Bitcoin: REST API Documentation

Introduction

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The Bitcoin Core (BTC) project provides a RESTful API for interacting with the blockchain. This article provides a detailed overview of the REST API, including its usage and some examples of its functions.

Getting Started

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To start using the BTC REST API, you need to obtain an API key from the official Bitcoin Core website. You can do this by registering on the [official website] (

Once you have your API key, you can use it to create a client library in your desired programming language (e.g. Python, JavaScript, Ruby). The client library provides an interface for accessing the BTC REST API.

REST API Endpoints

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The BTC REST API provides several endpoints for interacting with the blockchain:

• Blocks: Retrieve the last block by ID, or retrieve all blocks.

• Transactions: Transaction details by ID, or all transactions.

• Wallets: Get wallet information, including balance and address.

• Nodes: Get node information, including network status and available nodes.

Getting the last block

You can use the following endpoint to get the last block:

Get /blockchain/v1/block/last_block

Replace /blockchain/v1' with the desired version (e.g.v1′ for Bitcoin Core 0.7.x).

Transaction Details

To get transaction details by ID or to get all transactions, use the following endpoints:

GET /transaction/v1/transaction/{txid}

Replace {txid} with the desired transaction ID.

For example, to get transaction details by ID:

GET /transaction/v1/transaction/1234567890abcdef

Wallet Information

To get wallet information, including balance and address, use the following endpoint:

GET /wallets/v1/wallet/{walletid}

Replace {walletyid} with the desired wallet ID.

For example, to get wallet information by ID:

GET /wallets/v1/wallet/1234567890abcdef

Node Information

To get information about a node, including network status and available nodes, use the following endpoint:

Get /nodes/v1/nodes

This endpoint returns a list of all hosts available on the local network.

Example Client Code (Python)

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Here is an example client code for using the BTC REST API with Python:

import requests





Configure the API key and version
api_key = "YOUR_API_KEY_HERE"
version = "0.7.x"

Configure the endpoint URL
endpoint_url = f"

Create a client library object
client = requests.Client()
try:

Get the last block
response = client.get(endpoint_url)

Check if the response was successful
if response.status_code = = 200:

Parse the JSON response
block_data = response.json()
print("Latest block:", block_data)
else:
print(f"Error: {response.status_code}")
except requests.exceptions.HTTPERror as http_err:
print(f"An HTTP error occurred: {http_err}")

Conclusion

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The Bitcoin Core REST API provides a powerful means of interacting with the blockchain. By understanding how to use the API, you can perform a wide range of tasks, from retrieving information about blocks to managing wallet balances. This article provides a detailed overview of the REST API and provides examples of its use in Python.

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