mailercloud.com MailerCloud
interface Marketing Communications 50 ✓
mail.td Mail.td API — LLM Reference
interface Communications APIs and SDKs TD 45 ✓
mailersend.com llms.txt for MailerSend.com
interface Communications APIs and SDKs 49 ✓
resend.com Resend
interface Communications APIs and SDKs +1 US 68 ✓ ✓
mails.ai Mails.ai
interface AI and machine learning AI agents and MCP +2 US 47 ✓
sender.net llms.txt for Sender.net
interface Marketing Communications 58 ✓
bentonow.com Bento (bentonow.com) — An Email Marketing and Automation Platform
interface Marketing Communications +1 53 ✓
smtp2go.com SMTP2GO
interface Communications US 63 ✓
nylas.com Nylas | Powerful Communication APIs
interface APIs and SDKs Communications 62 ✓
bird.com Bird
interface Communications APIs and SDKs 65 ✓ ✓
tempmail.lol TempMail
interface Communications APIs and SDKs 50 ✓
mailboxvalidator.com MailboxValidator
interface APIs and SDKs Communications US 54 ✓ ✓
agentmail.to AgentMail: Email for AI Agents
interface AI and machine learning AI agents and MCP +2 US 57 ✓ ✓
mailchannels.com MailChannels
interface Infrastructure AI and machine learning +1 US 49 ✓
mailganer.com Mailganer
interface Communications APIs and SDKs RU 51 ✓
sparkpostmail.com Email API for developers
61 ✓ ✓
rusender.ru RuSender
interface Marketing Communications RU 47 ✓
mailtrap.io Mailtrap
interface Communications Developer tools +1 56 ✓
loops.so Loops
interface Communications APIs and SDKs +1 51 ✓
brevo.com Brevo API Documentation
interface Developer tools Communications +1 68 ✓ ✓
cakemail.com Cakemail
interface Marketing Communications US 46 ✓
monamail.vn MONA Mail
interface AI and machine learning Communications +2 VN 45 ✓ ✓
smakmail.com SmakMail
interface Communications RU 52 ✓ ✓
migma.ai Migma AI
interface AI and machine learning Marketing +1 46 ✓
mailosaur.com Mailosaur
interface Developer tools APIs and SDKs +1 US 45 ✓
ackuna.com Ackuna
interface AI and machine learning AI agents and MCP +1 45 ✓
mailrelay.com Mailrelay
interface Marketing Communications +1 54 ✓
forwardemail.net Forward Email
interface Communications AI agents and MCP +1 US 63 ✓ ✓
maileroo.com Maileroo
interface Communications APIs and SDKs 57 ✓
unione.io UniOne
interface Marketing Communications +1 54 ✓ ✓
postmarkapp.com Postmark
interface Communications APIs and SDKs GB 62 ✓
nitrosend.com Nitrosend
interface Marketing Communications +1 65 ✓ ✓
billionverify.com BillionVerify
interface AI and machine learning Business software +1 50 ✓ ✓
ahasend.com AhaSend
interface Communications APIs and SDKs 47 ✓
jmail.world Jmail
interface 50 ✓
useplunk.com Plunk
interface Communications Open source projects +1 46 ✓
courier.com Courier
interface Communications APIs and SDKs US 64 ✓ ✓
debounce.com DeBounce
interface Marketing 46 ✓
emaillistverify.com EmailListVerify
interface Communications APIs and SDKs 51 ✓
bulkmail.shop BulkMail
interface Infrastructure Ecommerce 47 ✓
bounceless.io Bounceless
interface APIs and SDKs Marketing 49 ✓ ✓
paubox.com Paubox
interface Healthcare Communications +1 US 59 ✓
sequenzy.com Sequenzy
interface AI and machine learning Marketing +2 US 51 ✓ ✓
unipile.com Unipile
interface APIs and SDKs Communications FR 50 ✓
sendrealm.com Sendrealm — Pay for messages, not contacts
interface AI and machine learning Communications +1 47 ✓
emaillistvalidation.com Email List Validation
interface Marketing APIs and SDKs +1 47 ✓
mailinator.com Mailinator: Millions of Inboxes for Email Testing\.
