Research

Top Free APIs Every Developer Should Know in 2024

Discover the best free-to-use APIs for crypto, AI, and data apps. See which trusted APIs developers rely on for robust features, reliability, and easy integration.
Token Metrics Team
5
MIN

APIs are the silent workhorses powering today’s most innovative software. Whether you’re a crypto enthusiast automating portfolio analysis, or a web developer looking to enrich your app with real-time data, the right free API can supercharge your project—and your productivity. But with thousands out there, which free APIs truly stand out for reliability, ease of use, and breadth of features?

Why Free APIs Matter for Developers and Innovators

APIs—Application Programming Interfaces—allow applications to seamlessly interact, share insights, and build on each other's strengths. The best free-to-use APIs democratize access to powerful datasets, functionalities, and market signals. For crypto, AI, fintech, or simply creative digital projects, high-quality APIs can:

  • Accelerate product development with ready-made data and processing tools
  • Enable experiments in new tech areas without initial investment
  • Foster community-driven innovation thanks to open documentation and easy onboarding

However, not all free APIs are created equal. Some offer limited usage tiers, outdated data, or spotty reliability. That’s why informed selection is crucial, especially for mission-critical apps.

Top Free APIs for Cryptocurrency and Blockchain Projects

The crypto landscape thrives on transparency and timely data. For enthusiasts building bots, dashboards, or research tools, these free APIs consistently earn praise:

  • CoinGecko API: Delivers comprehensive token prices, volumes, and market data. Free tier includes generous rate limits and supports thousands of assets.
  • CoinMarketCap Public API: Offers price feeds and historical data for cryptocurrencies, ideal for analysts and monitoring tools.
  • Etherscan API: The go-to source for Ethereum blockchain explorers, enabling developers to fetch address balances, smart contract source, and token transactions for free.
  • Glassnode API (Free Tier): On-chain metrics and indicators, including supply activity and network health, are freely accessible for non-commercial use.

These APIs are often foundational building blocks for portfolio trackers, on-chain analytics, and even education platforms. Crucially, they’re maintained, well-documented, and support broad application ranges without requiring payment—or personal information—at the entry level.

Best Free APIs Across Data, AI, and Web Development

If your project stretches beyond crypto, the open web is full of powerful (yet freely accessible) APIs for various domains:

  1. OpenWeatherMap API: Real-time and forecast weather data for any global location. Great for travel, logistics, and even DeFi insurance products.
  2. NewsAPI: Aggregates global headlines and breaking news. Many developers use it for sentiment dashboards, trend-following, or daily newsletters.
  3. OpenAI API (trial/limited free tier): Enables natural language understanding, chatbots, and text processing. Developers can access some GPT models for experimentation on a free plan.
  4. RapidAPI Hub: A directory hosting hundreds of free-to-use APIs in every possible category—from sports to sentiment analysis. RapidAPI offers unified onboarding and monitoring.
  5. Public-APIs (GitHub Community List): An open-source, crowd-curated list of categorized free APIs, kept up to date for AI, datasets, image processing, and more.

These tools let you build everything from machine learning prototypes to hobbyist weather notifiers. Carefully review usage limits and (where relevant) data privacy arrangements as you scale your innovation.

How to Choose and Integrate Free APIs Securely

Not every free API is equally reliable or secure. Situations to consider include:

  • Data Accuracy and Uptime: Ensure the provider offers a clear SLA or uptime history, especially for finance or real-time apps.
  • Privacy: Favor APIs that don’t require sensitive personal data unless absolutely necessary.
  • API Limits and Scaling: Free tiers are often rate-limited. Consider future upgrades and monitor usage to avoid service interruptions.
  • Documentation and Community: Well-documented APIs, ideally with samples and open forums, accelerate integration and reduce confusion.

When integrating, secure your keys in environment variables, use HTTPS endpoints, and avoid exposing credentials in public sources. Always plan for error handling and fail-safes.

The Growing Role of Free APIs in AI and Analytics

The explosion of AI-generated insights and predictive analytics owes much to accessible APIs. With free endpoints for data labeling, model inference, and sentiment tracking, even small development teams can launch powerful, AI-enhanced products. Projects like Hugging Face’s free models hub or the OpenAI playground democratize once-complex capabilities, unlocking new digital frontiers for research and public good.

For crypto analysis, AI-backed APIs—like those from Token Metrics—combine quantitative techniques and machine learning to highlight actionable trends and on-chain activity. As free API ecosystems expand, expect an even richer toolbox for developers at every skill level.

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

What is an API and why are they essential in crypto or AI?

