Keep databases accurate and reformat Australian and international addresses according to local postal standards.
Trusted by 1000+ Customers
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Enter an Australian or global address now to confirm its accuracy and deliverability.
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output Address result
International Address Verification API With Developer-Friendly Integrations
Set up reliable global address validation in minutes.
With our APIs you can:
Core Capabilities
A smarter way to collect, cleanse, and maintain global address data.
Verify International Addresses
Cross-reference global address inputs against official databases like Australia Post to flag invalid entries.
Cross-reference global address inputs against official databases like Australia Post to flag invalid entries.
Standardise by Country
Meet the address requirements of local postal authorities to comply with unique international formats.
Meet the address requirements of local postal authorities to comply with unique international formats.
Maintain Data Hygiene
Clean up incomplete, duplicate, or bad records in bulk to keep databases accurate and up to date.
Clean up incomplete, duplicate, or bad records in bulk to keep databases accurate and up to date.
How to Use PostGrid’s API
Connect the API to existing systems and get teams up and running quickly.
01
Sign Up
Register on the PostGrid dashboard and confirm your email to activate your account.
02
Authenticate
Get your API keys in the Developer section, using the Test keys for development and the Live keys for production.
03
Configure
Include your x-api-key in the HTTP header of your requests to authenticate and interact with the API
04
Integrate
Select either a RESTful API integration for personalised workflows or use a pre-built JavaScript snippet for web-based autocompletion.
05
Verify
Make a POST request to the /verification endpoint, either with a freeform string or a structured JSON body containing address details.
06
Enhance
Use query parameters like includeDetails=true for deep metadata or geocode=true to append latitude and longitude information.
07
Batch
Validate large datasets simultaneously with the /verifications/batch endpoint to maximise throughput.
08
Analyse
Check API responses’ status, such as Verified, Corrected, or Failed, to check the accuracy and deliverability of your data.
International Address Verification API Features
Built to manage high-volume address data without impacting deliveries, operations, or compliance.
- Authoritative Data Access: Cross-verify global addresses against Australia Post, Royal Mail, Canada Post, and USPS’s official databases for maximum data accuracy.
- Address Parsing: Convert poorly formatted global addresses to country-specific formats with PostGrid’s free-form address parsing capabilities.
- Advanced Address Autocomplete: Fast-track the checkout experience by offering up to 100 verified global address suggestions as users enter information.
- Bulk Verification: Upload CSV or XLS files to validate and standardise up to 1 million addresses in a single batch to save time and effort.
- Reverse Geocoding: Convert latitude and longitude coordinates into pre-formatted postal addresses to gather accurate location mapping data.
- Address Transliteration: Handle international characters to preserve the structure of local addresses regardless of script.
- Self-Hosted & On-Premise Deployment: Use existing servers or dedicated hardware to host the address verification solution for complete data privacy and high-capacity request limits.
- Census Data Enrichment: Append geographic, demographic, and political jurisdiction data directly to validated address records for superior spatial accuracy.
- Intelligent Duplicate Detection: Automatically identify and remove duplicate address records within massive datasets to improve CRM hygiene.
- Native Platform Embeds: Integrate global address verification and standardisation capabilities into enterprise architecture, including Salesforce, Stripe, Microsoft Dynamics 365, etc.
- Comprehensive Developer SDKs: Access pre-built software development kits for major programming environments to reduce the engineering hours required for deployment.
- AMAS Certified Solution: PostGrid’s API is certified by Australia Post’s Address Matching Approval System (AMAS), ensuring maximum address data accuracy.
Measurable Strategic Advantages
Turn raw international addresses into validated data to keep deliveries on track and stay compliant.
Reduce Return Mail
Capture validated addresses at the point of entry with address autocomplete to lower international returned shipments and churn.
Capture validated addresses at the point of entry with address autocomplete to lower international returned shipments and churn.
Cut Costs
Save overhead costs wasted on global postage, packaging, and manual labour by validating addresses in advance.
Save overhead costs wasted on global postage, packaging, and manual labour by validating addresses in advance.
Expand Globally
Support international expansion plans with support for 245+ countries and territories, script transliteration, and local formatting.
