Dev tools · alternatives · 2026

24 alternatives to REST API for Global Address Verification

Automate and personalize direct mail at scale while our nationwide print network speeds delivery, controls postage costs, and keeps every send compliant.

REST API for Global Address Verification is a direct mail platform that automates and personalizes mailings at scale. It combines software tools with a nationwide print and delivery network to speed delivery, control… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. REST API for Global Address Verification launched in 2013; newer entries below may have overtaken it.

1
Lob▲106
Programmatically send physical mail and verify addresses
2013 · lob.com · its alternatives →
2
US Global Mail▲133
Turns every envelope into actionable intelligence
2025 · usglobalmail.com · its alternatives →
3
mailX by mailwarm▲596
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com · its alternatives →
4
US Global Mail - MCP Server▲31
Connect your physical mail directly to AI
Sep 2026 · docs.usglobalmail.com · its alternatives →
5
Give 7B people an instant physical address▲415
Xaddress - Give 7 billion people an instant physical address - roberdam/Xaddress
2016 · github.com · its alternatives →
6
Warmy.io▲417
Boost your email deliverability with an AI driven algorithm
2024 · warmy.io · its alternatives →
7
Email Verify API▲92
Simple email validation API for a $39 lifetime license
2021 · cloudlyn.com · its alternatives →
8
Thanks.io▲146
Direct mail automation platform
2023 · thanks.io · its alternatives →
9
Postnick▲96
Globally simplifies addresses
2021 · postnick.com · its alternatives →
10
Address Validation iO▲17
Validate shipping addresses. Prevent failed deliveries.
2025 · apps.shopify.com · its alternatives →
11
Deliveryman.ai▲186
Cold email infrastructure on autopilot without Gsuite
Jun 2026 · deliveryman.ai · its alternatives →
12
MailAdept by mailwarm▲287
AI Agents & Email deliverability experts on your team
Jul 2026 · mailadept.com · its alternatives →
13
Mailivery▲251
Reach the inbox, not the spam folder
2021 · mailivery.io · its alternatives →
14
Free Email Verifier▲202
The first free and accurate email verification service
2020 · gmass.co · its alternatives →
15
Atomic Mail Agentic▲268
Let your agents read, send, and react to email autonomously
Jun 2026 · atomicmail.ai · its alternatives →
16
Shufti – Address Verification▲5
AI-powered global address verification in seconds.
2019 · shuftipro.com · its alternatives →
17
RealMailers▲137
Send geo-targeted direct mail to 110M+ homes in the US
2017 · realmailers.com · its alternatives →
18
Postalytics▲81
Direct mail automation
2021 · postalytics.com · its alternatives →
19AF
A fake SMTP server for software integration testing▲127
This is a side project of mine. Use this as your SMTP server in a test environment to guarantee that your users don't receive test emails. Looking for feedback, especially on the security side.
2024 · fakemail.stream · its alternatives →
20
Gamalogic▲98
Cutting-edge AI technology to verify your email address
2022 · gamalogic.com · its alternatives →
21
IsTempMail – Detect and block disposable email addresses▲35
Detect and block disposable, temporary, fake email addresses. Fight spam, fraud and free trial abuse. Available as WordPress plugin and via JSON API.
2017 · istempmail.com · its alternatives →
22
EmailAwesome▲39
Validate emails, less bounces & spam reports for 10X less
2024 · emailawesome.com · its alternatives →
23
MailCheck▲49
Stop Free Trial Abuse with Advanced Email Verification
2025 · mail-check.tech · its alternatives →
24
AddressVerify▲3
Residential Address Verification API for Lead Generators
Dec 2025 · addressverify.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →