⚠️ SDK Deprecation Notice

Status: Archived & Deprecated
Effective Date: 1st April, 2025

This SDK has been officially deprecated and is no longer actively maintained or updated.

To give you more flexibility, we recommend generating your own SDK using our official OpenAPI specification, available for download from the Crypto APIs Developer Portal:

👉 https://developers.cryptoapis.io/

💡 Recommended Approach

You can easily generate SDKs in most major programming languages using tools such as:

Simply use our OpenAPI JSON to create SDKs tailored to your specific needs.

This repository will remain available for reference but is no longer supported.

For questions, please contact us via our official support channels.

Thank you for your understanding and for building with Crypto APIs!

Java SDK for CryptoAPIs.io

You can get API key here.

Getting started

Add the relevant dependency to your project:

Maven

Java 8:

<dependency>
    <groupId>io.cryptoapis</groupId>
    <artifactId>cryptoapis-java-client</artifactId>
    <version>1.3.0</version>
</dependency>

Gradle

Java 8:

compile("io.cryptoapis:cryptoapis-java-client:1.3.0")

How to use

final String apiKey = "your API key";
CryptoApis caClient = new CryptoApis(apiKey);

// Choose API connection and network
final Exchanges exchanges = caClient.connectToExchanges();

final Ethereum eth = caClient.connectToEth(CryptoApisConstants.ETHEREUM_MAINNET);

final Bitcoin btc = caClient.connectToBtc(CryptoApisConstants.MAINNET);

final Bitcoin_Cash bch = caClient.connectToBch(CryptoApisConstants.MAINNET);

final Litecoin ltc = caClient.connectToLtc(CryptoApisConstants.MAINNET);

final Dogecoin doge = caClient.connectToDoge(CryptoApisConstants.MAINNET);

Ethereum examples

Generate new address

final AddressService ethAddressService = eth.getAddressService();

ApiResponse res = ethAddressService.generateNewAddress();
System.out.println(res.getResponse());

It will print the following:

{
  "payload": {
      "address": "0xb8e51b75a8ab6995b2e11938fed3b05837ec5fa2",
      "privateKey": "5d06b11d276e169d2fa2ced94d327902ee954ff47e31bcbf0aa4957a829a0aed",
      "publicKey": "303727940fca8f9b1f580908246aa980f9ee2aa9ecc379cbaf6a80f0050c1a2cdd7a467c1e564a2e272fb5b1958320ca11ca79b9cdfaf2bd74e6decd2592daa8"
  }
}

Generate new account

final String password = "your password - l3tt3rs and d1g1ts";
ApiResponse res = ethAddressService.generateAccount(password);
System.out.println(res.getResponse());

If will print the following:

{
    "payload": {
        "success": "keystore saved",
        "address": "0x14eefa06e6f617ba9df050d7f9415e5bd0f11d34"
    }
}

If an error occurs, it will print the following (e.g. your password is weak):

{
  "meta":
    {
      "error":
        {
          "message": "Password is too weak! It should be at least 7 characters and should contain at least one letter and one digit",
          "code": 15
        }
    },
  "statusCode": 400
}

Get address balance

final String address = "0xd6cB6744B7f2Da784c5aFd6B023D957188522198";
ApiResponse res = ethAddressService.getAddressBalance(address);
System.out.println(res.getResponse());

{
	"payload": {
		"chain": "ETH.mainnet",
		"address": "0xd6cb6744b7f2da784c5afd6b023d957188522198",
		"balance": "1152.66525530903683",
		"txs_count": 146347,
		"from": 47476,
		"to": 98871
	}
}

Get block info by number

final BlockService ethBlockService = eth.getBlockService();
ApiResponse res = ethBlockService.getBlock(6123321);
System.out.println(res.getResponse());

{
    "payload": {
        "chain": "ETH.mainnet",
        "height": 6123321,
        "hash": "0xdd9cda46ecc76633504931d5f7fd4bbff4c39ca3d6d173550f37789a863135b2",
        "parent_hash": "0xa19c2538a3ffa5077645dc1ecef2ef99fcbf9707b106df5536244e87b13d06bc",
        "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
        "gas_used": "7992049",
        "size": "5332 bytes",
        "timestamp": 1533919094,
        "date": "2018-08-10 16:38:14 +UTC",
        "transactions": 36,
        "difficulty": "3544115802240984",
        "total_difficulty": "5917863156620322787518",
        "gas_limit": "8000029",
        "nonce": "0x20f173b005ccec35",
        "mined_by": "0xea674fdde714fd979de3edf0f56aa9716b898ec8 (Ethermine) in 3 secs",
        "uncles": [],
        "extra_data": "0x65746865726d696e652d657538",
        "confirmations": 1455815,
        "total_fees": "100689146837974998"
    }
}

Get an existing transaction by a given hash:

final TransactionService ethTransactionService = eth.getTransactionService();
ApiResponse res = ethTransactionService.getTx("0xe7abcffe85acf8e6d3186f1378d201b0857c41d300885c9c3c2f2c72afaecbcd");
System.out.println(res.getResponse());

If the queried transaction exists it will print the following:

 {
     "payload": {
         "chain": "ETH.mainnet",
         "status": "0x1",
         "index": 1,
         "hash": "0xe7abcffe85acf8e6d3186f1378d201b0857c41d300885c9c3c2f2c72afaecbcd",
         "value": 0,
         "from": "0xf51a8cee8d3e9dc1764d2b6ef3fad973ebdb0ec5",
         "to": "0x2f141ce366a2462f02cea3d12cf93e4dca49e4fd",
         "date": "2018-12-06 10:09:38 +UTC",
         "block_hash": "0x503c138005347065a606d3d0d02b3528790227b3a17b6fd6b54ce54ed79f144a",
         "block_number": 6836009,
         "gas": "36657",
         "gas_price": "97000000000",
         "gas_used": "36657",
         "nonce": 573,
         "confirmations": 743129,
         "token_transfers": [
             {
                 "from": "0xf51a8cee8d3e9dc1764d2b6ef3fad973ebdb0ec5",
                 "to": "0xcfbd73a1404a2cbf956e9e506ff5006601bcd2a4",
                 "value": "39.000",
                 "tokenName": "Free Coin",
                 "symbol": "FREE",
                 "tokenType": "ERC-20"
             }
         ],
         "input": "0xa9059cbb000000000000000000000000cfbd73a1404a2cbf956e9e506ff5006601bcd2a40000000000000000000000000000000000000000000000021d3bd55e803c0000"
     }
 }

If transaction is not found, the following message will be printed:

  {
    "meta":
      {
        "error":
          { 
            "message": "Transaction not found",
            "code": 21
           }
       },
    "statusCode": 404
  }

Create payment forwarding using an account

final PaymentService ethPaymentService = eth.getPaymentService();
ApiResponse res = ethPaymentService.createPFPwd("0x7857af2143cb06ddc1dab5d7844c9402e89717cb", "0x4ab47e7b0204d6b3bf0e956db14e63142b9b5ab8", 
            "https://somepoint.com", "your-password-123", 6, 11000000000L, 21000);
System.out.println(res.getResponse());

The response will be as follows:

{
    "payload": {
        "uuid": "7f0c4666-af1f-44a3-b5f5-1a3c2b904283",
        "from": "0x7857af2143cb06ddc1dab5d7844c9402e89717cb",
        "to": "0x4ab47e7b0204d6b3bf0e956db14e63142b9b5ab8",
        "confirmations": 2,
        "callback": "http://somepoint.com",
        "gasPrice": "11000000000",
        "gasLimit": "21000"
    }
}

If password is misspelled the following will be printed:

  {
    "meta":
      {
        "error":
          { 
            "message": "Wrong password",
            "code": 19
           }
       },
    "statusCode": 400
  }

Create, sign and send a transaction to the blockchain

final TransactionService ethTransactionService = eth.getTransactionService();
final String from = "0xc438d912235ff5facc22c502e5bd6dc1ae14a7ff";
final String to = "0x0cb1883c01377f45ee5d7448a32b5ac1709afc11";
final BigInteger gasPrice = BigInteger.valueOf(8000000000L);
final BigInteger gasLimit = BigInteger.valueOf(30000);
final String password = "your-password-123";
final BigDecimal value = BigDecimal.valueOf(0.012);
final hexData = "0x123"; //  a hexadecimal value
ApiResponse res = ethTransactionService.createTxKeyStore(from, to, gasPrice, gasLimit, value, hexData, password);
System.out.println(res.getResponse());

{
    "payload": {
        "hex": "0xfebf0691cc92f67ace032897a83587c44c5b2ef437341c6cfd5dbf1f8f4c288d"
    }
}

Bitcoin, Litecoin and Bitcoin Cash examples

Generate new address

final AddressService btcAddressService = btc.getAddressService();
ApiResponse res = btcAddressService.generateNewAddress();
System.out.println(res.getResponse());

It will print the following:

{
    "payload": {
        "privateKey": "2edfe66bed8a17e58cd51a3da72f63d0a6b0ca8775d237772f88e42c27f992e0",
        "publicKey": "037039ac5fac75ab9eb8bdbde8a9ba2dc5d7576b711e69a241a5e2dfdbc71647a5",
        "address": "1P2CyS7TPqHPQeQExDXSK25hPs2jCk3c46",
        "wif": "Kxnq2zxvNatWtHbQzmakRdH21YNozFjD141s2mKpo21C6sVwa16e"
    }
}

Get block info by a given hash

final BlockService bchBlockService = bch.getBlockService();
final String blockHash = "000000000000000002dbd3af3c654b77ea277238b02df23d93ca6b3e4eedb295";
ApiResponse res = bchBlockService.getBlock(blockHash);
System.out.println(res.getResponse());

It will print the following:

