6 Best Crypto Data APIs in 2026

Choosing the best crypto data API in October 2026 comes down to matching your software project to the exact data layer you need. Crypto market data APIs provide spot prices and market data, while blockchain data APIs deliver wallet, token, and transaction data. Comparing providers turns on three core criteria: free tier allowances, rate limits, and starting paid subscription prices. Because providers structure quotas differently using credits, compute units, or points, raw numbers cannot be compared one to one without examining how each platform meters queries. Pricing, endpoint limits, and terms shift as vendors update plans, and this guide reflects published figures as of October 2026.

API choice by use case

No single platform serves as the best crypto data API for every technical architecture because market data services and on-chain data providers address entirely different requirements. If your application displays spot prices and market data, choose a crypto market data API like CoinGecko API, CoinMarketCap API, or CoinAPI. For general price feeds with a zero-cost setup, CoinGecko API provides 10,000 call credits per month on its Demo tier without requiring payment details. If your project demands multi-year historical price curves, CoinMarketCap API includes three years of historical data on its $29 per month Builder plan and complete all-time history on its $79 per month Startup tier. For applications requiring raw exchange data, order book feeds, or FIX protocol connectivity, CoinAPI lists market streaming backed by a 99.9% uptime SLA. When your software needs wallet, token, or transaction data, select an on-chain blockchain data API like Alchemy, Moralis, or Bitquery. Alchemy lists a node RPC API, webhooks, portfolio APIs, and token APIs, and grants 30 million compute units each month on its free tier across networks like Ethereum, Solana, Polygon PoS, and Base. For querying wallet, token, and transaction data across all supported networks, Moralis offers plans starting from $149 per month. For streaming and querying across multiple chains via GraphQL, Bitquery provides data for chains like Solana, Ethereum, Tron, and Arbitrum. Other data APIs exist in the broader market, including Crypto APIs, Tatum, Coinlayer, and DIA.

Market data versus on-chain data

Market data APIs provide crypto market data, spot prices, and historical records. Services like CoinGecko API track 22,312 coins shown on its site header to provide spot prices and market data. CoinAPI offers real-time and historical data via REST, WebSocket (trade, OHLCV, quote, and book on Pro), and FIX API interfaces. Blockchain data APIs provide wallet, token, and transaction data across supported networks. Alchemy lists a node RPC API plus data APIs across networks including Ethereum, Solana, BNB Smart Chain, Avalanche, Polygon PoS, Arbitrum, Optimism, Base, Starknet, ZKsync, Blast, and many more. Moralis provides endpoints for wallet, token, and transaction data across all its supported chains. Bitquery lists GraphQL and WebSocket streams, indexing 40+ chains, with core real-time coverage for Solana, Ethereum, Tron, Base, Arbitrum, Optimism, BSC, and Polygon.

Free tiers and rate limits

Free tier allowances and rate limit structures vary across providers, and each service uses its own metrics to measure usage. CoinGecko API offers a free Demo plan that provides 10,000 monthly call credits, a rate limit of 100 calls per minute, and access to over 60 endpoints without requiring a credit card, though users must display an attribution statement. CoinMarketCap API supplies 15,000 monthly call credits on its Basic free tier with a cap of 50 requests per minute, though its documentation does not publish the historical data depth available on this free plan. CoinAPI uses a Pay As You Go model that gives users $25.00 in free credits with metered billing, but hard-limited tiers return HTTP 429 status codes when daily quotas are exceeded and published materials omit per-minute rate limits. On-chain providers define free allowances using computational units rather than simple API call tallies. Alchemy includes 30 million compute units per month on its free tier, allowing up to 15 requests per second, 5 separate applications, and 5 webhooks across all supported mainnets and testnets, though Solana gRPC streaming is excluded. Moralis does not list a free tier on its public pricing page. Bitquery provides a 7-day free trial granting 1,000 API points without requiring a credit card, but users should note that Bitquery's pricing page contains conflicting plan pricing details between its feature cards and FAQ section. Because providers meter usage in different units like credits, compute units, or points, raw figures are not directly comparable.

Paid plans and overage

Paid plans differ by call allowance, rate limit and history depth. CoinGecko API paid plans start with the Basic tier at $35 per month, or $29 per month when billed yearly, which provides 100,000 monthly credits, 300 calls per minute, and two years of historical records. Its Analyst plan costs $129 per month for 500,000 credits, 500 calls per minute, real-time data freshness, and daily historical coverage dating back to 2013, scaling up to Lite at $499 per month for 2 million credits, Pro at $999 per month for 5 million to 15 million credits at 1,000 calls per minute, and custom Enterprise tiers. CoinGecko API charges an overage rate of $0.0005 per call on paid subscriptions when developers exceed their monthly allotments. CoinMarketCap API begins at $29 per month for its Builder plan with 150,000 credits, 300 requests per minute, and three years of historical data, moving to Startup at $79 per month for 450,000 credits, 600 requests per minute, and all-time history, Growth at $299 per month for 2 million credits, Professional at $699 per month for 5 million credits, and custom Enterprise tiers. For exchange-level market feeds, CoinAPI offers Startup at $79 per month, or $69 per month on an annual commitment, which provides 1,000 REST credits per day and WebSocket feeds for trades and OHLCV data. Its Streamer tier costs $249 per month ($199 annually) for 10,000 credits per day with trade, OHLCV, and quote streaming, while the Pro plan costs $599 per month ($499 annually) for 100,000 daily credits, full order book streaming, and FIX API integration. On the on-chain side, Alchemy offers a Pay As You Go tier priced at $0.525 per 1 million compute units, expanding throughput to start at 300 requests per second with 30 apps and 100 webhooks, backed by custom Enterprise options starting at 1,000 requests per second. Moralis starts at $149 per month billed annually for its Starter tier with 2 million compute units and 40 requests per second, Pro at $249 per month for 100 million compute units at 80 requests per second, Business at $749 per month for 500 million compute units at 200 requests per second, and Data Feeds Starter at $10 per month. Bitquery structures standard subscriptions on an annual billing schedule, starting with a Personal plan at $29 per month billed annually for 100,000 points and 30 requests per minute for non-commercial use, Pro at $69 per month billed annually for 1 million points and 90 requests per minute for commercial applications, and Scale at $199 per month billed annually for 5 million points and 240 requests per minute. However, Bitquery excludes historical records from its Personal, Pro, and Scale packages; accessing historical ledger information requires archive add-ons that start at $70 per month per individual blockchain. Bitquery's Enterprise tier provides custom access across all 25 public networks with complete history included.

Frequently asked questions

Sources

• ↗CoinGecko API official site
• ↗CoinMarketCap API official site
• ↗CoinAPI official site
• ↗Alchemy official site
• ↗Moralis official site
• ↗Bitquery official site

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