Stop fraud
at the API layer

One POST request. Burner emails, Tor traffic, carding attacks, proxy abuse — scored and blocked before the transaction ever hits your payment processor.

Start blocking → See how it works

api.burnerblocker.com

# scan a transaction
$ curl -X POST /v1/scan \
-H "x-api-key: bb_k7x..." \
-d '{
   "email": "tmp29x@tempmail.com",
   "ip_address": "185.220.101.34",
   "bin": "424242"
}'

# response — 12ms
{
"risk_score": 92,
"verdict": "BLOCK",
"checks": {
    "disposable_email": true,
    "tor_exit_node": true,
    "high_risk_bin": true
}
}

When to use this

Sound familiar?

One API call before you charge, ship, or create the account. That's it.

checkout

$400 order. Tempmail email. Card doesn't match their country.

You ship it, eat the chargeback 3 weeks later. One call to /v1/scan before you charge — you'd have known in 12ms.

BLOCK · disposable_email · bin_risk

signup

10,000 free-tier users. 4,000 of them are the same guy.

Rotating guerrillamail, yopmail, 10minutemail to farm your free credits. Scan at registration — disposable domain? Don't create the account.

BLOCK · disposable_email · email_velocity

payments

One IP. 23 different card numbers. Last hour.

Carding attack — every decline costs you processor fees, enough of them gets your account frozen. We track BIN diversity per IP and block it on attempt 2, not attempt 23.

score: 100 · bin_diversity · datacenter_ip

promos

Your 20%-off code. Used 11 times. Same person.

Different disposable emails, same IP subnet. Your call whether to honor it — but at least now you know.

platform

5-star reviews from accounts created 4 minutes ago.

VPN IPs, keyboard-mash emails, same hour. Flag for REVIEW or block outright.

REVIEW · vpn_or_proxy · email_entropy

Detection Signals

Six layers. One call.

Every transaction gets scored across all six detection engines simultaneously. No waterfall, no latency penalty.

Email Hygiene

135k+ disposable domain database. Gmail dot and plus-tag alias stripping. Pattern analysis across signups. Entropy scoring for gibberish addresses.

TOR

Tor Detection

Real-time Tor exit node list. O(1) lookups. Transactions from the Tor network get flagged instantly. Updated continuously.

VELOCITY

Velocity Engine

Rolling-window rate limits on IPs and emails. Detects scripted attacks, credential stuffing, and rapid-fire signups in real time.

BIN

Carding Detection

BIN diversity tracking per IP. If one IP is cycling through card numbers, the score goes to 100. Catches carding attacks before they hit your processor.

IP Intelligence

VPN, proxy, and datacenter detection. ASN analysis against known hosting providers. Geo-risk scoring and multi-account tracking per IP.

PHONE

Phone Validation

Format validation and pattern analysis. Catches throwaway VoIP numbers, invalid formats, and disposable phone services.

Integration

Three lines of code. That's it.

Add BurnerBlocker to your checkout flow in under five minutes. No SDKs, no dependencies, no vendor lock-in.

Subscribe & get your key

Pick a plan below, receive your API key via email in seconds. One key, full access to all detection signals.

POST to /v1/scan

Send the email, IP, and optionally BIN + phone. We return a risk score (0–100) and a verdict: ALLOW, REVIEW, or BLOCK.

Act on the verdict

Block the transaction, flag it for manual review, or let it through. Your rules, our intelligence.

Wall of Love

Teams shipping with BurnerBlocker

"we had a bunch of tempmail signups eating our free tier. added burnerblocker and it cleaned things up pretty quickly. the velocity engine was a nice surprise — didn't expect that on the $19 plan."

Aarav · Founder, Tideform

"we were halfway through building our own disposable email checker when someone linked this. tried it, worked out of the box. saved us a couple weeks at least."

Yuki Tanabe · Developer, CrateAI

"our dispute rate was getting out of hand. the BIN + IP scoring caught a few patterns we were missing. disputes are way down now, honestly worth it just for that."

Lena W. · Founder, Velora Payments

"switched from a much more expensive fraud tool. this does most of what we needed at a fraction of the cost. the webhook integration was easy to set up too."

Veer Kapoor · Developer, CartBee

"a lot of our free signups turned out to be junk — guerrillamail, tempmail, that kind of thing. burnerblocker cut most of it out. our conversion numbers make more sense now."

Kai · Founder, Stackware

"mostly use it for the tor detection. we kept getting bot signups through tor and this handles it well. setup was straightforward, no complaints."

Priya R. · Developer, Driftbase

Pricing

Start free. Scale when ready.

Free plan includes email signals. Upgrade for the full detection suite.

‎

STARTER

No card required

50 scans per month
Email signals only
Sub-50ms response times
Full API access
Great for testing & MVPs

Get free key →

Common questions

How fast is the API?

Typical response times are under 50ms. All detection engines run in parallel — no sequential waterfalls.

What happens if I hit my scan limit?

You'll get a 429 response. Your existing integrations won't break — just the scan calls will be rejected until the next billing cycle, or you can upgrade.

Do I need to send all fields?

Only email is required. IP address, BIN, and phone are optional but improve detection accuracy. The more signals, the better the score.

Can I test before buying?

Yes — the Starter plan is free forever with 50 scans/month. No credit card required. Just enter your email and you'll get an API key instantly.

Is there an SDK?

No. It's a single REST endpoint. curl, fetch, requests, axios — whatever you already use. Zero dependencies.

Stop fraudat the API layer