{
    "payload": {
        "hash": "000000000000000002dbd3af3c654b77ea277238b02df23d93ca6b3e4eedb295",
        "size": 974324,
        "height": 419398,
        "version": 536870912,
        "versionHex": "20000000",
        "merkleroot": "67c988f47c40ef54c87d530be54b9a2ee2d575462beda0c920e23f44b2c24ff4",
        "time": "2016-07-05 13:07:56 UTC",
        "mediantime": "2016-07-05 12:15:24 UTC",
        "nonce": 3430795024,
        "bits": "180526fd",
        "difficulty": 213398925331.3239,
        "chainwork": "0000000000000000000000000000000000000000001eb413e634b72bd107f569",
        "previousblockhash": "0000000000000000039b2f5bf42183b25299c9ffb4a99111ea35819a701e84a2",
        "nextblockhash": "00000000000000000016e54e255f112a015c15f92dfd30f7f5259df6729280c7",
        "transactions": 1768,
        "tx": [
            "48d0c5e7d7f1004e4fda1ad02529b024d59e8d663486d9b9cad4fe92d3f9d63e",
            "2046a3a6affe4886c53060f5f5637b9369f188046b2ea2d3172ca99a0bcb7137",
            ...
            "14f18a93af7ffb3dacec0d419e68efa8a436068390691a5d1f54baedbab55a00"
        ],
        "confirmations": 0,
        "timestamp": 1467724076
    }
}

Get transactions by index and limit

final TransactionService ltcTransactionService = ltc.getTransactionService();
final int blockNumber = 553381;
Map<String, String> queries = new HashMap<>();
queries.put("index", "23");
queries.put("limit", "2");

ApiResponse res = ltcTransactionService.getTxByIdxAndLimit(blockNumber, queries);
System.out.println(res.getResponse());

{
	"payload": [{
		"txid": "cacb2282399e250bbbe60fbb49e62e60f0bd123563ff853730e038be8e4a116f",
		"hash": "cacb2282399e250bbbe60fbb49e62e60f0bd123563ff853730e038be8e4a116f",
		"index": 23,
		"version": 1,
		"size": 3190,
		"vsize": 3190,
		"locktime": 0,
		"time": "2014-04-22 03:48:34 UTC",
		"blockhash": "3334d66be09560433bda17f335c4c6d0017be0bc18a887f9596249c2123d3e15",
		"blockheight": 553381,
		"blocktime": "2014-04-22 03:48:34 UTC",
		"timestamp": 1398138514,
		"confirmations": 1055211,
		"txins": [{
			"txout": "ee9f6d825607b6ceb1482139a43394ef9b640383f12b809a046a9dae62f7bd5b",
			"vout": 1,
			"amount": "0.0139",
			"addresses": ["LeqLW7KgkYfaaz2DTSbzh2cZCm8LbUU1NX"],
			"script": {
				"asm": "304402204d6dde1a7f0db805eccafa7a401f4a6b47d6b144c02a40de8dc77d4743f9691e0220689c55f64912b9cb17387d49ac33326bb8200c81325c0ca257078b1123d40f7a[ALL] 036b503d5b9d37d295aa710179686696a26097c5ded86779d517d99d139e3268e8",
				"hex": "47304402204d6dde1a7f0db805eccafa7a401f4a6b47d6b144c02a40de8dc77d4743f9691e0220689c55f64912b9cb17387d49ac33326bb8200c81325c0ca257078b1123d40f7a0121036b503d5b9d37d295aa710179686696a26097c5ded86779d517d99d139e3268e8"
			},
			"votype": "pubkeyhash"
		  },
		 ...
		 {
			"txout": "72229f239e1e07de267310dafca1546d046b2ccb7a8ed97166377e0a029bc7a9",
			"vout": 1,
			"amount": "1.9639",
			"addresses": ["LhUwWyncweni85nat8g6b7YVKfNuJsxi3p"],
			"script": {
				"asm": "304502201dbaed3e5d9424df9f2c9fded04ff26462dabd94670bdbb343ae81eeaa1c4c8802210087d58c21bca9d8da42f498951afbb43aab1e97247111e13de5caacde994b4317[ALL] 033e300857f2b1751a96fb8dd2262b5a4cd5fd34958a485d5bc33e30fe0a66e6c0",
				"hex": "48304502201dbaed3e5d9424df9f2c9fded04ff26462dabd94670bdbb343ae81eeaa1c4c8802210087d58c21bca9d8da42f498951afbb43aab1e97247111e13de5caacde994b43170121033e300857f2b1751a96fb8dd2262b5a4cd5fd34958a485d5bc33e30fe0a66e6c0"
			},
			"votype": "pubkeyhash"
		}],
		"txouts": [{
			"amount": "40",
			"type": "pubkeyhash",
			"spent": true,
			"addresses": ["LTi2gMpBpV73VeiY3CiSqbkQ5QSeUP2GPC"],
			"script": {
				"asm": "OP_DUP OP_HASH160 5d1056fa8321e89a47d2718f659c320ea1b9851d OP_EQUALVERIFY OP_CHECKSIG",
				"hex": "76a9145d1056fa8321e89a47d2718f659c320ea1b9851d88ac",
				"reqsigs": 1
			}
		}, {
			"amount": "0.01000521",
			"type": "pubkeyhash",
			"spent": true,
			"addresses": ["LTKqrfL2kjgzBhMJ5JBcSfLY8Mm77FdLEg"],
			"script": {
				"asm": "OP_DUP OP_HASH160 58de278f79671418afb6dedca037ed28c8e88301 OP_EQUALVERIFY OP_CHECKSIG",
				"hex": "76a91458de278f79671418afb6dedca037ed28c8e8830188ac",
				"reqsigs": 1
			}
		}]
	}, {
		"txid": "79f9ff7ea230c4bd2a214cf37b577773a2bfe5b6827ca86258a7aa7c538f00ee",
		"hash": "79f9ff7ea230c4bd2a214cf37b577773a2bfe5b6827ca86258a7aa7c538f00ee",
		"index": 24,
		"version": 1,
		"size": 967,
		"vsize": 967,
		"locktime": 0,
		"time": "2014-04-22 03:48:34 UTC",
		"blockhash": "3334d66be09560433bda17f335c4c6d0017be0bc18a887f9596249c2123d3e15",
		"blockheight": 553381,
		"blocktime": "2014-04-22 03:48:34 UTC",
		"timestamp": 1398138514,
		"confirmations": 1055211,
		"txins": [{
			"txout": "61feafc03b11107e86c3f8e6699a75b87b766d7e222eb9664c1738d05eba74e2",
			"vout": 1,
			"amount": "0.00015",
			"addresses": ["LXwpBzPnMoMAcv4FKnZYXDZE1KkrYC4Dy2"],
			"script": {
				"asm": "304502206225d41fb743b045e3c8733525a4ae1c6c58a1461f690f722bc2655bdc8fb3e602210081ad463354073dacd8ed0d1da3f418258197508e68508fe54cf27d9299ea348f[ALL] 028b42eb7e6a01fc2cbd1c4a44a212cbd097e2084d70dab167f469e1356cb5116a",
				"hex": "48304502206225d41fb743b045e3c8733525a4ae1c6c58a1461f690f722bc2655bdc8fb3e602210081ad463354073dacd8ed0d1da3f418258197508e68508fe54cf27d9299ea348f0121028b42eb7e6a01fc2cbd1c4a44a212cbd097e2084d70dab167f469e1356cb5116a"
			},
			"votype": "pubkeyhash"
		}, 
		 ...
		 {
			"txout": "cacb2282399e250bbbe60fbb49e62e60f0bd123563ff853730e038be8e4a116f",
			"vout": 1,
			"amount": "0.01000521",
			"addresses": ["LTKqrfL2kjgzBhMJ5JBcSfLY8Mm77FdLEg"],
			"script": {
				"asm": "3045022057d48cdd2ba3eaf0c5b6fb04768170e50830f001ec2f476a0cf5e490e2673450022100b9a057699d913a2215b147a27e1c61b6b2d196a6a2aa7b5247f4e75259d51108[ALL] 02f442706d23bf3400d96ba54c9ab54a7ac0a15a4a969b5756ca72588c6c9c9963",
				"hex": "483045022057d48cdd2ba3eaf0c5b6fb04768170e50830f001ec2f476a0cf5e490e2673450022100b9a057699d913a2215b147a27e1c61b6b2d196a6a2aa7b5247f4e75259d51108012102f442706d23bf3400d96ba54c9ab54a7ac0a15a4a969b5756ca72588c6c9c9963"
			},
			"votype": "pubkeyhash"
		}],
		"txouts": [{
			"amount": "0.05",
			"type": "pubkeyhash",
			"spent": true,
			"addresses": ["LbonesQ7pYjfeX8SCnihs4Y53BRYkuxor7"],
			"script": {
				"asm": "OP_DUP OP_HASH160 b5e8223d2f49348c99f0b8a9971ccedd9a6fb3da OP_EQUALVERIFY OP_CHECKSIG",
				"hex": "76a914b5e8223d2f49348c99f0b8a9971ccedd9a6fb3da88ac",
				"reqsigs": 1
			}
		}, {
			"amount": "0.00014521",
			"type": "pubkeyhash",
			"spent": true,
			"addresses": ["LQgaa4x3Dh8bs1ZdB1LgrWWTAiwWK7QD4U"],
			"script": {
				"asm": "OP_DUP OP_HASH160 3be1c0903a68529c07f048b474c000208e82b619 OP_EQUALVERIFY OP_CHECKSIG",
				"hex": "76a9143be1c0903a68529c07f048b474c000208e82b61988ac",
				"reqsigs": 1
			}
		}]
	}],
	"meta": {
		"totalCount": 25,
		"index": 23,
		"limit": 2,
		"results": 2
	}
}

Create, sign and send a transaction to the blockchain

final TransactionService btcTransactionService = btc.getTransactionService();
CreateTransaction ct = new CreateTransaction();

List<CreateTransaction.Inputs> inputs = new ArrayList<>();
CreateTransaction.Inputs input1 = new CreateTransaction.Inputs();
input1.setAddress("mtFYoSowT3i649wnBDYjCjewenh8AuofQb");
input1.setValue(0.0003);
inputs.add(input1);

