Basilisk

Python on the Internet Computer.

Write full-stack decentralized applications in Python, compiled to WebAssembly and running inside canisters on the Internet Computer. No servers, no cloud, no DNS hacks — the frontend, backend, and data all live on-chain.

GitHub PyPI

What is Basilisk?

Basilisk is a Canister Development Kit (CDK) and application framework for writing IC canisters in Python.

CPython 3.13 → WASM — deploy in seconds with a pre-built template, no Rust toolchain needed.
Near-complete standard library — os, json, re, math, datetime, hashlib, and more.
Stable storage — StableBTreeMap, StableVec, StableLog, StableCell, StableMinHeap — data survives upgrades with no serialization step.
Persistent filesystem — standard open() / os calls, automatically backed by stable memory.
IC system APIs — ic.caller(), ic.time(), inter-canister calls, timers, Candid types.

# Install and scaffold a new project
pip install ic-basilisk
basilisk new my-canister && cd my-canister
dfx start --background
dfx deploy

What is the Toolkit?

ic-basilisk-toolkit is a set of ready-made tools built on top of Basilisk — drop-in modules you can compose into your canister instead of writing them from scratch.

TasksSchedule and run background jobs

WalletICRC-1 token registry, transfers, balances

CryptovetKeys encryption, per-principal envelopes, groups

FXExchange rates via the on-chain XRC canister

HTTPHTTP outcalls with a simple client API

AuthRole-based access control and guards