Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.
⚡ Executive Summary & Quick Facts
Authoritative Sourcemesa is mesa is an open-source project written in Python: Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), mesa/mesa has accumulated 3,951 GitHub stars and 1,367 forks. It is written in Python, licensed under Apache-2.0, and ranks #3,515 globally. It is actively maintained with the latest commit recorded on Nov 10, 2026.”
| Repository | mesa/mesa ↗ |
|---|---|
| Primary Category | agent based modeling |
| Language & Stack | Python |
| Software License | Apache-2.0 |
| Community Traction | ★ 4K stars · ⑂ 1.4K forks · #3,515 globally |
| Maintenance | ● Active (Last commit: Nov 10, 2026) · 133 open issues |
| Target Audience | Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 100/100 · Grade A+Yes, mesa is actively maintained. Continuous telemetry recorded the last code commit on Nov 10, 2026 (3 days ago). Supported by 3,951 stars and 1,367 community forks, this repository holds a calculated health index of 100/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+99
STARS · LAST 30 DAYS
3
PER DAY
#545
MOST-STARRED Python
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +21 | +99 | +270 |
| Per day | 3 | 3 | 3 |
| Forks gained | +7 | +27 | +68 |
mesa gained 99 stars in the last 30 days, about 3 a day, and now has 4K. It is about 12 years old and has averaged roughly 329 stars a year. It ranks #545 among Python repositories and #3,515 across all languages on GitHubRepo.
Trending Record
3
DAYS ON TRENDING
#9760
BEST RANK
Nov 10, 2026
FIRST APPEARANCE
Active
STATUS TODAY
mesa has maintained a continuous presence across global trending indexes, peaking at #9760. Below is the 30-day activity profile:
💡 Overview
mesa is an open-source project written in Python: Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.
Engineered for speed, consistency, and developer ease, it solves common hurdles in agent-based-modeling, agent-based-simulation, complex-systems. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Python for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ pip install mesa⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Python >= 3.9, pip, virtualenv
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
mesa coordinates its core functionality through a modular Python pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with mesa.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install mesa using your package manager: `pip install mesa`
Initialize your project workspace or configuration file for mesa.
Import mesa into your codebase or invoke it directly from your terminal.
Execute your test suite or run `mesa --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
mesa/mesa is currently ranked #3,515 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,509 | roboflow/trackers | Python | ★ 4K | Compare ↗ |
| #3,509 | DingTalk-Real-AI/dingtalk-workspace-cli | Go | ★ 4K | Compare ↗ |
| #3,512 | MeteorDevelopment/meteor-client | Java | ★ 4K | Compare ↗ |
| #3,513 | Nekogram/Nekogram | Java | ★ 4K | Compare ↗ |
| #3,513 | marin-community/marin | Python | ★ 4K | Compare ↗ |
| #3,515 | mesa/mesa This Project | Python | ★ 4K | |
| #3,515 | release-drafter/release-drafter | TypeScript | ★ 4K | Compare ↗ |
| #3,517 | ddev/ddev | Go | ★ 4K | Compare ↗ |
| #3,517 | nextcloud/desktop | C++ | ★ 4K | Compare ↗ |
| #3,519 | octokit/octokit.rb | Ruby | ★ 3.9K | Compare ↗ |
| #3,520 | NVIDIA/skills | Python | ★ 3.9K | Compare ↗ |
Frequently Asked Questions
What does mesa do? +
Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.
Is mesa actively maintained in 2026? +
Yes, mesa is actively maintained. The latest code push was recorded on Nov 10, 2026 (3 days ago). It holds a calculated Maintenance Health Score of 100/100 (A+ rating) with 3,951 stars and 133 open issues.
What language is mesa written in? +
The primary language is Python. Topics include: agent-based-modeling, agent-based-simulation, complex-systems, complexity-analysis, gis.
How many stars does mesa have? +
mesa has 3,951 stars and 1,367 forks on GitHub.
How does mesa rank among GitHub repositories? +
With 3,951 stars, mesa/mesa is ranked #3,515 globally across all repositories tracked on GitHubRepo and #545 among Python projects.
What license is mesa distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