CreateTransaction.Inputs input2 = new CreateTransaction.Inputs();
input2.setAddress("mn6GtNFRPwXtW7xJqH8Afck7FbVoRi6NF1");
input2.setValue(0.001);
inputs.add(input2);

ct.setInputs(inputs);

List<CreateTransaction.Outputs> outputs = new ArrayList<>();
CreateTransaction.Outputs output = new CreateTransaction.Outputs();
output.setAddress("mrnWMV41vXivQX9yiY9ACSK5uPo3TfJdv9");
output.setValue(0.0013);
outputs.add(output);

ct.setOutputs(outputs);

//setting fee value is mandatory, however setting fee address is optional
CreateTransaction.Fee fee = new CreateTransaction.Fee();
fee.setValue(0.00145);
fee.setAddress("mmskWH7hG9CJNzb16JaVFJyWdgAwcVEAkz");
ct.setFee(fee);

final List<String> wifs = new ArrayList<String>(){{
   add("cUGddnJmuzfzpWXNwt1SRnQ8GMqZdQ1vg8BtwjG8f275pvExPzaX");
   add("cSEjySAREyai8eQhgoqixzmxCeSP8QtbwHxptL8ijofg68ZMjoud");
   add("cPo4XXgsnkVdg93GqR8M1iCDGk6Tgywk5gng4rSpoMVzpQx13WmA");
}};

ApiResponse res = btcTransactionService.newTx(ct, wifs);
System.out.println(res.getResponse());

{
	"payload": {
		"txid": "fa4ea6eb1947ae94040fd416afd8262016e6f8c0e69bae94c1dd9a4a80a92b7e"
	}
}

Create wallet

final WalletService ltcWalletService = ltc.getWalletService();
final List<String> addresses = new ArrayList<String>(){{
         add("LLrxRzrNVxyVQ2DjuMoCNEMN2YM2nkwr1K");
         add("LiLGYuVLV4HExGYizwZEjTpTG2apN4or8M");
         add("LP3LrpZDjCDhysQarq4STG97sH8a8Yf748");
      }};
final String walletName = "demoWallet";
ApiResponse res = ltcWalletService.createWallet(addresses, walletName);
System.out.println(res.getResponse());

{
	"payload": {
		"walletName": "demoWallet",
		"addresses": ["LLrxRzrNVxyVQ2DjuMoCNEMN2YM2nkwr1K", "LiLGYuVLV4HExGYizwZEjTpTG2apN4or8M", "LP3LrpZDjCDhysQarq4STG97sH8a8Yf748"],
		"hd": false
	}
}

Create HD wallet

final WalletService bchWalletService = bch.getWalletService();
final String walletName = "demoHDWallet";
final int addressCount = 5;
final String password = "your password - l3tt3rs and d1g1ts";
ApiResponse res = bchWalletService.createHDWallet(walletName, addressCount, password);
System.out.println(res.getResponse());

{
	"payload": {
		"walletName": "demoHDWallet",
		"addresses": [{
			"address": "bitcoincash:qz5c8fpj25hz8wmnqy2k04enwvd937k89ur7hcft6e",
			"legacy": "1GTJu2NexADzFcFhvqozHczVP7h1uh1WzN",
			"path": "M/0H/0/0"
		}, {
			"address": "bitcoincash:qr6rvvvh4u8v9vaq4kuf7rh00r8smu78cy3sycwmdq",
			"legacy": "1PGGoFdvDQQmEZuTuwNQFo7vwfWhpAi2Ji",
			"path": "M/0H/0/1"
		}, {
			"address": "bitcoincash:qzr6tqax9hhr77x9a2ttffc6ktgal2rtwyprcsha9s",
			"legacy": "1DNEW2gwyL2XnTLgCcsYt1kM9KMpFz3ni7",
			"path": "M/0H/0/2"
		}, {
			"address": "bitcoincash:qzhcldlhnk6s9gjmgx6nkypxrwfjslu7r5yph59svl",
			"legacy": "1H1HRKHVS6pMHCcbYDTVegwyFgj77Lz27U",
			"path": "M/0H/0/3"
		}, {
			"address": "bitcoincash:qpkv6ufumrka40ca8c8px8kftnj48tch7u9afwd65e",
			"legacy": "1AvJ66sw83hC9v1KZBG7rTYNxpxKwrsdTN",
			"path": "M/0H/0/4"
		}],
		"hd": true
	}
}

Add address to wallet

final String walletName = "demoWallet";
ApiResponse res = ltcWalletService.generateAddressWallet(walletName);
System.out.println(res.getResponse());

{
	"payload": {
		"wallet_info": {
			"walletName": "demoWallet",
			"addresses": ["LLrxRzrNVxyVQ2DjuMoCNEMN2YM2nkwr1K", "LiLGYuVLV4HExGYizwZEjTpTG2apN4or8M", "LP3LrpZDjCDhysQarq4STG97sH8a8Yf748", "LfX7oHnE37ch1KYmn8RFbtfNbFWnngmYW7"],
			"hd": false
		},
		"address_info": {
			"privateKey": "4442839f4f27fff266ce22bcfb1edd8135792a52d086649874007bcc8eb23f71",
			"publicKey": "02737644477a499f487d07359a35e6dda11afc0f656ec5cbe693ae02060b91ef06",
			"address": "LfX7oHnE37ch1KYmn8RFbtfNbFWnngmYW7",
			"wif": "T5LfYR3EKoidySNmsaALbpWPQDJZyAFAsZXP4B9Gd19kMsukJC1v"
		}
	}
}