interface Developer tools APIs and SDKs +1 61 ✓
myemailverifier.com https://myemailverifier.com llms.txt
interface Communications Marketing 47 ✓
countdownmail.com CountdownMail
46 ✓
fidelizador.com Fidelizador
interface Marketing Communications 51 ✓
emailvalidation.io emailvalidation.io
interface APIs and SDKs Developer tools 51 ✓ ✓
emailvendorselection.com Email Vendor Selection: Find the best email service provider
informational Marketing Business software 52 ✓
ffraud.com FFraud
interface Cybersecurity APIs and SDKs 51 ✓ ✓
oxemis.com Oxemis
interface Communications APIs and SDKs +1 FR 46 ✓
samotpravil.ru SaM oTPravil
interface Marketing Communications +1 RU 48 ✓
sendx.io SendX
interface Marketing Communications 53 ✓
envialosimple.com EnvíaloSimple
interface Marketing Communications 49 ✓
mailsac.com Mailsac
interface Developer tools APIs and SDKs 50 ✓
parseur.com Parseur
interface AI and machine learning APIs and SDKs +1 52 ✓
linkmobility.com LINK Mobility
interface Communications APIs and SDKs US 53 ✓
textmagic.com Textmagic
interface Communications APIs and SDKs 59 ✓
allegrow.co Allegrow
interface Productivity Business software +1 US 46 ✓
close.com Close CRM
informational Marketing US 52 ✓
amplemarket.com Amplemarket: The All-in-One AI Sales Platform
informational Marketing AI and machine learning +1 US 53 ✓
omnisend.com llms.txt for Omnisend.com
documentation Marketing 54 ✓
abstractapi.com Abstract API
interface APIs and SDKs Cybersecurity US 58 ✓
sendfox.com SendFox
interface Marketing Communications 60 ✓
gupshup.io Gupshup Documentation Documentation
documentation US 49 ✓
monday.com monday.com
documentation AI and machine learning Marketing 67 ✓
contactout.com ContactOut
interface Data and analytics Marketing +1 62 ✓
luxsci.com LuxSci
interface Healthcare Communications US 58 ✓
apivoid.com APIVoid
interface Cybersecurity APIs and SDKs US 54 ✓ ✓
unspam.email Unspam
interface Marketing US 47 ✓
supernotes.app Supernotes
transactional Productivity 52 ✓ ✓
emailable.com Emailable
documentation 58 ✓
getitsms.com Get it SMS: India No 1 SMS and Email Marketing Service Since 2000
transactional Marketing Communications IN 47 ✓
zapmail.ai Zapmail
interface Communications Business software +1 DE 55 ✓ ✓
village.ai Village (village.ai): relationship intelligence
interface AI and machine learning Business software 60 ✓ ✓
getfernand.com Fernand
interface AI and machine learning Marketing +2 49 ✓
inmobile.com inMobile
documentation Communications Marketing 46 ✓
duocircle.com DuoCircle
documentation Cybersecurity Communications US 55 ✓ ✓
usercheck.com UserCheck
interface Cybersecurity APIs and SDKs +1 49 ✓
topol.io Topol
transactional Marketing Developer tools 47 ✓
cometchat.com CometChat
interface AI and machine learning Communications +2 56 ✓ ✓
breakcold.com Breakcold
interface Marketing AI and machine learning +2 US 51 ✓
zanfia.com Zanfia
interface AI and machine learning Ecommerce +2 US 51 ✓ ✓
octavehq.com Octave
interface AI and machine learning Marketing +1 US 47 ✓
mailerlite.com MailerLite
interface Marketing 66 ✓
hyvor.com HYVOR
interface Business software 59 ✓
valibot.dev Valibot
documentation Developer tools Documentation and reference 51 ✓ ✓
improvmx.com ImprovMX
interface Communications 56 ✓
beehiiv.com beehiiv
interface Marketing 70 ✓ ✓
formstack.com Formstack
interface Marketing Productivity +1 66 ✓
zeliq.com Zeliq
interface Marketing Business software US 49 ✓
formspree.io Formspree
interface Developer tools APIs and SDKs 57 ✓
lastdatabase.com LastDatabase
interface Data and analytics Marketing +1 US 47 ✓
digitalaka.com Digital Aka: SMTP Server \| Bulk Emails \| Bulk SMS
transactional Marketing Communications US 46 ✓
mailsoftly.com Mailsoftly
interface Marketing Communications 50 ✓ ✓
web3forms.com Web3Forms
interface APIs and SDKs Developer tools 54 ✓
smailpro.com SmailPro
interface Communications 61 ✓ ✓
warmy.io Warmy.io
interface Marketing AI and machine learning +1 50 ✓
westfax.com WestFax — HIPAA-compliant cloud fax
interface Communications US 47 ✓
woodpecker.co Woodpecker
interface Marketing Business software +1 54 ✓
