Research

12 Best Cryptocurrency APIs - Real-time Prices, On-Chain Crypto Data, AI Crypto Trading Signals

Use Token Metrics crypto API to get the best, most accurate real-time prices, on-chain data, and AI crypto trading signals from one powerful crypto API. Best crypto API built for speed and accuracy to help you trade smarter instantly.
Token Metrics Team
8 minutes
MIN

Cryptocurrencies have revolutionized the way people make payments and investments. With the rise of digital assets, Cryptocurrency APIs have become essential tools for developers to build applications that can interact with the blockchain. An API allows you to connect to a third-party service and retrieve or submit data in a standardized format to a website or application.

Token Metrics Crypto API is the best cryptocurrency API currently available. Use Token Metrics crypto API for real-time prices, on-chain data, and AI crypto trading signals from one powerful crypto API. This crypto API is built for speed and accuracy to help you trade smarter instantly.We will look into the features and advantages, discuss the different types of APIs, and learn how to use them to create powerful applications. We will also cover the pros and cons of using these APIs, and provide examples of how they can be used. Last but not least, we will discuss the pricing of these APIs and provide some best practices for using them.

Introduction to Crypto APIs

Cryptocurrency APIs are Application Programming Interfaces (APIs) that allow developers to access and integrate cryptocurrency data into their applications. APIs provide access to a variety of data such as prices, transactions, and blockchains. With the help of these APIs, developers can create powerful applications that can interact with the crypto world.

Benefits of Using Crypto APIs

The most obvious benefit of using cryptocurrency APIs is that they provide access to a wealth of data that can be used to build powerful applications. The APIs provide access to real-time data. This data can be used to create applications that can monitor the market, track transactions, and even make predictions about the future of the crypto world.

Another benefit of using cryptocurrency APIs is that they are easy to use and provide a consistent and reliable source of data. The APIs are designed to be user friendly, so developers don’t have to worry about getting bogged down in technical details. The APIs also provide reliable, up-to-date data that can be used to create accurate and reliable applications.

Cryptocurrency APIs can also save developers a lot of time and effort. Instead of having to manually gather data, developers can simply use the APIs and get the data they need. This can save developers a lot of time and effort, allowing them to focus on other aspects of their applications.

Types of Cryptocurrency APIs

There are a variety of cryptocurrency APIs available, each with its own set of features and advantages. The most common types of APIs are:

  • Price APIs provide access to real-time price data for a variety of cryptocurrencies. These APIs can be used to monitor the market and make predictions about the future of the crypto world.
  • Transaction APIs provide access to data about transactions that have occurred in the blockchain. This data can be used to track transactions and determine the current state of the blockchain.
  • Blockchain APIs provide access to the blockchain itself. These APIs are used to interact directly with the blockchain, allowing developers to create applications that can interact with the blockchain.

List of 12 Best Cryptocurrency APIs You Can Count On

Now that we’ve discussed the benefits and types of crypto APIs, let’s look at the best APIs to get crypto data today.

1. Token Metrics: Token Metrics crypto API offers  real-time prices, on-chain data, and AI trading signals from one powerful crypto API.  It is the best crypto API built for speed and accuracy to help you trade smarter instantly. Token Metrics is an AI driven platform which enables its users research thousands of cryptocurrencies in an automated way, without manually going through coins individually. Use Token Metrics crypto API for fast and most accurate crypto data.

What’s inside the $TMAI API?

✅ AI-Powered Trading Signals – Bullish and bearish calls backed by over 80 data points
✅ Real-Time Grades – Instantly assess token momentum with Trader & Investor Grades
✅ Curated Indices – Plug into ready-to-use crypto portfolios by sector or market cap
✅ Lightning-Fast Performance – Built for bots, dashboards, dApps, and next-gen trading tools

Whether you’re building a DeFi dashboard, an alpha-sniping bot, or your own crypto terminal — this is your edge.

‍Price: Free

2. CoinMarketCap: CoinMarketCap offers one of the most popular APIs for retrieving real-time cryptocurrency market data, including prices, volume, and market capitalization for over 8,000 coins and tokens. It also offers endpoints for historical data and global averages.

‍Price Range: $0-$700 a month

3. CoinGecko: CoinGecko has an API that provides a comprehensive set of cryptocurrency data, including market data, developer activity, and community metrics for more than 10,000 coins and tokens. API is both paid and free, depending on your needs.

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Price Range: Starting from $129 per month

4. CryptoCompare: CryptoCompare offers endpoints for news articles, social media activity, and mining data. It strives to find the best places to store, trade and mine cryptocurrencies.

Price Range: Free

5. BitMEX: BitMEX is a cryptocurrency derivatives exchange that provides access to real-time prices and historical data. Their API provides instant access to a variety of market data such as trading volumes and market caps.

Price & Plans: Custom 

6. CoinDesk: CoinDesk is a platform for media, events, data and indices for the cryptocurrency market. CoinDesk Indices is a product of CoinDesk that offers access to cryptocurrency data with ease.

‍Price: Free

7. Bitstamp: Bitstamp is a cryptocurrency exchange that provides access to real-time prices and historical data. It provides premium access to crypto trading for both individuals and institutions through high liquidity, reliable order execution and constant uptime. 

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Price: 0.50% for those with under $10,000 in 30-day trading volume

8. CoinMarketCal: CoinMarketCal is a database of upcoming events related to cryptocurrencies, allowing you to track things like unlocks, giveaways, and more. Their API can be used to track your favourite coins.

Price: Free

9. Poloniex: Poloniex is a cryptocurrency exchange that provides access to real-time prices and historical data. The API also provides access to a variety of market data such as trading volumes and market caps.

Price: The Maker and Taker fee rates for trading USDT-collateralized perpetual contracts on Poloniex are 0.01% and 0.04% respectively, and the changes apply to all customers regardless of their trade volume.

10. Binance: Binance is one of the largest cryptocurrency exchanges and provides access to a variety of data such as prices, transactions, and blockchains. The API also allows developers to interact with the Binance platform, allowing them to buy, sell, and store cryptocurrencies. 

‍Price: Free

 11. Kraken: Kraken is a cryptocurrency exchange and also provides access to crypto data such as prices, transactions, and blockchains. Like Binance, their API also allows you to interact with Kraken through code.

‍Price: 0.2-0.3% of the 30-day trade volume

12. CCXT: CCXT is a library for cryptocurrency trading and e-commerce with support for many bitcoin/ether/altcoin exchange markets and merchant APIs.

Price: $0-$29

Note: The prices are subject to change or may have already changed.

How to Choose the Best Crypto API

Choosing the best cryptocurrency API for your application can be a daunting task. There are a variety of APIs available, each with its own set of features and advantages. So, it’s important to take the time to research the different APIs and determine which one is right for your application.

When choosing a Cryptocurrency API, it’s important to consider the features it provides. 

Here are a few questions you need answers to:

  • Does the API provide access to real-time price data? 
  • Does it provide access to the blockchain? 
  • Does it provide access to a variety of market data? 

It’s also important to consider the pricing of the API. As mentioned above, some APIs are free, while others require a subscription fee. It’s important to consider the cost of the API and make sure it fits within your budget. 

Best Practices for Using Crypto APIs

Using crypto APIs can be a great way to access data and create powerful applications. However, there are a few best practices to keep in mind when using these APIs.

  • The first best practice is to make sure the API is reliable. The API you use should be up-to-date and provide accurate data.
  • The second best practice is to make sure the API is secure. Make sure the API you are using is secure and provides the necessary security measures.
  • The third best practice is to use the API responsibly. This API has to be used responsibly and avoid being abused.
  • Finally, make sure the API is easy to use and quick to understand.

 To explore our FREE Token Metrics crypto API, click here.

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Token Metrics Team
Token Metrics Team

Recent Posts

Research

Why Manual Crypto Portfolio Management Is Costing You Money (And Time)

Token Metrics Team
6
MIN

You're tracking 50+ tokens across three exchanges, updating your rebalancing spreadsheet every weekend, and second-guessing every exit decision at 2 AM. Sound familiar? Manual crypto portfolio management isn't just exhausting—it's expensive. Between missed rebalances, execution drag, and behavioral mistakes during volatility, DIY portfolio management quietly erodes returns before you see any market gains.

The data tells the story: investors who manually manage diversified crypto portfolios typically underperform comparable automated strategies by 12-18% annually, with 60% of that gap coming from operational inefficiency rather than market timing. If you're spending 10+ hours weekly maintaining positions, those hours have a cost—and it's higher than you think.

The Hidden Costs Destroying Your Returns

Time Drain: The 500-Hour Tax

Managing a diversified crypto portfolio demands constant vigilance. For investors holding 20+ positions, the weekly time investment breaks down to approximately:

  • Market monitoring: 5-8 hours tracking prices, news, and on-chain metrics
  • Rebalancing calculations: 2-3 hours determining optimal weights and required trades
  • Order execution: 3-5 hours placing trades across multiple platforms
  • Record keeping: 1-2 hours logging transactions for tax reporting
  • Research updates: 3-5 hours staying current on project developments

That's 14-23 hours weekly, or 728-1,196 hours annually. At a conservative $50/hour opportunity cost, you're spending $36,400-$59,800 in time value maintaining your portfolio. Even if you value your time at minimum wage, that's still $10,000+ in annual "sweat equity" that automated solutions eliminate.

Execution Drag: Death by a Thousand Trades

Small trades erode portfolios through accumulated friction. Every manual rebalance across a 50-token portfolio requires dozens of individual transactions, each incurring:

  • Trading fees: 0.1-0.5% per trade (average 0.25%)
  • Bid-ask spreads: 0.2-0.8% depending on liquidity
  • Slippage: 0.3-1.2% on smaller cap tokens
  • Gas fees: $2-50 per transaction depending on network congestion

For a $100,000 portfolio rebalanced monthly with 40 trades per rebalance, the costs add up:

  • Average cost per trade: ~$100
  • Monthly execution drag: $4,000
  • Annual execution drag: $48,000 (48% of portfolio value)

The smaller your individual trades, the worse the ratio becomes. A $500 rebalancing trade on a low-liquidity altcoin might pay $25 in fees—a 5% instant loss before any price movement.

Automated indices solve this. TM Global 100, Token Metrics' rules-based index, consolidates 100 individual positions into a single transaction at purchase, with weekly rebalances executed through optimized smart contract batching. Users typically save 3-7% annually in execution costs alone compared to manual approaches.

Behavioral Mistakes: Your Worst Enemy Is in the Mirror

Market psychology research shows that manual portfolio managers tend to make predictable, costly mistakes:

  • Panic selling during drawdowns: When Bitcoin drops 25% in a week, can you stick to your exit rules? Many override their plans during high volatility, often selling near local bottoms.
  • FOMO buying at peaks: Tokens up 300% in a week attract chase behavior, with managers entering after the movement is mostly over.
  • Rebalancing procrastination: Putting off rebalancing leads to drift, holding too much of past winners and missing new opportunities.

Token Metrics' systematic approach removes emotion from the equation. The TM Global 100 Index follows a transparent ruleset: hold the top 100 tokens by market cap during bullish phases, shift to stablecoins during bearish cycles, and rebalance weekly—eliminating emotional override and procrastination.

Missed Rebalances: Drifting Out of Position

Market cap rankings shift constantly. A token ranked #73 on Monday might hit #95 by Friday, or surge to #58. Without systematic rebalancing, your portfolio becomes a collection of recent winners or dumpers.

In Q3 2024, Solana ecosystem tokens surged while Ethereum DeFi tokens consolidated. Manual managers who missed weekly rebalances held too much ETH and insufficient SOL exposure. The result: 15-20% underperformance compared to systematically rebalanced portfolios. Data from Token Metrics shows that weekly rebalancing outperforms monthly or quarterly approaches by 8-12% annually.

Tax Reporting Nightmares

Every trade creates a taxable event. Manual managers executing over 200 trades yearly face:

  • Hours spent compiling transaction logs
  • Reconciliation across multiple exchanges
  • Cost-basis tracking for numerous lots
  • High professional accounting fees ($500-2,000+)

Automated solutions like Token Metrics provide transparent transaction logs for each rebalance, simplifying tax reporting and reducing accounting costs.

The Token Metrics Advantage: Research Meets Execution

Token Metrics has established itself as a leading crypto analytics platform, supporting over 50,000 users with AI-powered token ratings, market regime detection, portfolio optimization tools, and trading signals. But analysis alone isn't enough—implementation is crucial.

TM Global 100 Index bridges this gap. It turns research into actionable, tradeable products by automating rebalancing based on Token Metrics' signals and methodology. One click replaces hours of manual work, following a validated systematic approach.

Automation Without Compromise

The best automation is transparent. TM Global 100 offers:

  • Rules-Based Discipline: Bull markets—hold top 100 tokens; bear markets—move to stablecoins
  • Weekly rebalancing every Monday
  • Full methodology disclosure
  • One-Click execution via embedded self-custodial wallet
  • Real-time market insights and holdings visualization
  • Transaction logs with fees and timestamps

This streamlined process allows users to rapidly execute disciplined rebalancing, saving countless hours and increasing operational efficiency while maintaining asset control.

Decision Framework: When to Automate

Automation suits investors who:

  • Hold 15+ tokens and find rebalancing burdensome
  • Miss optimal rebalancing windows due to time constraints
  • Have experienced emotional trading decisions during volatility
  • Spend over 5 hours a week on portfolio management
  • Want broad exposure without manual tracking

Manual management may be suitable for those with fewer positions, active trading infrastructure, or tactical strategies. For most diversified portfolios, automation enhances efficiency and reduces operational errors.

The Compound Effect of Efficiency

Small inefficiencies compound over time. Over five years, a $50,000 portfolio managed manually with a 12% annual return minus 4-2-1% losses yields roughly a 5% net return, ending at about $63,814. A systematic approach with optimizer integration, zero behavioral errors, and regular rebalancing can attain a 13% net return, reaching approximately $92,246—an increase of over $28,000, not counting time saved.

Conclusion: Time Back, Returns Up

Manual crypto portfolio management made sense when portfolios were small and concentrated. Today’s diversified sets require operational discipline to prevent erosion of returns due to execution drag, missed rebalances, and emotional mistakes. Token Metrics built TM Global 100 to turn research into automated, transparent execution, reclaim your time, and boost portfolio discipline—without sacrificing control.

Research

Moonshots API: Discover Breakout Tokens Before the Crowd

Token Metrics Team
5
MIN

The biggest gains in crypto rarely come from the majors. They come from Moonshots—fast-moving tokens with breakout potential. The Moonshots API surfaces these candidates programmatically so you can rank, alert, and act inside your product. In this guide, you’ll call /v2/moonshots, display a high-signal list with TM Grade and Bullish tags, and wire it into bots, dashboards, or screeners in minutes. Start by grabbing your key at Get API Key, then Run Hello-TM and Clone a Template to ship fast.

What You’ll Build in 2 Minutes

  • A minimal script that fetches Moonshots via /v2/moonshots (optionally filter by grade/signal/limit).
  • A UI pattern to render symbol, TM Grade, signal, reason/tags, and timestamp—plus a link to token details.
  • Optional one-liner curl to smoke-test your key.
  • Endpoints to add next: /v2/tm-grade (one-score ranking), /v2/trading-signals, /v2/hourly-trading-signals (timing), /v2/resistance-support (stops/targets), /v2/quantmetrics (risk sizing), /v2/price-prediction (scenario ranges).

Why This Matters

Discovery that converts. Users want more than price tickers—they want a curated, explainable list of high-potential tokens. The Moonshots API encapsulates multiple signals into a short list designed for exploration, alerts, and watchlists you can monetize.

Built for builders. The endpoint returns a consistent schema with grade, signal, and context so you can immediately sort, badge, and trigger workflows. With predictable latency and clear filters, you can scale to dashboards, mobile apps, and headless bots without reinventing the discovery pipeline.

Where to Find The Moonshots API

The cURL request for the Moonshots endpoint is displayed in the top right of the API Reference. Grab it and start tapping into the potential!

  1. Get API Key — generate a key and start free.
  2. Run Hello-TM — verify your first successful call.
  3. Clone a Template — deploy a screener or alerts bot today.
  4. Compare plans: Scale confidently with API plans.

How It Works (Under the Hood)

The Moonshots endpoint aggregates a set of evidence—often combining TM Grade, signal state, and momentum/volume context—into a shortlist of breakout candidates. Each row includes a symbol, grade, signal, and timestamp, plus optional reason tags for transparency.

