Ethereum: What is the blockchain.info testnet API URL?

Understanding the Ethereum Testnet API: A Guide to blockchain.info

As a developer working on the Ethereum blockchain, you probably know that the testnet is a critical springboard for new projects and experiments. However, accessing the full range of APIs offered by the popular open source wallet blockchain.info can be challenging because it is implemented on a private network.

The key is to understand how the testnet differs from the mainnet, especially in terms of API access. In this article, we will take a look at what is available through the testnet and how it compares to the mainnet.

Why Use the blockchain.info Testnet?

Before we dive into the APIs, let’s briefly discuss why you might want to use the testnet:

• Testing New Ideas: The testnet provides developers with a safe space to experiment with new features without significant financial loss.

• Proof-of-Concept (PoC) Development: The testnet can be used as a starting point for developing proofs of concept, which are often more robust and scalable than the mainnet.

Using Blockchain.info Testnet APIs

Now that we know why you might want to use the testnet, let’s explore the available APIs:

Receiving new addresses

The most common API call on the testnet is to receive new addresses. However, unlike the mainnet, there is no specific URL for this purpose.

Here is an example of receiving new addresses using the curl command:

curl -X POST \

Replace $xpub' with your public Ethereum address.

To receive event logs, you need to use a different endpoint. The testnet "receive" API is not available for this purpose; however, you can use theblockchain.info` mainnet API instead:

curl -X POST \

However, keep in mind that you cannot see the event logs because they are private. You can view them publicly using the Blockchain.info mainnet API with a specific address and timestamp:

curl -X GET \

This will return the event logs for the specified address with the given timestamp.

Receiving Transaction Fees

The Blockchain.info mainnet API also provides a way to receive transaction fees:

curl -X POST \

Replace “$fee” with the desired fee amount.

Receiving New Keys

If you need to generate new keys, you can use the Blockchain.info mainnet API:

curl -X POST \

This will return a list of available private keys for your Ethereum address.

In summary, while the “blockchain.info” API on the testnet provides useful endpoints, it is not as comprehensive as the mainnet. To access all of the APIs, you will need to use the mainnet. However, you can leverage these features in your projects by using a little creativity and understanding how the testnet differs from the mainnet.

Conclusion

In this article, we will explore what is available on the “blockchain.info” testnet and how it compares to its mainnet counterpart. By using the right APIs and understanding their differences, developers can open up new opportunities to test and experiment with their Ethereum projects.