Best Blockchain APIs for Freelancers of 2026

MindCloud

MindCloud can incorporate supported blockchain APIs into broader application and data workflows. Connect API-accessible blockchain services with databases, business applications, reporting tools, and operational systems; transform returned data; and automate downstream actions. MindCloud provides the integration and orchestration layer rather than a blockchain network, exchange, wallet, or blockchain data provider.

83 Ratings

Starting Price: $625/month

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WalletIDs.net

Issue Blockchain Wallet Addresses — Instantly and Free! WalletIDs.net is a non-custodial Wallet-as-a-Service platform that enables developers to programmatically generate HD wallets across major blockchain networks including Ethereum, Bitcoin, Polygon, BNB Chain, Solana, Tron, Arbitrum, Optimism, and more. With a simple REST API, issue unlimited master wallets and derive unique payment addresses per customer order — ideal for e-commerce and crypto payment processing. Features include real-time balance monitoring, webhook notifications for incoming payments, and support for thousands of ERC-20/BEP-20 tokens. Wallet creation is always free. (Optional encrypted key backup available at $1/currency/month.) Key Features: • HD wallet generation (BIP32/BIP44) • Per-order derived addresses • Balance monitoring with webhooks • Multi-network support

Starting Price: $1/currency/month

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Quicknode

Quicknode is an enterprise-grade blockchain development platform that helps teams build, launch, and scale high-performance applications. Developers gain fast and reliable access to more than 80 chains with 99.99 percent uptime, along with real-time data, automation tools, and a unified suite of APIs designed for production. Used by leading companies across Web3 and traditional industries, Quicknode accelerates development with consistent performance, clear pricing, and a platform built for growth. From startups to global brands, teams choose Quicknode to ship faster and build without compromise.

40 Ratings

Starting Price: Free

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Venly

Venly is a blockchain technology provider that creates tools and products to help companies benefit from blockchain technology. We provide a complete technology stack to bring brands, apps, games and platforms into Web3. We offer wallets, marketplaces, and NFT tools to help businesses integrate web3 tech & onboard users seamlessly. Our solutions provide a familiar Web2 experience to make blockchain accessible for both developers and users alike. Venly empowers the use of blockchain, by providing trusted and easy-to-use software solutions. We are making blockchain accessible for everyone. Products and services include: WALLET SOLUTIONS → Instant Web3 Wallets for Your Users MARKETPLACE SOLUTIONS → NFT Marketplace Built for the Mainstream NFT TOOLS → Your Complete NFT Toolkit SHOPIFY NFT APP → Sell NFTs in Your Shopify Store WEB3 GAMING TOOLKIT → Make Your Game Web3 Ready

33 Ratings

Starting Price: $0/month

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GetBlock

GetBlock is a service that provides instant API connection to full nodes from many leading blockchain networks, including BNB Smart Chain (BSC), Ethereum (ETH), Polygon (MATIC) and Solana (SOL), among others. Since 2019, the mission of GetBlock is to ensure cost-effective tools and infrastructure that will help enterprises and individual developers to build high-quality blockchain applications faster. The service allows you to request on-chain information from a node without the need to set up one manually. GetBlock is among the leaders of the Blockchain-as-a-Service (BaaS) segment: its instruments are utilized daily by thousands of users worldwide. Their clients can get their wallets, DEXs, trading bots, games to 50+ blockchains via an intuitive API-powered dashboard.

14 Ratings

Starting Price: $29

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Coinbase

Coinbase is the easiest place to buy, sell, and manage your cryptocurrency portfolio. Jump start your crypto portfolio with $30 in free Bitcoin after you sign up and make a $20 purchase. Terms apply. Discover how specific cryptocurrencies work — and get a bit of each crypto to try out for yourself. Coinbase has a variety of features that make it the best place to start trading. Buy and sell popular digital currencies, keep track of them in the one place. Invest in cryptocurrency slowly over time by scheduling buys daily, weekly, or monthly. For added security, store your funds in a vault with time delayed withdrawals. Stay on top of the markets with the Coinbase app for Android or iOS. We store the vast majority of the digital assets in secure offline storage. Cryptocurrency stored on our servers is covered by our insurance policy. Coinbase supports a variety of the most popular digital currencies.

