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Development

How to apply for test tokens?

Up to 1000 GAS and 1000 NEO per day can be requested via the NGD faucet . If you need more than that, go to https://neo.org/testcoin/apply and fill out the application form. If the application is accepted, you will be notified in three to five workdays.

How to build a private chain?

To build a private chain, you have the following options：

  • Build a private chain with one node. See here .

  • Build a private chain on your local host. See here .

You can also refer to the community articles to learn more options.

What languages can I use to develop smart contracts?

Neo supports a variety of mainstream programming languages and can be developed using C#, Python, Go, JS, and Jave. Currently in the NEO ecosystem, the infrastructure for C# and Python is extremely well-developed and various compilers are provided for developers.

How can I obtain the NEP-5 asset hash?

You can use a blockchain browser, e.g. https://neo3.neotube.io , to view the NEP-5 asset hash:

  1. In the browser, click Tokens in the top navigation bar.

  2. Click the desired asset to view its hash in the details page that appears.

Why is it prompted that there is no object's private key in the wallet when withdrawing assets from a multi-party signature contract?

After the private chain is set up, you need to make the same configurations in all (n/2+1) wallets (n is the node number), that is, add the multi-party signed addresses and then rebuild the wallet index.

What SDKs are provided for developers?

Neo developer communities have developed and maintained various NEO SDKs for many mainstream languages including C#, JavaScript, Java, and etc. You can check them here: