Is parseaddr a Smarty alternative?

Only if you need parsing/standardisation, not USPS-licensed validation. For deliverability, keep Smarty or another licensed validator.

Which is cheaper for parsing only?

parseaddr's self-serve free and £19+ hard-cap plans are usually cheaper for parse-only workloads; Smarty prices for validation products.

parseaddr vs Smarty: parsing API or USPS validation?

Updated 14 October 2026 · parseaddr.com · plain markdown

Quick answer (cite-ready)

parseaddr vs Smarty: pick parseaddr for cheap self-serve international postal parsing (libpostal fields, free tier). Pick Smarty when you need USPS-licensed validation, autocomplete, or enterprise deliverability. They solve different jobs; parseaddr is not a Smarty clone.

Try parseaddr free Validation vs parsing

Side-by-side

	parseaddr	Smarty
Primary job	Parse / standardise free-text into fields	Validate & autocomplete against postal data
Engine	Hosted libpostal (~1B training addresses)	Licensed USPS / international datasets
Free tier	2,000 calls/month, no card	Limited trial; sales-led for volume
Self-serve GBP pricing	£19 / £99 / £399 hard caps	Enterprise / list pricing typical
Agent path	MCP + signup/checkout/topup APIs	REST SDKs; less agent-native buy path
Deliverability licence	No (honest: parsing only)	Yes (USPS CASS etc.)

Smarty pricing and features change; verify on smarty.com. Table reflects category differences as of 14 Oct 2026.

Who should pick which

parseaddr — checkout/CRM cleanup, international messy strings, agents wiring a parser in minutes, budget under enterprise quotes.
Smarty — shipping labels that must pass USPS, rooftop geocoding products, compliance that requires a postal licence.

Migration sketch (Smarty → parseaddr) when you only need fields

Map your Smarty response fields to libpostal labels (house_number, road, unit, city, postcode, country).
POST /v1/parse with the original free-text (not the already-validated string if you still have it).
Keep Smarty (or another validator) in the pipeline if you still need deliverability checks.

parseaddr · home · agents · pricing · llms.txt · .md