Create Transaction Using HDWallet

final Bitcoin_Cash bch = ca.connectToBch("testnet");
final TransactionService transactionService = bch.getTransactionService();

final String walletName = "demohdwallet";
final String password = "password";

List<CreateTransaction.Outputs> outputs = new ArrayList<>();
CreateTransaction.Outputs output = new CreateTransaction.Outputs();
output.setAddress("my4TmbbhJCLJB9q1eHUHQWJfbbJoYdLwtE");
output.setValue(0.003);
outputs.add(output);

CreateTransaction.Fee fee = new CreateTransaction.Fee();
fee.setValue(0.00023141);

ApiResponse response = transactionService.newTxWithHDWallet(walletName, password, null, outputs, fee, 0);
System.out.println(response.getResponse());

{
  "payload": { 
       "txid":"1a6bffc375ecd14eb8fa85308baae86a68278cb12d78a2aedbb014c10fb080a1"
   }
}

Create Confirmed Transaction Webhook

final WebhookService btcWebhookService = btc.getWebhookService();
final String url = "https://somepoint.com";
final int confirmations = 6;
final String tx="909d545c8ca26a754118f88939ff38a76dad2a06fdff6117c4b6b029f6330625";

ApiResponse res = btcWebhookService.createConfirmedTxWh(url, tx, confirmations);
System.out.println(res.getResponse());

{
	"payload": {
		"uuid": "de6c3898-b6a0-44be-8ff8-f2beb83dd09f",
		"event": "CONFIRMED_TX",
		"transaction": "909d545c8ca26a754118f88939ff38a76dad2a06fdff6117c4b6b029f6330625",
		"confirmations": 6,
		"url": "https://somepoint.com"
	}
}

Get blockchain info

final BlockchainService service = doge.getBlockchainService();
final ApiResponse res = service.getBlockchainInfo();

System.out.println(res.getResponse());

{
    "payload": {
        "difficulty": 6329995.2247605,
        "headers": 2745874,
        "chain": "main",
        "chainWork": "0000000000000000000000000000000000000000000001eedd07ae5c113b9d92",
        "blocks": 2745874,
        "bestBlockHash": "c895d63eb2f7e306bc6d1df85e085d13ed83509dc70ba9ce3f84564461bbd234",
        "currency": "DOGE",
        "transactions": 12687555,
        "verificationProgress": 0.99999946
    }
}

Exchanges examples

Get specific rate - ExchangeRates

final ExchangeRatesService exchangeRatesService = exchanges.getExchangeRatesService();
final String baseAsset = "USD";
final String quoteAsset = "BTC";

ApiResponse res = exchangeRatesService.getSpecificRate(baseAsset, quoteAsset, null);
System.out.println(res.getResponse());

{
	"payload": {
		"weightedAveragePrice": 0.0001908939768173263,
		"medianPrice": 0.0001914660979263376,
		"weightedMedianAveragePrice": 0,
		"timestamp": 1555484749,
		"baseAsset": "USD",
		"quoteAsset": "BTC"
	}
}

List all exchanges - Metadata

final MetadataService metadataService = exchanges.getMetadataService();
final Map<String, String> params = new HashMap<String, String>() {{
    put("limit", "5");
}};

ApiResponse res = metadataService.getExchangesList(params);
System.out.println(res.getResponse());

{
	"meta": {
		"totalCount": 25,
		"index": 0,
		"limit": 5,
		"results": 5
	},
	"payload": [{
		"exchangeId": "BINANCE",
		"name": "Binance",
		"website": "https:\/\/www.binance.com\/",
		"_id": "5b1ea9d21090c200146f7362"
	}, {
		"exchangeId": "COINBASE",
		"name": "GDAX",
		"website": "https:\/\/www.gdax.com\/",
		"_id": "5b1ea9d21090c200146f7363"
	}, {
		"exchangeId": "BITSTAMP",
		"name": "Bitstamp Ltd.",
		"website": "https:\/\/www.bitstamp.net\/",
		"_id": "5b1ea9d21090c200146f7364"
	}, {
		"exchangeId": "BITTREX",
		"name": "Bittrex",
		"website": "https:\/\/bittrex.com\/",
		"_id": "5b1ea9d21090c200146f7366"
	}, {
		"exchangeId": "POLONIEX",
		"name": "POLONIEX",
		"website": "https:\/\/poloniex.com\/",
		"_id": "5b1ea9d21090c200146f7367"
	}]
}

Get latest data - OHLCV

final OHLCVService ohlcvService = exchanges.getOhlcvService();
final String symbolID = "5bfc325e9c40a100014db989";
final Map<String, String> params = new HashMap<String, String>(){{
            put("period", "1day");
            put("limit", "2");
        }};

