2 Best APIs for NFT API in Nigeria

Alchemy is a blockchain developer platform providing managed node infrastructure, enhanced blockchain APIs, and developer tools for building Web3 applications on Ethereum and other major blockchains. Founded in 2017 and backed by leading Silicon Valley investors, Alchemy powers some of the most prominent DeFi protocols, NFT marketplaces, and Web3 applications globally. For Nigerian blockchain developers, Alchemy is a top-tier choice for node infrastructure with a generous free tier, comprehensive multi-chain support, and developer tools that significantly reduce the complexity of building production-grade blockchain applications. The core of Alchemy is managed blockchain node access. Rather than running and maintaining their own Ethereum or Polygon nodes (which requires significant server infrastructure, ongoing maintenance, and expertise in blockchain node operation), developers connect to Alchemy's distributed node network via API endpoints. Alchemy's infrastructure handles node synchronization, client diversity, load balancing, and uptime — providing Nigerian developers with institutional-grade blockchain connectivity from day one without infrastructure investment. Multi-chain support covers Ethereum mainnet and testnets (Sepolia, Goerli), Polygon (MATIC), Arbitrum, Optimism, Base, Solana, and other chains. This breadth is essential for Nigerian Web3 developers building cross-chain applications or choosing low-fee chains like Polygon for users sensitive to Ethereum gas costs. Nigerian users are particularly gas-cost-conscious, making L2 chains like Polygon and Arbitrum critical for applications targeting Nigerian Web3 users, and Alchemy supports all of these through the same developer account. Enhanced APIs are what differentiate Alchemy from simple node providers. The NFT API provides pre-indexed NFT data — fetching all NFTs owned by an address, NFT metadata, collection floor prices, and transfer history — without requiring developers to build custom indexing infrastructure. The Token API returns ERC-20 token balances, metadata, and price data for any wallet address. The Transfers API provides historical transaction history for an address across all asset types. These enhanced endpoints replace weeks of custom indexing work with simple API calls, dramatically reducing development time for Nigerian blockchain developers. Alchemy Notify provides webhook-based real-time notifications for blockchain events — address activity alerts, dropped transactions, mined transaction confirmations, and gas price alerts. Instead of polling the blockchain every block to check for activity, Nigerian applications subscribe to Alchemy Notify webhooks and receive POST requests when specified events occur. This is critical for fintech and payment applications that need to react immediately when transactions confirm. The Alchemy SDK (JavaScript/TypeScript and Python) wraps the standard JSON-RPC interface with a typed, developer-friendly API and automatically handles retry logic, rate limiting, and authentication. Nigerian developers can call the same ethers.js or web3.js methods they already know, with Alchemy SDK as a drop-in enhancement that adds reliability and the enhanced API endpoints. Free tier provides 300 million compute units per month — a generous allowance that covers typical development workloads and low-to-medium traffic production applications. There are no hard rate limits on the free tier (unlike many competitors that throttle requests per second), which makes Alchemy suitable for Nigerian developers building applications that may have bursty traffic patterns. Paid plans at $49/month and above provide higher compute unit allowances and enhanced support. For Nigerian Web3 developers, Alchemy is the standard starting point for Ethereum and EVM chain development. The combination of reliable node infrastructure, enhanced data APIs, real-time webhooks, and a generous free tier makes it the most developer-friendly and feature-complete option in the managed node provider space.

Blockdaemon is an enterprise blockchain infrastructure provider that offers the APIs, nodes, and custody tools powering the digital asset economy for regulated institutions and developers. Founded in 2017, Blockdaemon serves banks, asset managers, exchanges, fintechs, and Web3 developers who need production-grade blockchain infrastructure without the overhead of running their own nodes or managing validator keys. The company is ISO 27001, SOC 1 Type I, and SOC 2 Type II certified — making it one of the most compliance-ready blockchain infrastructure providers available. What the API Does The Blockdaemon API Suite comprises several products: (1) RPC API — low-latency JSON-RPC endpoints for reading and writing to supported blockchains including Ethereum, Solana, Cardano, NEAR, Sui, and TON among 12+ protocols; (2) Staking API — programmatically stake assets, manage validators, and retrieve staking rewards with compliance-ready reporting; (3) Wallet Transact (MPC Wallet API) — create and manage MPC (Multi-Party Computation) wallets for institutional key custody; (4) Chain Watch — real-time event streaming and blockchain data indexing for on-chain monitoring; (5) NFT API — metadata retrieval, ownership queries, and transfer history for NFTs across chains. How Developers Use It Developers sign up at app.blockdaemon.com, receive API keys immediately (no KYC for the free tier), and start making RPC calls to supported chains within minutes. The API is REST and JSON-RPC based. Authentication uses a Bearer Token (API key) in the Authorization header. Blockdaemon uses a Compute Unit (CU) model — different API operations cost different numbers of CUs depending on complexity. Simple balance queries cost fewer CUs than complex trace calls. Pricing Tiers Free: 3 million CU/month, 5 requests per second, 1 test key — suitable for development and prototyping. Starter: 15–65 million CU/month, 100 RPS, 10 live keys. Growth: 115–365 million CU/month, 200 RPS, overage at $0.000020/CU. Enterprise: 400M+ CU/month, custom RPS, 24/7 support, dedicated team, custom SLAs. Rate Limits Free tier: 5 RPS. Starter: 100 RPS. Growth: 200 RPS. Enterprise: custom. Limits apply per API key. Authentication API Key issued from app.blockdaemon.com passed as a Bearer Token in the Authorization header of each request. Multiple keys can be issued per account depending on tier. Compliance and Certifications Blockdaemon is ISO 27001 certified for information security management, SOC 1 Type I for financial controls, and SOC 2 Type II for security, availability, and confidentiality. This makes it suitable for regulated institutions such as banks and licensed fintechs in Nigeria that require auditable third-party infrastructure. Supported Protocols Ethereum, Solana, Cardano, NEAR Protocol, Sui, TON, Avalanche, Polygon, Bitcoin, Cosmos, Polkadot, and more — 12+ chains total. Nigeria Eligibility No geographic restrictions found in Blockdaemon documentation or terms. Nigerian developers can sign up with a standard email and begin using the free tier immediately. There is no requirement for a US bank account or restricted payment method for the free tier. Challenges and Gotchas (1) The Compute Unit model can be confusing — heavy workloads (trace calls, batch requests) consume CUs faster than expected. (2) Staking and MPC wallet products target institutional clients and may require enterprise contracts. (3) No fiat or NGN support — this is a pure crypto/blockchain infrastructure tool. (4) USSD and mobile money are not applicable to Blockdaemon. Company Background Blockdaemon was founded in 2017 and is headquartered in the United States. The company has raised over $300M in funding and counts major financial institutions among its clients. It manages hundreds of thousands of blockchain nodes globally. The company is a key infrastructure provider for institutional crypto adoption. FAQs Q: Can I use Blockdaemon for free in Nigeria? A: Yes. The free tier requires only an email signup and provides 3M compute units per month with no credit card needed. Q: Does Blockdaemon support Ethereum and Solana? A: Yes. Both are core supported chains with full RPC, staking, and indexing support. Q: Is Blockdaemon suitable for a consumer app? A: The RPC and NFT APIs are suitable for consumer apps. The MPC wallet and staking products are designed for institutional use. Q: What is a Compute Unit? A: A Compute Unit (CU) is a measure of API request complexity. Simple calls use fewer CUs; complex analytical queries use more. Blockdaemon publishes a CU cost table in their docs.