Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
Text2SQL.AI
AI2sql
TTSQL
Vanna AI
AskYourDatabase
EXASOL
Lila
Generate SQL queries using text
Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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TSQ
Txt2SQL
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|---|---|---|
| Website | zip-codes.com | txt2sql.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
Text2SQL generates optimized SQL queries based on plain text and custom database schema
What each product offers, as listed by its team.
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When comparing ZIP Code API and Txt2SQL, you can also consider the following products.

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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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✔️ With AI2sql, engineers and non-engineers can easily write efficient, error-free SQL queries without knowing SQL.✔️ Querying has never been easier.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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TTSQL turns text to SQL, natural language to SQL, and text to query prompts into secure SQL across major databases.
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