
Postio.co.uk
Ideal postcodes
Fetchify
Smarty
Data8 UK
ZIP Code API
Data8 UK PredictiveAddress
The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

zsh
GNU Bourne Again SHell
Starship (Shell Prompt)
PowerShell Plus
CentminMod
iTerm2
KornShell
The friendly interactive shell.
Which is more popular?
Based on our record, fish shell seems to be more popular. It has been mentioned 147 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | postaldatapi.com | fishshell.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates,...
No description of fish shell yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Fish Shell is recommended for developers and system administrators looking for an intuitive and powerful command-line shell. It is particularly suitable for users who prefer minimal configuration and appreciate features like autosuggestions and syntax highlighting straight out of the box.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
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this tank is not overstocked | Fish Tank Review Ep. 1
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostalDataPI and fish shell. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking PostalDataPI since Apr 2026.
I use the Fish shell on my Mac, which is much better than bash in many ways. If you’re using fish, you’ll need to use a slightly different command to handle piping post ID’s to the delete command properly. - Source: dev.to / 2 days ago
Once you have those you’ll need to add them to your command line profile so that they’re available to node’s process.env globals. I use Fish CLI, so for me this looks like this:. - Source: dev.to / 2 days ago
That’s a mouthful; it’s best to simplify with a custom CLI function. I use Fish shell, so I’ve created a helpful fish function to make it better:. - Source: dev.to / 2 days ago
When comparing PostalDataPI and fish shell, you can also consider the following products.

Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.
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The Z shell (Zsh) is a Unix shell that can be used as an interactive login shell and as a powerful command interpreter for shell scripting.
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We help businesses improve UX and data quality with a cutting edge address validation service.
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Bash is the shell, or command language interpreter, that will appear in the GNU operating system.
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Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.
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Starship is the minimal, blazing fast, and extremely customizable prompt for any shell! Shows the information you need, while staying sleek and minimal. Quick installation available for Bash, Fish, ZSH, Ion, and Powershell.
Compare Starship (Shell Prompt) to PostalDataPI or fish shell: