Moralis

Introduction

Moralis helps leading cryptocurrency and blockchain companies grow and innovate faster with high-quality, insightful data tools on Opera and other EVM chains. By using Moralis, your team can focus on growing your product and your business while minimizing the time and money you spend on data infrastructure.

Moralis offers APIs and real-time data streams for NFT, token, wallet, and raw blockchain data, and market insights and discovery data.

Getting Started

To use any of the Moralis APIs, you need to register for a free Moralis account and get your API key. You will find your API key under your account settings.

Moralis APIs

Below you'll find details about the different APIs that Moralis offers and some examples of the endpoints available.

NFT API

The Moralis NFT API can be used to quickly build NFT functionality into your wallet or portfolio application or to spin up an NFT marketplace. You can use it to fetch NFTs owned by particular wallets, get NFT transfers and sales, or track prices of recent NFT sales.

The NFT API automatically indexes all NFTs and metadata across all available chains.

Endpoints

• Get Multiple NFTs

• Get NFTs by Wallet

• Get NFTs by Contract

• Get NFT Metadata

• Get NFT Transfers by Wallet

• Get NFT Transfers by Contract

• Get NFT Transfers in a block

• Get NFT Transfers in a block range

• Get NFT Transfer by Token ID

• Get NFT Collections by Wallet

• Get NFT Collection Metadata

• Get NFT Owners by Contract

• Get NFT Owners by Token ID

• Get NFT Trades by Marketplace

• Get NFT Lowest Price

• Get NFT Stats

• Get NFT Collection Stats

Example call

Below is an example where we call the Get NFTs by Wallet endpoint ( `{wallet_address}/nft`) with the Moralis JS SDK.

Request:

```js
const response = await Moralis.EvmApi.nft.getWalletNFTs({
"chain": "0x1",
"format": "decimal",
"mediaItems": false,
"address": "0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326"
});
```

Response:

```json
{
"page": 1,
"page_size": 100,
"cursor": null,
"result": [
{
"token_address": "0xbd3531da5cf5857e7cfaa92426877b022e612cf8",
"token_id": "8165",
"owner_of": "0x3e18e3987b3b73f4e7cb80e2b25776df7a30bb8b",
"block_number": "18333219",
"block_number_minted": "12878275",
"token_hash": "f7d53f87dc31367e148b2ec957cb585b",
"amount": "1",
"possible_spam": false,
"contract_type": "ERC721",
"name": "PudgyPenguins",
"symbol": "PPG",
"token_uri": "https://ipfs.moralis.io:2053/ipfs/bafybeibc5sgo2plmjkq2tzmhrn54bk3crhnc23zd2msg4ea7a4pxrkgfna/8165",
"metadata": "{\"attributes\":[{\"trait_type\":\"Background\",\"value\":\"Tangerine\"},{\"trait_type\":\"Skin\",\"value\":\"Normal\"},{\"trait_type\":\"Body\",\"value\":\"Kimono Orange\"},{\"trait_type\":\"Face\",\"value\":\"Squad\"},{\"trait_type\":\"Head\",\"value\":\"Cowboy Hat\"}],\"description\":\"A collection 8888 Cute Chubby Pudgy Penquins sliding around on the freezing ETH blockchain.\",\"image\":\"ipfs://QmNf1UsmdGaMbpatQ6toXSkzDpizaGmC9zfunCyoz1enD5/penguin/8165.png\",\"name\":\"Pudgy Penguin #8165\"}",
"last_token_uri_sync": "2023-09-26T22:39:34.136Z",
"last_metadata_sync": "2023-10-13T10:22:08.029Z",
"minter_address": "0xbff79922fcbf93f9c30abb22322b271460c6bebb",
"normalized_metadata": {
"name": "Pudgy Penguin #8165",
"description": "A collection 8888 Cute Chubby Pudgy Penquins sliding around on the freezing ETH blockchain.",
"animation_url": null,
"external_link": null,
"image": "ipfs://QmNf1UsmdGaMbpatQ6toXSkzDpizaGmC9zfunCyoz1enD5/penguin/8165.png",
"attributes": [
{
"trait_type": "Background",
"value": "Tangerine",
"display_type": null,
"max_value": null,
"trait_count": 0,
"order": null
},
{
"trait_type": "Skin",
"value": "Normal",
"display_type": null,
"max_value": null,
"trait_count": 0,
"order": null
},
{
"trait_type": "Body",
"value": "Kimono Orange",
"display_type": null,
"max_value": null,
"trait_count": 0,
"order": null
},
{
"trait_type": "Face",
"value": "Squad",
"display_type": null,
"max_value": null,
"trait_count": 0,
"order": null
},
{
"trait_type": "Head",
"value": "Cowboy Hat",
"display_type": null,
"max_value": null,
"trait_count": 0,
"order": null
}
]
},
"media": {
"mimetype": "image/png",
"parent_hash": "0x9b326b3d983984f6cfc60a88d16ed3ed5774cc12f230c753509cf2e34485685d",
"status": "success",
"updatedAt": "2023-10-13T10:22:07.684Z",
"media_collection": {
"low": {
"height": 100,
"width": 100,
"url": "https://nft-preview-media.s3.us-east-1.amazonaws.com/evm/0x1/0xbd3531da5cf5857e7cfaa92426877b022e612cf8/0x96a9919f09d1df24d87658f4a8962c297587e2d4aab98e551081023b86c9d463/low.png"
},
"medium": {
"height": 250,
"width": 250,
"url": "https://nft-preview-media.s3.us-east-1.amazonaws.com/evm/0x1/0xbd3531da5cf5857e7cfaa92426877b022e612cf8/0x96a9919f09d1df24d87658f4a8962c297587e2d4aab98e551081023b86c9d463/medium.png"
},
"high": {
"height": 500,
"width": 500,
"url": "https://nft-preview-media.s3.us-east-1.amazonaws.com/evm/0x1/0xbd3531da5cf5857e7cfaa92426877b022e612cf8/0x96a9919f09d1df24d87658f4a8962c297587e2d4aab98e551081023b86c9d463/high.png"
}
},
"original_media_url": "ipfs://QmNf1UsmdGaMbpatQ6toXSkzDpizaGmC9zfunCyoz1enD5/penguin/8165.png"
},
"verified_collection": true
}
],
"status": "SYNCED"
}
```