ApiResponse res = ohlcvService.getLatestData(symbolID, params);
System.out.println(res.getResponse());

{
	"meta": {
		"totalCount": 23
	},
	"payload": [{
		"exchange": "5b1ea9d21090c200146f7366",
		"eventType": "SPOT",
		"assetBase": "5b1ea92e584bf5002013066a",
		"assetQuote": "5b755dacd5dd99000b3d92b2",
		"timePeriodStart": 1545091200,
		"timePeriodEnd": 1545177600,
		"timeOpen": 1545095064,
		"timeClose": 1545105503,
		"priceOpen": 0.00536766,
		"priceClose": 0.00533631,
		"priceLow": 0.00533631,
		"priceHigh": 0.00540231,
		"volumeTraded": 1713.40194932,
		"tradesCount": 10,
		"_id": "5c1a11c0481c5700015eaeff",
		"_created": 1545212352,
		"_lastModified": 1545218854
	}, {
		"exchange": "5b1ea9d21090c200146f7366",
		"eventType": "SPOT",
		"assetBase": "5b1ea92e584bf5002013066a",
		"assetQuote": "5b755dacd5dd99000b3d92b2",
		"timePeriodStart": 1545004800,
		"timePeriodEnd": 1545091200,
		"timeOpen": 1545025630,
		"timeClose": 1545073697,
		"priceOpen": 0.00547147,
		"priceClose": 0.00539047,
		"priceLow": 0.00535,
		"priceHigh": 0.00548921,
		"volumeTraded": 64723.87729499,
		"tradesCount": 260,
		"_id": "5c195cc2481c57000121f344",
		"_created": 1545166018,
		"_lastModified": 1545198267
	}]
}

Get historical data - Quotes

final QuotesService quotesService = exchanges.getQuotesService();
final Map<String, String> params = new HashMap<String, String>(){{
       put("limit", "5");
    }};

ApiResponse res = quotesService.getHistoricalData("5bfc325c9c40a100014db8ff", params);
System.out.println(res.getResponse());

{
	"meta": {
		"totalCount": 2124,
		"index": 0,
		"limit": 5,
		"results": 5
	},
	"payload": [{
		"exchangeSymbol": "etheur",
		"exchangeId": "5b1ea9d21090c200146f7364",
		"price": 147.53,
		"orderId": "N\/A",
		"tradeType": "SPOT",
		"baseAsset": "5b755dacd5dd99000b3d92b2",
		"quoteAsset": "5b1ea92e584bf5002013061a",
		"direction": "ASKS",
		"amount": 0.64306,
		"eventTime": 1555488613000
	}, {
		"exchangeSymbol": "etheur",
		"exchangeId": "5b1ea9d21090c200146f7364",
		"price": 147.04,
		"orderId": "N\/A",
		"tradeType": "SPOT",
		"baseAsset": "5b755dacd5dd99000b3d92b2",
		"quoteAsset": "5b1ea92e584bf5002013061a",
		"direction": "BIDS",
		"amount": 11.985,
		"eventTime": 1555488406000
	}, {
		"exchangeSymbol": "etheur",
		"exchangeId": "5b1ea9d21090c200146f7364",
		"price": 147.63,
		"orderId": "N\/A",
		"tradeType": "SPOT",
		"baseAsset": "5b755dacd5dd99000b3d92b2",
		"quoteAsset": "5b1ea92e584bf5002013061a",
		"direction": "ASKS",
		"amount": 327.0426884,
		"eventTime": 1555488406000
	}, {
		"exchangeSymbol": "etheur",
		"exchangeId": "5b1ea9d21090c200146f7364",
		"price": 147.62,
		"orderId": "N\/A",
		"tradeType": "SPOT",
		"baseAsset": "5b755dacd5dd99000b3d92b2",
		"quoteAsset": "5b1ea92e584bf5002013061a",
		"direction": "ASKS",
		"amount": 0.64306,
		"eventTime": 1555488406000
	}, {
		"exchangeSymbol": "etheur",
		"exchangeId": "5b1ea9d21090c200146f7364",
		"price": 147.76,
		"orderId": "N\/A",
		"tradeType": "SPOT",
		"baseAsset": "5b755dacd5dd99000b3d92b2",
		"quoteAsset": "5b1ea92e584bf5002013061a",
		"direction": "ASKS",
		"amount": 23.76,
		"eventTime": 1555488406000
	}]
}

Get latest data by - Trades

final TradesService tradesService = exchanges.getTradesService();
final String symbolID = "5bfc32a29c40a100014dc5f6";
final Map<String, String> params = new HashMap<String, String>() {{
            put("limit", "1");
        }};

ApiResponse res = tradesService.getLatestDataBySymbol(symbolID, params);
System.out.println(res.getResponse());

{
	"meta": {
		"totalCount": 170,
		"index": 0,
		"limit": 1,
		"results": 1
	},
	"payload": [{
		"exchangeId": "5b4e131b6ab304000a106945",
		"exchangeSequenceId": "dc5d8abc-cb3b-43a2-9350-c983ef368c09",
		"eventTime": 1555488112732,
		"baseAsset": "5b1ea92e584bf50020130845",
		"quoteAsset": "5b755dacd5dd99000b3d92b2",
		"price": 2.679e-5,
		"amount": 14142.4,
		"direction": "SELL",
		"tradeType": "SPOT"
	}]
}

