V3 endpoints

These endpoints require a Client API Key or Client Session Token (CST) as a bearer token.

Clients

Get the client's details

GET https://api.portalhq.io/api/v3/clients/me

This endpoint retrieves the details of the current client, including information about associated wallets.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Example Response

{
  "createdAt": "2024-04-16T21:15:06.443Z",
  "custodian": {
    "id": "custodianId",
    "name": "Custodian Name"
  },
  "ejectedAt": null,
  "environment": {
    "id": "environmentId",
    "name": "Development"
  },
  "id": "clientId",
  "isAccountAbstracted": false,
  "metadata": {
    "namespaces": {
      "solana": {
        "address": "BrGo1hFAL8MpudNQ6K4YWDaFB838uboUcCpm8C9uyC4R",
        "curve": "ED25519"
      },
      "stellar": {
        "address": "GCQTIL5333ASTDBXAJYDIAFRWXYGMR2KPGUNIDNSHOMBINTAMPZJFOKT",
        "curve": "ED25519"
      },
      "eip155": {
        "address": "0x0f3f5cea9784e254972d915695dbc9bc2a395faf",
        "curve": "SECP256K1"
      },
      "tron": {
        "address": "TBMq3UK8JNvauSc7sPUp7fkoSzTN4PZhP2",
        "curve": "SECP256K1"
      }
    }
  },
  "wallets": [
    {
      "createdAt": "2024-04-16T21:15:45.144Z",
      "curve": "SECP256K1",
      "id": "wallet1Id",
      "backupSharePairs": [
        {
          "backupMethod": "PASSWORD",
          "createdAt": "2024-04-16T21:16:48.723Z",
          "id": "backupSharePairId1",
          "status": "completed"
        },
        {
          "backupMethod": "GDRIVE",
          "createdAt": "2024-04-16T21:17:02.074Z",
          "id": "backupSharePairId2",
          "status": "incomplete"
        },
        {
          "backupMethod": "ICLOUD",
          "createdAt": "2024-04-16T21:18:06.996Z",
          "id": "backupSharePairId3",
          "status": "incomplete"
        }
      ],
      "signingSharePairs": [
        {
          "createdAt": "2024-04-16T21:15:45.151Z",
          "id": "signingSharePairId1",
          "status": "completed"
        }
      ],
      "publicKey": "stringifiedJSON"
    }
  ]
}

{}

{}

Get the client's assets by chain

GET https://api.portalhq.io/api/v3/clients/me/chains/:chain/assets

This endpoint retrieves the asset balances (native and token balances) for a specified blockchain. It provides detailed information on the native balance and token balances held by a given address on the specified chain.

Supported Chains

You can use either the full chain identifier or the shortcut for popular chains.

Ethereum Mainnet (eip155:1 or ethereum)
Ethereum Sepolia (eip155:11155111 or sepolia)
Solana Mainnet (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp or solana)
Solana Devnet (solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1 or solana-devnet)
Base Mainnet (eip155:8453 or base)
Base Sepolia (eip155:84532 or base-sepolia)
Polygon Mainnet (eip155:137 or polygon)
Polygon Amoy (eip155:80002 or polygon-amoy)
Optimism Mainnet (eip155:10)
Binance Smart Chain (eip155:56)
Binance Smart Chain Testnet (eip155:97)
Fantom (eip155:250)
Moonbeam (eip155:1284)
Arbitrum Mainnet (eip155:42161)
Avalanche Mainnet (eip155:43114)
Linea Mainnet (eip155:59144)

When using CAIP-2 chain formats in the URL (e.g. eip155:11155111), ensure the URL is URI encoded to accommodate the ":" character.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Query Parameters

Name

Type

Description

chainId*

String

includeNfts

Boolean - Defaults to false

Optionally includes the NFTs of the client on the specified chain.

