Crypto Wallets: The Top Crypto APIs Services They Rely On

Crypto wallets are at the heart of the blockchain revolution, acting as secure storage and transaction portals for digital assets. Whether you’re a seasoned blockchain developer or a business looking to integrate crypto functionality, you’ll need the right services to succeed in this fast-paced ecosystem. Crypto APIs offers a comprehensive suite of solutions, supporting everything from real-time blockchain data to transaction processing and key management. In this post, we’ll explore how crypto wallets can tap into Crypto APIs’ offerings to build robust, feature-rich, and scalable products.

Table of Contents

• Why Crypto Wallets Need Specialized APIs
• Most Relevant Services from Crypto APIs
  
  • Address Latest & Address History
  • Blockchain Events & Transactions Data
  • Prepare Transactions & Broadcast Transactions
  • NFT & Token Endpoints
• Real-World Use Cases for Crypto Wallets
• Technical Insight: How to Integrate Crypto APIs
• Fully Customizable Enterprise Plans
• Conclusion & Next Steps

Why Crypto Wallets Need Specialized APIs

Crypto wallets aren’t merely user interfaces that display a balance. They play a crucial role in storing private keys, facilitating transactions, and ensuring security. Yet, building each wallet functionality from scratch—like generating addresses, tracking transaction confirmations, and implementing secure key management—can be tedious and error-prone.

By using specialized APIs like those from Crypto APIs, wallet providers can:

• Speed up development by leveraging pre-built infrastructure
• Guarantee reliability and scalability for spikes in usage
• Access advanced blockchain features (e.g., NFT integration or multi-chain support)
• Stay up-to-date with protocol changes and industry best practices automatically

From a business decision-making standpoint, specialized blockchain APIs reduce operational overhead, minimize security risks, and let you focus on creating value-added services rather than reinventing the wheel. On the developer side, these APIs streamline workflows and allow teams to spend time optimizing their product instead of dealing with complex blockchain nuances.

Most Relevant Services from Crypto APIs

Address Latest & Address History

What They Are

• Address Latest: Instantly fetch the most up-to-date balance and transaction count for any blockchain address.
• Address History: Retrieve the entire on-chain transaction history associated with a specific address.

How They Help

• Instant, Accurate Balances: Show real-time balances every time users open the wallet.
• Transaction Transparency: Provide a full overview of past transactions for insights and auditing.

Use Case Example
A multi-chain wallet can show current balances and let users explore full transaction histories across supported blockchains.

Blockchain Events & Transactions Data

What They Are

• Blockchain Events: Real-time triggers for on-chain activities (deposits, transfers, contract interactions).
• Webhooks & Notifications: Push notifications that eliminate the need for constant polling.

How They Help

• Real-Time Updates: Notify users the moment a transaction is confirmed.
• Enhanced UX: Use alerts for deposits, transfers, or unusual activity.
• Efficient Monitoring: Reduce load on infrastructure while maintaining responsiveness.

Use Case Example
Configure alerts to notify users when a deposit is confirmed on-chain, improving transparency and trust.

Prepare Transactions & Broadcast Transactions

What They Are

• Prepare Transactions: Generate and structure transactions for secure signing.
• Broadcast Transactions: Submit signed transactions to the blockchain.

How They Help

• Streamlined Flow: Automate transaction drafting and signing.
• Security: Integrate key management for safe private key handling.
• Unified Process: Handle multiple asset types with a single interface.

Use Case Example
A wallet lets users send crypto effortlessly. Behind the scenes, Crypto APIs prepares and broadcasts the transaction securely.

NFT & Token Endpoints

What They Are

• NFT Metadata Retrieval: Display token details, images, and history.
• Token Balances: Track holdings across chains.
• Smart Contract Integration: Read contract data easily.

Use Case Example
An NFT wallet uses Crypto APIs to pull metadata for in-app display, offering users a richer experience with their digital collectibles.

Real-World Use Cases for Crypto Wallets

With Crypto APIs, you can build and integrate wallet functionalities tailored to your business goals. Below are the most relevant types of wallets and how Crypto APIs supports them:

• Multi-Asset & Multi-Chain Wallets
  These wallets support various cryptocurrencies and blockchains in a single application. Crypto APIs enables seamless address generation, balance tracking, and transaction broadcasting across multiple chains.
• Institutional & Enterprise Wallets
  Designed for financial institutions, these wallets demand high security and scalability. Crypto APIs offers secure key management, transaction monitoring, and audit-ready infrastructure.
• Non-Custodial & Self-Custody Wallets
  These give users full control over their private keys. Crypto APIs powers non-custodial wallet features like real-time blockchain data, secure transaction broadcasting, and key backup capabilities.
• Web3 & DeFi Wallets
  These integrate directly with decentralized protocols for staking, lending, swapping, and NFTs. Crypto APIs simplifies access to smart contract data and token standards (e.g., ERC-20, ERC-721).
• Consumer & Merchant Wallets
  Ideal for individuals and businesses, these wallets support live data, notifications, and payment processing. Crypto APIs automates address generation, transaction confirmation, and more.

Technical Insight: How to Integrate Crypto APIs

For developers, integrating Crypto APIs involves a simple and scalable process:

• Sign Up for an API Key: Register through the Crypto APIs Dashboard.
• Choose the Right Endpoints: Pick the APIs that match your wallet’s features—blockchain data, transactions, NFTs, or more.

Fully Customizable Enterprise Plans

Crypto APIs offers tailored solutions for wallets with advanced needs:

• Custom Endpoints: Build specific workflows or fetch unique data.
• Priority Support & SLAs: Get access to dedicated help and guaranteed uptime.
• Enhanced Security: Deploy features like multi-signature support or HSM-based key storage.

From startups to institutions, Crypto APIs scales to meet unique compliance, volume, and performance requirements.

Conclusion & Next Steps

Crypto wallets are evolving beyond basic asset storage. With features like NFT support, DeFi access, and real-time alerts, today’s wallets are powerful financial tools.

Crypto APIs helps developers and businesses build secure, scalable, and user-friendly wallets by offering reliable infrastructure and advanced blockchain services.

Ready to get started?

• Explore Crypto APIs Products & Solutions
• Sign up for a free API key
• Contact us for enterprise and custom plans

Build a future-proof wallet your users can trust—with Crypto APIs at the core.