Crypto Basics

6 Best Hardware Wallets for Safe Crypto Storage

Protect your crypto assets with the best hardware wallets of 2023. Learn about the best wallet options for safe and reliable cryptocurrency storage.
Marcus K
7 Minutes
MIN

Crypto investments have seen a meteoric rise over the years, and as more people join the blockchain revolution, the security of one's assets has become paramount.

Hardware wallets, often dubbed "cold storage", provide a secure method to keep digital assets safe from cyber threats and that’s why when it comes to securing your crypto assets, choosing the right hardware wallet is crucial.

In this post, we’ll explore the 6 best hardware wallets in 2023 for safe crypto storage, ensuring your digital investments are well-protected. 

What are Crypto Hardware Wallets?

Hardware wallets, commonly known as "cold wallets," are physical devices designed to securely store cryptocurrency private keys offline. These tools protect assets from online threats like hacks and malware since they keep private keys isolated from internet-connected devices.

To execute a transaction, users connect their hardware wallet to a device, sign the transaction offline, ensuring utmost security, and then broadcast it online. 

This method ensures the private keys remain inaccessible even if the connected device is compromised. As a result, hardware wallets are widely recognized as a top-tier security measure for crypto investors.

Things to Consider While Choosing Crypto Hardware Wallets

When selecting a crypto hardware wallet, several factors demand careful consideration. 

1. Security features are paramount; ensure the wallet provides offline storage and employs advanced cryptographic techniques. 

2. Evaluate its build quality—a sturdy construction can prevent physical tampering. User experience is crucial; the interface should be intuitive, with clear instructions and prompts. 

3. Consider the range of supported cryptocurrencies—a broad spectrum can future-proof your investment. 

4. Look into any associated software; it should offer seamless integration and regular updates. 

5. Lastly, community reviews and feedback can offer real-world insights into the device's reliability and performance. By balancing these factors, users can confidently choose a wallet tailored to their needs.

List of Top Hardware Wallets in 2023

As we navigate through 2023, an array of hardware wallets have emerged, each promising cutting-edge security and user-friendly interfaces. 

These compact devices have become the bulwark against cyber threats, ensuring that one's digital treasure remains impervious to vulnerabilities. 

But with an overwhelming number of options available, how does one discern the best from the rest? 

Here's a curated list of top hardware wallets this year, offering a blend of robust security measures, extensive cryptocurrency support, and seamless user experience, designed to cater to both novices and seasoned crypto enthusiasts.

1. Ledger Nano X

The Ledger Nano X is a widely recognized and respected hardware wallet. It offers robust security features and supports over a thousand cryptocurrencies, providing not just safety but also versatility.

Key Features:

  • Bluetooth functionality for easy connection to smartphone or computer.
  • Compact and portable design.
  • Backed up by a 24-word recovery phrase.

Why it stands out:

With its user-friendly interface and advanced security features, Ledger Nano X continues to be a popular choice for crypto enthusiasts.

Cost: $149 for Nano X (Check Latest Offers).

Cryptocurrencies supported: More than 5,500.

2. Trezor Model T

Trezor Model T is another top contender in the world of hardware wallets. It features a touchscreen interface and supports a broad range of cryptocurrencies.

Key Features:

  • Touchscreen interface for easier use.
  • Pin code and recovery seed for added security.
  • Open-source software.

Why it stands out:

Trezor Model T's open-source software and extensive crypto support make it an excellent choice for those wanting additional security and functionality.

Cost: $213 for Model T (Check Latest Offers).

Cryptocurrencies supported: More than 1,000.

3. Coldcard Wallet

Coldcard Wallet is a Bitcoin-only wallet known for its high-level security features, making it an ideal choice for Bitcoin investors.

Key Features:

  • Bitcoin-only wallet for dedicated investors.
  • Secure element for keeping private keys safe.
  • PIN and anti-phishing features.

Why it stands out:

If you are a dedicated Bitcoin investor, Coldcard’s Bitcoin-only focus and robust security features make it a top pick.

