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Token Metrics API

Free Crypto API: Build Smarter Crypto Apps at Zero Cost

Compare the best free crypto APIs for developers. Token Metrics offers real-time prices + AI trading signals free vs CoinGecko, CryptoCompare, and Glassnode. Perfect for prototyping trading bots and dashboards.
Sam Monac
6 min
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What Is a Free Crypto API?

A free crypto API gives developers access to cryptocurrency data without upfront costs. Think of it as a bridge between raw blockchain/market data and your application. APIs let you pull:

  • Real-time token prices and charts

  • Historical data for backtesting and research

  • Market cap, liquidity, and trading volumes

  • On-chain metrics such as wallet flows

  • AI-driven trading signals and predictive insights

Free tiers are invaluable for prototyping apps, dashboards, and bots. They let you validate ideas quickly before paying for higher throughput or advanced endpoints.

Why Developers Use Free Crypto APIs

Free crypto APIs aren’t just about saving money—they’re about learning fast and scaling smart:

  • Zero-Cost Entry – Start building MVPs without financial risk.

  • Rapid Prototyping – Test ideas like dashboards, bots, or AI agents quickly.

  • Market Exploration – Access broad coverage of tokens before committing.

  • Growth Path – Once demand grows, upgrade to premium tiers seamlessly.

📌 Tip: Use multiple free crypto APIs in parallel during early development. This helps you benchmark speed, reliability, and accuracy.

Key Features of the Token Metrics Free API

The Token Metrics free tier goes beyond basic price feeds by offering:

  • Real-Time Prices – Live data on Bitcoin, Ethereum, and thousands of tokens.

  • AI Trading Signals – Bull/Bear indicators that help power smarter strategies.

  • Secure Access – Encrypted endpoints with key-based authentication.

  • 30 Days of History – Enough to prototype backtests and analytics features.

Unlike many free crypto APIs, Token Metrics API provides both price data and intelligence, making it ideal for developers who want more than surface-level metrics.

Comparing Free Crypto APIs: Strengths & Trade-offs

  • CoinGecko & CoinMarketCap


    • Pros: Huge token coverage, great for charts and tickers.

    • Cons: Limited historical and no predictive analytics.

  • CryptoCompare


    • Pros: Rich historical tick-level data, good for backtesting.

    • Cons: Free tier limits depth and call volume.

  • Glassnode


    • Pros: Strong on-chain insights.

    • Cons: Many advanced datasets require paid access.

  • Alchemy & Infura


    • Pros: Node-level blockchain access for dApp builders.

    • Cons: Not designed for trading or analytics—raw blockchain data only.

  • Token Metrics


    • Pros: Real-time prices, AI signals, and on-chain analytics in one free tier.

    • Cons: Rate limits apply (upgrade available for higher throughput).

Popular Use Cases: From Bots to Dashboards

  • AI Crypto Trading Bots – Start testing automation using live prices and bull/bear signals.

  • Crypto Dashboards – Aggregate token ratings, prices, and trends for end users.

  • Research Tools – Run small-scale backtests with 30-day historical data.

  • Learning Projects – Ideal for students or developers exploring crypto APIs.

📌 Real-world example: Many developers use the Token Metrics free tier to prototype bots that later scale into production with paid plans.

Best Practices for Using Free Crypto APIs

  1. Start with Prototypes – Test multiple free APIs to compare reliability and latency.

  2. Track Rate Limits – Free tiers often throttle requests (e.g., 5 req/min at Token Metrics).

  3. Combine Data Sources – Use Token Metrics for signals + CoinGecko for broad coverage.

  4. Secure Keys – Treat even free API keys as sensitive credentials.

  5. Prepare to Upgrade – Build flexible code so you can switch tiers or providers easily.

Beyond Token Metrics: Other Free Resources Worth Knowing

  • DefiLlama API – Free coverage of DeFi protocols, yields, and TVL.

  • Dune Analytics – Query blockchain data with SQL for free.