10 Ratings

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Moralis

Moralis Web3

Moralis is the fastest path from idea to mass-scale dApp, letting you focus on great experiences rather than heavy lifting. Save time + cost of building your own back-end infrastructure and use our fully managed, infinitely scalable enterprise-grade infrastructure — with one snippet of code. Sync all your users and smart contracts straight into your Moralis Database. All on-chain transactions are instantly reflected in the database. It’s like magic. No more fear of being locked into one platform or blockchain solution. Moralis lets you easily integrate with an endless array of external projects, chains, and technologies — for ultimate extensibility. Moralis platform components that supercharge and extend what you’ve already built, or add entirely new components from Moralis to fill in what you’re missing. Ultimate flexibility and zero lock-in.

14 Ratings

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NOWNodes

NOWNodes is a blockchain infrastructure provider that gives developers and businesses API-based access to blockchain nodes without the need to deploy, sync, or maintain them independently. The platform supports 120+ networks, including Bitcoin, Ethereum, BNB Smart Chain, Solana, and Polygon, through shared and dedicated node options. Beyond core RPC access, NOWNodes offers WebSocket connections, Blockbook indexing, archive data, Trace/Debug methods, gRPC streaming, and a Market Data API covering 9,000+ cryptocurrencies. Its infrastructure powers wallets, exchanges, dApps, and trading tools, with customers and integrations including Trust Wallet, ChangeNOW, and Exodus.

4 Ratings

Starting Price: €20

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Bitquery

Our DEX GraphQL APIs provide real-time trades for multiple DEX protocols across different blockchains. You can access trade data for protocols like Kyber, Uniswap, 0x, Balancer protocol, PancakeSwap, etc. Based on DEX trade data, you can build charting, analytics, find arbitrage opportunities, or analyze DEX markets. Bitquery is a set of software products that parse, index, and store blockchain data in a unified way. Market analytics for specific projects and industry trends in different blockchain networks. Money flow analysis for blockchain investigation and compliance, find origin and destination of funds. Decentralized Finance (DeFi) protocols APIs and analytics. Scientific research for blockchain development.

4 Ratings

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Blockdaemon

Blockdaemon is the institutional gateway to Web3, securing over $110B in digital assets for 400+ institutions, including exchanges, custodians, crypto platforms, and financial enterprises. We offer institutional-grade blockchain infrastructure spanning nodes, APIs, DeFi, staking, MPC wallets and vaults. Since 2017, our globally distributed infrastructure ensures unrivaled security, compliance, and scalability.

1 Rating

Starting Price: $0/month

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Tatum

The fastest and easiest blockchain development platform. Unified framework for 40+ blockchain protocols and thousands of digital assets. A single, unified Javascript SDK, for over 40+ blockchain protocols. Simplify your development and integrate any blockchain directly into your JavaScript backend. Create and sell NFTs directly within your WooCommerce site. The plugin is completely free and can be set up within minutes. An open-source key management system for the most secure storing your private keys, mnemonics, and signing transactions on-premise. A command line interface to interact with blockchains. Access our infrastructure via REST API with unified commands across all supported blockchains. All blockchains are unified into one simple SDK. Effortlessly develop apps on any supported blockchain with no previous blockchain experience.

1 Rating

Starting Price: $9 per month

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Tokenview

We have provided blockchain data API customization and node building services for 2000 + enterprises. Through stable and fast data interface, real-time access to blockchain data, we can help our customers to save the cost of node setup, blocks synchronization, storage occupation, operation and maintenance. It provides the convenience for the development of related blockchain applications. For premium customers, Tokenview provides customized services such as historical data retrieval of public chains, warnings of suspicious transfers for financial institutions, and wallet services etc. Multi-Crypto Blockchain Data APIs is the blockchain data API interfaces launched by Tokenview, which provides structured chain data, wallet service, large transfer alert, address monitoring and so on.

