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Ethereum: what is blockchain.info testnet api url?

Published by Terlumun Aondover on February 11th, 2025.

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

As a developer working with the Ethereum blockchain, you probably know that the testnet is a key starting point for new projects and experiments. However, accessing the full range of APIs from blockchain.info, a popular open-source wallet, can be challenging due to its implementation on a private network.

The key is understanding how the testnet differs from the main network, particularly in terms of API usage. In this article, we’ll look at what’s available through the testnet and how it compares to the main network.

Why use blockchain.info testnet?

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

Test new ideas: The testnet provides a safe space for developers to experiment with new features without risking significant financial loss.

Proof-of-Concept (PoC) Development

: The testnet can be used as a starting point for developing proof-of-concepts that are often more robust and scalable than the main network.

Accessing blockchain.info Testnet APIs

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

Receiving New Addresses

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

Here is an example of how to receive new addresses using curl:

curl -X POST \

Replace $xpub with your public Ethereum address.

Receiving transaction logs

To receive transaction logs, you need to use a different endpoint. The testnet’s receive API is not available for this purpose; however, you can use the blockchain.info mainnet API instead:

curl -X POST \

Keep in mind, however, that you cannot see the transaction logs as they are private. To view them publicly, use the blockchain.info main network API with a given address and timestamp:

curl -X GET \

This will return the transaction logs for the given address at the given timestamp.

Receiving transaction fees

The blockchain.info main network 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 mainnet blockchain.info API:

curl -X POST \

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

To summarize, while the testnet blockchain.info API offers some useful endpoints, it is not as comprehensive as the mainnet. To access the full range of APIs, you will need to use the mainnet. However, with some creativity and an understanding of how the testnet differs from the mainnet, you can still leverage these features for your projects.

Conclusion

Ethereum: what is blockchain.info testnet api url?

In this article, we explored 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 unlock new opportunities to test and experiment with their Ethereum projects.