All-in-one backend for SaaS products.
Authentication, validation, fraud detection, payments intelligence, and global data, delivered through one unified API.
Trusted by teams shipping real products
Production-grade systems
Each system composes proprietary signals into a single structured decision, delivered in one API call.
Identity & Risk
Block fraud at signup with email, phone, IP, and behavioral signals.
- Risk scoring
- Email, phone, and IP intelligence
- Domain and behavioral signals
Payments Intelligence
Validate BIN, IBAN, and SWIFT data with geolocation mismatch detection.
- BIN & card validation
- IBAN / SWIFT checks
- Transaction risk signals
Global Data
Geocoding, timezones, and public holiday calendars for 100+ countries.
- Geocoding
- Timezones & holidays
- Address intelligence
Data Integrity
Validate and normalize email, phone, and text inputs on submission.
- Input validation
- Text normalization
- Content moderation
Extras
Developer Utilities
Useful tools you shouldn't have to rebuild.
How it works
Choose a system
Pick the problem to solve: identity, payments, global data, or data integrity.
Call a single endpoint
Use high-level endpoints or compose flows as needed.
Get decisions, not raw data
Receive risk scores, validation results, and enriched insights, ready for your product.
Engines
Multiple signals. One structured decision.
Each Engine fans out across validation, networking, and intelligence APIs in parallel, then returns a single structured decision. No scoring logic to build. No pipeline to maintain.
Explore systems{
"email": "[email protected]",
"ip_address": "45.33.32.156",
"phone": "+14155552671"
}
{
"risk_score": 0.87,
"is_safe": false,
"confidence": 0.94,
"flags": ["disposable_email", "vpn_detected"],
"signals": {
"email_valid": true,
"phone_valid": false,
"vpn_detected": true,
"disposable_email": true
}
}
What each field means
risk_score
How risky is this signup? 0 is clean, 1 is high risk.
is_safe
Single yes/no decision. Use this to block or allow the signup.
confidence
How sure the engine is. Higher means fewer false positives.
flags
The specific reasons the user was flagged.
signals
Raw results from each check run in the background.
Infrastructure, not integration glue
Most API aggregators resell third-party calls. We build proprietary pipelines.
- No reliance on third-party APIs
- Proprietary scoring and validation systems
- Unified schema across all endpoints
- Low-latency, high-throughput design
- Built for developers shipping real products
Built for real products
Concrete problems, solved.
SaaS signup protection
Prevent fake accounts, bots, and abuse from day one.
Fintech onboarding
Validate financial data and reduce onboarding friction.
Marketplace fraud prevention
Detect risky users and transactions in real time.
Global product support
Handle international users with accurate data everywhere.
Built for Developer Experience
From solo founders to agencies: precise docs, live playgrounds, and copy-paste examples. Ship integrations in minutes, not days.
Live API Playground
Test every endpoint directly in the docs. See real responses instantly, no code required.
Code Examples
Copy-paste examples in cURL, Python, JavaScript, Go, and more. Every example ships with a Markdown version ready for AI coding tools and agents.
Precise Documentation
Every parameter, response field, and error code documented. No guessing required.
Built for AI Agents
Every API ships with llms.txt, a full Markdown doc, and code examples in AI-paste format. Open any endpoint directly in Claude or ChatGPT with one click. Built for agents, copilots, and LLM-powered products.
Performance You Can Count On
Production-grade edge and EU backend, without running it yourself
Median Latency
200ms
P50 response time
Uptime
99.99%
Last 12 months SLA
Monthly Requests
200M+
Requests processed/month
Data Centers
EU
European Union
Security & Compliance First
Enterprise-grade security for teams of all sizes
Zero Data Retention
By DesignAPI inputs and outputs are never stored. All payloads are processed entirely in volatile memory and purged the moment your HTTP response is delivered.
Data Encryption
ActiveTLS 1.3 enforced for all connections. API inputs and outputs are never written to disk β processing happens entirely in volatile memory.
EU Infrastructure
EUAll data centers located in the European Union. GDPR compliant.
Secure Payments
LemonSqueezySubscriptions and checkout are processed through LemonSqueezy. We never see or store your full payment details.
GDPR / CCPA Compliant
CompliantGDPR-aligned by design β no user input stored, EU-only infrastructure, and data minimization at the core.
API Security
Rate LimitedBuilt-in rate limiting, DDoS protection, and abuse prevention at the edge.
Frequently Asked Questions
Everything you need to know about Requiems API
Still have questions?
Contact our support teamStop rebuilding backend infrastructure. Start shipping product.
One subscription unlocks all four systems. No vendor patchwork, no integration sprawl.
No credit card required β’ Cancel anytime
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