// GLOSSARY -- WEB3 INFRASTRUCTURE

What is SDK?

1 min read Updated

An SDK (Software Development Kit) is a collection of tools, libraries, and documentation that simplifies development for a specific platform — providing pre-built functions for common blockchain operations.

WHY IT MATTERS

SDKs abstract blockchain complexity. Instead of manually encoding ABI calls, managing nonces, and handling gas estimation, an SDK provides clean functions: sdk.swap(tokenA, tokenB, amount). This dramatically reduces development time and error rate.

Major blockchain SDKs include: ethers.js and viem (Ethereum interaction), Wagmi (React hooks for Web3), Thirdweb (all-in-one Web3 development), and protocol-specific SDKs (Uniswap SDK, Aave SDK).

For agent development, SDKs provide the tools agents need to interact with blockchain: reading state, submitting transactions, and parsing events. Good SDKs handle edge cases that raw blockchain interaction would miss.

FREQUENTLY ASKED QUESTIONS

ethers.js vs viem?
ethers.js is the established standard — large ecosystem, extensive documentation. viem is newer — more TypeScript-native, better tree-shaking, stronger typing. Both are excellent; viem is gaining momentum.
Do I need a blockchain-specific SDK?
For basic interactions, ethers.js/viem suffice. For complex protocol interactions (Uniswap routing, Aave position management), protocol-specific SDKs save significant development time.
Can agents use SDKs?
Yes — agents typically interact with blockchain through SDK functions. The SDK provides the 'tools' that the agent's LLM decides to call based on its reasoning.

FURTHER READING

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