Example Response

{
  "nativeBalance": {
    "balance": "0.10991767582513721",
    "decimals": 18,
    "name": "Ether",
    "rawBalance": "109917675825137210",
    "symbol": "ETH",
    "metadata": {
      "logo": "https://cdn.moralis.io/eth/0x.png",
      "thumbnail": "https://cdn.moralis.io/eth/0x_thumb.png"
    }
  },
  "tokenBalances": [
    {
      "balance": "0.0199",
      "decimals": 18,
      "name": "Wrapped Ether",
      "rawBalance": "19900000000000000",
      "symbol": "WETH",
      "metadata": {
        "tokenAddress": "0xfff9976782d46cc05630d1f6ebab18b2324d6b14",
        "verifiedContract": false,
        "totalSupply": "48148.648311179713152621",
        "rawTotalSupply": "48148648311179713152621",
        "percentageRelativeToTotalSupply": 0.00004133033989114
      }
    }
  ],
  "nfts": [
    {
      "nftId": "ethereum.0x123abc...def456.1234",
      "name": "Cosmic Kitty #1234",
      "description": "A rare, interstellar feline NFT from the Cosmic Kitties collection.",
      "imageUrl": "https://example.com/images/cosmic-kitty-1234.png",
      "chainId": "eip155:1",
      "contractAddress": "0x123abc...def456",
      "tokenId": "1234",
      "collection": {
        "name": "Cosmic Kitties",
        "description": "A collection of 10,000 unique space-faring felines.",
        "imageUrl": "https://example.com/images/cosmic-kitties-logo.png"
      },
      "lastSale": {
        "price": 1500000000000000000,
        "currency": "ETH",
        "date": "2024-07-15T14:30:00Z"
      },
      "rarity": {
        "rank": 42,
        "score": 0.95
      },
      "floorPrice": {
        "price": 1200000000000000000,
        "currency": "ETH"
      },
      "detailedInfo": {
        "ownerCount": 1,
        "tokenCount": 1,
        "createdDate": "2024-01-01T00:00:00Z",
        "attributes": [
          {
            "traitType": "Fur Color",
            "value": "Nebula Purple",
            "displayType": null
          },
          {
            "traitType": "Eye Color",
            "value": "Starlight Blue",
            "displayType": null
          },
          {
            "traitType": "Accessory",
            "value": "Jetpack",
            "displayType": null
          }
        ],
        "owners": [
          {
            "ownerAddress": "0xabcdef...123456",
            "quantity": 1,
            "firstAcquiredDate": "2024-07-15T14:30:00Z",
            "lastAcquiredDate": "2024-07-15T14:30:00Z"
          }
        ],
        "extendedCollectionInfo": {
          "bannerImageUrl": "https://example.com/images/cosmic-kitties-banner.png",
          "externalUrl": "https://cosmickitties.io",
          "twitterUsername": "@CosmicKitties",
          "discordUrl": "https://discord.gg/cosmickitties",
          "instagramUsername": "@cosmic.kitties",
          "mediumUsername": "@CosmicKittiesNFT",
          "telegramUrl": "https://t.me/cosmickitties",
          "distinctOwnerCount": 8500,
          "distinctNftCount": 10000,
          "totalQuantity": 10000
        },
        "extendedSaleInfo": {
          "fromAddress": "0x98765...fedcba",
          "toAddress": "0xabcdef...123456",
          "priceUsdCents": 270000,
          "transaction": "0xfedcba...987654",
          "marketplaceId": "opensea",
          "marketplaceName": "OpenSea"
        },
        "marketplaceInfo": [
          {
            "marketplaceId": "opensea",
            "marketplaceName": "OpenSea",
            "marketplaceCollectionId": "cosmic-kitties",
            "nftUrl": "https://opensea.io/assets/ethereum/0x123abc...def456/1234",
            "collectionUrl": "https://opensea.io/collection/cosmic-kitties",
            "verified": true,
            "floorPrice": {
              "value": 1200000000000000000,
              "paymentToken": {
                "paymentTokenId": "ethereum",
                "name": "Ethereum",
                "symbol": "ETH",
                "address": null,
                "decimals": 18
              },
              "valueUsdCents": 270000
            }
          }
        ],
        "mediaInfo": {
          "previews": {
            "imageSmallUrl": "https://example.com/images/cosmic-kitty-1234-small.png",
            "imageMediumUrl": "https://example.com/images/cosmic-kitty-1234-medium.png",
            "imageLargeUrl": "https://example.com/images/cosmic-kitty-1234-large.png",
            "imageOpengraphUrl": "https://example.com/images/cosmic-kitty-1234-og.png",
            "blurhash": "L9B4IwofV@of~qofM{of00WB%Mj[",
            "predominantColor": "#8A2BE2"
          },
          "animationUrl": "https://example.com/animations/cosmic-kitty-1234.mp4",
          "backgroundColor": "#000000"
        }
      }
    }
  ]
}