  • TradingView Widgets – Embed charts directly into dashboards.

  • Santiment API – Free endpoints for social/sentiment analytics.

These can complement Token Metrics. For example, you could combine Token Metrics signals + DefiLlama DeFi data + TradingView charts into one unified dashboard.

How to Get Started With the Token Metrics Free API

  1. Sign Up for a free Token Metrics account.

  2. Generate Your API Key instantly from your dashboard.

  3. Check the Docs for endpoints, examples, and code snippets.

  4. Prototype Your App with real-time prices and signals.

  5. Upgrade When Ready to unlock larger datasets and more endpoints.

👉 Grab Your Free Token Metrics API Key

FAQs About Free Crypto APIs

What can I access with Token Metrics Free API?
Live token prices, bull/bear trading signals, and 30 days of historical data.

Are free APIs reliable for production?
Not recommended—free tiers are best for prototypes. Paid tiers ensure reliability and scale.

What are the rate limits?
500 calls/month, 5 requests/minute, and 1 WebSocket connection.

Can I use the free API for trading bots?
Yes—ideal for prototyping. For production-level bots, upgrade for more throughput.

Scaling Beyond Free: Paid Plans & X.402

When your project outgrows free limits, Token Metrics offers flexible upgrades:

  • Pay-Per-Call (X.402) – As low as $0.017 per call, unlimited usage, no commitment.

  • Advanced Plan ($999.99/year) – 20,000 calls/month, indices & indicators, 3 WebSockets.

  • Premium Plan ($1,999.99/year) – 100,000 calls/month, AI agent + reports, 3 years of history.

With up to 35% off using TMAI tokens, scaling is cost-efficient.

📌 Why X.402 matters: Instead of committing upfront, you can grow gradually by paying per call—perfect for startups and side projects.

Build Smarter, Scale Easier

Free APIs help you start quickly and learn fast. Token Metrics gives you more than prices—it adds AI-powered signals and intelligence. Combine it with other free APIs, and you’ll have a toolkit that’s powerful enough for experimentation and flexible enough to scale into production.

👉 Create Your Free Token Metrics Account and Start Building

Build Smarter Crypto Apps &
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Real-time prices, trading signals, and on-chain insights all from one powerful API.
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About Token Metrics
Token Metrics: AI-powered crypto research and ratings platform. We help investors make smarter decisions with unbiased Token Metrics Ratings, on-chain analytics, and editor-curated “Top 10” guides. Our platform distills thousands of data points into clear scores, trends, and alerts you can act on.
30 Employees
analysts, data scientists, and crypto engineers
Daily Briefings
concise market insights and “Top Picks”
Transparent & Compliant
Sponsored ≠ Ratings; research remains independent
Want Smarter Crypto Picks—Free?
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Token Metrics Team
Token Metrics Team

Recent Posts

Research

Future of Cryptocurrency - Is Crypto the Future?

Token Metrics Team
5 minutes

If you are wondering about the future of cryptocurrency, we did some digging to answer that, and more.

Cryptocurrency has gained popularity and value in recent years, with the most well-known cryptocurrency, Bitcoin, reaching an all-time high in late 2021. However, the future of the crypto market is uncertain and the subject of much debate. Some analysts predict continued growth, while others foresee a potential crash. In this article, we will explore the potential future of cryptocurrency, including potential growth, crashes, and the role of regulation. We will also discuss predictions for specific cryptocurrencies, such as Bitcoin and Ether, as well as altcoins and decentralized finance (DeFi) and autonomous organizations (DAOs).

Will cryptocurrencies take off? Understanding the potential future of the crypto market can help investors make informed decisions about their investments.

11 Significant Crypto Predictions for 2023

By examining the past trends and indications in the crypto market, it appears that the future of crypto holds exciting opportunities for investors. Here are some notable crypto predictions to keep an eye on in 2023:

Continued Popularity and Growth

Some analysts predict that the popularity and value of cryptocurrencies, particularly Bitcoin, will continue to rise in 2023. This could be due to increased acceptance by businesses and higher demand for Bitcoin exchange-traded funds (ETFs).

