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31M visits/mo+5.5%#8 Coding & Development
LayerCall
Fraud prevention API scoring IP, email, phone, domain and device in one call
$49Starting price
3.8KMonthly visits
10Popularity
About LayerCall
LayerCall provides a unified Trust Intelligence API for fraud prevention that scores identity signals in a single request. It evaluates IP addresses, email addresses, phone numbers, domains and devices to produce a 0–100 risk score with an allow, review or block verdict. The service combines device fingerprinting, AI agent authorization and multiple fraud signals to detect sophisticated fraud attempts such as VPN usage, disposable emails or automated browsers. Real-time intelligence is maintained through feeds refreshed every six hours, including Tor exit nodes, commercial VPNs and abuse lists. The API supports 15 endpoints covering identity verification, domain intelligence, phone validation and custom rule management. Responses include detailed breakdowns of top signals in plain language, enabling precise decision-making without black-box scoring. Processing times are typically under 0.1 seconds for cached lookups and 1–4 seconds for first-time requests that query external DNS and RDAP servers.
Key features
- Unified Signup Score combining five identity signals
- IP intelligence with VPN, proxy and Tor detection
- Email validation including disposable and role-based detection
- Phone validation with numbering-plan and VoIP detection
- Domain intelligence with registration age and mail configuration checks
- Device fingerprinting and bot detection
- Custom allow/block rules with CIDR and ASN support
- Fraud reporting network for shared threat intelligence
Use cases
- Fraud prevention in online signups and account creation
- Payment fraud detection in e-commerce transactions
- Bot and automated traffic mitigation for web applications
Pros
- Unified scoring across IP, email, phone, domain and device in one API call
- Device fingerprinting and AI agent authorization to detect advanced fraud methods
- Real-time feeds refreshed every six hours including Tor exit nodes and abuse lists
- Detailed breakdown of top signals in plain language for transparency
- Free tier with 1,000 lookups per month and no credit card required
Cons
- No free tier beyond 1,000 lookups per month
- Pricing is credit-based with no flat-rate option
- Requires integration via API with no native user interface
Frequently asked questions about LayerCall
What does LayerCall do?
LayerCall provides a unified Trust Intelligence API that scores identity signals such as IP addresses, email addresses, phone numbers, domains, and devices in a single request to assess fraud risk. It delivers a 0–100 risk score with an allow, review, or block verdict based on real-time intelligence and fraud detection signals.
Who is LayerCall suitable for?
LayerCall is designed for businesses and platforms that need to prevent fraud during user signups, account creation, or transactions, particularly those handling high volumes of online interactions where identity verification and risk assessment are critical.
How does LayerCall integrate with existing systems?
LayerCall offers a RESTful API with 15 endpoints that can be integrated into signup flows, identity verification systems, or fraud prevention pipelines. It supports standard HTTP requests and returns structured responses for easy decision-making.
What kind of fraud signals does LayerCall detect?
LayerCall detects a range of fraud signals including VPN usage, Tor exit nodes, disposable emails, role accounts, VoIP numbers, newly registered domains, headless browsers, and AI agent activity, among others.
How often is LayerCall's intelligence updated?
LayerCall's real-time intelligence feeds, including Tor exit nodes, commercial VPNs, and abuse lists, are refreshed every six hours to ensure up-to-date fraud detection capabilities.
How do I get started with LayerCall?
To get started, create a free account on LayerCall's website to obtain an API key. The setup takes about five minutes, and the service offers 1,000 free lookups per month without requiring a credit card.
LayerCall traffic & engagement
layercall.com · third-party estimates from Similarweb
Data as of Sep 2026Full AI website ranking →
Monthly visits · Sep 20263.8K+704.5% MoM
Rank among AI websites#5,787▲ 2002 vs last monthof 8,652 tools on aitoolnavio™
Top marketIndonesia36%Top 5 countries bring 100% of visits
Pages per visit1.22Average pages viewed
Bounce rate41%Leave after one page · lower is better
Similarweb global rank#5,020,364#913,410 in United Kingdom
Traffic trend
Last 2 months · grows by one month every month
- Aug 2026470
- Sep 20263.8K+704.5%
Top countries
Share of visits · estimated visits
Compared with similar tools
Coding & Development · Sep 2026
Traffic figures are third-party estimates, good for scale and trends; they can differ from a company's own numbers. Updated monthly.
