Note: On Aptos, balance-related endpoints only return tokens stored in primary storage. Tokens held in AIP-21 secondary storage are excluded from balance queries and deposit notifications to prevent incorrect or misleading results from secondary storage-based state changes.
This topic lists the support for Circle API endpoints on the various blockchains you can use with Circle Developer Services. The tables in each section list the Developer Services APIs and endpoints for a product, and indicate whether they are supported on the specified blockchains. For each blockchain included, support applies to both the Testnet and Mainnet networks for that chain.
| API Category | Endpoint | Polygon | Ethereum | Avalanche | Solana | Arbitrum | Near | Aptos | Unichain | Base | Optimism | Other EVM chains |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Users and PINs | POST /user/initialize | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Wallets | POST /user/wallets | Yes | Yes | Yes | Yes | Yes | Coming soon | Yes | Yes | Yes | Yes | Yes |
| GET /wallets | Yes | Yes | Yes | Yes | Yes | Coming soon | Yes | Yes | Yes | Yes | Yes | |
| GET /wallets/{id} | Yes | Yes | Yes | Yes | Yes | Coming soon | Yes | Yes | Yes | Yes | Yes | |
| PUT /wallets/{id} | Yes | Yes | Yes | Yes | Yes | Coming soon | Yes | Yes | Yes | Yes | Yes | |
| GET /wallets/{id}/balances | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| GET /wallets/{id}/nfts | Yes | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes | No | |
| Transactions | POST /user/transactions/transfer | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No |
| POST /user/transactions/{id}/accelerate | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes | No | |
| POST /user/transactions/{id}/cancel | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes | No | |
| POST /user/transactions/contractExecution | Yes | Yes | Yes | Coming Soon | Yes | No | Limited * | Yes | Yes | Yes | No | |
| GET /transactions | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| GET /transactions/{id} | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| POST /transactions/transfer/estimateFee | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| POST /transactions/contractExecution/estimateFee | Yes | Yes | Yes | Coming Soon | Yes | No | Limited * | Yes | Yes | Yes | No | |
| POST /transactions/validateAddress | Yes | Yes | Yes | Yes | Yes | Coming soon | Yes | Yes | Yes | Yes | Yes | |
| Token Lookup | GET /tokens/{id} | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
| Signing | POST /user/sign/message | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
| POST /user/sign/typedData | Yes | Yes | Yes | No | Yes | No | No | Yes | Yes | Yes | Yes | |
| POST /user/sign/transaction | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes | Yes, for EVM or EVM-TEST wallets | Coming soon | No | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes | |
| POST /developer/sign/delegateAction | No | No | No | No | No | Coming soon | No | No | No | No | No |
* Contract execution on Aptos
The /user/transactions/contractExecution endpoint is available on Aptos only
for batch transfers, and requires fixed values for abiFunctionSignature and
contractAddress.
The following sample request payload shows the required values.
JSON
{
"idempotencyKey": "{{$randomUUID}}",
"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}}"
}
For EVM-TESTNET wallets, you can sign transactions on the blockchains listed
in Chain IDs for Signing Transactions. Once you
transition to Mainnet, you can use your EVM wallet to sign transactions on
any EVM-compatible chains.
| API Category | Endpoint | Polygon | Ethereum | Avalanche | Solana | Arbitrum | Near | Aptos | Unichain | Base | Optimism | Other EVM blockchains |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wallets | POST /developer/wallets | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes, if blockchain value is EVM or EVM-TEST |
| GET /wallets | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| GET /wallets/{id} | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| PUT /wallets/{id} | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| GET /wallets/{id}/balances | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| GET /wallets/{id}/nfts | Yes | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes | No | |
| Transactions | POST /developer/transactions/transfer | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No |
| POST /developer/transactions/{id}/accelerate | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes | No | |
| POST /developer/transactions/{id}/cancel | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes | No | |
| POST /developer/transactions/contractExecution | Yes | Yes | Yes | Coming soon | Yes | No | Limited * | Yes | Yes | Yes | No | |
| GET /transactions | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| GET /transactions/{id} | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| POST /transactions/transfer/estimateFee | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | |
| POST /transactions/contractExecution/estimateFee | Yes | Yes | Yes | Coming soon | Yes | No | Limited * | Yes | Yes | Yes | No | |
| POST /transactions/validateAddress | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| Token Lookup | GET /tokens/{id} | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No |
| Signing | POST /developer/sign/message | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
| POST /developer/sign/typedData | Yes | Yes | Yes | No | Yes | No | No | Yes | Yes | Yes | Yes | |
| POST /developer/sign/transaction | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes | Yes, for EVM or EVM-TEST wallets | Yes | No | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes, for EVM or EVM-TEST wallets | Yes | |
| POST /developer/sign/delegateAction | No | No | No | No | No | Yes | No | No | No | No | No |
* Contract execution on Aptos
The /developer/transactions/contractExecution endpoint is available on Aptos
only for batch transfers, and requires fixed values for abiFunctionSignature
and contractAddress.
The following sample request payload shows the required values.
JSON
{
"idempotencyKey": "{{$randomUUID}}",
"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}}"
}
| API Category | Endpoint | Polygon | Ethereum | Avalanche | Solana | Arbitrum | Near | Aptos | Unichain | Base | Optimism | Other EVM chains |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deploy / Import | POST /contracts/import | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No |
| POST /contracts/deploy | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No | |
| POST /contracts/deploy/estimateFee | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No | |
| Interact | POST /contracts/{id}/read | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No |
| View / Update | GET /contracts | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No |
| GET /contracts/{id} | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No | |
| PATCH /contracts/{id} | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No | |
| Templates | POST /templates/{id}/deploy | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No |
| POST /templates/{id}/deploy/estimateFee | Yes | Yes | Yes | Coming soon | Yes | No | No | No | Yes | Yes | No |
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