{}

{}

Get the client's assets by chain (NFTs only)

GET https://api.portalhq.io/api/v3/clients/me/chains/:chain/assets/nfts

This endpoint retrieves the NFT assets for a specified blockchain.

Supported Chains

You can use either the full chain identifier or the shortcut for popular chains.

Ethereum Mainnet (eip155:1 or ethereum)
Ethereum Sepolia (eip155:11155111 or sepolia)
Solana Mainnet (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp or solana)
Solana Devnet (solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1 or solana-devnet)
Base Mainnet (eip155:8453 or base)
Base Sepolia (eip155:84532 or base-sepolia)
Polygon Mainnet (eip155:137 or polygon)
Polygon Amoy (eip155:80002 or polygon-amoy)
Optimism Mainnet (eip155:10)
Binance Smart Chain (eip155:56)
Binance Smart Chain Testnet (eip155:97)
Fantom (eip155:250)
Moonbeam (eip155:1284)
Arbitrum Mainnet (eip155:42161)
Avalanche Mainnet (eip155:43114)
Linea Mainnet (eip155:59144)

When using CAIP-2 chain formats in the URL (e.g. eip155:11155111), ensure the URL is URI encoded to accommodate the ":" character.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Query Parameters

Name

Type

Description

chainId*

String

Example Response

[
  {
    "nftId": "ethereum.0x123abc...def456.1234",
    "name": "Cosmic Kitty #1234",
    "description": "A rare, interstellar feline NFT from the Cosmic Kitties collection.",
    "imageUrl": "https://example.com/images/cosmic-kitty-1234.png",
    "chainId": "eip155:1",
    "contractAddress": "0x123abc...def456",
    "tokenId": "1234",
    "collection": {
      "name": "Cosmic Kitties",
      "description": "A collection of 10,000 unique space-faring felines.",
      "imageUrl": "https://example.com/images/cosmic-kitties-logo.png"
    },
    "lastSale": {
      "price": 1500000000000000000,
      "currency": "ETH",
      "date": "2024-07-15T14:30:00Z"
    },
    "rarity": {
      "rank": 42,
      "score": 0.95
    },
    "floorPrice": {
      "price": 1200000000000000000,
      "currency": "ETH"
    },
    "detailedInfo": {
      "ownerCount": 1,
      "tokenCount": 1,
      "createdDate": "2024-01-01T00:00:00Z",
      "attributes": [
        {
          "traitType": "Fur Color",
          "value": "Nebula Purple",
          "displayType": null
        },
        {
          "traitType": "Eye Color",
          "value": "Starlight Blue",
          "displayType": null
        },
        {
          "traitType": "Accessory",
          "value": "Jetpack",
          "displayType": null
        }
      ],
      "owners": [
        {
          "ownerAddress": "0xabcdef...123456",
          "quantity": 1,
          "firstAcquiredDate": "2024-07-15T14:30:00Z",
          "lastAcquiredDate": "2024-07-15T14:30:00Z"
        }
      ],
      "extendedCollectionInfo": {
        "bannerImageUrl": "https://example.com/images/cosmic-kitties-banner.png",
        "externalUrl": "https://cosmickitties.io",
        "twitterUsername": "@CosmicKitties",
        "discordUrl": "https://discord.gg/cosmickitties",
        "instagramUsername": "@cosmic.kitties",
        "mediumUsername": "@CosmicKittiesNFT",
        "telegramUrl": "https://t.me/cosmickitties",
        "distinctOwnerCount": 8500,
        "distinctNftCount": 10000,
        "totalQuantity": 10000
      },
      "extendedSaleInfo": {
        "fromAddress": "0x98765...fedcba",
        "toAddress": "0xabcdef...123456",
        "priceUsdCents": 270000,
        "transaction": "0xfedcba...987654",
        "marketplaceId": "opensea",
        "marketplaceName": "OpenSea"
      },
      "marketplaceInfo": [
        {
          "marketplaceId": "opensea",
          "marketplaceName": "OpenSea",
          "marketplaceCollectionId": "cosmic-kitties",
          "nftUrl": "https://opensea.io/assets/ethereum/0x123abc...def456/1234",
          "collectionUrl": "https://opensea.io/collection/cosmic-kitties",
          "verified": true,
          "floorPrice": {
            "value": 1200000000000000000,
            "paymentToken": {
              "paymentTokenId": "ethereum",
              "name": "Ethereum",
              "symbol": "ETH",
              "address": null,
              "decimals": 18
            },
            "valueUsdCents": 270000
          }
        }
      ],
      "mediaInfo": {
        "previews": {
          "imageSmallUrl": "https://example.com/images/cosmic-kitty-1234-small.png",
          "imageMediumUrl": "https://example.com/images/cosmic-kitty-1234-medium.png",
          "imageLargeUrl": "https://example.com/images/cosmic-kitty-1234-large.png",
          "imageOpengraphUrl": "https://example.com/images/cosmic-kitty-1234-og.png",
          "blurhash": "L9B4IwofV@of~qofM{of00WB%Mj[",
          "predominantColor": "#8A2BE2"
        },
        "animationUrl": "https://example.com/animations/cosmic-kitty-1234.mp4",
        "backgroundColor": "#000000"
      }
    }
  }
]

