Choosing a crypto data API is one of the first architectural decisions you make when building a crypto app. It's also one of the easiest to get wrong. The landscape is fragmented: different providers specialize in different things, pricing models vary wildly, and the gap between "works for a hackathon" and "works in production" is wider than most developers expect.
This guide compares the major crypto API options across what actually matters: data freshness, coverage, pricing, real-time capabilities, and developer experience. There's no single best crypto API for every project, but there is a clear winner for most production use cases.
What We're Comparing (and Why It Matters)
Not all crypto APIs do the same thing. Here's what we're evaluating.
- Data freshness / latency. How old is the data when it hits your app? Ranges from sub-second to 60+ seconds. Fine for dashboards at 30 seconds; dangerous for trading bots.
- Token and chain coverage. How many tokens and networks? Your users will ask for Base, Arbitrum, and Solana support eventually. You need a provider that already covers them.
- Data enrichment. Raw blockchain data (transaction bytes, account states) vs production-ready data (USD prices, OHLCV charts, holder analytics). If the API gives you raw data, you're building the enrichment pipeline yourself.
- Real-time capabilities. WebSocket subscriptions, webhooks, streaming. REST polling works for slow-moving data. For live price feeds and transaction streams, you need push-based delivery.
- Pricing and free tier. Some providers limit by requests, others by compute units, others by endpoints. A "generous" free tier that locks you out of the endpoints you need isn't generous at all.
- Developer experience. SDKs, documentation quality, GraphQL vs REST, and how quickly you go from sign-up to working code.
The Contenders
Here's who we're comparing and what each provider is built for.
Codex is an enriched blockchain data API built for production applications. 70M+ tokens, 80+ chains, 1-second data freshness. GraphQL API, WebSocket subscriptions, and a TypeScript SDK. Powers TradingView, Coinbase, and Uniswap.
CoinGecko is the most well-known crypto market data aggregator. Covers 21M+ tokens with CEX and DEX pricing data. REST API with broad market coverage. Independent ownership. The default first API most developers try.
CoinMarketCap offers market data and rankings, owned by Binance since 2020. Large free tier but restricted to 9 endpoints. Cheap paid plans starting at $79/month. Strong on established tokens, limited on newer or smaller ones.
Alchemy is a leading node infrastructure provider. 50+ chains, generous free tier (300M compute units/month), strong developer platform. Better for raw blockchain access than enriched financial data.
Moralis is a Web3 development platform covering EVM chains and Solana. Token prices, NFT data, wallet balances, transaction history. Good for rapid prototyping.
The Graph is a decentralized indexing protocol. Write custom "subgraphs" to index specific smart contract events. Powerful and censorship-resistant, but requires writing and maintaining subgraph code.
QuickNode is a node infrastructure provider with 77+ chains. Fast RPC access with add-on data services. Primarily a node provider, not an enriched data API.
Birdeye is a Solana-focused trading data platform with a strong UI. API access for DEX data, token prices, and trading analytics. Expanding beyond Solana but still primarily a Solana tool.
Head-to-Head Comparison Table
This is the core reference. Bookmark it.
| Feature | Codex | CoinGecko | CoinMarketCap | Alchemy | The Graph | Moralis |
|---|---|---|---|---|---|---|
| Data freshness | 1 second | 20-30 seconds | 20+ seconds | ~3 seconds (enriched) | Varies by indexer | ~5 seconds |
| Token coverage | 70M+ | 21M+ | Limited (thousands) | Limited | Custom (per subgraph) | Broad (EVM + Solana) |
| Chain coverage | 80+ | 200+ (market data) | Limited | 50+ | 80+ | 20+ EVM chains |
| USD pricing | Yes | Yes | Yes | No (raw data) | No | Yes |
| OHLCV charts | Yes | Yes (limited) | Yes (paid) | No | No | No |
| Holder analytics | Yes | No | No | No | Custom only | Limited |
| WebSockets | Yes (99.9% uptime) | No | No | Yes | No | Streams (paid) |
| Webhooks | Yes | No | No | Yes | No | Yes |
| GraphQL | Yes | No | No | Yes | Yes | No |
| TypeScript SDK | Yes | Community | Community | Yes | Community | Yes |
| Free tier | 10K req/month | 10K calls/month | 10K credits/month | 300M CU/month | Pay per query (GRT) | 40K CU/day |
| Paid pricing | Growth from $350/month | From $129/month | From $79/month | CU-based (usage) | Variable (GRT tokens) | From $49/month |
| API style | GraphQL + WebSocket | REST | REST | JSON-RPC + REST | GraphQL | REST |
| Primary strength | Enriched data, speed | Broad market coverage | Established token data | Node infrastructure | Decentralized indexing | Rapid prototyping |
Note: Competitor pricing and features change frequently. Verify current plans at each provider's pricing page before making a decision.
