Supported Blockchains and APIs

The availability of wallets endpoints varies by blockchain.

The following tables are organized by API category and list which endpoints are supported on each blockchain for both mainnet and testnet.

Developer-controlled wallets

The following tables group developer-controlled wallets endpoints by API category and show which blockchains support them.

Wallets API

Select the tab that matches the first letter range of your blockchain name to see supported wallet endpoints.

A - B

	Aptos	Arbitrum	Avalanche	Base
Create developer wallets	Yes	Yes	Yes	Yes
List developer wallets Retrieve a developer wallet	Yes	Yes	Yes	Yes
Fetch balances for a wallet	Yes	Yes	Yes	Yes
Fetch NFTs for a wallet	No	Yes	Yes	Yes

E - P

	Ethereum	Optimism	Polygon
Create developer wallets	Yes	Yes	Yes
List developer wallets Retrieve a developer wallet	Yes	Yes	Yes
Fetch balances for a wallet	Yes	Yes	Yes
Fetch NFTs for a wallet	Yes	Yes	Yes

N - S

	Near	Solana	Unichain
Create developer wallets	Yes	Yes	Yes
List developer wallets Retrieve a developer wallet	Yes	Yes	Yes
Fetch balances for a wallet	No	Yes	Yes
Fetch NFTs for a wallet	No	Yes	Yes

Other

	Other EVM blockchains
Create developer wallets	Yes, if blockchain value is EVM or EVM-TEST
List developer wallets Retrieve a developer wallet	Yes
Fetch balances for a wallet	No
Fetch NFTs for a wallet	No

Transactions API

Select the tab that matches the first letter range of your blockchain name to see supported transactions endpoints.

A - B

	Aptos	Arbitrum	Avalanche	Base
Create a transfer Validate an address	Yes	Yes	Yes	Yes
Accelerate a transaction Cancel a transaction	No	No	Yes	Yes
Create a contract execution Estimate contract execution fees	Limited*	Yes	Yes	Yes
List transactions Retrieve a transaction Estimate transfer fees	Yes	Yes	Yes	Yes

*Note: Limited support for contract execution on Aptos

For Aptos, the contract execution endpoints are available only for batch transfers, and requires fixed values for abiFunctionSignature and contractAddress.

The following sample request body shows the required values.

JSON

{
  "idempotencyKey": "{{$YourUUID}}",
  "walletId": "639ff7f1-2fed-5de4-9976-c1706ca1ef88",
  "feeLevel": "MEDIUM",
  "abiFunctionSignature": "aptos_account::batch_transfer_fungible_assets(metadata:object::Object<fungible_asset::Metadata>,recipients:vector<address>,amounts:vector<u64>)",
  "abiParameters": [
    "0x69091fbab5f7d635ee7ac5098cf0c1efbe31d68fec0f2cd565e8d168daf52832",
    [
      "0xe78568bcfc30070fae04c1c4ba267eecc228e077672e18086baa042cbfb0ba70",
      "0xb8019c3e505fafe00edd1ba95c34f3f78e957da668c23ecb56ccd3a59ee8f21e"
    ],
    ["1", "1"]
  ],
  "contractAddress": "0x1",
  "refId": "aptos-testnet-contractExecution",
  "entitySecretCiphertext": "{{entity-secret-ciphertext}}"
}

E - P

	Ethereum	Optimism	Polygon
Create a transfer Validate an address	Yes	Yes	Yes
Accelerate a transaction Cancel a transaction	Yes	Yes	Yes
Create a contract execution Estimate contract execution fees	Yes	Yes	Yes
List transactions Retrieve a transaction Estimate transfer fees	Yes	Yes	Yes

N - S

	Near	Solana	Unichain
Create a transfer Validate an address	No	Yes	Yes
Accelerate a transaction Cancel a transaction	No	No	Yes
Create a contract execution Estimate contract execution fees	No	No	Yes
List transactions Retrieve a transaction Estimate transfer fees	No	Yes	Yes

Other

	Other EVM blockchains
Create a transfer Validate an address	Yes
Accelerate a transaction Cancel a transaction	No
Create a contract execution Estimate contract execution fees	No
List transactions Retrieve a transaction Estimate transfer fees	No

Signing API

Select the tab that matches the first letter range of your blockchain name to see supported signing endpoints.

To sign transactions with an EVM-TESTNET wallet, use the appropriate chain ID. If you’re on mainnet, you can use an EVM wallet to sign transactions on any EVM-compatible chain.

A - B

	Aptos	Arbitrum	Avalanche	Base
Sign message	Yes	Yes	Yes	Yes
Sign typed data	No	Yes	Yes	Yes
Sign transaction	No	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only
Sign delegate action	No	No	No	No

E - P

	Ethereum	Optimism	Polygon
Sign message	Yes	Yes	Yes
Sign typed data	Yes	Yes	Yes
Sign transaction	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only
Sign delegate action	No	No	No

N - S

	Near	Solana	Unichain
Sign message	No	Yes	Yes
Sign typed data	No	No	Yes
Sign transaction	Yes	Yes	EVM, EVM-TESTNET wallets only
Sign delegate action	Yes	No	No

Other

	Other EVM chains
Sign message	Yes
Sign typed data	Yes
Sign transaction	Yes
Sign delegate action	No

Token Lookup API

The retrieve a developer token endpoint is available for all supported chains except Near.

User-controlled wallets

The following tables group user-controlled wallets endpoints by API category and show which blockchains support them.

PIN Authentication API

The create a challenge to initialize a user endpoint is available on all supported blockchains.

Wallets API

Select the tab that matches the first letter range of your blockchain name to see supported wallet endpoints.

A - B

	Aptos	Arbitrum	Avalanche	Base
Create a user wallet Retrieve a user wallet List user wallets	Yes	Yes	Yes	Yes
Fetch balance for a wallet	Yes	Yes	Yes	Yes
Fetch NFTs for a wallet	No	Yes	Yes	Yes

E - P

	Ethereum	Optimism	Polygon
Create a user wallet Retrieve a user wallet List user wallets	Yes	Yes	Yes
Fetch balance for a wallet	Yes	Yes	Yes
Fetch NFTs for a wallet	Yes	Yes	Yes

N - S

	Near	Solana	Unichain
Create a user wallet Retrieve a user wallet List user wallets	No	Yes	Yes
Fetch balance for a wallet	No	Yes	Yes
Fetch NFTs for a wallet	No	Yes	Yes

Other

	Other EVM chains
Create a user wallet Retrieve a user wallet List user wallets	Yes
Fetch balance for a wallet	No
Fetch NFTs for a wallet	No

Transactions API

Select the tab that matches the first letter range of your blockchain name to see supported transaction endpoints.

A - B

	Aptos	Arbitrum	Avalanche	Base
Create challenge for transfer	Yes	Yes	Yes	Yes
Create challenge to accelerate transaction Create challenge to cancel transaction	No	No	Yes	Yes
Create challenge to execute contract Estimate contract execution fees	Limited*	Yes	Yes	Yes
Estimate transfer fees	Yes	Yes	Yes	Yes
List transactions Retrieve a transaction	Yes	Yes	Yes	Yes
Validate an address	Yes	Yes	Yes	Yes

*Note: Limited support for contract execution on Aptos

For Aptos, the contract execution endpoints are available only for batch transfers, and requires fixed values for abiFunctionSignature and contractAddress.

The following sample request body shows the required values.

JSON

{
  "idempotencyKey": "{{$YourUUID}}",
  "walletId": "639ff7f1-2fed-5de4-9976-c1706ca1ef88",
  "feeLevel": "MEDIUM",
  "abiFunctionSignature": "aptos_account::batch_transfer_fungible_assets(metadata:object::Object<fungible_asset::Metadata>,recipients:vector<address>,amounts:vector<u64>)",
  "abiParameters": [
    "0x69091fbab5f7d635ee7ac5098cf0c1efbe31d68fec0f2cd565e8d168daf52832",
    [
      "0xe78568bcfc30070fae04c1c4ba267eecc228e077672e18086baa042cbfb0ba70",
      "0xb8019c3e505fafe00edd1ba95c34f3f78e957da668c23ecb56ccd3a59ee8f21e"
    ],
    ["1", "1"]
  ],
  "contractAddress": "0x1",
  "refId": "aptos-testnet-contractExecution",
  "entitySecretCiphertext": "{{entity-secret-ciphertext}}"
}

E - P

	Ethereum	Optimism	Polygon
Create challenge for transfer	Yes	Yes	Yes
Create challenge to accelerate transaction Create challenge to cancel transaction	Yes	Yes	Yes
Create challenge to execute contract Estimate contract execution fees	Yes	Yes	Yes
Estimate transfer fees	Yes	Yes	Yes
List transactions Retrieve a transaction	Yes	Yes	Yes
Validate an address	Yes	Yes	Yes

N - S

	Near	Solana	Unichain
Create challenge for transfer	No	Yes	Yes
Create challenge to accelerate transaction Create challenge to cancel transaction	No	No	Yes
Create challenge to execute contract Estimate contract execution fees	No	No	Yes
Estimate transfer fees	No	Yes	Yes
List transactions Retrieve a transaction	No	Yes	Yes
Validate an address	No	Yes	Yes

Other

	Other EVM chains
Create challenge for transfer	No
Create challenge to accelerate transaction Create challenge to cancel transaction	No
Create challenge to execute contract Estimate contract execution fees	No
Estimate transfer fees	No
List transactions Retrieve a transaction	Yes
Validate an address	Yes

Signing API

Select the tab that matches the first letter range of your blockchain name to see supported signing endpoints.

A - B

	Aptos	Arbitrum	Avalanche	Base
Create challenge to sign message	Yes	Yes	Yes	Yes
Create challenge to sign typed data	No	Yes	Yes	Yes
Create challenge to sign transaction	No	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only

E - P

	Ethereum	Optimism	Polygon
Create challenge to sign message	Yes	Yes	Yes
Create challenge to sign typed data	Yes	Yes	Yes
Create challenge to sign transaction	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only	EVM, EVM-TESTNET wallets only

N - S

	Near	Solana	Unichain
Create challenge to sign message	No	Yes	Yes
Create challenge to sign typed data	No	No	Yes
Create challenge to sign transaction	No	Yes	EVM, EVM-TESTNET wallets only

Other

	Other EVM chains
Create challenge to sign message	Yes
Create challenge to sign typed data	Yes
Create challenge to sign transaction	Yes

Token Lookup API

The retrieve a user token endpoint is available on all supported blockchains except Near.