{}

{}

Get the client's transaction history by chain

GET https://api.portalhq.io/api/v3/clients/me/transactions

Retrieves the client's transaction history for a specific chain.

Supported Chains

Ethereum Mainnet (eip155:1)
Ethereum Goerli (eip155:5) // @deprecated
Ethereum Sepolia (eip155:11155111)
Base Mainnet (eip155:8453)
Base Sepolia (eip155:84532)
Polygon Mainnet (eip155:137)
Polygon Mumbai (eip155:80001)
Polygon Amoy (eip155:80002)

When using CAIP-2 chain formats in the URL (e.g. eip155:11155111), ensure the URL is URI encoded to accommodate the ":" character.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Query Parameters

Name

Type

Description

chainId*

String

Example Response

[
  {
    "blockNum": "0x57450c",
    "uniqueId": "0x3b8a06c63d02ba6826cce6188c2caa44b68dd6a36050dcfd5c085a7cba5444e3:external",
    "hash": "0x3b8a06c63d02ba6826cce6188c2caa44b68dd6a36050dcfd5c085a7cba5444e3",
    "from": "0xdfd8302f44727a6348f702ff7b594f127de3a902",
    "to": "0x8eddb4067a73061e93583897d4684b749a93f19c",
    "value": 0.01,
    "erc721TokenId": null,
    "erc1155Metadata": null,
    "tokenId": null,
    "asset": "ETH",
    "category": "external",
    "rawContract": {
      "value": "0x2386f26fc10000",
      "address": null,
      "decimal": "0x12"
    },
    "metadata": {
      "blockTimestamp": "2024-04-17T17:32:24.000Z"
    },
    "chainId": 11155111
  }
]

{}

{}

Build a transaction

POST https://api.portalhq.io/api/v3/clients/me/chains/:chain/assets/send/build-transaction

Creates an unsigned transaction for transferring assets to another address on a specific chain. You can then use this unsigned transaction to sign and submit the transaction.

