Yes, security is a top priority at Sthan.io. All API communications are encrypted using TLS/SSL. We do not store the addresses you validate beyond what's needed for processing. Our infrastructure follows industry best practices for data protection, and we comply with GDPR and CCPA privacy regulations.

How can we help you?

Q: What is the difference between address autocomplete and address verification?

Address autocomplete suggests addresses in real-time as users type, helping them quickly select the correct address. Address verification validates a complete address against authoritative postal databases to ensure it's deliverable and correctly formatted. Use autocomplete for form input and verification for data validation before shipping or storing.

Q: What countries does Sthan.io support?

Sthan.io currently supports the United States and India with comprehensive address data coverage. For the USA, we offer address autocomplete, parsing, city autocomplete, and ZIP code lookup. For India, we provide city autocomplete, locality autocomplete, and PIN code lookup services.

Q: How much does Sthan.io cost?

Sthan.io offers flexible pricing starting with a free tier that includes 10,000 API calls per month. Paid plans start at $9/month for additional usage. We offer pay-as-you-go pricing with no long-term contracts required. Visit our pricing page for detailed plan information and volume discounts.

Q: Is there a free tier?

Yes! Sthan.io offers a generous free tier with 10,000 API calls per month at no cost. No credit card is required to sign up. This allows you to test our APIs and integrate them into your application before committing to a paid plan.

Q: What programming languages are supported?

Sthan.io APIs are REST-based and work with any programming language that can make HTTP requests. We provide code examples for JavaScript, Python, PHP, Ruby, Java, C#/.NET, Go, and cURL. Our APIs return JSON responses that are easy to parse in any language.

Q: How fast is the API response time?

Sthan.io APIs are designed for speed with average response times under 100 milliseconds. Our infrastructure is hosted on cloud platforms with global edge locations to ensure low latency for users worldwide. Real-time autocomplete suggestions appear instantly as users type.

Q: How accurate is the address data?

Sthan.io maintains high accuracy by sourcing data from authoritative postal databases and regularly updating our datasets. For USA addresses, our data is aligned with USPS standards. Our customers report up to 80% reduction in failed deliveries after implementing our address verification APIs.

Q: What is geocoding vs reverse geocoding?

Geocoding converts a street address into geographic coordinates (latitude and longitude). Reverse geocoding does the opposite - it converts coordinates into a human-readable address. Geocoding is used for mapping addresses, while reverse geocoding is useful for mobile apps that need to display a user's current location as an address.

Search our knowledge base or browse categories below

Getting Started

Learn the basics of Sthan.io APIs

Pricing & Billing

Plans, payments, and subscriptions

Technical Integration

API setup, SDKs, and code examples

Data & Coverage

Accuracy, updates, and supported regions

Security & Compliance

Data protection and privacy policies

Contact Support

Get help from our team

Getting Started

Learn the basics of Sthan.io and our address APIs

What is Sthan.io?

Sthan.io is an address and location data infrastructure platform that provides APIs for address autocomplete, address verification, address parsing, geocoding, and more.

We help businesses:

Improve data quality with accurate address validation
Reduce failed deliveries by up to 80%
Enhance user experience with real-time autocomplete
Save time with instant address entry

Our APIs currently support the United States and India with comprehensive address data coverage.

What is the difference between address autocomplete and address verification?

Feature	Address Autocomplete	Address Verification
Purpose	Suggests addresses as users type	Validates complete addresses
When to use	During form input	Before shipping/storing data
User interaction	Real-time suggestions	Background validation
Output	List of matching addresses	Validation status + standardized address

Best practice: Use both! Autocomplete for fast input, then verify before processing.

What countries does Sthan.io support?

Sthan.io currently provides comprehensive address data coverage for:

United States

Address Autocomplete
Address Parser
City Autocomplete
ZIP Code Lookup

India

City Autocomplete
Locality Autocomplete
PIN Code Lookup

We're actively expanding coverage to additional countries. Contact us if you need coverage for other regions.

How do I get started with Sthan.io?

Sign up for free No credit card required

Get your API key Available in your dashboard immediately

Make your first API call Use our documentation and code examples

Integrate into your app Works with any programming language

10,000 free API calls per month Start building today at no cost

Get Started Free

What is geocoding vs reverse geocoding?

Geocoding

Converts a street address into geographic coordinates (latitude/longitude).

Example: "123 Main St, New York, NY" 40.7128, -74.0060

Use case: Plotting addresses on a map

Reverse Geocoding

Converts coordinates into a human-readable address.