1 Rating

Starting Price: $99 per 300 requests

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OnFinality

OnFinality is a blockchain infrastructure platform that saves web3 builders time and makes their lives easier. OnFinality delivers scalable API endpoints for the biggest blockchain networks and empowers developers to automatically test, deploy, scale and monitor their own blockchain nodes in minutes. To date, OnFinality has served over 300 billion RPC requests across 70 networks including Polkadot, Ethereum, Moonbeam, Astar, Avalanche and Cosmos, and is continuously expanding these mission-critical services so developers can build the decentralised future, faster! Build Smarter with OnFinality.

1 Rating

Starting Price: $0 per user per month

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SoChain

SoChain is a blockchain explorer that crypto users can use to explore the Bitcoin blockchain and other blockchains. SoChain also offers APIs. SoChain's fast blockchain API is the easiest, most cost-effective way to build applications on Bitcoin, Litecoin, Dogecoin, Zcash, and Dash. We also offer Test Networks for developers to get started in a sandbox environment. Currency is just the first application of the Blockchain, and there's alot more to come. We're helping you make the future happen. This API is fast, and free. If you'd like to see more features, or if you need an obscenely large number of API calls, talk to us. We're happy to help. Accessing the SoChain API is simple. Whichever programming language you use, you can call our REST API using any HTTP adapter. For accessing this API using Ruby or Ruby on Rails, we recommend using the HTTPClient gem.

1 Rating

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Etherscan

Etherscan is the leading Blockchain Explorer, Search, API and Analytics Platform for Ethereum, a decentralized smart contracts platform. Built and launched in 2015 it is one of the earliest and longest running independent project built around Ethereum and its community with the mission of providing equitable access to blockchain data.

1 Rating

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Ethplorer

Portfolio tracking, address and transactions tags and notes, watch service notifications, and crypto accounting. Track address portfolios for any Ethereum address with comprehensive balance charts and transactions. View balances, trading volumes, operations and transfers per token, per day. Tag and note any transaction, address, or even tokens. Use it as an easy tool for your crypto accounting with no registration required. Export the transaction history for any address tags /notes as a CSV file with historical prices. Explore marketing possibilities with token API and display widgets. Track an infinite number of Ethereum addresses and tokens, with industry-first Bulk API monitor. An all-in-one platform for the world of the Ethereum blockchain. View historical balances of holdings in USD. Receive email or telegram updates for any incoming or outgoing transaction from any address with watching service.

1 Rating

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Onmeta

Onmeta (onmeta.in) provides world’s quickest on and off ramp solutions (API/widget integration) to web3 dapps to help them improve their user experience and accelerate their adoption by mainstream users. Now, process the on & off ramp payments in <60 seconds with Onmeta's solutions. Currently, it is the only service provider supporting INR fiat on and off ramp and supports 5000+ tokens across Polygon, Ethereum, BNB, Arbitrum, Avalanche & Fantom blockchains with work underway for supporting 20+ blockchains and 5+ emerging markets fiat currencies by end of this year. It has 15+ dApps currently using its solution.

1 Rating

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Crypto APIs

Crypto APIs is a trusted Web 3 infrastructure provider for crypto applications and dApps, offering the easiest way to interact with 30+ blockchain networks via 100+ REST APIs. The suite includes Node as a Service, Dedicated Nodes, Blockchain Data (Address Latest, Address History, Block Data, Contracts, Transactions Data), Blockchain Events with notifications under 100ms, Blockchain Fees, Broadcast Transactions, Prepare Transactions, HD Wallets Management, Blockchain Utils, Transaction Simulator and Market Data. Unified REST endpoints and SDKs enable seamless one-time integration across mainnets and testnets. With 25ms average processing time, 25,000+ rq/s and 100+ TB of data, Crypto APIs is enterprise-ready and trusted by 500+ companies including Ledger, Nexo, CoolWallet, CoinStats and Swyftx. ISO/IEC 27001:2013 certified.

Starting Price: $40 per month

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Anyblock

Anyblock Analytics

Anyblock’s Software-as-a-Service (SaaS) provides Blockchain JSON-RPC Access for Bitcoin, Ethereum & more. We use a fast and reliable blockchain API, query time is usually less than 100 ms. Load-balanced with multiple nodes. Parity/OpenEthereum & Besu clients for Ethereum. Amazing support. Quick and personal responses. Technical advice with code samples. Extensive documentation: API, tutorials, FAQs, ...