For UX, a common pattern is: headline list → token detail where you render TM Grade (quality), Trading Signals (timing), Support/Resistance (risk placement), Quantmetrics (risk-adjusted performance), and Price Prediction scenarios. This enables users to understand why a token was flagged and how to act with risk controls.

Polling vs webhooks. Dashboards typically poll with short-TTL caching. Alerting flows use scheduled jobs or webhooks to smooth traffic and avoid duplicates. Always make notifications idempotent.

Production Checklist

  • Respect plan caps; batch and throttle in clients/workers.
  • Use exponential backoff with jitter on 429/5xx; capture request IDs.
  • De-duplicate alerts and downstream actions.
  • Use memory/Redis with short TTLs; pre-warm during peak hours.
  • Fetch in pages if supported; parallelize within limits.
  • Sort primarily by tm_grade or composite; surface reason tags to build trust.
  • Track p95/p99, error rates, and alert delivery success; log variants.
  • Store keys securely; rotate regularly.

Use Cases & Patterns

  • Bot Builder (Headless): Filter for tokens appearing in Moonshots with tm_grade ≥ X. Confirm entry with /v2/trading-signals; place stops/targets with /v2/resistance-support; size via Quantmetrics.
  • Dashboard Builder (Product): Moonshots tab with badges (Bullish, Grade 80+, Momentum). Token detail page with TM Grade, Signals, S/R, and Predictions for a complete decision loop.
  • Screener Maker (Lightweight Tools): Top-N list with Follow/alert toggles; export CSV. Include “New this week” and “Graduated” sections for churn/entry dynamics.
  • Community/Content: Weekly digest highlighting new entrants, upgrades, and notable exits—link back to your product pages.

Next Steps

  1. Get API Key — generate a key and start free.
  2. Run Hello-TM — verify your first successful call.
  3. Clone a Template — deploy a screener or alerts bot today.
  4. Compare plans: Scale confidently with API plans.

FAQs

1) What does the Moonshots API return?

A list of breakout candidates with fields such as symbol, tm_grade, signal (often Bullish/Bearish), optional reason tags, and updated_at. Use it to drive discover tabs, alerts, and watchlists.

2) How fresh is the list? What about latency/SLOs?

The endpoint targets predictable latency and timely updates for dashboards and alerts. Use short-TTL caching and queued jobs/webhooks to avoid bursty polling.

3) How do I use Moonshots in a trading workflow?

Common stack: Moonshots for discovery, Trading Signals for timing, Support/Resistance for SL/TP, Quantmetrics for sizing, and Price Prediction for scenario context. Always backtest and paper-trade first.

4) I saw results like “+241%” and a “7.5% average return.” Are these guaranteed?

No. Any historical results are illustrative and not guarantees of future performance. Markets are risky; use risk management and testing.

5) Can I filter the Moonshots list?

Yes—pass parameters like min_grade, signal, and limit (as supported) to tailor to your audience and keep pages fast.

6) Do you provide SDKs or examples?

REST works with JavaScript and Python snippets above. Docs include quickstarts, Postman collections, and templates—start with Run Hello-TM.

7) Pricing, limits, and enterprise SLAs?

Begin free and scale up. See API plans for rate limits and enterprise options.

Research

Support and Resistance API: Auto-Calculate Smart Levels for Better Trades

Token Metrics Team
4
MIN

Most traders still draw lines by hand in TradingView. The support and resistance API from Token Metrics auto-calculates clean support and resistance levels from one request, so your dashboard, bot, or alerts can react instantly. In minutes, you’ll call /v2/resistance-support, render actionable levels for any token, and wire them into stops, targets, or notifications. Start by grabbing your key on Get API Key, then Run Hello-TM and Clone a Template to ship a production-ready feature fast.

What You’ll Build in 2 Minutes

A minimal script that fetches Support/Resistance via /v2/resistance-support for a symbol (e.g., BTC, SOL).

  • A one-liner curl to smoke-test your key.
  • A UI pattern to display nearest support, nearest resistance, level strength, and last updated time.