Cost: $157.94

Cryptocurrencies supported: Bitcoin-only wallet

4. KeepKey

KeepKey offers a straightforward user experience with essential security features, making it suitable for beginners in crypto investment.

Key Features:

  • Large screen for easy operation.
  • Simple interface, ideal for beginners.
  • Backup and recovery options.

Why it stands out:

KeepKey's simplicity and essential security features make it an ideal choice for those new to cryptocurrency.

Cost: $130.

Cryptocurrencies supported: More than 7,000.

5. SafePal S1

SafePal S1 combines affordability with security, making it a desirable choice for budget-conscious crypto investors.

Key Features:

  • Affordable without compromising security.
  • Mobile compatibility for easy transactions.
  • Multi-currency support.

Why it stands out:

For budget-conscious investors, SafePal S1 offers an affordable yet secure option for storing crypto.

Cost: $49.99 for basic hardware.

Cryptocurrencies supported: More than 30,000.

6. BitBox02

BitBox02 is a modern and streamlined hardware wallet offering high-quality security and ease of use.

Key Features:

Touch and OLED screen for easy navigation.

USB-C and A compatible.

Backup on microSD card.

Why it stands out:

BitBox02 offers modern features and a streamlined user experience for those wanting an up-to-date hardware wallet.

Cost: $149.

Cryptocurrencies supported: Around 1500.

Frequently Asked Questions

Q1. What's the difference between a hardware wallet and a software wallet?

A hardware wallet is a physical device that securely stores a user's private keys offline, while a software wallet is a digital application on a computer or smartphone that keeps keys typically online or in the device's memory.

Q2. How often should I update my hardware wallet's firmware?

Regularly updating the firmware ensures you benefit from the latest security patches and features. Always follow the manufacturer's recommendations and ensure updates come from official sources.

Q3. Can I store multiple cryptocurrencies on a single hardware wallet?

Yes, most modern hardware wallets support multiple cryptocurrencies. However, it's essential to check the supported coins list for your specific device model.

Q4. What happens if I lose my hardware wallet or it gets damaged?

If you've kept a backup of your recovery seed—a series of words given during the initial setup—you can restore your funds on a new device. Always store your recovery seed securely and offline.

Q5. Is it safe to buy a used hardware wallet?

It's generally recommended to purchase hardware wallets new and directly from the manufacturer or trusted retailers to prevent potential tampering.

Q6. How does a hardware wallet interface with blockchain networks if it's offline?

The wallet itself only signs transactions offline. To broadcast the transaction to the network, the signed transaction is sent through a connected device, ensuring private keys remain offline.

Q7. Are hardware wallets resistant to physical attacks?

Many modern hardware wallets come with tamper-proof features. However, physical security is always crucial. Ensure you store your device in a safe place, and always be wary of potential tampering if left unattended.

Q8. Can I use my hardware wallet with popular software wallets or exchanges?

Most renowned hardware wallets integrate with popular software wallets and exchange platforms, allowing users a seamless experience. Always check compatibility lists before making a purchase.

Conclusion

In 2023, these eight hardware wallets stand out for their unique features, security, and ease of use. Remember to consider your specific needs and requirements when choosing a hardware wallet for your crypto assets. 

With the options listed above, you can ensure the safety and security of your investments, keeping your crypto assets protected against unauthorized access and potential threats.

Remember, while technology provides tools for security, the best protection is always awareness and education. Ensure you're up-to-date with best practices and always double-check transactions and addresses. Your crypto assets are valuable, and they deserve the highest level of care and protection. 

Disclaimer

The information provided on this website does not constitute investment advice, financial advice, trading advice, or any other sort of advice and you should not treat any of the website's content as such.

Token Metrics does not recommend that any cryptocurrency should be bought, sold, or held by you. Do conduct your own due diligence and consult your financial advisor before making any investment decisions.

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Research

Why Crypto API Data Isn’t Cheap: Costs, Realities & Smart Solutions

Token Metrics Team
6
MIN

As blockchain and crypto adoption surges, the demand for fast, reliable programmatic access to market and on-chain data has exploded. Developers, analysts, and startups rely extensively on crypto APIs to power apps, dashboards, and even AI-driven agents. Yet, many quickly realize: rich crypto API access can be surprisingly expensive. Why is this the case? What are the actual drivers of cost, and how can organizations optimize their API usage without sacrificing performance?

