Simple Integration
One HTTP endpoint. Any language, from cURL to your favorite client. Running in under 5 minutes.
Know which signups are real.
Vouchley scores every new signup in real time. Block bots, disposable emails, VPN/Tor abuse, and AI-driven fraud before they hit your database — in one API call.
verify.sh
curl -X POST https://api.vouchley.getrevlio.com/v1/verify \
-H "Authorization: Bearer vch_live_..." \
-H "Content-Type: application/json" \
-d '{
"email": "john.doe@example.com",
"ip_address": "192.168.1.1"
}'Response JSON200 OK
{
"score": 92,
"recommendation": "approve",
"reasoning": "Valid corporate email at established domain."
}Built for developers
Sub-second Verification
Cache hits return in under 100ms. Fresh checks run every signal in parallel — under 1.5s p95.
Private by Default
Signup data is never sold or shared. We cache scores, not identities. EU residency available on Pro.
How it works
One API call between
signup and database.
- 01
Send the signup
POST the email and IP address to /v1/verify the moment a user submits your signup form. Authenticate with a Bearer API key — no SDK, no client library required.
- 02
Get a score in <1.5s
Vouchley checks email validity, domain reputation, IP risk, VPN/Tor presence, and bot patterns in parallel. You get a 0–100 trust score plus a plain-English reasoning string.
- 03
Decide the next step
Use the recommendation — approve, review, or block — to gate account creation, trigger email verification, or silently drop the bad ones. Your call, fully under your control.
What we detect
Six fraud signals,
one trust score.
Each verify call runs the full stack in parallel. You get a single decision plus the breakdown of every signal that fired — useful for tuning, debugging, and explaining a block to support.
Disposable & temporary emails
Mailinator, 10MinuteMail, Guerrilla Mail, and 2,000+ throwaway providers — caught at the syntax + MX layer.
VPN, proxy & Tor exits
Live IP reputation feeds flag VPNs, residential proxies, and Tor exit nodes used to mask abusive signups.
Datacenter & hosting IPs
Signups from AWS, GCP, Hetzner, OVH, and other ASNs that legitimate consumers almost never use.
AI-driven bot signups
Catches the new wave of agentic bots that mimic human typing patterns and pass legacy CAPTCHA challenges.
New & suspicious domains
Flags shell domains registered in the last 30 days, dead MX records, and domains without a live website.
Gmail alias & role-based tricks
Normalises +tags and dots in Gmail addresses; flags info@, admin@, and sales@ that rarely belong to one real user.
How we stack up
How we compare
More signals per check, credits that never expire. Pricing verified from each vendor's public pricing page on April 28, 2026.
| Service | Checks per call | 10K verifications | Credits expire? |
|---|---|---|---|
| Vouchley | Email + IP + VPN + domain + bot | $99 | Never |
| Kickbox | Email only | ~$100 PAYG | Never |
| ZeroBounce | Email + AI scoring | ~$100 PAYG | Subscription tiers expire |
| NeverBounce | Email only | ~$80 PAYG | 12 months |
| DeBounce | Email only | ~$20 PAYG | Never |
| Sift | Full fraud platform | Enterprise quote | Annual contract |
Vouchley's per-check cost reflects multi-signal coverage. Email-only validators like DeBounce are cheaper per check but won't catch bot signups, datacenter IPs, VPN abuse, or AI-driven fraud.
FAQ
Frequently asked
questions.
- What is Vouchley?
- Vouchley is a real-time signup verification API for SaaS companies. You send an email and an IP address, and Vouchley returns a 0–100 trust score with a recommendation — approve, review, or block — in under 1.5 seconds.
- How is this different from email validation?
- Email validation only checks whether an inbox exists. Vouchley combines email checks with IP reputation, VPN/Tor detection, domain age, and behavioural signals to score the entire signup, not just the address. You get a single decision instead of a pile of raw signals.
- What does Vouchley actually detect?
- Disposable emails, VPN/proxy/Tor traffic, datacenter IPs (AWS, GCP, Hetzner), AI-driven bot signups, brand-new shell domains, Gmail alias tricks, and role-based addresses. Each call returns a breakdown so you can see exactly which signals fired.
- How fast is the API?
- Cache hits return in under 100 ms. Fresh checks run every signal in parallel and complete in under 1.5 seconds at the p95. We measure latency continuously and publish it in your dashboard.
- How much does it cost?
- Pay-as-you-go credit packs starting at $29 for 3,000 verifications. New accounts get 100 free credits — no card required. Credits never expire.
- Do you store my user data?
- We hash IPs and store only what's needed to compute the score and let you audit the call later. We never sell, share, or train on your signup data. EU data residency is available on the Pro plan.
- Can I integrate without writing custom code?
- Yes — Vouchley is a single HTTP endpoint that any language can call. Most teams ship the integration in under 30 minutes. The docs include drop-in examples for Node, Python, Go, Ruby, and PHP.
Built by
Built solo. Run with care.
Vouchley is built and maintained by Rohit, a solo founder shipping from India. No fundraising, no growth team, no upsell calls — just an API designed to be cheap, fast, and easy to drop into your signup flow. If you have feedback or a feature request, you'll hear back from me directly.