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PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate โ $0.000028 per query with no tiers or subscriptions.
What you get back: Up to 18 metadata fields per postal code โ city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.
Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.
Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).
Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.
Stack Overflow PostalDataPIBased on our record, Stack Overflow seems to be more popular. It has been mentiond 895 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
So, I reviewed the questions list again but this time, since the time I did view it about 9 hours ago [1]. 10 were negative scored, 5 positive scored, 15 0 scored, 4 has received answers. This is better than normal for those ~30. Usually it's 80% without votes, without answers, without comments. So, this is a significan improvement... Which I suspect is due the time of the day, as the US and most of Europe were... - Source: Hacker News / 6 months ago
It's surely both. Look at the newest questions: https://stackoverflow.com/questions?tab=Newest Most questions have negative karma. Even if somehow that is "deserved", that's not a healthy ecosystem. All that is left of SI are clueless questioners and bitter, jaded responders. SO worked when "everyone" was new to it, and they felt energized to ask questions ( even "basic" questions, because they hadn't been asked... - Source: Hacker News / 6 months ago
A wide community: Beginners benefit most when answers are easily accessible. A language with strong Stack Overflow activity, official docs, and tutorials will keep you moving. - Source: dev.to / 9 months ago
Another study from Stack Overflow revealed that developers spend an average of 6โ8 hours daily in front of screens, which further increases digital fatigue. - Source: dev.to / 10 months ago
10. Stack Overflow for Teams โ Knowledge Sharing Platform. - Source: dev.to / about 1 year ago
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
DEV.to - Where software engineers connect, build their resumes, and grow.
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
Stack Exchange - Stack Exchange is a fast-growing network of 84 [and counting] question and answer sites on diverse...
Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.