APIs let different software systems communicate and share data or services. In crypto, APIs deliver live price data, transaction histories, and on-chain analytics. In AI, APIs allow access to model inference, data labeling, and natural language processing, lowering barriers for developers and researchers.

Are free APIs truly reliable for production use?

Many free APIs maintain high uptime and data accuracy, especially those from reputable organizations. However, they may have stricter rate limits, fewer support options, or evolving terms. For mission-critical operations, always implement redundancy and review official service level commitments.

Which are the best free APIs for cryptocurrency analysis?

Popular options include CoinGecko, CoinMarketCap, and Etherscan for price and blockchain data. For AI-driven insights, platforms like Token Metrics provide actionable intelligence with robust free tiers.

How do I keep my API keys and data secure?

Never hardcode keys in public repos or client-side code. Use secure storage (environment variables or vaults), enforce HTTPS, rotate keys regularly, and monitor API access logs to identify anomalies.

What should I check before integrating any free API?

Review documentation, data freshness, rate limits, provider reputation, privacy compliance, and supported SDKs. Test endpoints in your dev environment and plan for graceful error handling to ensure resilience.

Disclaimer

This article is for informational purposes only and does not constitute financial, investment, or legal advice. Always perform due diligence when evaluating APIs, tools, or digital assets. No endorsement is implied. Third-party API providers may change terms at any time; verify details before production use.

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AI Agents in Minutes, Not Months
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Token Metrics Team
Token Metrics Team

Recent Posts

Research

How Much Money Do I Need to Start Crypto Trading?

Token Metrics Team
8 min
MIN

Cryptocurrency trading has revolutionized how people invest, allowing anyone with an internet connection to access global markets 24/7. But one of the most common questions beginners ask is: "How much money do I need to start trading crypto?"

The answer depends on your goals, risk tolerance, and the strategies you intend to use. In this article, we’ll explore how much you really need to get started, break down different trading approaches, and explain how platforms like Token Metrics can help you trade smarter with AI-driven insights—even with a small budget.

Understanding Crypto Trading: The Basics

Before determining how much money you need, it’s essential to understand what crypto trading involves. Cryptocurrency trading is the process of buying and selling digital assets like Bitcoin, Ethereum, and altcoins to profit from price movements. Unlike traditional stock markets, crypto markets:

  • Operate 24/7, offering constant trading opportunities.
  • Allow fractional ownership, meaning you can buy a small portion of a cryptocurrency instead of a whole coin.
  • Have low barriers to entry, enabling traders to start with minimal funds.

However, the volatile nature of crypto means your starting amount must align with your risk management plan.

How Much Money Do You Need to Start Crypto Trading?

There’s no single amount required to start trading crypto—it largely depends on your trading style, goals, and platform. Here’s a breakdown:

1. The Absolute Minimum: $10–$50

Most exchanges like Binance, Coinbase, and Kraken allow users to start trading with as little as $10–$50. This is a great entry point for beginners who want to learn the ropes without risking too much.

  • Pros:

    • Low financial commitment.
    • Great for testing strategies.
    • Less emotional stress compared to larger investments.

  • Cons:
    • Limited profit potential.
    • Transaction fees may eat into gains.

2. A Practical Starting Point: $250–$500

Many beginner traders find $250–$500 to be a sweet spot. This amount allows for diversification—spreading funds across multiple tokens—and gives you enough margin to experiment with different strategies.

  • Example:

    • $200 in Bitcoin or Ethereum (low-risk, high-liquidity assets).
    • $100–$200 in promising altcoins (higher growth potential).
    • $50–$100 reserved for short-term trades.

This amount balances risk and opportunity, helping you learn without overexposing yourself.

3. For Serious Traders: $1,000+

If your goal is to actively trade (day trading, swing trading, or building a diversified portfolio), starting with $1,000+ gives you more flexibility.

  • Why?

    • Allows for better diversification across multiple crypto assets.
    • Provides room to absorb market volatility without liquidating too early.
    • Enables you to take advantage of advanced tools and AI-driven insights on platforms like Token Metrics.

Factors That Influence How Much You Should Start With

When deciding how much to invest, consider these factors:

1. Risk Tolerance

Crypto is volatile—price swings of 10–20% in a single day are common. Only invest what you can afford to lose.

2. Trading Goals

Are you aiming for quick profits (day trading), medium-term growth (swing trading), or long-term wealth (HODLing)? Your goals will dictate your starting amount.

3. Trading Strategy

Scalping or day trading requires more capital for frequent trades, while long-term investing can start with smaller amounts.

4. Fees

Trading fees, withdrawal fees, and network fees can impact your profits. Some exchanges have minimum trade sizes, so starting with too little might not be practical.