Example: 40.7128, -74.0060 "123 Main St, NY"

Use case: Showing user's current location

Pricing & Billing

Everything about plans, payments, and subscriptions

How much does Sthan.io cost?

Sthan.io offers flexible, affordable pricing:

Free

$0/month

10,000 API calls/month

Paid

From $9/month

Additional usage

Enterprise

Custom

Volume discounts

View Full Pricing

Is there a free tier?

Yes! Generous free tier included 10,000 API calls per month at no cost

No credit card required to sign up
Access to all API endpoints
Full documentation and support
Perfect for testing and small projects

How does billing work?

Subscription-based Pay monthly or annually
Automatic renewal Your plan renews at the start of each billing cycle
Usage tracking Monitor your API calls in real-time from your dashboard
Secure payments All major credit cards accepted via Stripe

Can I cancel anytime?

Yes, cancel anytime with no fees We believe in earning your business through great service

No cancellation fees
No long-term contracts
Access continues until end of billing period
Cancel directly from your dashboard

What happens if I exceed my plan limit?

Email notifications We'll alert you at 80% and 100% usage
Dashboard warnings Real-time usage tracking shows your remaining calls
Easy upgrades Upgrade to a higher plan from your dashboard

No surprise charges - we don't automatically charge overage fees.

Do you offer annual discounts?

Yes! Save with annual billing Pay annually and get discounted rates

One simple payment for the entire year
Lock in your rate for 12 months
Significant savings vs monthly

Technical Integration

API setup, SDKs, and implementation guidance

What programming languages are supported?

Sthan.io APIs are REST-based and work with any programming language:

JavaScript

Python

PHP

Ruby

Java

C# / .NET

Swift

Kotlin

Our APIs return JSON responses that are easy to parse in any language.

How fast is the API response time?

<100ms

Average Response

99.9%

Uptime SLA

Global

Edge Network

Our cloud infrastructure uses edge locations to ensure fast response times regardless of your users' location.

Can I use this with React, Vue, or Angular?

Yes! Works with all modern frameworks React, Vue, Angular, and more

React: Use with custom hooks and state management
Vue: Compatible with Vue 2, Vue 3, and Composition API
Angular: Works with Angular services and RxJS

Read Integration Guide

How do I handle API errors?

Sthan.io APIs return standard HTTP status codes:

Code	Meaning	Action
`200`	Success	Process the response
`400`	Bad Request	Check your request parameters
`401`	Unauthorized	Verify your API key
`429`	Rate Limited	Slow down requests or upgrade
`500`	Server Error	Retry with exponential backoff

What's the rate limit?

Free tier 10 requests per second
Paid plans Higher limits based on subscription level
Enterprise Custom rate limits available

For autocomplete, implement debouncing (300-500ms) to reduce API calls and improve UX.

Data & Coverage

Accuracy, updates, and supported regions

How accurate is the address data?

80%
Reduction in Failed Deliveries

Authoritative sources USPS for USA, India Post for India
Regular updates Datasets updated frequently
Multi-step validation Ensures deliverable addresses

Do you support ZIP+4 codes?

Yes! Full ZIP+4 support 9-digit precision for USA addresses

What is ZIP+4? Adds 4 digits to standard ZIP codes for more precise location data.

Example: 90210 90210-1234

More precise location data
Faster mail sorting
Reduced delivery errors
Required for postal discounts

How often is the data updated?

USA data Updated monthly with USPS changes
India data Updated regularly with India Post changes
New construction New addresses added as they become available

Security & Compliance

Data protection, privacy, and compliance information

Is my data secure?

TLS/SSL Encryption

Enterprise Security

API Key Protection

All API communications encrypted
No address data stored beyond processing
Enterprise-grade cloud infrastructure
Unique API keys with rotation capability

Are you GDPR compliant?

Yes, fully GDPR compliant We take privacy seriously

Data minimization - only process what's necessary
No unnecessary data retention
DPA available for enterprise customers
Support for data subject access requests

Read our full Privacy Policy for details.

Do you store the addresses I validate?

No permanent storage Your customers' data remains your data

Addresses processed in memory only
No persistent storage of address data
Usage metrics are aggregated and anonymized

What's your uptime guarantee?

99.9%
Uptime Target

Redundant infrastructure Multiple availability zones
Auto-scaling Handles traffic spikes automatically
Enterprise SLAs Custom guarantees available

Still have questions?

Our team is here to help. Get in touch and we'll respond within 24 hours.