Supported Chains

You can use any of the following friendly chain names for the chain path param (or alternatively you can use the CAIP-2 chainId):
- ethereum (eip155:1)
- sepolia (eip155:11155111)
- base (eip155:8453)
- base-sepolia (eip155:84531)
- polygon (eip155:137)
- polygon-mumbai (eip155:80001)
- solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
- solana-devnet (solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1)

When using CAIP-2 chain formats in the URL (e.g. eip155:11155111), ensure the URL is URI encoded to accommodate the ":" character.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Path Parameters

Name

Type

Description

chain*

String

Must be one of the chains in "Supported Chains".

Body Parameters

Name

Type

Description

to*

String

The recipient's address.

token*

String

The token symbol (e.g., "USDC") or contract address or mint address (for Solana). For native token transfers, use "NATIVE".

amount*

String

The amount to transfer (as a string, in the token's primary denomination). For example, "0.01" is 1 cent of USDC.

Example Request

curl --request POST \
  --url https://api.portalhq.io/api/v3/clients/me/chains/ethereum/assets/send/build-transaction \
  --header 'Authorization: Bearer [token]' \
  --header 'Content-Type: application/json' \
  --data '{
	"to": "0xdFd8302f44727A6348F702fF7B594f127dE3A902",
	"token": "USDC",
	"amount": "0.01"
}'

Example Response

The response includes the unsigned transaction details and metadata. The structure of the response differs depending on whether the chain is Solana or an EIP-155 chain (e.g., Ethereum, Polygon, Base).

{
  "transaction": {
    "from": "0x54968898742c08da211a1cd355447cd1f37f0649",
    "to": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
    "data": "0xa9059cbb000000000000000000000000dfd8302f44727a6348f702ff7b594f127de3a9020000000000000000000000000000000000000000000000000000000000002710"
  },
  "metadata": {
    "amount": "0.01",
    "fromAddress": "0x54968898742c08da211a1cd355447cd1f37f0649",
    "toAddress": "0xdFd8302f44727A6348F702fF7B594f127dE3A902",
    "tokenAddress": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
    "tokenDecimals": 6,
    "rawAmount": "10000"
  }
}

{
  "transaction": "AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAUIXIcyVRnqtuJq4VAVZQPX4M5MFtpcAzLmaNCC62aV/5Ftzsmzlp2NKI8Dlj+MKJ7LBQsJ9iiXAult3S/Y/4YTRgjDL4wY8hJ13iBEAciC0uIGJEPr+VGVf2qQqxBytKhwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB1aziYgQ4rYMUc0A5K2y4oefHN83MNdiTvNPqWosjPIyXJY9OJInxuz0QKRSODYMLWhOZ2v8QhASOe9jb6fhZxvp6877brTo9ZfNqq8l0MbG75MLS9uDkfKYCA0UvXWEG3fbh12Whk9nL4UbO63msHLSF7V9bN5E6jPWFfv8AqSgizMJvj1c1WJPJuxDQWi6VG4dp6Fq930FKOQcI25XjAgUGAAIEBgMHAAcDAQIACQMQJwAAAAAAAA==",
  "metadata": {
    "amount": "0.01",
    "fromAddress": "7EC5TEEAcDseLH6PyqKkPiBasVnsdmrRbRHjN3zkkHFW",
    "toAddress": "8APEEA4SHrfGteABQcUmH2yEHy7nEe8DqgvmKGAStHR",
    "tokenMintAddress": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "tokenDecimals": 6,
    "tokenProgramId": "TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb",
    "tokenExtensions": [
      "ConfidentialTransferAccount",
      "ConfidentialTransferMint",
      "CpiGuard",
      "DefaultAccountState",
      "GroupMemberPointer",
      "GroupPointer",
      "ImmutableOwner",
      "InterestBearingConfig",
      "MemoTransfer",
      "MetadataPointer",
      "MintCloseAuthority",
      "NonTransferable",
      "NonTransferableAccount",
      "PermanentDelegate",
      "TokenGroup",
      "TokenGroupMember",
      "TokenMetadata",
      "TransferFeeAmount",
      "TransferFeeConfig",
      "TransferHook",
      "TransferHookAccount",
      "Uninitialized",
    ],
    "rawAmount": "10000",
    "lastValidBlockHeight": "260129177",
    "serializedTransactionBase64Encoded": "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",
    "serializedTransactionBase58Encoded": "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",
    "unsignedTransactionMessage": {
      "signatures": null,
      "message": {
        "accountKeys": [
          "7EC5TEEAcDseLH6PyqKkPiBasVnsdmrRbRHjN3zkkHFW",
          "8PeKkecAjt1VgQNg1acdhgrajDJDB9uEDXP6MvRC8WAZ",
          "bCtKaS7SecyaiTDL388bnLyMmgFvGdxmLmeEhcoq5Eo",
          "11111111111111111111111111111111",
          "8APEEA4SHrfGteABQcUmH2yEHy7nEe8DqgvmKGAStHR",
          "ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL",
          "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
          "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"
        ],
        "header": {
          "numRequiredSignatures": 1,
          "numReadonlySignedAccounts": 0,
          "numReadonlyUnsignedAccounts": 5
        },
        "instructions": [
          {
            "programIdIndex": 5,
            "accounts": [
              0,
              2,
              4,
              6,
              3,
              7
            ],
            "data": ""
          },
          {
            "programIdIndex": 7,
            "accounts": [
              1,
              2,
              0
            ],
            "data": "3GAG5eogvTjV"
          }
        ],
        "recentBlockhash": "3hg5wAbN1FYh5fGANDpCgWMDG1NPMYmNwdDiYTqinFUv"
      }
    }
  }
}