Steep Crash

However, others believe that the crypto market is unstable and vulnerable to a crash. In 2022, Bitcoin's price fell by roughly 40% due to factors such as slowing economic growth and rising interest rates. This bearish market may continue into 2023, leading to a potential crash.

Volatility and Regulation

Regardless of whether the market experiences growth or a crash, it is likely that Bitcoin and other cryptocurrencies will continue to be volatile. This volatility could be mitigated by increased regulation of the crypto market, which some predict will play a more significant role in 2023.

DeFi and DAOs

The shift toward decentralized finance (DeFi) and autonomous organizations (DAOs) is expected to continue in 2023. DeFi aims to remove the need for middlemen in traditional financial products, while DAOs are a new type of internet community based on blockchain technology. These developments could help to increase the stability and growth of the crypto market.

Bitcoin's Price

Some analysts predict that Bitcoin's price will continue to rise, potentially reaching $100,000 by the end of the year. Others believe that the market is unstable and could experience a crash.

Increased Adoption

It is predicted that over 500 million people worldwide will invest in and own Bitcoin by the end of 2023. This could be due to increased awareness and acceptance of the cryptocurrency.

ETF Approval

The approval of the first spot Bitcoin ETF in the US is possible in 2023. This would allow investors to have direct exposure to the cryptocurrency itself, rather than just tracking Bitcoin futures contracts.

DeFi and DAOs

The shift toward DeFi and DAOs is expected to continue and could become the highest growth areas of the crypto market.

Ether's Performance

Some analysts predict that Ether, the second-largest cryptocurrency by market value, will outperform Bitcoin again in 2023.

Regulation

It is possible that regulation of the crypto market will play a more significant role in 2023, potentially helping to stabilize the market.

Altcoins

The performance of altcoins, or alternative cryptocurrencies, is uncertain. Some may experience growth, while others could struggle. It is important for investors to carefully research and evaluate individual altcoins before making any investments.

Key Takeaways

When we see crypto from the growth perspective, there is a fair chance of getting the climb in 2023, especially for Bitcoin. However, Ether can take over the throne owing to the stats of 2022.

If you are seeking expert research and analysis to inform your investment decisions, consider signing up for Token Metrics. Our platform can provide you with access to the best performing cryptocurrencies with just a click. Explore our plans to learn more.

Crypto Basics

What is Crypto Burning: Meaning, Definition, and Explanation

Token Metrics Team
4 minutes

In this article, we will explain what crypto burning is, how it is done, and why it is done. We will also discuss the potential benefits and risks of burning crypto, as well as the role of developers and miners in the process. By the end of this article, you will have a better understanding of how crypto burning works and whether it is something that you may want to consider for your own crypto investments.

What Does it Mean to Burn Crypto?

Crypto burning is the process of removing cryptocurrency from the blockchain. This concept originated from traditional stock markets and is facilitated by smart contracts. When tokens are burned, it can increase the value of the asset and make it more attractive to investors. It can also have benefits for tax regulations.

How is Crypto Burned?

The process of burning involves sending tokens to an invalid wallet address, where they cannot be accessed. This is typically done by developers or miners to manipulate the supply of tokens and potentially increase their value.

Why Burn Crypto Coins?

Developers burn tokens for many reasons, including to increase the value of the asset, create hype, and improve the business model. By decreasing the supply of tokens in circulation, they can also help to combat the effects of inflation and make the market more stable.

Can You Burn Crypto?

Technically, anyone can burn crypto. However, it is not advisable for individual investors to burn their own tokens as the coins will be permanently lost. Instead, they may want to consider staking or trading their crypto.

What is Crypto Buyback?