mijn.host mijn.host
interface Infrastructure APIs and SDKs NL 62 ✓
iteratehq.com Iterate
interface Marketing Business software 60 ✓
mail.tm Mail.tm
interface Communications 53 ✓ ✓
dolist.com Dolist
interface Marketing Communications FR 47 ✓
buysellads.com BuySellAds
interface Marketing US 61 ✓
infobip.com Infobip
interface AI and machine learning Communications +1 DE 56 ✓
myclickfunnels.com ClickFunnels
interface Marketing Ecommerce +2 59 ✓
salesql.com SalesQL
interface Marketing APIs and SDKs +1 47 ✓
tason.com TAS (Tason Automation Service)
interface Marketing Communications KR 57 ✓
gorilladash.com Gorilla Dash
interface Marketing Business software +1 US 48 ✓
gogs.io Gogs: A painless self-hosted Git service
interface Developer tools Open source projects 58 ✓ ✓
telesign.com Telesign: Phone Number, SMS \& Identity Verification APIs \| Telesign
interface Communications Authentication and identity +1 US 58 ✓
lightfield.app Lightfield
interface Marketing Business software US 51 ✓
audienceful.com Audienceful
interface AI and machine learning Marketing +3 US 46 ✓
hunter.io Hunter
interface AI agents and MCP Business software +1 62 ✓ ✓
opensrs.com OpenSRS
interface Ecommerce Infrastructure +3 NL 58 ✓
manatal.com Manatal | Pioneer in AI-Powered Recruitment Software and Recruitment CRM
interface Marketing Recruiting and careers +1 US 56 ✓
sendtric.com Sendtric
interface Marketing Communications 58 ✓
itsconvo.com Convo
interface Marketing AI agents and MCP +2 US 46 ✓
salesforge.ai Salesforge
documentation Marketing Communications 52 ✓
faceswapai.com FaceSwapAI
interface AI and machine learning 51 ✓ ✓
mailmodo.com Mailmodo
documentation Data and analytics Marketing +1 US 60 ✓ ✓
wittysparks.com WittySparks
documentation AI and machine learning Cybersecurity +1 47 ✓
autobound.ai Autobound
interface Data and analytics APIs and SDKs +1 US 55 ✓ ✓
reachstream.com ReachStream
interface Data and analytics Business software 50 ✓ ✓
smshosting.it Smshosting
interface Marketing Communications IT 46 ✓
particle.pro Particle Data Platform
interface Data and analytics AI and machine learning +3 US 47 ✓
mailtester.com MailTester
interface Communications AI agents and MCP +1 51 ✓
mxtoolbox.com MxToolbox
interface Cybersecurity DevOps and observability +1 65 ✓
designmodo.com Designmodo: Email and Website Builder
interface Design Marketing US 63 ✓
dig.ua DIG.UA
interface Infrastructure APIs and SDKs +1 UA 52 ✓
nsin.ir nsin (انسین)
interface Infrastructure Cybersecurity IR 48 ✓
supportbee.com SupportBee
interface Business software Productivity 51 ✓
mailtester.ninja Mail Tester Ninja
informational Marketing GB 52 ✓
productboard.com Productboard
interface AI and machine learning Productivity US 60 ✓
campfire.ai Campfire
interface Finance and payments Business software +1 48 ✓
val.town Val Town
interface Developer tools US 55 ✓
nureply.com NuReply
interface Marketing AI and machine learning 53 ✓ ✓
yespo.io Yespo
documentation Data and analytics Ecommerce +1 IE 50 ✓
apollo.io Apollo.io
interface Marketing Business software +2 59 ✓
rentahuman.ai RentAHuman
interface AI and machine learning AI agents and MCP +1 56 ✓ ✓
bigdatacloud.com BigDataCloud
interface APIs and SDKs Data and analytics US 57 ✓
daylite.app Daylite
documentation Marketing Productivity +1 52 ✓
benchmarkemail.com Benchmark Email
transactional Marketing US 63 ✓
perspective.co Perspective
interface Marketing AI and machine learning +1 US 50 ✓
coritan.com Coritan
interface Gaming Infrastructure GB 51 ✓ ✓
privy.com Privy
interface Ecommerce Marketing US 62 ✓
fax.plus Fax.Plus
interface Healthcare APIs and SDKs +1 US 57 ✓
pitchlane.com Pitchlane
interface Marketing 48 ✓
spoki.com Spoki — WhatsApp Business API Platform
documentation AI and machine learning Marketing +1 US 54 ✓ ✓
fulcrumapp.com Fulcrum
documentation Business software 57 ✓
generect.com Generect
interface Marketing Business software +1 47 ✓
tremendous.com Tremendous (https://www.tremendous.com) > The simplest way for businesses to send digital payouts, gift cards, and incentives globally—trusted by 10,000+ organizations.