What Makes Crypto API Calls Costly?

Unlike traditional financial APIs, crypto APIs must handle large, decentralized datasets in real-time. The process of collecting, validating, enriching, and delivering this data to users is resource-heavy. Here’s why:

  • On-Chain Data Volume: Blockchains, especially giants like Ethereum, generate massive volumes of transactional data every second. Extracting relevant information—blocks, transactions, token transfers—requires continuous syncing, substantial compute power, and scalable storage.
  • Real-Time Demands: Market participants expect split-second access to price feeds and trading signals. This level of freshness necessitates robust server infrastructure and redundancy, both of which drive up operational costs for API providers.
  • API Rate Limits: To control demand and maintain stability, providers often limit free or basic tier calls. Higher usage tiers or premium data (such as historical, on-chain analytics, or low-latency endpoints) incur greater costs.
  • Security & Uptime: DDoS protection, API key management, and high-availability architectures are not trivial to develop or maintain. Reliable APIs also need to manage constant upgrades as networks evolve.

How Do Crypto API Pricing Models Work?

Crypto API providers use a range of models to manage infrastructure costs while scaling access:

  1. Freemium: Limited requests per month for free, with charges for higher usage, more endpoints, or additional features.
  2. Tiered Subscriptions: Packages based on maximum monthly API calls, unique endpoints, or support level.
  3. Pay-As-You-Go: Billing only for what’s consumed. This is common for high-frequency or enterprise clients needing flexibility.
  4. Enterprise Licensing: Flat annual fees for unlimited or very high-volume access, often paired with service-level agreements and dedicated support channels.

Ultimately, high-usage scenarios—like building real-time dashboards, AI analytics bots, or data aggregation platforms—will encounter notable costs, especially if they require both historical and live-chain data.

Balancing Performance with Cost-Efficiency

For many teams, efficiency isn't just about reducing API spend—it's about avoiding bottlenecks that can slow user experience or data integrity. Key trade-offs to consider:

  • Data Granularity: Do you need tick-by-tick price updates or is hourly resolution sufficient? Finer granularity means more calls and more costs.
  • Batch Requests: Some APIs support aggregating multiple queries into a single call, reducing overhead.
  • WebSockets vs. REST: Persistent connections (WebSockets) can deliver streaming updates more efficiently than repeated polling via REST calls.
  • Selective Endpoint Use: Only request what’s needed for your specific feature or user story, trimming unnecessary API consumption.
  • Caching & Throttling: Intelligent local caching and request throttling can dramatically cut your API bill and preserve provider bandwidth.

Practical Tips for Developers: Optimizing Crypto API Usage

To build scalable, cost-effective apps, dev teams can adopt several best practices:

  • Audit API usage patterns regularly. Identify redundant or duplicate calls.
  • Set clear API rate limits in code—as a safeguard against accidental overages.
  • Use built-in API analytics to monitor consumption and plan for capacity based on peak vs. average demand.
  • Explore multi-provider strategies. Balancing calls among a mix of APIs can de-risk single-provider outages and, in some cases, optimize pricing.
  • Establish automated alerts for quota limits or unusual spikes in usage to avoid service disruptions.
  • Consider using AI to predict traffic or data needs, pre-fetching only essential info when likely to be needed.

Many modern crypto analytics platforms, such as Token Metrics, also offer intelligent API solutions and reporting to support these optimization efforts.

The evolving crypto ecosystem is pushing both infrastructure and cost models. Emerging trends include:

  • AI-Powered Data Extraction: Companies are leveraging AI to parse, clean, and classify blockchain data more efficiently, reducing operational overhead.
  • Decentralized Data Networks: Platforms aggregating data from decentralized sources (oracles, peer nodes) may offer lower-cost and more resilient alternatives.
  • Dynamic Pricing: Expect APIs to increasingly adopt demand-driven pricing, scaling costs with market volatility or network congestion.
  • Better Developer Tooling: As the sector matures, expect even more robust SDKs, flexibility in integration, and user-friendly analytics for tracking both usage and billing.