Starting Price: €199/month

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Alchemy

Alchemy gives teams the blockchain infrastructure they need to build and scale onchain products without running node infrastructure themselves. Through APIs, RPC endpoints, webhooks, and developer tools across 100+ chains, Alchemy provides reliable access to blockchain data and transaction execution for apps, trading platforms, fintech products, AI agents, and more. Teams use Alchemy to ship faster, troubleshoot issues sooner, and run production workloads with the reliability and performance serious blockchain applications demand.

Starting Price: $49 per month

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Blockchair

The Blockchair API offers developers, researchers, and businesses the ability to tap into data from 17 distinct blockchains. This API is equipped with a range of analytical tools, enabling tasks such as filtering, sorting, and data aggregation, all while maintaining impressive uptime. Blockchair stands out as the pioneer in merging various blockchains into a single search interface. In contrast to many other blockchain explorers and crypto entities, Blockchair prioritizes user privacy by refraining from gathering personal data and ensures it isn't distributed to external analytics firms or advertising networks.

Starting Price: 25$

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Stellar

Stellar Development Foundation

Stellar makes it possible to create, send, and trade digital representations of all forms of money: dollars, pesos, bitcoin, pretty much anything. It’s designed so all the world’s financial systems can work together on a single network. Stellar's API and SDKs are ready to help you transform the world of finance, and the network’s currency connections could give even a small company the power and reach of an international bank. Leverage the many currency-backed tokens already on the Stellar network. Use Stellar's built-in decentralized exchange for crypto, forex, or securities. Users can swap between tokens using simple functions built into the protocol. Leverage the Stellar Disbursement Platform (SDP) to initiate and disburse bulk payments that move in real-time and settle instantly 24/7/365 with full certainty of funds delivery. Stellar has the documentation, tooling, and support to help you get your project up quickly.

Starting Price: $0

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Infura

Infura's world-class infrastructure will ensure your decentralized application scales to meet your user demand. Connect your app immediately with our instant access APIs. We support JSON-RPC over HTTPS & WebSocket interfaces, providing request and subscription-based connections. Start using Infura with a single URL. Our 24/7 team of experts is ready to handle all network changes and upgrades so you can focus on building your applications. We believe in a future powered by decentralized networks and protocols. We provide world-class infrastructure for developers so you can spend your time building and creating. You can find valuable insights, add applications, and more through our Infura dashboard. Need help or have questions? Get answers in our active community, up-to-date status page, or dig directly into our expanding library of documentation.

Starting Price: $50 per month

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Kaleido

Create blockchain and digital asset solutions without the cost and complexity of building from scratch. Start small and rapidly move into production. Choose from popular cloud properties and hybrid deployment options, geographic regions, protocols, consensus mechanisms and more, all at the click of a button. Makes blockchain just another endpoint so you can accelerate development and deployment of your dapps. A robust, easy-to-use interface to manage everything about your blockchain networks and environments. Onboarding and scaling are built-in and instantaneous with automated tools and workflows so you can grow your business network with ease. Nodes, data and key materials are managed individually by each member. Scale the network with ease using distributed network ownership or single proxy operator. Manage your networks and memberships, users, environments, and more.

Starting Price: $‍ 0.15 per node per hour

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Factom Harmony Connect

Factom

Providing enterprise customers a blockchain-based data registry and verifiable credential model in order to make data and processes independently verifiable. With blockchain, you can create entries to prove that data existed in a certain state at a certain time. From that point on, anyone with access to the data can verify it against the blockchain version. Future changes to the data will show up like a sore thumb and can be detected quickly by any Connect-enabled system. The Factom blockchain creates immutable evidence by publishing timestamped evidence of your data and documents, preventing costly disputes. Evidence is preserved permanently on the Factom blockchain, ready to review whenever you need to prove validity. The Factom blockchain provides a strong public witness. As entries are agreed upon by the growing network of computers running the protocol, the witness to their proofs becomes irrefutable.

