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

Koinly
CoinTracking
Accointing
CoinLedger
TokenTax
Blockpit
Coinpanda
The most trusted cryptocurrency tax and portfolio manager

Which is more popular?
Based on our record, CoinTracker seems to be more popular. It has been mentioned 116 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | zip-codes.com | cointracker.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| 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...
No description of CoinTracker yet.
What each product offers, as listed by its team.

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
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How to file your cryptocurrency & bitcoin taxes with CoinTracker and TurboTax
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External articles and on-site reviews we used to compare the two products.

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Similar to CyrptoTrader, CoinTracker lets you share the report with tax professionals. Subscription plans are based on transactions, and higher-level plans come with DeFi support as well.
I have been using cointracker in 2021. Suddenly, six days ago, the system stopped posting my transactions. I was on the "free" program, and I intended to buy a program for tax purposes. After this problem. I will go...
Recommendations tracked on public social media and blogs since March 2021.

Tracking ZIP Code API since May 2026.
Thanks, but the AI is useless and when I get customer support they just ignore me or send a link to some page. This has been my experience with cointracker.io I already started to move everything to Koinly. Thanks though... Source: over 3 years ago
Have you tried cointracker.io or koinly.io? I don't know if they support Gemini. Crypto exchanges are weird with tax forms, doesn't make sense to me either but I think most of them only provide 1099misc. I'm probably not going to file... Source: over 3 years ago
That email was only used for cointracker.io no where in the history of the internet has that email been used anywhere else. If they got that email, they got others. Source: over 3 years ago
When comparing ZIP Code API and CoinTracker, you can also consider the following products.

Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Koinly is the easiest way to monitor your crypto activity & file your taxes.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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All Coins, all Analyzes, all Calculations, all Charts and all Prices for Bitcoin, Litecoin...
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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A crypto tax tool with a portfolio tracking platform
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