pip install -U farcaster

or install with Poetry:

poetry add farcaster

This SDK leverages the Warpcast API. Warpcast is one of many Farcaster clients. As more APIs are created and hosted by different clients, these will be added to the SDK.

To use the Warpcast API you need to have a Farcaster account. We will use the mnemonic or private key of the Farcaster custody account (not your main wallet) to connect to the API.

First, save your Farcaster mnemonic or private key to a .env file. Now you can initialize the client, and automatically connect to the Farcaster API!

import os
from farcaster import Warpcast
from dotenv import load_dotenv # can be installed with `pip install python-dotenv`

load_dotenv()

client = Warpcast(mnemonic=os.environ.get("<MNEMONIC_ENV_VAR>"))

print(client.get_healthcheck())

Get a cast

response = client.get_cast("0x321712dc8eccc5d2be38e38c1ef0c8916c49949a80ffe20ec5752bb23ea4d86f")
print(response.cast.author.username) # "dwr"

Publish a cast

response = client.post_cast(text="Hello world!")
print(response.cast.hash) # "0x...."

Get a user by username

user = client.get_user_by_username("mason")
print(user.username) # "mason"

Get a user's followers using a fid (farcaster ID)

response = client.get_followers(fid=50)
print(response.users) # [user1, user2, user3]

Stream recent casts

for cast in client.stream_casts():
    if cast:
        print(cast.text) # "Hello world!"

Get users who recently joined Farcaster

response = client.get_recent_users()
print(response.users) # [user1, user2, user3]

Get your own user object

user = client.get_me()
print(user.username) # "you"

Recast a cast

response = client.recast("0x....")
print(response.cast.hash) # "0x...."

and many, many more things. The full specification can be found on the Reference page.

Please note that support for Python 3.7 is no longer actively maintained. Python 3.8, 3.9, or 3.10 are recommended.

This project is licensed under the terms of the MIT license. See LICENSE for more details.

This code is being provided as is. No guarantee, representation or warranty is being made, express or implied, as to the safety or correctness of the code. It has not been audited and as such there can be no assurance it will work as intended, and users may experience delays, failures, errors, omissions or loss of transmitted information. Nothing in this repo should be construed as investment advice or legal advice for any particular facts or circumstances and is not meant to replace competent counsel. It is strongly advised for you to contact a reputable attorney in your jurisdiction for any questions or concerns with respect thereto. a16z is not liable for any use of the foregoing, and users should proceed with caution and use at their own risk. See our disclosures page for more info.