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The Python Stellar SDK library provides APIs to build transactions and connect to Horizon and Soroban-RPC server.

Project description

GitHub Workflow Status Read the Docs PyPI - Downloads Code Climate maintainability Codecov PyPI Python - Version PyPI - Implementation Stellar Protocol

py-stellar-base is a Python library for communicating with a Stellar Horizon server and Soroban-RPC server. It is used for building Stellar apps on Python. It supports Python 3.8+ as well as PyPy 3.8+.

It provides:

  • a networking layer API for Horizon endpoints.

  • a networking layer API for Soroban-RPC server methods.

  • facilities for building and signing transactions, for communicating with a Stellar Horizon and Soroban-RPC instance, and for submitting transactions or querying network history.


py-stellar-base’s documentation can be found at


pip install --upgrade stellar-sdk

If you need to use asynchronous, please use the following command to install the required dependencies.

pip install --upgrade stellar-sdk[aiohttp]

We follow Semantic Versioning 2.0.0, and I strongly recommend that you specify its major version number in the dependency file to avoid the unknown effects of breaking changes.

A Simple Example

You can find more examples here.

# Alice pay 10.25 XLM to Bob
from stellar_sdk import Asset, Server, Keypair, TransactionBuilder, Network


server = Server("")
alice_account = server.load_account(alice_keypair.public_key)
base_fee = 100
transaction = (
    .add_text_memo("Hello, Stellar!")
    .append_payment_op(bob_address, Asset.native(), "10.25")
response = server.submit_transaction(transaction)


stellar-model allows you to parse the JSON returned by Stellar Horizon into the Python models, click here for more information.

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