transactional Finance and payments Business software 53 ✓
wiro.ai Wiro AI
interface AI and machine learning APIs and SDKs +1 45 ✓
dnsimple.com DNSimple
transactional Infrastructure US 66 ✓
mailchimp.com Mailchimp - Complete Web Content Analysis
informational FR 71 ✓
klazify.com Klazify
interface APIs and SDKs Data and analytics 50 ✓ ✓
saleshandy.com Saleshandy
interface Marketing Business software 59 ✓
esendex.co.uk Esendex UK: We’re here to help you tap into the true potential of mobile messaging\.
interface Communications APIs and SDKs GB 50 ✓
postmansmtp.com Post SMTP
documentation Communications Developer tools US 49 ✓
millionverifier.com MillionVerifier
interface Business software Marketing 54 ✓ ✓
site.pro Site.pro
interface Design Ecommerce +2 DE 57 ✓
dyspatch.io Dyspatch
documentation Marketing US 46 ✓
wpmailsmtp.com WP Mail SMTP
documentation Marketing Developer tools +1 54 ✓
noip.com No-IP
interface Infrastructure APIs and SDKs US 64 ✓
zerobounce.net https://www.zerobounce.net/ llms.txt
transactional Marketing 55 ✓ ✓
melissa.com melissa.com
interface APIs and SDKs Data and analytics US 63 ✓ ✓
knock.app Knock
interface Marketing Communications 60 ✓
thunderbit.com Thunderbit
interface AI and machine learning Developer tools 54 ✓
addevent.com AddEvent
interface Events and conferences APIs and SDKs IE 62 ✓
siteor.com Siteor — website builder and CMS
transactional Design Ecommerce +1 IE 49 ✓
octopush.com Octopush
interface Communications Marketing US 47 ✓
glockapps.com GlockApps — Email Deliverability & Inbox Placement Testing
interface Communications 53 ✓
axl.tech AXL
interface Marketing AI agents and MCP +1 US 47 ✓
ecomail.cz Ecomail
interface AI and machine learning Marketing +1 CZ 48 ✓
novu.co Novu
interface AI and machine learning Communications +2 US 53 ✓
usefini.com Fini AI
interface AI and machine learning Finance and payments +2 55 ✓ ✓
getdex.com Dex
interface Marketing Business software 54 ✓ ✓
cleverreach.com CleverReach – Intuitives E-Mail-Marketing-Tool
interface Marketing Communications IE 56 ✓
cai.com CAI.com
interface AI and machine learning AI agents and MCP +1 52 ✓
checkleaked.cc CheckLeaked.cc
interface Cybersecurity APIs and SDKs 49 ✓
bsandco.us BS&Co — Ecommerce Email Marketing Agency (Klaviyo)
documentation Ecommerce Marketing US 46 ✓
openui.com OpenUI
interface Developer tools AI and machine learning US 52 ✓ ✓
visualping.io Visualping product and company facts
interface DevOps and observability US 46 ✓
formbot.com Formbot
interface AI and machine learning No-code and automation +1 US 47 ✓
hostinger.com Hostinger
interface Design Infrastructure +2 73 ✓ ✓
sprout24.com Sprout24 - Build Right Email Marketing Stack with Confidence
documentation Marketing 47 ✓
otterly.ai OtterlyAI
interface Data and analytics Marketing +1 NL 63 ✓ ✓
silolobby.com SiloLobby
transactional Infrastructure DE 50 ✓ ✓
formcarry.com formcarry
interface AI and machine learning Developer tools +1 48 ✓
odds-api.io Odds API (odds-api.io)
interface APIs and SDKs Data and analytics US 50 ✓ ✓
letsignit.com Letsignit
interface Marketing Business software US 59 ✓
customer.io Customer.io
interface AI and machine learning Data and analytics +2 US 57 ✓
mainwp.com MainWP
interface Business software Open source projects US 52 ✓
bitdefender.com Bitdefender | Global Leader in Cybersecurity
transactional Cybersecurity 67 ✓
mtalkz.com Mtalkz
interface Marketing Communications 47 ✓
dropcowboy.com Drop Cowboy
documentation Marketing Communications 54 ✓ ✓
pwhosts.com PW Hosting
interface Infrastructure 47 ✓