Next Endpoints to add

  • /v2/trading-signals (entries/exits)
  • /v2/hourly-trading-signals (intraday updates)
  • /v2/tm-grade (single-score context)
  • /v2/quantmetrics (risk/return framing)

Why This Matters

Precision beats guesswork. Hand-drawn lines are subjective and slow. The support and resistance API standardizes levels across assets and timeframes, enabling deterministic stops and take-profits your users (and bots) can trust.

Production-ready by design. A simple REST shape, predictable latency, and clear semantics let you add levels to token pages, automate SL/TP alerts, and build rule-based execution with minimal glue code.

Where to Find

Need the Support and Resistance data? The cURL request for it is in the top right of the API Reference for quick access.

👉 Keep momentum: Get API Key • Run Hello-TM • Clone a Template

How It Works (Under the Hood)

The Support/Resistance endpoint analyzes recent price structure to produce discrete levels above and below current price, along with strength indicators you can use for priority and styling. Query /v2/resistance-support?symbol=<ASSET>&timeframe=<HORIZON> to receive arrays of level objects and timestamps.

Polling vs webhooks. For dashboards, short-TTL caching and batched fetches keep pages snappy. For bots and alerts, use queued jobs or webhooks (where applicable) to avoid noisy, bursty polling—especially around market opens and major events.

Production Checklist

  • Rate limits: Respect plan caps; add client-side throttling.
  • Retries/backoff: Exponential backoff with jitter for 429/5xx; log failures.
  • Idempotency: Make alerting and order logic idempotent to prevent duplicates.
  • Caching: Memory/Redis/KV with short TTLs; pre-warm top symbols.
  • Batching: Fetch multiple assets per cycle; parallelize within rate limits.
  • Threshold logic: Add %-of-price buffers (e.g., alert at 0.3–0.5% from level).
  • Error catalog: Map common 4xx/5xx to actionable user guidance; keep request IDs.
  • Observability: Track p95/p99; measure alert precision (touch vs approach).
  • Security: Store API keys in a secrets manager; rotate regularly.

Use Cases & Patterns

  • Bot Builder (Headless): Use nearest support for stop placement and nearest resistance for profit targets. Combine with /v2/trading-signals for entries/exits and size via Quantmetrics (volatility, drawdown).
  • Dashboard Builder (Product): Add a Levels widget to token pages; badge strength (e.g., High/Med/Low) and show last touch time. Color the price region (below support, between levels, above resistance) for instant context.
  • Screener Maker (Lightweight Tools): “Close to level” sort: highlight tokens within X% of a strong level. Toggle alerts for approach vs breakout events.
  • Risk Management: Create policy rules like “no new long if price is within 0.2% of strong resistance.” Export daily level snapshots for audit/compliance.

Next Steps

  • Get API Key — generate a key and start free.
  • Run Hello-TM — verify your first successful call.
  • Clone a Template — deploy a levels panel or alerts bot today.
  • Watch the demo: Compare plans: Scale confidently with API plans.

FAQs

1) What does the Support & Resistance API return?

A JSON payload with arrays of support and resistance levels for a symbol (and optional timeframe), each with a price and strength indicator, plus an update timestamp.

2) How timely are the levels? What are the latency/SLOs?

The endpoint targets predictable latency suitable for dashboards and alerts. Use short-TTL caching for UIs, and queued jobs or webhooks for alerting to smooth traffic.

3) How do I trigger alerts or trades from levels?

Common patterns: alert when price is within X% of a level, touches a level, or breaks beyond with confirmation. Always make downstream actions idempotent and respect rate limits.

4) Can I combine levels with other endpoints?

Yes—pair with /v2/trading-signals for timing, /v2/tm-grade for quality context, and /v2/quantmetrics for risk sizing. This yields a complete decide-plan-execute loop.

5) Which timeframe should I use?

Intraday bots prefer shorter horizons; swing/position dashboards use daily or higher-timeframe levels. Offer a timeframe toggle and cache results per setting.

6) Do you provide SDKs or examples?

Use the REST snippets above (JS/Python). The docs include quickstarts, Postman collections, and templates—start with Run Hello-TM.

7) Pricing, limits, and enterprise SLAs?

Begin free and scale as you grow. See API plans for rate limits and enterprise SLA options.

Disclaimer

This content is for educational purposes only and does not constitute financial advice. Always conduct your own research before making any trading decisions.

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