Crypto buyback is the process of repurchasing tokens from circulation. This is typically done by developers to decrease the supply of tokens and potentially increase their value. Buybacks are regulated by smart contracts, which ensures that the removed tokens will never resurface. This can be a good way for investors to encourage long-term holding (HODLing) of the tokens.

Crypto Basics

How to Create a Crypto Coin? 3 Ways to Do It

Token Metrics Team
6 minutes

In today's world of decentralization and blockchain technology, creating your own cryptocurrency has become a viable option for individuals and businesses alike. But how exactly does one go about creating a cryptocurrency? In this post, we will explore three methods for creating a cryptocurrency, ranging from the most difficult to the easiest. Whether you want to create your own blockchain, fork an existing one, or launch a token on an existing platform, this guide will provide a comprehensive overview of the steps involved. Let's dive in!

How To Create A Crypto Coin?

We are going to explain three ways to create a cryptocurrency, from basic to advanced.

Create your own blockchain (advanced)

  • Choose a consensus mechanism: Determine how transactions will be validated on your network
  • Design the blockchain architecture: Define who can create blocks, validate transactions, and access data
  • Create a user interface: Make sure the user experience is enjoyable
  • Audit crypto and code: Hire experts to review your code to ensure security and compliance

Fork an existing blockchain (intermediate)

  • Choose a blockchain to fork: Decide on an existing blockchain that aligns with your goals
  • Clone the blockchain: Create a copy of the chosen blockchain's code
  • Modify the code: Make any necessary changes to the code to suit your needs
  • Launch your blockchain: Deploy your modified blockchain and begin mining

Launch a token on an existing platform (basic)

  • Choose a blockchain: Decide on a blockchain that supports the creation of tokens, like Ethereum
  • Follow the platform's instructions: Each platform will have its own process for creating and launching a token - you can also use sites like Token Factory to launch your token
  • Promote and distribute your token: Once your token is live, market and distribute it to potential users.

What is the Difference Between a Coin and a Token?

A coin and a token are both types of cryptocurrency, but they have some key differences. A coin is a cryptocurrency that runs on its own blockchain, meaning it has its own independent infrastructure and user base. Examples of coins include Bitcoin and Litecoin.

On the other hand, a token is a cryptocurrency that is built on top of an existing blockchain, using the infrastructure and user base of that blockchain. Tokens are often created to represent a specific asset or utility, such as rewards points or event tickets. Examples of tokens include Tether and Shiba Inu.

Another key difference between coins and tokens is their relative scarcity. Since there can only be one coin on a given blockchain, the supply of coins is limited. This can give coins a certain level of value and scarcity, which can make them attractive to investors. In contrast, there can be an unlimited number of tokens on a given blockchain, which can make them less scarce and potentially less valuable.

It's important to understand the differences between coins and tokens when creating your own cryptocurrency. Depending on your goals and requirements, you may decide to create a coin or a token, or even both. With a clear understanding of the differences between the two, you can make an informed decision and choose the right approach for your project.

A Few Things to Consider Before Designing Your Crypto Coin:

There are several important things to consider before designing your crypto coin. These considerations will help you make informed decisions and increase the chances of success for your project.

First, you should consider the utility of your cryptocurrency. What value does it offer to users? Why would someone want to buy and use your cryptocurrency? What problems does it solve? Answering these questions will help you understand the potential value of your cryptocurrency and determine its utility.

Second, you should consider any regulatory and legal requirements. Cryptocurrency is a rapidly evolving field, and laws and regulations can change quickly. It's important to understand any compliance issues in your area and make sure your project adheres to all relevant regulations.

Third, you should consider the tokenomics of your cryptocurrency. Tokenomics is the study of the economics of a crypto project, including factors such as initial pricing, supply, emissions, distribution, market capitalization, and potential value. Understanding the tokenomics of your project will help you make informed decisions about how to structure your cryptocurrency and maximize its potential value.

Overall, it's important to carefully consider these factors before designing your crypto coin. By taking the time to understand your goals, requirements, and the economics of your project, you can increase the chances of success for your cryptocurrency.

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