osir.com OSIR - AI-Native Domain Registrar
interface Infrastructure Developer tools +2 US 48 ✓
cleanlist.ai Cleanlist
interface Marketing AI agents and MCP US 52 ✓ ✓
klaviyo.com Klaviyo – AI Content Guidance File
interface AI and machine learning Marketing 64 ✓
supertokens.com SuperTokens
documentation Cybersecurity Authentication and identity +1 46 ✓ ✓
base44.com Base44
documentation Developer tools No-code and automation 62 ✓
epsteinexposed.com Epstein Exposed
interface Data and analytics APIs and SDKs 54 ✓ ✓
mailivery.io Mailivery
interface Marketing Communications US 46 ✓
sixtyfour.ai Sixtyfour
interface AI agents and MCP APIs and SDKs +1 US 50 ✓ ✓
clearout.io Clearout
transactional Marketing Business software 53 ✓
xposedornot.com XposedOrNot
interface Cybersecurity APIs and SDKs 51 ✓ ✓
yotpo.com Yotpo
documentation Ecommerce Marketing US 66 ✓
parsio.io Parsio
interface AI and machine learning Data and analytics 48 ✓
docevent.io DocEvent
interface Infrastructure 48 ✓
temp-number.com TempNumber
transactional Communications 58 ✓ ✓
tusfacturas.app TusFacturasAPP
interface Finance and payments APIs and SDKs +1 46 ✓
leadboxer.com LeadBoxer
interface AI and machine learning APIs and SDKs +1 NL 52 ✓
kickbox.com Kickbox
documentation Marketing Communications 48 ✓
paragraph.com Paragraph
interface AI and machine learning Developer tools +1 63 ✓
funnelfox.com FunnelFox
documentation Marketing Finance and payments 47 ✓
mailbutler.io Mailbutler
documentation Productivity DE 53 ✓
turso.tech Turso
documentation Databases US 58 ✓ ✓
idrelay.com IdRelay
interface Marketing Communications SE 51 ✓ ✓
wappalyzer.com Wappalyzer
interface Data and analytics Marketing 65 ✓ ✓
usefathom.com Fathom Analytics
interface Data and analytics APIs and SDKs US 66 ✓ ✓
tines.com Tines
interface No-code and automation AI agents and MCP US 65 ✓ ✓
notifyre.com Notifyre
interface Communications Business software US 46 ✓
autoreisen.com AutoReisen
documentation Travel NL 50 ✓
inforu.co.il inforu
interface Marketing Communications IL 48 ✓
magileads.com LLMs.txt - AI Language Model Instructions
interface Marketing FR 52 ✓ ✓
tailride.so Tailride
interface Finance and payments Business software US 47 ✓
inwx.ch INWX
interface Infrastructure CH 50 ✓
aweber.com AWeber: Email Marketing & Automation for Small Businesses
transactional Marketing Communications 65 ✓
horizonwebref.com HorizonWebRef
documentation Business software Sports and fitness US 53 ✓ ✓
abnormal.ai Abnormal AI
documentation Cybersecurity AI and machine learning US 60 ✓
forms.app forms.app
interface Business software Productivity 62 ✓
dadata.ru «Дадата»
interface APIs and SDKs Business software RU 53 ✓
circle.so Circle
interface AI and machine learning Design +3 59 ✓ ✓
lightspark.com Lightspark
interface Finance and payments APIs and SDKs US 57 ✓
inwx.de INWX
interface Infrastructure APIs and SDKs DE 57 ✓
hypermatic.com Hypermatic
interface Design 61 ✓ ✓
unthread.io Unthread
interface Business software Productivity US 54 ✓ ✓
zilliant.com Zilliant
interface Business software US 50 ✓
tomba.io Tomba Email Finder
interface Marketing 51 ✓
swiftnodes.io SwiftNodes
interface Infrastructure APIs and SDKs +1 53 ✓ ✓
sutra.co Sutra
interface Business software Education US 51 ✓
plain.com Plain — AI support infrastructure for B2B teams
interface Marketing AI and machine learning +3 US 57 ✓ ✓
peakmetrics.com PeakMetrics
interface Marketing Data and analytics US 52 ✓ ✓
dexpose.io DeXpose
informational Cybersecurity Finance and payments +1 46 ✓
officernd.com OfficeRnD
documentation Business software 58 ✓