Token API

The Moralis Token API has all the information you need about ERC20 tokens, including ownership, transfers, and token prices. Use it to add ERC20 support to your wallet or enrich your token pages with in-depth token metadata.

The Token API includes token logos and spam detection.

Endpoints

• Get ERC20 Token Balance By Wallet

• Get ERC20 Metadata by Contract

• Get ERC20 Metadata by Symbol

• Get ERC20 Token Prices

• Get ERC20 Token Allowance

• Get ERC20 Token Transfers By Wallet

• Get ERC20 Token Transfers By Contract

• Get DEX Token Pair Reserves

• Get DEX Token Pair Address

• Get ERC20 Token Stats

Example call

Request:

```js
const response = await Moralis.EvmApi.token.getWalletTokenBalances({
"chain": "0x1",
"address": "0x1f9090aaE28b8a3dCeaDf281B0F12828e676c326"
});
```

Response:

```json
{
"token_address": "0x2d30ca6f024dbc1307ac8a1a44ca27de6f797ec22ef20627a1307243b0ab7d09",
"name": "Kylin Network",
"symbol": "KYL",
"logo": "https://cdn.moralis.io/eth/0x67b6d479c7bb412c54e03dca8e1bc6740ce6b99c.png",
"thumbnail": "https://cdn.moralis.io/eth/0x67b6d479c7bb412c54e03dca8e1bc6740ce6b99c_thumb.png",
"decimals": "",
"balance": "123456789",
"possible_spam": false,
"verified_collection": false
}
```

Market Data API

The Moralis Market Data API helps you retrieve top coins and NFT collections based on market cap and trading volume. You can use it to build market discovery pages, coin listing pages, or display winners and losers.

Endpoints

• Get the top ERC20 tokens by market cap

• Get the top ERC20 tokens by price change

• Get the top NFT collections by market cap

• Get the top NFT collections by trading volume

Example call

Request:

```js
const response = await Moralis.EvmApi.marketData.getTopERC20TokensByMarketCap({});
```

Response:

```json
[
{
"rank": "1",
"token_name": "Wrapped Ether",
"token_symbol": "WETH",
"token_logo": "https://cdn.moralis.io/eth/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2.png",
"token_decimals": "18",
"contract_address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
"price_usd": "0.0285",
"price_24h_percent_change": "0.0285",
"price_7d_percent_change": "0.0285",
"market_cap_usd": "0.0285"
}
]
```

Blockchain API

Using the Moralis Blockchain API you can fetch basic data about blocks, transactions, logs, and events. The Blockchain API also supports transaction decoding, which automatically decodes the transaction logs for you, without submitting any ABIs.

Endpoints

• Get Block by Block number or Block Hash

• Get Block by Date

• Get Transaction by Transaction Hash

• Get Native Transactions by Wallet

• Get Decoded Transactions by Transaction Hash

• Get Decoded Transactions by Wallet

• Get Internal Transactions by Transaction Hash

• Get Logs by Contract

• Get Events by Contract

• Get Block Stats

Example call

Request:

```js
const response = await Moralis.EvmApi.transaction.getTransactionVerbose({
"chain": "0x1",
"transactionHash": "0x012b9b98e21664117ec0b499d726a39f492ac8bd402cca8bebcbd163b9f75760"
});
```

Response:

```json
{
"hash": "0x1ed85b3757a6d31d01a4d6677fc52fd3911d649a0af21fe5ca3f886b153773ed",
"nonce": "1848059",
"transaction_index": "108",
"from_address": "0x267be1c1d684f78cb4f6a176c4911b741e4ffdc0",
"to_address": "0x003dde3494f30d861d063232c6a8c04394b686ff",
"from_address_label": "Binance 1",
"to_address_label": "Binance 2",
"value": "115580000000000000",
"gas": "30000",
"gas_price": "52500000000",
"input": "0x",
"receipt_cumulative_gas_used": "4923073",
"receipt_gas_used": "21000",
"receipt_status": "1",
"block_timestamp": "2021-05-07T11:08:35.000Z",
"block_number": "12386788",
"block_hash": "0x9b559aef7ea858608c2e554246fe4a24287e7aeeb976848df2b9a2531f4b9171",
"logs": {
"log_index": "273",
"transaction_hash": "0xdd9006489e46670e0e85d1fb88823099e7f596b08aeaac023e9da0851f26fdd5",
"transaction_index": "204",
"address": "0x3105d328c66d8d55092358cf595d54608178e9b5",
"data": "0x00000000000000000000000000000000000000000000000de05239bccd4d537400000000000000000000000000024dbc80a9f80e3d5fc0a0ee30e2693781a443",
"topic0": "0x2caecd17d02f56fa897705dcc740da2d237c373f70686f4e0d9bd3bf0400ea7a",
"topic1": "0x000000000000000000000000031002d15b0d0cd7c9129d6f644446368deae391",
"topic2": "0x000000000000000000000000d25943be09f968ba740e0782a34e710100defae9",
"block_timestamp": "2021-05-07T11:08:35.000Z",
"block_number": "12386788",
"block_hash": "0x9b559aef7ea858608c2e554246fe4a24287e7aeeb976848df2b9a2531f4b9171",
"decoded_event": {
"signature": "Transfer(address,address,uint256)",
"label": "Transfer",
"type": "event",
"params": [
{
"name": "from",
"value": "0x26C5011483Add49801eA8E3Ee354fE013895aCe5",
"type": "address"
}
]
}
},
"decoded_call": {
"signature": "transfer(address,uint256)",
"label": "transfer",
"type": "function",
"params": [
{
"name": "_to",
"value": "0x1CA455A55108874A95C84620dDA2566c54D17953",
"type": "address"
}
]
},
"internal_transactions": {
"transaction_hash": "0x057Ec652A4F150f7FF94f089A38008f49a0DF88e",
"block_number": 12526958,
"block_hash": "0x0372c302e3c52e8f2e15d155e2c545e6d802e479236564af052759253b20fd86",
"type": "CALL",
"from": "0xd4a3BebD824189481FC45363602b83C9c7e9cbDf",
"to": "0xa71db868318f0a0bae9411347cd4a6fa23d8d4ef",
"value": "650000000000000000",
"gas": "6721975",
"gas_used": "6721975",
"input": "0x",
"output": "0x"
}
}
```

Moralis Streams

Moralis Streams is an API for real-time blockchain data, sent over webhooks. Using Streams, you can avoid polling other APIs and instead only be notified when something has actually happened. You can configure the Stream to notify you only when specific things happen on-chain, such as transactions, transfers, mints, or any other custom event. Streams support custom events and customer filters.

Streams can be created either in the Streams User Interface once you're signed into the Moralis Admin Panel, or through the API.

Guides

• How to listen to all ERC20 transfers over certain amount sent by specific address

• How to listen all NFT transfers

• How to monitor ENS Domain Registrations

• How to monitor for ERC20 token burns or mints

• How to Monitor Crypto Wallet Addresses with Streams

Other Resources

• Moralis Documentation

• Moralis Account Login

• Moralis Tutorials

• Tutorial: Build a DEX With Moralis

• Tutorial: Get Any Token Price With Moralis