alchemy by hairyf/blockchain-master

Skill based on Alchemy SDK JS (alchemy-sdk) docs, generated at 2026-02-09.

The Alchemy SDK is a JavaScript SDK for blockchain access: Ethers.js–compatible provider plus Enhanced APIs (token balances, asset transfers, NFT API, WebSockets, transaction simulation, private tx, Portfolio, Notify, Debug). One client instance per network/API key; namespaces: core, nft, ws, transact, notify, portfolio, prices, debug.

Core References

Topic	Description	Reference
Client	Instantiation, namespaces, AlchemySettings, Network	core-client
Core Namespace	JSON-RPC, Enhanced APIs, token balances, asset transfers, findContractDeployer	core-namespace

Features

NFT

Topic	Description	Reference
NFT API	Metadata, owners, transfers, iterators, spam, rarity, floor price, pagination	features-nft

Realtime and Transact

Topic	Description	Reference
WebSockets	Subscriptions, AlchemySubscription, reconnection and backfill	features-websockets
Transact	Simulate asset changes/execution, send tx, private tx (Flashbots), cancel	features-transact

Portfolio and Notify

Topic	Description	Reference
Portfolio	Multi-wallet tokens, NFTs, collections, transactions (authToken)	features-portfolio
Notify	Webhooks CRUD, address/NFT activity, mined/dropped, GraphQL (authToken)	features-notify

Debug

Topic	Description	Reference
Debug	traceCall, traceTransaction, traceBlock, tracers	features-debug