
PostalDataPI
Smarty
Melissa Data Quality
Raindrop.io
Pinboard
Instapaper
Diigo
Tagpacker
start.me
Bookmark OS
My Mind
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.
PostalDataPI
Raindrop.ioBased on our record, Raindrop.io seems to be more popular. It has been mentiond 190 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.
I use Raindrop for this purpose: https://raindrop.io/ It doesn't scrape the article like Instapaper or Pocket, which I actually prefer since it keeps things simple and I can choose how I want to view the article. The only downside I've found so far is that URLs must be unique to each feed, so you can have multiple feeds but you can't put the same URL into multiple feeds. - Source: Hacker News / about 1 year ago
I moved to https://raindrop.io/. Imported all the Pocket stuff with no issues, free plan is enough for me. - Source: Hacker News / about 1 year ago
I personally use Raindrop.io [0]. I have used it for more than 3 years and it does it's job very well. [0] http://raindrop.io/. - Source: Hacker News / over 1 year ago
I have been using https://raindrop.io/ for this and find it quite useful. Never end up reading everything I save but it keeps my browser less chaotic and adding bookmarks from the browser extension and on iOS is quite seemless. - Source: Hacker News / over 1 year ago
You might be thinking of https://raindrop.io which is developed by a Kazakh developer? - Source: Hacker News / over 1 year ago
Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
Instapaper - Instapaper is a simple tool to save web pages for reading later.