Starting Price: $100 per month

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WatchData

WatchData provides simple and reliable API access to Ethereum blockchain. Among the advantages offered by WatchData are: - Data reliability - Uninterrupted connection with no downtime - Process automation - High limits that suit any user - Support for various nodes - Resource scaling -High processing speeds

Starting Price: $72 per month

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Transpose

Chainalysis

Our REST API is built to support realtime use cases and handle massive parallelization - retrieving data like NFT Sales, ERC20 token balances and DEX swaps has never been easier. Our SDK lets you easily access all this data directly in your production environment in just a couple lines of code. Rapidly craft more complex queries and transformations for complete data ingestion flexibility. Join across tables to power more complex use cases like retrieving PnL leaderboards derived from NFT sales data, smart floor prices for a list of collections or the USD-equivalent balance of a wallet’s ERC20 holdings at any point in history. Serverless snippets that can integrate with external data sources and perform transformations that aren’t easily doable with direct SQL. Access Transpose directly from your frontend to power production UIs. Real time, ultra low latency queries let you get the data your customers need to them as fast as possible.

Starting Price: $99 per month

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BlockSpan

BlockSpan is an NFT API platform for software companies developing on the blockchain. We aggregate data from multiple chains and provide an API layer to allow NFT developers to retrieve token prices, current ownership, and metadata including cached images in real time. Supporting multiple blockchains, or switching chains, doesn't have to be difficult. You can stop scraping block logs and write a simple rest API integration instead. More than just transaction data, our API returns price, current owner, metadata, and more. Ethereum, Polygon, Arbitrum, and Optimism supported today, with more coming soon. We've written extensive documentation for each endpoint that includes an interactive API console. Our NFT API includes token metadata and cached image urls, saving making API and IPFS calls to fetch that data.

Starting Price: $49 per month

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NFTPort

Bring your NFT application to market in hours instead of months. We take care of the NFT infrastructure so you can focus on your application. Built by developers, for developers. Grasping Solidity, Web3.js, GraphQL, nodes, IPFS, etc. is hard, time-consuming and usually needs a team to cover all of the skills. Teams waste 25-50% of engineering resources managing nodes, developing indexers, etc. as they try to reinvent the wheel. Using heavily rate-limited, slow and incomplete APIs slow you down in an extremely competitive market, leading to losing users and revenue.

Starting Price: $49 per month

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Blast

Solving Web3 reliability and performance issues by efficiently employing the resources of hundreds of third-party node providers combined with a state-of-the-art decentralized blockchain API platform and an improved user experience. Start building on the most relevant blockchain projects in the Web3 world. Aiming at providing one of the most resilient decentralized infrastructure services and the fastest response times in the industry, Blast is making use of clustering mechanisms and third-party node geographical distribution in order to help Web3 developers in getting their infrastructure needs covered easily and allow them to focus solely on the development of their applications. Scaling is simply done by allowing more Node providers into our network. Good node behavior is enforced within our protocol by performing periodic checks and applying coercive measures for nodes that underperform, like slashing staked tokens or exclusion from the network.

Starting Price: $50 per month

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Best Blockchain APIs for Freelancers

Compare the Top Blockchain APIs for Freelancers as of November 2026

What are Blockchain APIs for Freelancers?

MindCloud

WalletIDs.net

Quicknode

Venly

GetBlock

Coinbase

Moralis

NOWNodes

Bitquery

Blockdaemon

Tatum

Tokenview

OnFinality

SoChain

Etherscan

Ethplorer

Onmeta

Crypto APIs

Anyblock

Alchemy

Blockchair

Stellar

Infura

Kaleido

Factom Harmony Connect

WatchData

Transpose

BlockSpan

NFTPort

Blast

Best Blockchain APIs for Freelancers

Compare the Top Blockchain APIs for Freelancers as of November 2026

What are Blockchain APIs for Freelancers?

MindCloud

WalletIDs.net

Quicknode

Venly

GetBlock

Coinbase

Moralis

NOWNodes

Bitquery

Blockdaemon

Tatum

Tokenview

OnFinality

SoChain

Etherscan

Ethplorer

Onmeta

Crypto APIs

Anyblock

Alchemy

Blockchair

Stellar

Infura

Kaleido

Factom Harmony Connect

WatchData

Transpose

BlockSpan

NFTPort

Blast

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