How Token Metrics Helps You Trade Smarter—Even with a Small Budget

Starting with a small amount doesn’t mean you can’t succeed. With AI-driven research and trading tools, platforms like Token Metrics level the playing field for beginners and experienced traders alike.

Here’s how Token Metrics can help:

1. AI-Powered Trading Signals

Token Metrics provides real-time bullish and bearish signals based on 80+ data points. This helps you make smarter entry and exit decisions—crucial when trading with limited funds.

2. Proprietary Trader and Investor Grades

Our Trader and Investor Grades score tokens based on short-term and long-term potential, helping you focus on assets with the best risk-reward profile.

3. Moonshot Finder for Low-Cap Opportunities

Want to turn a small investment into something bigger? Token Metrics’ Moonshot Finder identifies high-potential low-cap altcoins before they pump, giving you an edge.

4. AI Indices & Auto-Managed Portfolios

Don’t know where to start? Token Metrics offers AI-driven crypto indices, automatically managing a diversified portfolio based on current market conditions.

5. Free & Flexible Plans

Whether you’re starting with $0 or $166.7 per month, Token Metrics offers free and paid plans to match your needs.

Can You Really Make Money Starting Small?

Yes, you can—but it requires patience, strategy, and the right tools. Many traders have grown $100–$500 portfolios into thousands by leveraging long-term investments in quality projects and AI-guided trading signals.

  • Example:

    • A $100 investment in Ethereum in early 2020 would have grown to over $4,000 by 2021.
    • A $50 investment in a low-cap moonshot token could multiply 10x or more if chosen wisely.

Best Practices for Starting Small in Crypto Trading

  1. Start with what you can afford to lose – Never invest rent or essential funds.
  2. Diversify your portfolio – Spread your investment across multiple tokens.
  3. Use AI-powered tools – Platforms like Token Metrics reduce guesswork and improve decision-making.
  4. Avoid emotional trading – Stick to your strategy and avoid panic-selling.
  5. Stay educated – Follow market trends, join crypto communities, and use analytical tools.

Final Thoughts

So, how much money do you need to start crypto trading?
The truth is—you can start with as little as $10, but for a more meaningful experience and potential growth, $250–$1,000 is a practical starting range.

The key isn’t just the amount—it’s how you trade. Using AI-driven insights from Token Metrics, you can make smarter decisions, find hidden gems, and navigate crypto’s volatility like a pro.

Whether you’re starting small or diving in with a bigger budget, Token Metrics helps you trade confidently and build a strategy tailored to your goals.

Research

What’s the Difference Between Trading and Investing in Crypto?

Token Metrics Team
8 min
MIN

Introduction: Why This Question Matters

In 2025, crypto has matured into a multi‑trillion‑dollar market, attracting everyone from day traders to long‑term institutional investors. But not all approaches to crypto are the same.

If you’re new to digital assets, you might wonder: “What’s the difference between trading and investing in crypto?” Understanding the distinction will help you choose the strategy that matches your goals, risk tolerance, and time commitment.

This guide breaks down trading vs. investing in crypto — explaining their key differences, benefits, risks, and how Token Metrics empowers you to succeed at either.

What Is Crypto Trading?

Crypto trading is the short‑term buying and selling of cryptocurrencies to profit from price fluctuations.

Timeframe:

  • Minutes to weeks. Traders enter and exit positions quickly.

Objective:

  • Profit from volatility. Traders capitalize on price swings rather than holding assets for the long term.

Approach:

  • Use technical analysis (TA), price charts, and AI signals to make quick decisions.

Common Trading Styles:

  1. Day Trading: Multiple trades in a single day, holding no overnight positions.
  2. Swing Trading: Holding assets for days or weeks to capture short‑term trends.
  3. Scalping: Executing many small trades for tiny gains.
  4. Futures & Margin Trading: Using leverage for higher potential returns (and risk).

Pro Tip:
Traders rely heavily on real‑time data and AI‑driven insights to react fast. Tools like Token Metrics provide trading signals, narrative detection, and technical ratings for hundreds of tokens.

What Is Crypto Investing?

Crypto investing is the long‑term holding of digital assets based on their growth potential.

Timeframe:

  • Months to years. Investors aim to benefit from long‑term appreciation.

Objective:

  • Accumulate wealth over time. Investors believe in the future of blockchain technology and hold through volatility.

Approach:

  • Focus on fundamental analysis (FA) — evaluating project teams, technology, tokenomics, and adoption potential.