While API costs will likely remain a factor in crypto development budgets, ongoing innovation is opening new opportunities to discover value and build smarter.

Build Smarter Crypto Apps & AI Agents with Token Metrics

Token Metrics provides real-time prices, trading signals, and on-chain insights all from one powerful API. Grab a Free API Key

Why are crypto API calls so expensive compared to other APIs?

Crypto APIs often handle vast, rapidly updating blockchain datasets. The requirements for real-time data parsing, high uptime, and managing decentralized sources drive infrastructure and operational costs significantly above traditional APIs.

How can developers reduce their crypto API costs?

Optimizing call frequency, implementing data caching, batching requests, and leveraging efficient endpoints can substantially cut usage and associated expenses. Monitoring consumption and exploring competitive providers also helps control costs.

Are there any free or affordable crypto APIs available?

Many providers, including Token Metrics, offer limited free tiers with restrictions on call volume or accessible endpoints. These plans are suitable for prototyping and testing, but scaling up typically requires moving to paid or subscription models.

What risks exist if you exceed API call limits?

Users may face temporary suspension, degraded performance, unexpected charges, or total loss of access. It's best practice to monitor usage and set up automated safeguards to avoid exceeding quotas.

How does Token Metrics' API stand out for crypto developers?

Token Metrics API combines real-time pricing, trading signals, and sophisticated on-chain analytics through a single, streamlined interface. Developers can integrate actionable insights with minimal overhead and flexible pricing options.

Disclaimer

This blog post is for informational and educational purposes only. It does not constitute investment advice, trading recommendations, or an offer to buy or sell any crypto asset. Always conduct your own research and consult a qualified professional before making data integration or financial decisions.

Research

Top Free APIs for Reliable Crypto Statistics: A Developer’s Guide

Token Metrics Team
7
MIN

Whether you’re a crypto enthusiast building a portfolio tracker, a data scientist enhancing your research with blockchain statistics, or a developer powering an AI agent with on-chain data, the right API can unlock game-changing insights without hefty costs. As access to transparent crypto data becomes increasingly important, many turn to free APIs to gather reliable stats on digital assets—yet navigating the options can be daunting. In this guide, we break down some of the best free APIs for crypto statistics, what to consider when choosing one, and how developers leverage these tools for research, analytics, and building smarter applications.

Understanding Crypto APIs and Why They Matter

A crypto API (Application Programming Interface) serves as a bridge between live blockchain data and your application or research workflow. These interfaces allow you to fetch real-time prices, historical charts, market capitalization, trading volumes, on-chain metrics, and sometimes deep project statistics. Unlike manual data collection, APIs automate the process, saving vast amounts of time and reducing human error. As web and AI applications increasingly rely on real-time digital asset data, choosing trustworthy and feature-rich APIs is critical for accuracy and efficiency.

  • Real-time stats: APIs enable on-demand access to fast-moving market data across hundreds or thousands of tokens, exchanges, and blockchains.
  • Historical analytics: Developers and analysts can retrieve time-series data for backtesting or portfolio analysis.
  • On-chain insights: Some APIs focus on network activity, token holders, or smart contract interactions—critical for blockchain research and AI models.

Best Free Crypto APIs for Stats: Comparing Top Choices

Not all free APIs are equal. Here are some reputable platforms that provide complimentary tiers for accessing crypto stats, with a brief overview of their strengths:

