PostGrid
Direct mail and address verification APIs for offline communications
About PostGrid
PostGrid is an offline communication platform offering REST APIs for direct mail automation (letters, postcards, checks) and address verification across 245+ countries. It helps businesses in healthcare, insurance, finance, real estate, and e-commerce send personalized physical mail at scale and validate addresses with CASS- and SERP-certified accuracy.
Pros & Cons
Pros
- Single platform for both direct mail and address verification
- International coverage across 245+ countries
- CASS and SERP certified for compliance-sensitive industries
- HIPAA-compliant workflows suited to healthcare and insurance
- Strong API documentation with Zapier and webhook support
- 2-day SLA for print and mail processing
Cons
- Pricing not transparent on the website; requires sales contact for real numbers
- Per-piece overages can add up for unpredictable mailing volumes
- Primarily API-first; non-technical teams may need engineering help
- Some advanced features locked behind subscription or enterprise tiers
Key Features
Print & Mail API
Automate sending letters, postcards, checks, and certified mail through a REST API with 2-day SLA.
Address Verification API
CASS- and SERP-certified verification, standardization, and parsing for US, Canada, UK, Australia, and 245+ countries.
Address Autocomplete
Real-time address autocompletion to reduce form errors and improve checkout conversion.
Bulk Address Verification
Verify up to 200,000 addresses at once via batch upload or API.
HIPAA Compliance
HIPAA-compliant mailing workflows for healthcare and insurance use cases.
Personalization & Templates
Variable data printing with HTML templates and merge variables for fully personalized mail pieces.
Tracking & Webhooks
Track mail status from rendering through USPS delivery with webhook notifications.
Zapier Integration
Connect with 1,600+ apps through Zapier without writing code.
Pricing
- 100 test requests
- No credit card required
- Full API access in test mode
- Documentation and sandbox
- No monthly commitment
- Flat per-piece pricing (print + standard postage)
- All mail products available
- Up to 500 mailings/month before overages
- Fixed monthly platform fee
- Discounted per-piece rates
- Higher volume allowances
- Priority support
- Annual contract with volume discounts
- Dedicated account manager
- Custom SLAs
- HIPAA BAA available
- SSO and advanced security
Best For
Automated Customer Communications
Trigger physical letters and postcards from CRM events for onboarding, renewals, or win-back campaigns.
Healthcare and Insurance Notices
Send HIPAA-compliant patient notices, EOBs, and policy documents at scale via API.
Address Validation at Checkout
Validate and autocomplete customer addresses on e-commerce checkout to cut failed deliveries.
Bulk Address Cleansing
Cleanse and standardize large customer databases before mailing campaigns or data migrations.
Check Issuance
Programmatically print and mail business checks for payroll, vendor payments, or refunds.
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