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Home Tutorials Recipes API Reference

👋 Introduction

Alchemy API Reference Overview
- Chain APIs Overview
- Enhanced APIs Overview
Alchemy Quickstart Guide

📚 Pricing & Resources

Pricing
Pricing FAQ
- Pay As You Go Pricing FAQ
- New Pricing for Existing Scale and Growth Customers
Resources

📜 Alchemy Rollups

Rollups Quickstart
Supported Stacks
Bridge Contract Address Quickstart

🧠 Data

Blockchain data at scale
🛬 SimpleHash Migration Overview
🆕 Multi-Chain Token APIs (Beta)
🆕 Multi-Chain NFT APIs (Beta)
🆕 Multi-Chain Transaction History APIs (Beta)
- Transaction History By Walletpost
🎨 NFT API
🪙 Token API
- Token API Quickstart
- Token API Endpoints
📈 Prices API
💸 Transfers API
- Transfers API Quickstart
- Transfers API Endpoints
  - alchemy_getAssetTransferspost
🛠️ Utility APIs
- Blocks by Timestampget
- Transaction Receipts Endpoints
  - alchemy_getTransactionReceiptspost
🍊 Subgraphs
🔔 Webhooks

👤 Smart Wallets

Quickstart
Try demo
Account Kit Docs
Wallets API Endpoints
/sign-payload
How to stamp requests

🪄 Gas Manager API

How to sponsor gas
Gas Coverage API Endpoints
Gas Manager Admin API Endpoints
Gas Manager Errors
Supported Chains
FAQs

🪄 BUNDLER API

Supported Chains
Bundler API Quickstart
Bundler API Endpoints
Bundler API Fee Logic
Bundler RPC Errors
UserOperation Simulation Endpoints
- alchemy_simulateUserOperationAssetChangespost
EntryPoint Revert Codes
- EntryPoint v0.7 Revert Codes
- EntryPoint v0.6 Revert Codes
Factory Addresses
FAQs

🔊 Websockets

Subscription API Quickstart
Best Practices for Using WebSockets in Web3
Subscription API Endpoints

🔎 Trace API

Trace API Quickstart
Trace API Endpoints
Trace API Resources

🪲 Debug API

Debug API Quickstart
Debug API Endpoints

💰 Alchemy Transact

Transact Quickstart
Transaction Simulation
Transaction Simulation Endpoints
Gas Optimized Transactions
- alchemy_getGasOptimizedTransactionStatuspost
- alchemy_sendGasOptimizedTransactionpost
Private Transactions
- eth_cancelPrivateTransactionpost
- eth_sendPrivateTransactionpost

💎 Ethereum

Ethereum API Quickstart
Ethereum API FAQ
Ethereum API Endpoints

🛠️ Alchemy SDK

Alchemy SDK Quickstart
Alchemy SDK Surface Overview
- Alchemy SDK vs. Raw API Methods
SDK Core Methods
SDK NFT Methods
SDK Transact Methods
SDK Debug Methods
SDK Notify Methods
SDK WebSockets Endpoints
SDK Ethers Utils
Alchemy SDK V2 to V3 Migration Guide
- Alchemy SDK V2 vs. V3 Method Differences
SDK V2 Methods

💜 Polygon PoS

Polygon PoS API Quickstart
- Polygon SDK Examples
Polygon PoS API FAQ
Polygon PoS API Endpoints

💟 Polygon zkEVM

Polygon zkEVM API Quickstart
Polygon zkEVM API FAQ
- What is the difference between Polygon zkEVM and Ethereum?
- What is the difference between Polygon zkEVM and Polygon PoS?
Polygon zkEVM Endpoints

🪐 Arbitrum

Arbitrum API Quickstart
- Arbitrum SDK Examples
Arbitrum API FAQ
- Arbitrum vs. Ethereum API Differences
Arbitrum API Endpoints

🔴 OP Mainnet

OP Mainnet API Quickstart
- Optimism SDK Examples
OP Mainnet API FAQ
- Optimism Error Codes
OP Mainnet API Endpoints