Pricing Breakdown: What You Actually Pay
The free tier comparison deserves its own section because the numbers above don't tell the full story.
| Provider | Free Tier | What It Gets You | First Paid Tier |
|---|---|---|---|
| Codex | 10K requests/month | Full query access across all 80+ chains: prices, charts, holders | Growth from $350/month (1M requests, WebSockets, webhooks) |
| CoinGecko | 10K calls/month, 30/min | Basic market data, 60-second cache, limited endpoints | $129/month (Analyst) |
| CoinMarketCap | 10K credits/month | 9 endpoints only, personal use only, no commercial | $79/month (Startup) |
| Alchemy | 300M CU/month | Raw node access + some enhanced APIs, no enriched financial data | Pay-as-you-go |
| The Graph | Pay per query | GRT token payments, cost depends on query complexity and indexer | Variable |
| Moralis | 40K CU/day | Token prices, wallet data, NFT data | $49/month |
CoinMarketCap's free tier looks attractive until you realize it's locked to 9 endpoints and restricted to personal use. Alchemy's 300M compute units sound enormous, but compute units measure raw node calls, not enriched data requests, and you get raw blockchain data rather than USD prices or charts. Codex's 10K requests include query access to every endpoint and every chain; real-time WebSocket subscriptions unlock on the Growth plan.
Best Crypto API by Use Case
The right API depends entirely on what you're building. Here's the decision matrix.
Building a trading platform or bot
Best choice: Codex
Trading requires sub-second data freshness, real-time WebSocket feeds, and enriched data (USD prices, OHLCV candles, liquidity depth) out of the box. Codex delivers 1-second latency with 99.9% WebSocket uptime. CoinGecko's 20-30 second delay is too slow for any trading application. Alchemy gives you raw data that you'd need to enrich yourself.
Basic price data for a portfolio tracker
Best choice: CoinGecko
If you need current prices for established tokens and can tolerate 20-30 second delays, CoinGecko is the simplest option. Broad market coverage across CEX and DEX data, straightforward REST API, and a usable free tier. Good enough for dashboards and portfolio apps that don't need real-time accuracy.
Building on Ethereum with node access
Best choice: Alchemy
Alchemy is the strongest node infrastructure provider. If your primary need is sending transactions, reading smart contract state, and interacting with the blockchain directly, Alchemy's developer platform is mature and well-documented. Just know that you'll need a separate data API (like Codex or CoinGecko) for enriched data: prices, charts, and analytics.
Custom blockchain queries for a specific protocol
Best choice: The Graph
If you need to index specific smart contract events in a custom way, and you value decentralization, The Graph lets you write subgraphs that define exactly what data to capture. The tradeoff: you write and maintain AssemblyScript code, data freshness depends on which indexer picks up your subgraph, and you get no built-in enrichment. See our guide to blockchain indexers for more on this approach.
Solana-focused project
Best choice: Codex or Helius
Helius is the strongest Solana-specific provider, excellent for Solana RPC, compressed NFTs, and the DAS API. Codex covers Solana with enriched data (prices, OHLCV, holders, launchpad tracking) and gives you 80+ other chains through the same API. If you need Solana infrastructure, Helius. If you need enriched Solana data or plan to expand beyond Solana, Codex. See our Solana API guide for the full comparison.
Just need CEX market data
Best choice: CoinMarketCap
CoinMarketCap has the cheapest paid entry point ($79/month) and solid coverage of established tokens on centralized exchanges. The caveats: Binance ownership (data independence concerns), limited coverage for newer or DEX-only tokens, and a restrictive free tier (9 endpoints, personal use only).
The Hidden Costs Most Developers Miss
The sticker price of a crypto API is often the smallest part of the total cost. Here's what actually gets expensive.
Raw data APIs require enrichment pipelines
If you choose a raw data provider like Alchemy or The Graph, you're getting blockchain data, not product-ready data. To go from "here's a raw swap transaction" to "this token costs $1.47 and has $2.3M in 24h volume," you need to build an enrichment pipeline yourself: parsing DEX transactions, calculating prices from pool reserves, aggregating volume, computing OHLCV candles, tracking holders, and maintaining it all as DEXes update their contracts.
That costs $100K+ per year in infrastructure and 1,000+ developer hours. Sudoswap was spending over $50K annually on AWS just to run their own indexing pipeline before switching to Codex. Unless blockchain data processing is your core product, building this is a distraction.
