How can we help you?

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 with verified, standardized addresses
• 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.

Sthan.io currently provides comprehensive address data coverage for:

Interested in coverage for other regions? Contact us.

Sthan.io offers flexible, affordable pricing:

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

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

• Monthly plans: access continues until end of current billing cycle; no refund issued
• Annual plans: prorated refund for remaining unused months; access continues through the end of the current billing month
• Original payment processing fees are non-refundable and will be deducted from the refund amount
• Cancel directly from your dashboard

• API returns 429 status When you hit your limit, the API returns 429 Too Many Requests with a Retry-After header
• Dashboard usage tracking Monitor your API usage from your dashboard
• Easy upgrades Upgrade to a higher plan anytime from your dashboard

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

Sthan.io APIs are REST-based and work with any programming language that can make HTTP requests. We provide code examples for:

Since our APIs use standard HTTPS and return JSON, they work equally well with Swift, Kotlin, Rust, or any other language.

Response times vary by product:

Our infrastructure is designed for high availability with redundant systems to minimize downtime.

• 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

Sthan.io APIs return standard HTTP status codes:

Rate limits vary by plan and product. Check your dashboard or our pricing page for your plan's specific limits.

• Authoritative data sources USA address data aligned with USPS postal standards. India data sourced from authoritative government and postal datasets.
• Regular updates Datasets refreshed to reflect postal changes, new addresses, and corrections
• Multi-step validation Addresses checked against multiple data points to ensure deliverability

Accuracy and coverage varies by product and region. See individual product pages for specifics.

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

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

• USA data Updated regularly to reflect USPS postal changes
• India data Updated periodically to include new addresses and corrections
• New construction New addresses incorporated as authoritative sources publish them

• Encrypted communications — All API requests use TLS/SSL encryption in transit
• Token-based authentication — Secure JWT tokens with configurable expiration protect your API access
• Request monitoring — We log request metadata (IP address, timestamp, endpoint, response code) for rate limiting, abuse prevention, billing, and support. We do not sell or share this data with third parties.
• Address data handling — Address inputs are processed to generate API responses. We do not use your address data for marketing, profiling, or resale.

• Data minimization — We only process data necessary to fulfill your API request
• No data resale — We never sell or share your data with third parties
• Transparent logging — Request metadata is retained for security, billing, and support purposes
• Privacy inquiries — For questions about your data or privacy concerns, contact us at [email protected]

Read our full Privacy Policy for details.

• Address processing — Address inputs are processed in real-time to generate API responses. We do not build databases from your submitted addresses or use them beyond fulfilling your request.
• Request logging — Like all API services, we log request metadata (timestamps, IP addresses, endpoints called, response codes) for billing, rate limiting, security monitoring, and technical support.
• Your data ownership — The addresses you submit and the results you receive are yours. We do not claim ownership of your input or output data.
• No data resale — We never sell, share, or monetize your address data or API usage patterns to third parties.

• Redundant systems Critical components have backup systems to minimize single points of failure
• Proactive maintenance We regularly review system health and apply updates to maintain reliability
• Regular maintenance Scheduled during low-traffic windows to minimize disruption

For enterprise customers with specific uptime requirements, contact us to discuss your needs.