{
  "error": "Error message"
}

Notes

The token field can accept either a token symbol (e.g. "USDC" or "USDT") or a contract address (for EIP-155 tokens) or a mint address (for Solana tokens).
The amount should be provided in the token's primary denomination (e.g. whole USDC, not micro-USDC).
This endpoint creates an unsigned transaction. The client is responsible for signing the transaction before broadcasting it to the network.
The response structure differs between Solana and EIP-155 chains. Make sure to handle both response types in your implementation.

Simulate + validate a transaction

POST https://api.portalhq.io/api/v3/clients/me/evaluate-transaction

This endpoint evaluates a transaction by either simulating its execution or validating its authenticity (or both). The evaluation provides detailed insights into the transaction, including potential changes in asset balances, exposures, and a classification of the transaction's risk.

Supported Chains

Ethereum Mainnet (eip155:1)
Ethereum Sepolia (eip155:11155111)
Optimism Mainnet (eip155:10)
Binance Smart Chain (eip155:56)
Polygon Mainnet (eip155:137)
Blast Mainnet (eip155:238)
zkSync Mainnet (eip155:324)
zkSync Sepolia (eip155:300)
Base Mainnet (eip155:8453)
Base Sepolia (eip155:84532)
Immutable zkEVM (eip155:13371)
Arbitrum Mainnet (eip155:42161)
Avalanche Fuji (eip155:43113)
Avalanche Mainnet (eip155:43114)
Linea Mainnet (eip155:59144)
Scroll Mainnet (eip155:534352)
Zora Mainnet (eip155:7777777)
Degen Mainnet (eip155:666666666)
Solana Mainnet (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
Solana Devnet (solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1)

When using CAIP-2 chain formats in the URL (e.g. eip155:11155111), ensure the URL is URI encoded to accommodate the ":" character.

Headers

Name

Type

Description

Authorization*

String

Bearer <Client API Key>

Content-Type*

String

application/json

Query Parameters

Name

Type

Description

chainId*

String

Body Parameters

Name

Type

Description

to*

String

The recipient's address.

gas

String

The gas limit provided for the transaction.

gasPrice

String

The price per unit of gas the sender is willing to pay.

maxFeePerGas

String

The maximum total fee per gas unit the sender is willing to pay.

maxPriorityFeePerGas

String

The maximum priority fee per gas unit the sender is willing to pay.

value

String

The amount of native token to send with the transaction.

data

String

The input data to send with the transaction (used for contract calls).

operationType

"validation", "simulation", or "all"

Default: "all"

The operation to perform with the transaction.