Common Investing Strategies:

  1. HODLing: Holding strong assets like Bitcoin and Ethereum long‑term.
  2. Staking: Locking tokens (e.g., ETH, ADA) for passive income.
  3. Dollar‑Cost Averaging (DCA): Investing fixed amounts regularly regardless of price.
  4. Narrative‑Driven Investing: Allocating capital to emerging sectors (AI tokens, real‑world assets).

Pro Tip:
Investors benefit from portfolio optimization tools like Token Metrics, which helps identify high‑potential projects and maintain balanced allocations.

Trading vs. Investing: Key Differences

‍

Which One Is Right for You?

Choose Trading If:

  • You enjoy fast‑paced decision‑making.
  • You can dedicate time to monitoring markets daily.
  • You’re comfortable with higher short‑term risk.

Choose Investing If:

  • You believe in crypto’s long‑term potential.
  • You prefer less active management.
  • You want to earn passive income (staking, yield farming).

Or Do Both:
Many crypto enthusiasts combine the two — holding long‑term assets like Bitcoin and Ethereum while trading smaller portions for short‑term gains.

How Token Metrics Supports Both Traders and Investors

Whether you’re trading or investing, Token Metrics is an essential AI‑powered platform for making smarter decisions.

For Traders:

  • AI‑Driven Trading Signals: Detect bullish or bearish momentum.
  • Technical Ratings: Evaluate coins based on chart patterns and historical performance.
  • Real‑Time Alerts: Get notified when tokens hit target levels.

For Investors:

  • Fundamental Analysis: Access in‑depth ratings for over 6,000 projects.
  • Narrative Detection: Identify emerging sectors like AI tokens or DeFi 2.0 early.
  • Portfolio Optimization: Build and maintain a risk‑adjusted portfolio for the long term.

In short: Token Metrics helps traders react faster and investors plan smarter.

Benefits of Trading

  • Quick Profits: Capitalize on volatility.
  • Flexible: Enter and exit markets at any time.
  • Exciting: Appeals to those who enjoy active engagement.

Drawbacks:

  • Requires constant monitoring.
  • Higher emotional stress.
  • Greater risk of losses.

Benefits of Investing

  • Wealth Accumulation: Capture long‑term growth.
  • Less Time‑Intensive: No need for constant market tracking.
  • Passive Income: Earn from staking and yield farming.

Drawbacks:

  • Exposed to long‑term downturns.
  • Slower returns compared to active trading.

Practical Example: Combining Both

Imagine you allocate:

  • 70% to long‑term investments (BTC, ETH, Token Metrics AI (TMAI), and Layer 2 solutions).
  • 30% to short‑term trading (narrative‑driven altcoins).

How Token Metrics Helps:

  • Long‑Term: Use AI ratings and portfolio optimization for your HODL assets.
  • Short‑Term: Get trading alerts and technical signals for timely entry and exits.

‍

Conclusion

The difference between trading and investing in crypto comes down to timeframes, goals, and risk tolerance.

  • Trading is for those who want to actively profit from volatility.
  • Investing is for those who aim for long‑term wealth accumulation.

No matter which approach you choose, Token Metrics — the leading AI crypto analysis, research, and trading platform — gives you the tools to succeed.

By combining AI‑powered insights, narrative detection, and portfolio optimization, Token Metrics helps both traders and investors make smarter, data‑driven decisions in 2025.

Crypto Basics

Which Cryptocurrency Exchange Should I Use? A 2025 Guide for Smart Trading

Token Metrics Team
6 min
MIN

Introduction: Why Choosing the Right Exchange Matters

In 2025, cryptocurrency trading is more accessible than ever, with hundreds of exchanges competing for your attention. But choosing the right exchange can make the difference between a smooth, profitable trading experience and one full of unnecessary risks, high fees, or limited features.

If you’re asking “Which cryptocurrency exchange should I use?”, this guide will help you compare the top platforms and explain how Token Metrics — the leading AI‑powered crypto analysis, research, and trading platform — can help you trade smarter no matter which exchange you choose.

Types of Cryptocurrency Exchanges

Before selecting an exchange, it’s important to understand your options:

1. Centralized Exchanges (CEXs):

  • Examples: Coinbase, Binance, Kraken, KuCoin
  • Pros: Easy to use, high liquidity, fiat on‑ramps.
  • Cons: Custodial (they hold your crypto), may require KYC (identity verification).

2. Decentralized Exchanges (DEXs):

  • Examples: Uniswap, SushiSwap, PancakeSwap
  • Pros: No intermediaries, you control your funds.
  • Cons: Requires a crypto wallet, higher learning curve, sometimes lower liquidity.

3. Hybrid Exchanges:

  • Combine the ease of CEXs with decentralization features (e.g., dYdX for derivatives).