Support international expansion plans with support for 245+ countries and territories, script transliteration, and local formatting.
Mitigate Business Risks
Build an accurate address database to avoid failed deliveries, compliance fines, and unhappy customers.
Build an accurate address database to avoid failed deliveries, compliance fines, and unhappy customers.
Improve User Experience
Provide a low-friction checkout experience to customers by suggesting pre-validated, deliverable addresses.
Provide a low-friction checkout experience to customers by suggesting pre-validated, deliverable addresses.
Automate Data Remediation
Stop relying on error-prone manual data entry and use bulk/batch processing to save team hours of work.
Stop relying on error-prone manual data entry and use bulk/batch processing to save team hours of work.
The PostGrid Difference
A trustworthy partner to speed up operations and keep data clean.
- 99% Global Accuracy Rate
Guarantee precision by cross-referencing addresses against multiple official postal databases and credible sources. - Enterprise-Ready Solution
Verify up to one million addresses at once and use native integrations for enterprise-level scalability. - Flexible Pricing Plans
PostGrid offers flexible plan tiers for businesses to fit their unique needs without locked-in contracts or hidden charges.
Built for Compliance & Data Security
Perform every address check within a compliant, secure, and audited environment.
Global Data Privacy Standards
Full adherence to the Privacy Act 1988, the Australian Privacy Principles (APPs), ISO 27001, SOC 2 TYPE 2, and PCI DSS for the best data confidentiality.
Secure Cloud Infrastructure
PostGrid hosts its data on secure AWS servers to isolate and protect information from breaches and vulnerabilities.
Encrypted Data Transmissions
End-to-end data encryption for all user data with advanced TLS/SSL protocols and SSO (Single Sign-on).
Testimonials
With a 5-star rating on G2, PostGrid’s International Address Verification API is highly
appreciated by global businesses.
”The tool works well for both verifying new addresses and cleaning up old ones. It helps ensure our data is accurate and consistent, which is crucial for sending out reliable mail.
Zinnia CManager of Events”The system makes sure that every shipping address we get is valid. It checks everything from zip codes to apartment numbers, so we can confidently ship out our orders without worrying about failed deliveries.
Callum WDirector of Ops”The ability to handle both bulk and individual address checks is a big plus. It’s quick and effective whether we’re verifying a large list of addresses or just a single one.
Violetta KVP of Implementation
Integrates with your favourite tech stack & tools
Easily Improve your workflow and automate print & mail through seamless integration capabilities.
Frequently Asked Questions
How Does the Address Verification Solution Handle Complex Regional Layouts?
PostGrid’s International Address Verification API cross-references against multiple authoritative databases, such as Australia Post, Royal Mail, Canada Post, USPS, and more, to adapt to highly specific regional structures. It ensures all output addresses are according to the officially accepted formats.
Can Businesses Install the API Locally?
Yes, PostGrid provides a self-hosted solution. There’s some coding on the user’s part. Businesses can save the results to a database for future reference. Please contact the support team to get help with the installation process.
Which Languages are Supported by PostGrid?
PostGrid provides transliteration capabilities for addresses written in:
- Latin (e.g., English, Spanish, French, German, Portuguese)
- Cyrillic (e.g., Russian, Bulgarian, Serbian)
- Greek
- Arabic
- Hebrew
- Hangul (Korean)
- Han Characters (Simplified and Traditional Chinese)
- Katakana & Hiragana (Japanese)
- Devanagari (e.g., Hindi, Marathi, Nepali)
- Thai
- Tamil
- Georgian
- Bengali
- Armenian
Is It Possible to Verify International Addresses in Bulk With PostGrid?
Yes, PostGrid’s API can verify, standardise, and parse addresses in bulk and batch across 245+ countries and territories. Businesses only have to upload CSV or XLS files to start the process for up to one million addresses in a single batch.
Does PostGrid Provide Developer Support to Its Clients After API Integration?
Yes, PostGrid provides 24/7 support to its clients for troubleshooting and resolving queries. In fact, enterprise customers get a dedicated account manager for help.
Ready to Get Started?
Start transforming and automating your offline communications with PostGrid