🔵 Base

Base API Quickstart
Base API FAQ
Base API Endpoints

❇️ Solana

Solana API Quickstart
Solana API FAQ
Solana API Endpoints

⭐️ Astar

Astar API Quickstart
Astar API FAQ
Astar API Endpoints

🛸 STARKNET

Starknet API Quickstart
Starknet API FAQ
Starknet API Endpoints

🎯 zksync

zkSync Era API Quickstart
zkSync Era API FAQ
zkSync Era API Endpoints

🟢 GNOSIS

Gnosis Chain API Quickstart
Gnosis Chain API FAQ
Gnosis Chain API Endpoints

🔴 Avalanche C-Chain

Avalanche C-Chain API Quickstart
Avalanche C-Chain API FAQ
Avalanche C-Chain API Endpoints

🟠 Arbitrum Nova

Arbitrum Nova Chain API Quickstart
Arbitrum Nova Chain API FAQ
Arbitrum Nova Chain API Endpoints

🟢 ZetaChain

ZetaChain API Quickstart
ZetaChain API FAQ
Zetachain API Endpoints

🟡 Blast

Blast Chain API Quickstart
Blast Chain API FAQ
Blast Chain API Endpoints

📃 Scroll

Scroll Chain API Quickstart
Scroll Chain API FAQ
Scroll Chain API Endpoints

⚫️ Linea

Linea Chain API Quickstart
Linea Chain API FAQ
Linea Chain API Endpoints

⬛️ Mantle

Mantle Chain API Quickstart
Mantle Chain API FAQ
Mantle Chain API Endpoints

🐻 Berachain

Berachain API Quickstart
Berachain API FAQ
Berachain API Endpoints

🔹 METIS

Metis Chain API Quickstart
Metis Chain API FAQ
Metis Chain API Endpoints

🔲 Sonic

Sonic Chain API Quickstart
Sonic Chain API FAQ
Sonic Chain API Endpoints

🎈 Sei

Sei API Quickstart
Sei API FAQ
Sei API Endpoints

❇️ Flow

Flow API Quickstart
Flow API FAQ
Flow API Endpoints

🔵 CrossFi

CrossFi API Quickstart
CrossFi API FAQ
CrossFi API Endpoints

🔲 Soneium

Soneium API Quickstart
Soneium API FAQ
Soneium API Endpoints

🌸 Unichain

Unichain API Quickstart
Unichain API FAQ
Unichain API Endpoints

◼️ World Chain

World Chain API Quickstart
World Chain API FAQ
World Chain API Endpoints

🔲 Rootstock

Rootstock API Quickstart
Rootstock API FAQ
Rootstock API Endpoints

⚫️ Shape

Shape API Quickstart
Shape API FAQ
Shape API Endpoints

🟦 Apechain

ApeChain API Quickstart
ApeChain API FAQ
ApeChain API Endpoints

🌺 Geist

Geist API Quickstart
Geist API FAQ
Geist API Endpoints

♠️ Lens

Lens API Quickstart
Lens API FAQ
Lens API Endpoints

✳️ Abstract

Abstract API Quickstart
Abstract API FAQ
Abstract API Endpoints

📒 opBNB (Paid Tier)

opBNB Chain API Quickstart
opBNB Chain API FAQ
opBNB Chain API Endpoints

💸 Transfers API (Tx History)

Transfers API Endpoints
- alchemy_getAssetTransferspost

🟨 BNB SMART CHAIN

BNB Smart Chain Quickstart
BNB Smart Chain FAQ
BNB Smart Chain Endpoints

☮️ Ink

Ink API Quickstart
Ink API FAQ
Ink API Endpoints

🔲 Lumia

Lumia API Quickstart
Lumia API FAQ
Lumia API Endpoints

🟣 MONAD

Monad API Quickstart
Monad API FAQ
Monad API Endpoints

👋 Introduction

Alchemy API Reference Overview
- Chain APIs Overview
- Enhanced APIs Overview
Alchemy Quickstart Guide