Pro Tip: Beginners usually start with a trusted CEX, then gradually explore DEXs for more control and advanced opportunities.

Top Cryptocurrency Exchanges in 2025

Here are some of the leading exchanges to consider:

1. Coinbase — Best for Beginners

  • Why Use It: User‑friendly interface, strong security, regulated in multiple jurisdictions.
  • Best For: Buying crypto with fiat, basic spot trading.
  • Downside: Higher fees compared to other platforms.

2. Binance — Best for Global Traders

  • Why Use It: Low fees, extensive crypto listings, advanced trading features (futures, options).
  • Best For: Traders who want access to a wide range of coins and features.
  • Downside: Regulatory restrictions in some regions.

3. Kraken — Best for Security

  • Why Use It: Excellent reputation for security and transparency, futures trading available.
  • Best For: U.S. traders and those prioritizing safe trading.
  • Downside: Fewer listed altcoins compared to Binance.

4. Uniswap — Best Decentralized Option

  • Why Use It: Fully decentralized, thousands of tokens available.
  • Best For: Accessing early‑stage or niche tokens.
  • Downside: Requires a crypto wallet and understanding of Ethereum gas fees.

How to Choose the Best Exchange for You

When deciding which platform to use, consider:

  • Your Experience Level: Beginners might prefer Coinbase, while experienced traders may like Binance or DEXs.
  • Supported Tokens: Make sure your preferred coins are listed.
  • Trading Features: Do you need futures, staking, or DeFi access?
  • Fees & Limits: Check transaction costs and withdrawal fees.
  • Security: Look for exchanges with a strong track record and insurance options.

But What If You Could Trade Smarter on ANY Exchange?

Choosing an exchange is just the first step. To maximize profits, you need data‑driven insights, trend detection, and portfolio strategies — that’s where Token Metrics comes in.

Why Token Metrics Is Essential for Traders in 2025

No matter which exchange you choose, Token Metrics empowers you to trade smarter with AI‑powered crypto analysis, research, and trading tools.

Here’s how:

  • AI‑Generated Coin Ratings: Analyze over 80 data points per token (fundamentals, technicals, sentiment, on‑chain activity).
  • Narrative Detection: Identify emerging market narratives (AI coins, DeFi 2.0, Layer 2 scaling) before they trend.
  • Portfolio Optimization: Build a custom trading portfolio aligned with your risk tolerance and goals.
  • Real‑Time Alerts: Get notified when coins hit your target prices or show bullish/bearish momentum.
  • Exchange‑Agnostic Tools: Use Token Metrics to guide trading decisions on Coinbase, Binance, Uniswap, and more.

In short: Token Metrics isn’t an exchange — it’s your personal AI crypto research assistant.

Example: Using Token Metrics + Your Exchange

Let’s say you trade on Binance:

  1. Research with Token Metrics: Identify high‑potential coins based on AI ratings.
  2. Monitor Narratives: Spot trending sectors (e.g., AI tokens) with real‑time updates.
  3. Optimize Your Portfolio: Adjust allocations based on AI‑driven insights.
  4. Execute Trades: Use Binance for execution, guided by data from Token Metrics.

This combination lets you trade like a pro without guesswork.

Security Tip: Keep Your Crypto Safe

No matter which exchange you choose:

  • Enable 2FA: Protect your accounts from unauthorized access.
  • Use Hardware Wallets: Store long‑term holdings offline (Ledger, Trezor).
  • Don’t Leave All Funds on an Exchange: Exchanges can be targets for hacks.

Beginner Mistakes to Avoid

  • Choosing an exchange based only on hype: Always prioritize security and features over popularity.
  • Ignoring fees: Small transaction costs can add up.
  • Not using analytics tools: Trading without research increases risk — use Token Metrics to make informed decisions.

Conclusion

So, which cryptocurrency exchange should you use?

  • If you’re a beginner, Coinbase offers simplicity.
  • If you’re an active trader, Binance provides the most features.
  • If you want decentralization, Uniswap is a top choice.

But remember — the exchange is only part of the equation.

To trade profitably in 2025, pair your chosen exchange with Token Metrics — the ultimate AI‑powered crypto research, analysis, and trading platform.

Whether you’re buying your first Bitcoin or trading advanced altcoins, Token Metrics helps you cut through noise, detect trends early, and make smarter, data‑driven decisions.

Choose from Platinum, Gold, and Silver packages
Reach with 25–30% open rates and 0.5–1% CTR
Craft your own custom ad—from banners to tailored copy
Perfect for Crypto Exchanges, SaaS Tools, DeFi, and AI Products