  1. CoinGecko API: Widely used for its open and generous free tier, CoinGecko offers real-time prices, historical data, market cap, volume, and metadata for thousands of coins. Its robust documentation and community support make integration straightforward for beginners and pros.
  2. CoinMarketCap API: Backed by a vast database, CoinMarketCap delivers real-time and historical market data for tracked assets, with basic statistics available on its free plan. Request limits are lower than some competitors, but it’s useful for basic queries.
  3. CryptoCompare API: Provides aggregated price feeds, exchange data, coin ratings, and social sentiment—great for broad coverage. Its free plan comes with limited calls and fewer custom features versus paid tiers.
  4. Blockchain.com Data API: Focused on Bitcoin network metrics (hash rate, block details, raw transactions), this API is perfect for on-chain analytics, albeit limited to BTC.
  5. Token Metrics API: For developers wanting to go beyond standard stats, the Token Metrics API offers a free tier for real-time prices, trading signals, AI-powered analytics, and on-chain data in a single endpoint. It’s designed for advanced research and integration with AI agents.
  6. Messari API: Delivers in-depth fundamental data, project profiles, and select statistics via its free tier. Messari’s API is a favorite for those seeking fundamental, non-price metrics.
  7. Glassnode API (Community Tier): Excellent for network analytics and on-chain visualization—limited to select metrics but highly useful for technical research.

Each API varies in terms of available endpoints, usage limits, latency, and scope. For many projects, especially AI-driven tools and bots, evaluating these criteria is just as important as price.

Key Criteria: How to Evaluate a Free Crypto Statistics API

Before selecting an API, developers and data analysts should apply a systematic framework to ensure the tool matches their use case. Consider:

  • Data coverage: Does the API offer all needed endpoints—prices, volumes, on-chain stats, project metadata?
  • Reliability: Look for uptime records, user reviews, and community trust. Frequent outages or unmaintained APIs might undermine your project.
  • Rate limits: Free plans often cap daily or minute-by-minute requests. Ensure these align with your data frequency needs (e.g., real-time vs. periodic updates).
  • Data freshness: Latency matters. Markets move fast, so choose APIs that minimize lag in delivering updates.
  • Documentation and support: Good docs speed integration and reduce errors. Community forums or Discord support are big pluses for troubleshooting.
  • Special features: Some APIs offer unique endpoints for social sentiment, AI signals, on-chain analytics, or cross-chain support.

Researching these factors upfront will help avoid integration headaches later.

Practical Ways to Use Free Crypto Stat APIs

Free APIs empower a variety of users beyond developers—from quant researchers to hobbyists, and even AI tool builders. Some common applications include:

  • Portfolio analytics tools: Fetch live balances and historical prices for asset management dashboards.
  • Market research bots: Build automated scrapers or AI agents that track trending assets and network activity.
  • Academic research: Gather historical, social, and on-chain datasets for blockchain or financial research papers.
  • On-chain anomaly detection: Monitor large transactions and changes in network metrics to surface suspicious or significant activity.
  • Trading signal development: Test quantitative strategies using historical stat APIs—always in a research context (avoid investment advice).

Free APIs are especially valuable for prototyping or academic work, allowing experimentation without financial barriers.

Limitations and Considerations for Free Crypto APIs

While many free APIs are robust, it’s vital to recognize their limits:

  • Restricted features: Advanced endpoints (like deep on-chain analytics or AI predictions) may require paid access or have throttled response times on free plans.
  • Rate restrictions: Heavy use—such as running a live trading bot—may exceed free limits, resulting in failed requests or delayed data.
  • Data accuracy: Verify data sources, as inconsistencies can occur in community-maintained APIs.
  • Longevity and support: Free APIs may change terms or sunset endpoints with little warning; it’s smart to plan for redundancy or migrate to paid tiers if scaling a critical project.

Always monitor usage and test with sample queries before deeply embedding an API into your application stack.

Build Smarter Crypto Apps & AI Agents with Token Metrics

Token Metrics provides real-time prices, trading signals, and on-chain insights all from one powerful API. Grab a Free API Key

Frequently Asked Questions

What can I do with a free crypto stats API?

Free APIs allow you to retrieve real-time prices, historical price charts, market capitalization, volume stats, and sometimes deep on-chain or social data. Common use cases include research dashboards, portfolio tracking, market research bots, and academic studies.

How does free API data differ from paid API data?

Paid APIs often offer higher request limits, lower latency, access to premium or advanced endpoints (such as AI signals or on-chain analytics), and priority support. Free APIs typically have limited features but are sufficient for basic research and prototyping.

What are the main limitations of free crypto APIs?