📚 Pricing & Resources

Pricing
Pricing FAQ
- Pay As You Go Pricing FAQ
- New Pricing for Existing Scale and Growth Customers
Resources

📜 Alchemy Rollups

Rollups Quickstart
Supported Stacks
Bridge Contract Address Quickstart

🧠 Data

Blockchain data at scale
🛬 SimpleHash Migration Overview
🆕 Multi-Chain Token APIs (Beta)
🆕 Multi-Chain NFT APIs (Beta)
🆕 Multi-Chain Transaction History APIs (Beta)
- Transaction History By Walletpost
🎨 NFT API
🪙 Token API
- Token API Quickstart
- Token API Endpoints
📈 Prices API
💸 Transfers API
- Transfers API Quickstart
- Transfers API Endpoints
  - alchemy_getAssetTransferspost
🛠️ Utility APIs
- Blocks by Timestampget
- Transaction Receipts Endpoints
  - alchemy_getTransactionReceiptspost
🍊 Subgraphs
🔔 Webhooks

👤 Smart Wallets

Quickstart
Try demo
Account Kit Docs
Wallets API Endpoints
/sign-payload
How to stamp requests

🪄 Gas Manager API

How to sponsor gas
Gas Coverage API Endpoints
Gas Manager Admin API Endpoints
Gas Manager Errors
Supported Chains
FAQs

🪄 BUNDLER API

Supported Chains
Bundler API Quickstart
Bundler API Endpoints
Bundler API Fee Logic
Bundler RPC Errors
UserOperation Simulation Endpoints
- alchemy_simulateUserOperationAssetChangespost
EntryPoint Revert Codes
- EntryPoint v0.7 Revert Codes
- EntryPoint v0.6 Revert Codes
Factory Addresses
FAQs

🔊 Websockets

Subscription API Quickstart
Best Practices for Using WebSockets in Web3
Subscription API Endpoints

🔎 Trace API

Trace API Quickstart
Trace API Endpoints
Trace API Resources

🪲 Debug API

Debug API Quickstart
Debug API Endpoints

💰 Alchemy Transact

Transact Quickstart
Transaction Simulation
Transaction Simulation Endpoints
Gas Optimized Transactions
- alchemy_getGasOptimizedTransactionStatuspost
- alchemy_sendGasOptimizedTransactionpost
Private Transactions
- eth_cancelPrivateTransactionpost
- eth_sendPrivateTransactionpost

💎 Ethereum

Ethereum API Quickstart
Ethereum API FAQ
Ethereum API Endpoints

🛠️ Alchemy SDK

Alchemy SDK Quickstart
Alchemy SDK Surface Overview
- Alchemy SDK vs. Raw API Methods
SDK Core Methods
SDK NFT Methods
SDK Transact Methods
SDK Debug Methods
SDK Notify Methods
SDK WebSockets Endpoints
SDK Ethers Utils
Alchemy SDK V2 to V3 Migration Guide
- Alchemy SDK V2 vs. V3 Method Differences
SDK V2 Methods

💜 Polygon PoS

Polygon PoS API Quickstart
- Polygon SDK Examples
Polygon PoS API FAQ
Polygon PoS API Endpoints

💟 Polygon zkEVM

Polygon zkEVM API Quickstart
Polygon zkEVM API FAQ
- What is the difference between Polygon zkEVM and Ethereum?
- What is the difference between Polygon zkEVM and Polygon PoS?
Polygon zkEVM Endpoints

🪐 Arbitrum

Arbitrum API Quickstart
- Arbitrum SDK Examples
Arbitrum API FAQ
- Arbitrum vs. Ethereum API Differences
Arbitrum API Endpoints

🔴 OP Mainnet

OP Mainnet API Quickstart
- Optimism SDK Examples
OP Mainnet API FAQ
- Optimism Error Codes
OP Mainnet API Endpoints