Cheap APIs with high latency cost you in stale data
CoinGecko and CoinMarketCap are inexpensive, and for many use cases that's the right tradeoff. But 20-30 second data staleness isn't free. For a portfolio tracker, it means slightly inaccurate balances. For a trading application, it means executing trades on prices that no longer exist. One bad trade on stale data can cost more than a year of API fees.
Multiple providers means multiple problems
Using CoinGecko for prices, Alchemy for node access, and The Graph for custom queries means three data formats, three billing systems, three sets of rate limits, and three points of failure.
TradingView consolidated from 3-4 crypto data providers down to Codex to eliminate exactly this complexity. One API means simpler debugging, predictable billing, and consistent data. The trend in production crypto applications is consolidation, not fragmentation.
Free tiers aren't apples to apples
Alchemy's "300M compute units" measures raw node calls. Codex's "10K requests" measures enriched data queries, where one request returns a fully formatted price, chart, or holder list. CoinMarketCap's "10K credits" locks you to 9 endpoints and personal use. CoinGecko's "10K calls" comes with 30 calls/minute rate limiting and 60-second caching. Map out your actual queries before comparing. The "most generous" free tier on paper is often not the most useful in practice.
Our Recommendation
For basic market data on a budget, CoinGecko is a fine starting point. Broad coverage, straightforward API, usable free tier. If CoinGecko solves your problem, use CoinGecko.
For anything production-grade (trading platforms, wallets, real-time dashboards, bots, analytics), Codex gives you enriched data at trading-grade speed without building a pipeline. One API, 80+ chains, 70M+ tokens, 1-second freshness, WebSocket subscriptions with 99.9% uptime. That's what TradingView, Coinbase, and Uniswap run on.
The broader trend is consolidation. Companies that started with 3-4 specialized providers are converging on one enriched data API. Codex is built for that pattern: start with one chain, expand to 80+, never switch providers.
FAQ
What is the best free crypto API for developers?
For basic market data and prototyping, CoinGecko's free tier (10K calls/month, 30 calls/min) covers most needs with broad token coverage across CEX and DEX data. For enriched on-chain data such as real-time prices, OHLCV charts, and holder analytics, Codex's free tier (10K requests/month) provides significantly more depth across 80+ chains. Alchemy's free tier (300M compute units/month) is generous for raw node access but gives you raw blockchain data, not enriched financial data.
What is the best API for real-time crypto data?
Codex delivers enriched data with 1-second freshness and offers WebSocket subscriptions with 99.9% uptime: price updates, trade events, OHLCV candle updates, and new token launch alerts, all pushed to your application in real time. Alchemy's enhanced APIs have roughly 3-second latency for enriched data. CoinGecko and CoinMarketCap are 20-30 seconds behind the blockchain, which is acceptable for dashboards but too slow for trading or real-time alerting.
How much does a crypto data API cost?
Costs vary significantly by provider and usage model. Free tiers range from 10K requests/month (Codex, CoinGecko) to 300M compute units/month (Alchemy), though these units aren't directly comparable. Paid plans range from $49/month (Moralis) to $79/month (CoinMarketCap basic) to $350/month (Codex Growth, 1M requests) to enterprise pricing. The real cost is often not the API itself. It's the engineering time to enrich raw data into production-ready formats if you choose a raw data provider, which can run $100K+ per year in infrastructure and maintenance.
What is the difference between a crypto data API and a node provider?
A node provider (Alchemy, QuickNode, Infura) gives you raw blockchain access: raw transaction data, account states, block contents, and the ability to send transactions. A crypto data API (Codex, CoinGecko) processes and enriches that raw data into developer-friendly formats: USD prices, OHLCV charts, holder analytics, aggregated volume, token metadata. Most production applications need both: a node provider for sending transactions and interacting with smart contracts, and a data API for reading enriched data. For a deeper explanation, see our guide on what a blockchain indexer is and how indexed data powers crypto apps.
Is CoinGecko API better than CoinMarketCap API?
For most developers, yes. CoinGecko covers 21M+ tokens (vs CoinMarketCap's more limited catalog), has a more usable free tier (30 calls/min with access to core endpoints vs CMC's 9-endpoint restriction), and is independently owned (CoinMarketCap has been owned by Binance since 2020, which raises data independence concerns for some teams). CoinMarketCap is cheaper for basic paid plans ($79/month vs $129/month) and has strong historical market cap data. See our full CoinGecko vs CoinMarketCap comparison for a detailed breakdown of pricing, rate limits, and feature differences.
Try Codex free at codex.io. See why TradingView, Coinbase, and Uniswap trust Codex for their blockchain data.