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.dev158

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.dev158
File Size Uploaded
mplang_nightly-0.1.dev158.tar.gz 314.9 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for mplang-nightly 0.1.dev158
File Interpreter ABI Platform
mplang_nightly-0.1.dev158-py3-none-any.whl Python 3 none any Details

Total release size: 520.9 kB

Release files / mplang_nightly-0.1.dev158.tar.gz

Download URL mplang_nightly-0.1.dev158.tar.gz
Size 314.9 kB
Tags Source
SHA-256 checksum
How to use checksums
1e870c3e73dccc9866842c0af103f8797c16e19c20b5d6c641d28f7a45ea0d3f
BLAKE2b-256 checksum
How to use checksums
cd2561bdfc6e5a7039bf381413c93888f6e63252a23c730380213df3ff6acdf0
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via python-httpx/0.28.1

Release files / mplang_nightly-0.1.dev158-py3-none-any.whl

Download URL mplang_nightly-0.1.dev158-py3-none-any.whl
Size 206.1 kB
Tags Python 3
SHA-256 checksum
How to use checksums
1a1a81594b86599e37f45f6f8c1c9eb4e8833e5d422134ff3e67a9d3b3df1923
BLAKE2b-256 checksum
How to use checksums
395a72852ce63ae1c0e8ec9625ebdcce4591787953bec325f20542b8995e0838
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.dev158 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