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Signup protection API for email and domain risk | SignupScore
Detect disposable domains, role accounts, missing mail servers, suspicious addresses, and domain risk. Return allow, review, or block with a clear reason.
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83 % |
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rate.email
Check any email address before it becomes a bad signup. Get a verdict, a 0-100 score, and the exact reasons behind it in one API call.
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82 % |
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SignupShield — Stop fake signups with one API call
Detect disposable emails, risky domains, and suspicious users in milliseconds. Drop-in scoring for any signup form.
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82 % |
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Email API for developers · Zend24
Transactional email API on top of Amazon SES: verify your domain, send with one HTTP call and track every delivery, bounce and open. European infrastructure,...
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80 % |
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istmp.email | Stop fake signups and disposable emails in real time
Detect disposable email addresses, suspicious domains, and risky signup patterns with a fast API built for modern SaaS products. Risk scoring, not just a bla...
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80 % |
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VerifyAtlas — Pre-Signup Intelligence API
VerifyAtlas helps developers stop fake signups with disposable email detection, temporary phone checks, domain intelligence, and risk scoring.
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80 % |
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Transactional Email for SaaS — Reliable, Self-Hosted, Developer-First — BejaFly
Send transactional emails that land in the inbox. REST API, full deliverability tools, SPF/DKIM/DMARC verification. Start free, scale to 100K emails/month.
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80 % |
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VerifyMail — Tell who's really behind an email
Stop fake signups with a single API call. Detect disposable, catch-all, and abusive email addresses with explainable signals.
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80 % |
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Email verification for developers | vrfymail
Catch typos, role accounts, disposable mailboxes, and spam traps in a single call. The only verifier that keeps a per-customer bounce history so your signal...
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80 % |
|
Free Email Validation API for Cleaner Signups | Trueform
Use a free email validation API to check syntax, MX records, disposable domains, and common typos in one request. It works without an API key.
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80 % |
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CheckNivo — Verify phone, email, IP and domain in one call
Validate phone numbers, email addresses, IP addresses and domains through one JSON API — then cross-reference them in a single call to catch what each check...
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80 % |
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SignupShield — Real-Time Email Fraud & Risk Intelligence API
Deterministic 100ms avg email fraud & risk intelligence for modern apps and autonomous agent loops. Block 77,000+ burner domains, Day-0 MX probing, and typo...
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80 % |
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MailRambo - Email Verification API: Know Before You Send
Email verification API with strict yes/no answers. Block fake signups, protect deliverability, and clean lists. API on every plan, 100 free checks a month.
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79 % |
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Spamova | AI-Powered Disposable Email Detection API
Spamova is an AI-powered disposable email detection API that helps you filter out throwaway addresses before they reach your system.
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79 % |
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CheckMail · Email verification that doesn't suck
Email verification API for developers. Syntax, DNS, SMTP, disposable, catch-all detection. One request, one JSON response. Credits never expire.
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79 % |
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PureSignup - Stop Fake Signups & Protect Your Business
Tired of disposable emails ruining your user data? PureSignup blocks 159,141+ verified disposable domains instantly. Start your free trial today and protect...
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79 % |
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isburner — disposable email detection API
Disposable email detection API. EU-hosted, GDPR compliant. Flag burner, temporary, and disposable signups in under 200ms.
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79 % |
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Stop Disposable Emails from Creating Spam Accounts - UserCheck
Block disposable emails with our API. Start for free today.
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78 % |
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ShieldSignup | Block Temporary & Disposable Emails at Signup
Block temporary and disposable emails at signup with ShieldSignup — a fast API that detects throwaway domains, risky IPs, and velocity abuse before accounts...
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78 % |
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nofake.email — disposable email detection API
Block disposable and burner email signups at the edge. A single GET request tells you if an address is disposable, suspicious, or real — 17k-domain blocklist...
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78 % |
Detected social media networks