Skip to main content
Pre-release

This release is a pre-release and may not be stable for production use.

MPLang: A Programming Language for Multi-Party Computation

CircleCI Lint Mypy License

MPLang is a Python-native library for building and executing multi-party and multi-device programs. It simplifies secure computation by allowing developers to write a single program that orchestrates multiple parties in a synchronous, SPMD (Single Program, Multiple Data) fashion.

Features

  • Single-Controller SPMD: Write one program that runs across multiple parties in lockstep.
  • Explicit Device Placement: Clearly annotate and control where data lives and computation happens (e.g., on party P0, P1, or a secure SPU).
  • Function-Level Compilation: Use the @mplang.function decorator to compile Python functions into an auditable, optimizable graph representation.
  • Pluggable Architecture: Easily extend MPLang with new frontends (like JAX) and backends (like StableHLO, SPU).

Getting Started

Installation

You'll need a modern Python environment (3.11+). We recommend using uv for fast installation.

# Install uv (if not already installed)
curl -LsSf https://astral.sh/uv/install.sh | sh

# Install MPLang from PyPI
uv pip install mplang

Quick Example

Here's a taste of what MPLang looks like. This example shows a "millionaire's problem" where two parties compare their wealth without revealing it.

import mplang as mp
from numpy.random import randint

# Use a decorator to compile this function for multi-party execution
@mp.function
def millionaire():
    # Alice's value, placed on device P0
    x = mp.device("P0")(randint)(0, 1000000)
    # Bob's value, placed on device P1
    y = mp.device("P1")(randint)(0, 1000000)
    # The comparison happens on a secure device (SPU)
    z = mp.device("SP0")(lambda a, b: a < b)(x, y)
    return z

# Set up a local simulator with 2 parties
sim = mp.Simulator.simple(2)

# Evaluate the compiled function
result = mp.evaluate(sim, millionaire)

# Securely fetch the result (reveals SPU value)
print("Is Alice poorer than Bob?", mp.fetch(sim, result))

Learn More

  • Tutorials: Check out the tutorials/ directory for in-depth, runnable examples covering conditions, loops, and more.
  • Contributing: We welcome contributions! See our Contributing Guide to get started with the development setup.

License

MPLang is licensed under the Apache 2.0 License.

Metadata

Release files for mplang-nightly 0.1.dev258

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for mplang-nightly 0.1.dev258
File Size Uploaded
mplang_nightly-0.1.dev258.tar.gz 688.1 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for mplang-nightly 0.1.dev258
File Interpreter ABI Platform
mplang_nightly-0.1.dev258-py3-none-any.whl Python 3 none any Details

Total release size: 1.2 MB

Release files / mplang_nightly-0.1.dev258.tar.gz

Download URL mplang_nightly-0.1.dev258.tar.gz
Size 688.1 kB
Tags Source
SHA-256 checksum
How to use checksums
4767aeafe539dee435f3551aa369ed117b21fc8c92002693a6686286e25b82a0
BLAKE2b-256 checksum
How to use checksums
def3317322476c747969cbee7e508353fd1010f0316be30761dbfff8b5666269
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via Hatch/1.16.2 cpython/3.11.14 HTTPX/0.28.1

Release files / mplang_nightly-0.1.dev258-py3-none-any.whl

Download URL mplang_nightly-0.1.dev258-py3-none-any.whl
Size 527.2 kB
Tags Python 3
SHA-256 checksum
How to use checksums
1df17acc101fbddc87b28b74cd17800a70ed54e821ca25b699e4c942901bd0bc
BLAKE2b-256 checksum
How to use checksums
27f99453f69fb45bc45415137cef4ca63d86323871b6db311bccb8d9e4ad1065
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via Hatch/1.16.2 cpython/3.11.14 HTTPX/0.28.1

Release history Release notifications | RSS feed

This release

0.1.dev258 This release

2 release files

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page