Name

Type

Description

transactions*

String[]

An array of base58 encoded serialized transactions.

operationType

"validation", "simulation", or "all"

Default: "all"

The operation to perform with the transaction.

Example Response

{
  "chain": "ethereum",
  "validation": {
    "status": "Success",
    "resultType": "Malicious",
    "description": "A known malicious address is involved in the transaction",
    "reason": "raw_ether_transfer",
    "classification": "known_malicious",
    "features": []
  },
  "simulation": {
    "status": "Success",
    "assetsDiffs": {
      "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14": [
        {
          "asset": {
            "type": "NATIVE",
            "chainName": "sepolia",
            "decimals": 18,
            "chainId": 11155111,
            "logoUrl": "https://cdn.blockaid.io/chain/sepolia",
            "name": "Sepolia Ether",
            "symbol": "ETH"
          },
          "in": [
            {
              "summary": "Received 0 ETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ],
          "out": []
        },
        {
          "asset": {
            "type": "ERC20",
            "address": "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14",
            "logoUrl": "https://cdn.blockaid.io/token/0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14/ethereum-sepolia",
            "decimals": 18,
            "name": "Wrapped Ether",
            "symbol": "WETH"
          },
          "in": [],
          "out": [
            {
              "summary": "Sent 0 WETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ]
        }
      ],
      "0x31A89E000E9029362213387FEDe26F7B543e9D1C": [
        {
          "asset": {
            "type": "NATIVE",
            "chainName": "sepolia",
            "decimals": 18,
            "chainId": 11155111,
            "logoUrl": "https://cdn.blockaid.io/chain/sepolia",
            "name": "Sepolia Ether",
            "symbol": "ETH"
          },
          "in": [],
          "out": [
            {
              "summary": "Sent 0 ETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ]
        },
        {
          "asset": {
            "type": "ERC20",
            "address": "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14",
            "logoUrl": "https://cdn.blockaid.io/token/0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14/ethereum-sepolia",
            "decimals": 18,
            "name": "Wrapped Ether",
            "symbol": "WETH"
          },
          "in": [
            {
              "summary": "Received 0 WETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ],
          "out": []
        }
      ]
    },
    "totalUsdDiff": {},
    "exposures": {},
    "totalUsdExposure": {},
    "addressDetails": {},
    "accountSummary": {
      "assetsDiffs": [
        {
          "asset": {
            "type": "NATIVE",
            "chainName": "sepolia",
            "decimals": 18,
            "chainId": 11155111,
            "logoUrl": "https://cdn.blockaid.io/chain/sepolia",
            "name": "Sepolia Ether",
            "symbol": "ETH"
          },
          "in": [],
          "out": [
            {
              "summary": "Sent 0 ETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ]
        },
        {
          "asset": {
            "type": "ERC20",
            "address": "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14",
            "logoUrl": "https://cdn.blockaid.io/token/0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14/ethereum-sepolia",
            "decimals": 18,
            "name": "Wrapped Ether",
            "symbol": "WETH"
          },
          "in": [
            {
              "summary": "Received 0 WETH",
              "value": "0.000000000000000001",
              "rawValue": "0x1"
            }
          ],
          "out": []
        }
      ],
      "exposures": [],
      "totalUsdExposure": {}
    }
  }
}

{
  "chain": "solana",
  "validation": {
    "status": "Success",
    "resultType": "Malicious",
    "reason": "known_attacker",
    "features": [
      {
        "description": "Account woN4W93ijGmYd9vdz1XujN4MkNvnhD1sXrvtRv3KHgD is known for being malicious"
      }
    ]
  },
  "simulation": {
    "accountAddress": "9G2CRh8pzicbRkiNLh8Xsp2DEP28UhwtHSyqetGYTCWD",
    "status": "Success",
    "accountSummary": {
      "assetsDiffs": [
        {
          "asset": {
            "type": "SOL",
            "decimals": 9
          },
          "in": [],
          "out": [
            {
              "usdPrice": "0.32128185400000003",
              "summary": "Lost approximately 0.32$",
              "value": "0.0021974",
              "rawV