<p>If you are developing in java using the <code>bitcoinj</code> library, they have a mechanism in place to do it without downloading the full block chain. They just download the header <code>lightweight simplified payment verification (SPV) mode</code>. Maybe you can try that.This is the <a href="https://bitcoinj.github.io/" rel="nofollow">link</a></p>

CC BY-SA 3.0
2016-06-17T04:11:17.340Z
Thanks alot jgm. im thinking of developing the software in C#. do C# has a library such like that?
Anjelo
CC BY-SA 3.0
2016-06-16T11:13:01.077Z
2016-06-16T11:13:01.077Z
jgm
<p>To access the bitcoind, i will be needing the whole blockchain right?</p>

<p><a href="https://bitcoin.stackexchange.com/questions/19105/do-i-need-the-bitcoin-blockchain-for-having-a-simple-wallet-using-the-bitcoind">Do I need the bitcoin blockchain for having a simple wallet using the bitcoind (daemon)?</a></p>

CC BY-SA 3.0
2016-06-16T10:52:52.340Z
2016-06-16T10:52:52.340Z
2017-04-13T12:47:33.660Z
Anjelo
<p>You can use regtest instead. You may enable regtest with</p>

<pre><code>bitcoind --regtest
</code></pre>

<p>With console output: </p>

<pre><code>bitcoind --regtest --printtoconsole 
</code></pre>

CC BY-SA 3.0
2016-06-16T10:19:42.823Z
2016-06-16T10:19:42.823Z
rny
<p>Can i access the testnet without downloading the blockchain? im developing a software to do a testnet (later it will be in mainnet) transaction with a custom message embedded into OP_RETURN. if the users have to download the whole blockchain, the users im targeting for this software, will not be interested of using this. </p>

CC BY-SA 3.0
2016-06-24T20:29:42.403Z
It seems to me that you were just re-asking the same question again, if you disagree with this close-vote please explain the difference between your questions clearly.
Murch
<blockchain><testnet><op-return>
Accessing Testnet
Anjelo
# Accessing Testnet

(Asked by: username_0 on 2016-06-16)

Can i access the testnet without downloading the blockchain? im developing a software to do a testnet (later it will be in mainnet) transaction with a custom message embedded into OP\_RETURN. if the users have to download the whole blockchain, the users im targeting for this software, will not be interested of using this.

**Tags:** blockchain, testnet, op-return

> **Comments:**
> **username_1**: It seems to me that you were just re-asking the same question again, if you disagree with this close-vote please explain the difference between your questions clearly.  

---

## 3 answers

### Answer by username_2 on 2016-06-16. Score: 1 | Accepted answer

If you are developing in java using the `bitcoinj` library, they have a mechanism in place to do it without downloading the full block chain. They just download the header `lightweight simplified payment verification (SPV) mode`. Maybe you can try that.This is the [link](https://bitcoinj.github.io/)

> **Comments:**
> **username_0**: Thanks alot jgm. im thinking of developing the software in C#. do C# has a library such like that?  

---

### Answer by username_0 on 2016-06-16. Score: 0

To access the bitcoind, i will be needing the whole blockchain right?

[Do I need the bitcoin blockchain for having a simple wallet using the bitcoind (daemon)?](https://bitcoin.stackexchange.com/questions/19105/do-i-need-the-bitcoin-blockchain-for-having-a-simple-wallet-using-the-bitcoind)


---

### Answer by username_3 on 2016-06-16. Score: 0

You can use regtest instead. You may enable regtest with

```
bitcoind --regtest

```

With console output:

```
bitcoind --regtest --printtoconsole 

```


---