🔵 Base

Base API Quickstart
Base API FAQ
Base API Endpoints

❇️ Solana

Solana API Quickstart
Solana API FAQ
Solana API Endpoints

⭐️ Astar

Astar API Quickstart
Astar API FAQ
Astar API Endpoints

🛸 STARKNET

Starknet API Quickstart
Starknet API FAQ
Starknet API Endpoints

🎯 zksync

zkSync Era API Quickstart
zkSync Era API FAQ
zkSync Era API Endpoints

🟢 GNOSIS

Gnosis Chain API Quickstart
Gnosis Chain API FAQ
Gnosis Chain API Endpoints

🔴 Avalanche C-Chain

Avalanche C-Chain API Quickstart
Avalanche C-Chain API FAQ
Avalanche C-Chain API Endpoints

🟠 Arbitrum Nova

Arbitrum Nova Chain API Quickstart
Arbitrum Nova Chain API FAQ
Arbitrum Nova Chain API Endpoints

🟢 ZetaChain

ZetaChain API Quickstart
ZetaChain API FAQ
Zetachain API Endpoints

🟡 Blast

Blast Chain API Quickstart
Blast Chain API FAQ
Blast Chain API Endpoints

📃 Scroll

Scroll Chain API Quickstart
Scroll Chain API FAQ
Scroll Chain API Endpoints

⚫️ Linea

Linea Chain API Quickstart
Linea Chain API FAQ
Linea Chain API Endpoints

⬛️ Mantle

Mantle Chain API Quickstart
Mantle Chain API FAQ
Mantle Chain API Endpoints

🐻 Berachain

Berachain API Quickstart
Berachain API FAQ
Berachain API Endpoints

🔹 METIS

Metis Chain API Quickstart
Metis Chain API FAQ
Metis Chain API Endpoints

🔲 Sonic

Sonic Chain API Quickstart
Sonic Chain API FAQ
Sonic Chain API Endpoints

🎈 Sei

Sei API Quickstart
Sei API FAQ
Sei API Endpoints

❇️ Flow

Flow API Quickstart
Flow API FAQ
Flow API Endpoints

🔵 CrossFi

CrossFi API Quickstart
CrossFi API FAQ
CrossFi API Endpoints

🔲 Soneium

Soneium API Quickstart
Soneium API FAQ
Soneium API Endpoints

🌸 Unichain

Unichain API Quickstart
Unichain API FAQ
Unichain API Endpoints

◼️ World Chain

World Chain API Quickstart
World Chain API FAQ
World Chain API Endpoints

🔲 Rootstock

Rootstock API Quickstart
Rootstock API FAQ
Rootstock API Endpoints

⚫️ Shape

Shape API Quickstart
Shape API FAQ
Shape API Endpoints

🟦 Apechain

ApeChain API Quickstart
ApeChain API FAQ
ApeChain API Endpoints

🌺 Geist

Geist API Quickstart
Geist API FAQ
Geist API Endpoints

♠️ Lens

Lens API Quickstart
Lens API FAQ
Lens API Endpoints

✳️ Abstract

Abstract API Quickstart
Abstract API FAQ
Abstract API Endpoints

📒 opBNB (Paid Tier)

opBNB Chain API Quickstart
opBNB Chain API FAQ
opBNB Chain API Endpoints

💸 Transfers API (Tx History)

Transfers API Endpoints
- alchemy_getAssetTransferspost

🟨 BNB SMART CHAIN

BNB Smart Chain Quickstart
BNB Smart Chain FAQ
BNB Smart Chain Endpoints

☮️ Ink

Ink API Quickstart
Ink API FAQ
Ink API Endpoints

🔲 Lumia

Lumia API Quickstart
Lumia API FAQ
Lumia API Endpoints

🟣 MONAD

Monad API Quickstart
Monad API FAQ
Monad API Endpoints

getBlockTime

post https://{network}.g.alchemy.com/v2/{apiKey}

Returns the estimated production time of a block.

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