Key limitations include lower request limits, restricted access to certain data types, potential delays in data refresh, and fewer customization options. Some free APIs may also reduce support or sunset features without notice.

How do I find the best API for my crypto project?

Assess your needs: data types, frequency, project scale, and supported tokens or blockchains. Compare APIs on criteria like data coverage, uptime, rate limits, and ease of integration. Experiment with sample calls and consult developer communities for reviews.

Always review API terms of use and attribution requirements. Some APIs restrict redistribution or commercial use on free plans. Ensure compliance, especially if embedding data into public or monetized projects.

Disclaimer

This article is for informational and educational purposes only. It does not constitute investment advice, endorsement, or a recommendation. Always do your own due diligence and consult a professional before using financial or blockchain data in critical applications.

Research

Choosing the Best API for Institutional Crypto Analytics

Token Metrics Team
6
MIN

In today’s rapidly evolving digital asset landscape, institutions require access to secure, fast, and reliable analytics. The right application programming interface (API) can determine how effectively asset managers, risk teams, and research desks process vast volumes of crypto data. While hundreds of APIs claim to deliver comprehensive analytics, only a select few offer the depth, infrastructure, and granularity needed for institutional decision-making. So, how do you identify which API is best for institutional-level crypto analytics?

Key Institutional Requirements for Crypto Analytics APIs

Institutions face unique analytics needs compared to retail participants. Core requirements cut across:


     

     

     

     

     

     


The ideal API brings together standardized endpoints, dedicated support, and tooling to enable advanced research, risk, and portfolio management functions.

Overview of Leading APIs for Institutional Crypto Analytics

Let’s explore some of the leading contenders in the market based on institutional needs:


     

     

     

     

     

     


While each API has unique strengths, the best fit depends on the institution’s specific research and operational objectives.

Framework for Comparing Crypto Analytics APIs

Given the diversity of provider offerings, institutions benefit from a structured evaluation approach:


     

     

     

     

     

     


Using this checklist, decision makers can align their analytics strategy and tooling to their mandate—be it portfolio monitoring, alpha research, or risk mitigation.

AI’s Impact on Institutional Crypto Analytics APIs

Recent advances in AI and machine learning have transformed how institutions derive insights from crypto markets:


     

     

     


For institutional users, the fusion of traditional data feeds with AI-driven signals accelerates research cycles, strengthens automation, and supports more granular risk monitoring.

Practical Steps for Integrating Institutional Crypto Analytics APIs

Once the API shortlist is narrowed, institutions should:


     

     

     

     

     


Thoughtful integration enables institutions to maximize analytical rigor, improve operational efficiency, and streamline research and trading workflows.

Build Smarter Crypto Apps & AI Agents with Token Metrics

Token Metrics provides real-time prices, trading signals, and on-chain insights all from one powerful API. Grab a Free API Key

FAQ: Institutional Crypto Analytics APIs

What distinguishes a top-tier crypto analytics API for institutions?

Top APIs offer comprehensive high-frequency data, robust uptime, on-chain analytics, and customizable endpoints. They support integration with institutional systems and provide enterprise-level security and support.

Why are on-chain analytics important for institutional investors?

On-chain analytics reveal trends in wallet activity, fund flows, and network health. These insights can help with compliance monitoring, risk assessment, and understanding macro shifts in crypto markets.

How does AI enhance the value of a crypto analytics API?

AI-driven APIs can automate data aggregation, deliver predictive signals, analyze sentiment, and help institutions uncover hidden patterns—enhancing research speed and accuracy.

What sets the Token Metrics API apart from competitors?

The Token Metrics API blends multi-source price, on-chain, and sentiment data with AI-powered analytics for actionable signals, supporting sophisticated institutional workflows.

What challenges might institutions face when integrating crypto analytics APIs?

Key challenges may include harmonizing data formats, managing API limits, ensuring security compliance, and aligning external feeds with internal data pipelines and tools.

Disclaimer

This blog is for informational and educational purposes only. It does not constitute financial, investment, or legal advice. No warranties or endorsements of any API provider, platform, or service, including Token Metrics, are implied. Always conduct your own due diligence before integrating any data tool or service.

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