Exchanges - Services/Methods

ExchangeRatesService	MetadataService	OHLCVService	QuotesService	TradesService	OrderBookService
getSpecificRate	getExchangesList	getPeriodsList	getLatestData	getLatestData	getSnapshotBySymbolId
getCurrentRate	getAssetsList	getLatestData	getHistoricalData	getHistoricalData
	getSymbolsList	getHistoricalData		getLatestDataBySymbol

Ethereum, Ethereum Classic - Services/Methods

AddressService	BlockchainService	BlockService	ContractService	PaymentService	TokenService	TransactionService	WebhookService
getAddressInfo	getBlockchainInfo	getBlock x2	estimateGasSC	createPFPvt	getTokenBalance	getTx x3	createNewBlockWh
generateNewAddress		getLatestBlock	deploySC	createPFPwd	transferPvt	getPendingTxs	createAddressWh
generateAccount				deletePF	transferPwd	getQueuedTxs	createConfirmedTxWh
getTxsByAddress				listPayments	getTokensByAddress (Ethereum)	getTxByIdxAndLimit	createTokenWh
getNonce				listPastPayments	getTokenTxsByAddress (Ethereum)	createTxKeyStore	createTXPoolWh
					getTotalSupplyAndDecimals	createTxKeyStoreAll	deleteWebhook
					getAllTokens (Ethereum)	createTxPvt	listWebhooks
						createTxPvtAll
						getRawTxBody
						estimateGasLimit
						broadcastSignedTx
						getGasFees
						getBasicTx

Bitcoin, Litecoin, Bitcoin_Cash, Dogecoin - Services/Methods

AddressService	BlockchainService	BlockService	PaymentService	TransactionService	WalletService	WebhookService
getAddressInfo	getBlockchainInfo	getBlock x2	createPFPwd	getTxByHash	createWallet	createNewBlockWh
getMultisigAddressInfo		getLatestBlock	deletePF	getTxByBlock x2	createHDWallet	createAddressWh
generateNewAddress			listPayments	getUnconfirmedTxs	listWallets	createConfirmedTxWh
getTxsByAddress			listPastPayments	decodeTx	listHDWallets	deleteWebhook
				createTx	getWallet	listWebhooks
				signTx	getHDWallet	deleteAllWebhooks
				sendTx	addAddressToWallet
				newTx	generateAddressWallet
				getFees	generateAddressHDWallet
				newTxWithHDWallet	removeAddress
				refundTx	deleteWallet
				transactionSize	deleteHDWallet
				transactionSizeWithFee	createExtendedKey
				getBasicTxByHash	getXpubReceiveAddresses
				getRawTxByHash	getXpubChangeAddresses

Bitcoin / Omni Layer

AddressService	NodeInfoService	TransactionService
getAddress	getNodeInfo	createTransaction x2
getAddressTransactions		signTransaction
		sendTransaction
		createSignAndSendTransaction x2
		createHDWalletTransaction x2
		getTransactionById
		getTransactionsByBlockHeight x2
		getTransactionsByPropertyId x2
		getUnconfirmedTransactions x2

Zilliqa

AddressService	BlockchainService	TransactionService	BlockService
getAddressInfo	getBlockchainInfo	getTx x3	getBlock x2
getTxsByAddress		getTxByIdxAndLimit	getLatestBlock
generateNewAddress

Query Params

Params
index
limit
period
timeperiodstart
timeperiodend
timestamp
timestart
timeend

Check out the documentation of CryptoAPIs for more information.

License

MIT

Name		Name	Last commit message	Last commit date
Latest commit History 65 Commits
src/main		src/main
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md
pom.xml		pom.xml
release.properties		release.properties

License

Crypto-APIs/Java-Library

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⚠️ SDK Deprecation Notice

💡 Recommended Approach

Java SDK for CryptoAPIs.io

You can get API key here.

Getting started

Maven

Gradle

How to use

Ethereum examples

Generate new address

Generate new account

Get address balance

Get block info by number

Get an existing transaction by a given hash:

Create payment forwarding using an account

Create, sign and send a transaction to the blockchain

Bitcoin, Litecoin and Bitcoin Cash examples

Generate new address

Get block info by a given hash

Get transactions by index and limit

Create, sign and send a transaction to the blockchain

Create wallet

Create HD wallet

Add address to wallet

Create Transaction Using HDWallet

Create Confirmed Transaction Webhook

Get blockchain info

Exchanges examples

Get specific rate - ExchangeRates

List all exchanges - Metadata

Get latest data - OHLCV

Get historical data - Quotes

Get latest data by - Trades

Exchanges - Services/Methods

Ethereum, Ethereum Classic - Services/Methods

Bitcoin, Litecoin, Bitcoin_Cash, Dogecoin - Services/Methods

Bitcoin / Omni Layer

Zilliqa

Query Params

License

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