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, Ibis) and backends (like StableHLO, SPU).

Getting Started

Installation

You'll need a modern Python environment (3.10+). 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
import mplang.device as mpd
from numpy.random import randint

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

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

# Evaluate the compiled function
result = mplang.eval(sim, millionaire)

# Securely fetch the result
print("Is Alice poorer than Bob?", mplang.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.dev155

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.dev155
File Size Uploaded
mplang_nightly-0.1.dev155.tar.gz 314.1 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for mplang-nightly 0.1.dev155
File Interpreter ABI Platform
mplang_nightly-0.1.dev155-py3-none-any.whl Python 3 none any Details

Total release size: 519.4 kB

Release files / mplang_nightly-0.1.dev155.tar.gz

Download URL mplang_nightly-0.1.dev155.tar.gz
Size 314.1 kB
Tags Source
SHA-256 checksum
How to use checksums
16f7da412ece272431e1e3491e670c9b14c6d25b9847abc20308f79d492298cf
BLAKE2b-256 checksum
How to use checksums
f083b9ccd243e5ca0877c1f263ab95c2ff77c90785fd2952d1ef4ec3a1609bed
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via python-httpx/0.28.1

Release files / mplang_nightly-0.1.dev155-py3-none-any.whl

Download URL mplang_nightly-0.1.dev155-py3-none-any.whl
Size 205.3 kB
Tags Python 3
SHA-256 checksum
How to use checksums
3acd213013a0a806b6d2a47fbf5d2b0e1ded83b7025f8c1c8c2728de8e844a7b
BLAKE2b-256 checksum
How to use checksums
8fb377e8602fe7f551c477fc07b8e54158ef05ff34ec8562c3344218466b5033
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via python-httpx/0.28.1

Release history Release notifications | RSS feed

This release

0.1.dev155 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