card / wallet / x402 payment

5 / 6

Machine-readable bonus (MCP / OpenAPI)

0 / 10

Total
49 / 100
Effective pricing
What it actually costs at typical scale
1,000 emails validated per month (Pro plan)
$10/mo
· Using the Pro tier which includes 1,000 emails· No overage charges
Confidence: high
6,000 emails validated per month (Agency plan with overage)
$34/mo
· Using the Agency tier (5,000 emails included)· 1,000 extra emails charged at $0.004 each
Confidence: high
Agent purchase verdict
Can an autonomous agent transact here?
Agent-ready
LLM score: 75/100

Can create account

Yes

Can enter payment method

Yes

Can upgrade plan

Yes

Can buy more usage

Yes

Can cancel online

Yes

Payment methods

card

Human approval recommended

No

Pricing transparency

full

Purchase motion

self_serve

Demo required

No

Quote required

No

Annual commit required

Unknown

Auto-renewal mentioned

No

Cancellation policy visible

No

Refund policy visible

Yes

Invoice payment available

No

Purchase orders supported

No

MSA required

No

DPA available

Yes

Security review required

No

Enterprise signals
Trust & compliance

Certifications

GDPR

SSO / SAML

Unknown

RBAC

Unknown

Audit logs

Unknown

Competitive intel
Positioning & ecosystem
Headline

“Verification email addresses online in one click”

Buyer persona

smb
mid market

Integrations mentioned
Mailerlite
Value claims
40 days money-back guarantee
increase delivery rate up to 5 times
Agent purchase simulation
Six-step check: can an agent actually buy from Mailcheck?
✓

Discover price

✓

Select a plan

✗

Pay per task

✓

Avoid a sales call

✗

API docs without auth

✗

Estimate cost upfront

Analysis
Pros and cons for AI agents
Observational summary written by xpay from the signals captured on 2026-05-06. Not a review of the product — only of its current pricing posture for agent buyers.
✓ For an AI agent
  • Pricing is publicly visible on an indexable page — agents can read tiers without scraping past auth.
  • Every advertised tier is self-serve; no tier requires scheduling a call.
◐ Opportunities for the provider
  • No per-unit price was advertised, so an agent has no way to estimate the cost of a single task.
  • API documentation is gated or absent; an agent cannot inspect the integration surface without authentication.
  • No /.well-known/ai-pricing.json or equivalent machine-readable pricing manifest is published — agents must rely on HTML scraping.
One-line fix
How Mailcheck could lift its score

Add a per-unit price (e.g. $X / 1K calls) to the pricing page so an agent can compute its own cost before committing.

pricing_visible

true

headline_phrasing

Verification email addresses online in one click — King Billy × Mailcheck

tier_count

3

lowest_paid_entry_usd

10

free_tier

false

free_tier_terms

null

per_unit_price

null

annual_required

false

self_serve_paid_tiers

0

sales_only_tiers

1

public_api_docs_url

null

api_docs_auth_walled

null

ai_pricing_json_present

false

agents_txt_present

false

anonymous_purchase_path

false

per_unit_classification

null

usage_headline_present

false

custom_tier_present

true

agent_friendly

{"ai_pricing_json":false,"agents_txt":false,"llms_txt":false,"sitemap_xml":true,"mcp_server_card":false,"agent_skills_index":false,"x402_supported":false}

View raw extracted page text →
Page heading: Verification email addresses online in one click
CTAs (30): Features · Pricing · Contact Us · Case Studies · KB King Billy × Mailcheck 4× Deposit Conversions · Blog · FAQ · Request a demo · sign in · King Billy × Mailcheck — 4× Deposit Conversions · Sign in · Get free emails now
Price tokens (9): $10/mo · $0.005 · $30/mo · $0.004 · $90/mo · $0.003 · $10 · $10 · $10
Features Pricing Contact Us Case Studies KB King Billy × Mailcheck 4× Deposit Conversions Blog FAQ Request a demo sign in Features Pricing Contact Us Case Studies King Billy × Mailcheck — 4× Deposit Conversions Blog FAQ Sign in Request a demo Verification email addresses online in one click Get assured your mailing list contains only real emails addresses, get rid of bots and inactive users Get free emails now Start Verify email address in real-time! Validation RESULTS - Checked email: Exists: SMTP: Trust rate: Is Not Disposable: Is Not SMTP catch-all: Successful business already use MailCheck Partners The Features Features We improve our service everyday 01 Turn your cold emails into a hot leads 02 Validate emails through social networks 03 Increase your delivery rate up to 5 times with our validation algorithm 04 Spend less on outbound marketing 05 Risk-free 40 days money-back guarantee 06 Don't pay for a duplicate in the list Why do you choose mailcheck? YOU CAN We are a team that validates emails and phones using social networks for the past 3 years. Previously, we did it manually and it took from 3 weeks to a year, but at the moment it takes from us only 15 minutes to check 1 000 000 email addresses. Our service will be useful to those who are working every day to increase conversion in email mailings and want to decrease bounce rate. We will also be useful to those who want to know who is behind that email or phone in order to save their time and money. Cost-effective p…
You work at Mailcheck?
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Get the breakdown of every signal we measured, the one-line fix, and how your peers in Email Verification Tools stack up.

Evaluating Mailcheck?
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Are you Mailcheck? Something off in this listing?
Agent-Ready Spec
Mailcheck
Partially Agent-Ready

49

/ 100 (rubric v2.0)
Category

Email Verification Tools

Pricing model

Verification email addresses online in one click — King Billy × Mailcheck

Tier count

3

Free tier

No

Lowest paid entry

$10/mo

Self-serve / sales-only tiers

0 / 1

Public API docs

Auth-walled

Anonymous purchase path

No

Machine-readable pricing

Not published

Last refreshed

2026-05-09

Pricing intelligenceInsights extracted from www.mailcheck.co/#pricing
Pricing model

Tier-based subscription

Agent-purchase verdict
Agent-ready
75/100 · v2.1
Canonical answer

Mailcheck pricing starts at $10/mo for the Pro plan; free plan available; paid plans up to $90/mo. Billed monthly.

Cheapest entry

Free plan (Free)

Actions
Open live pricing page
Verdict reflects Partially Agent-Ready status under rubric v2.0. Source observed at https://www.mailcheck.co/#pricing.
Agent-friendly features1 of 7 present
Discovery files and protocols
Side-channel signals — informational, not part of the score. Each protocol is independent; adoption signals the publisher is thinking about agent buyers.

ai-pricing.json

agents.txt

llms.txt

sitemap.xml

MCP Server Card

Agent Skills

x402 / MPP

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CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
or ask your AI app
Company
About xpayAgency PartnersGitHubDiscordllms.txt
DevelopersDocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
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