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Open source

Every tool I tagged Open source, newest first. 94 so far.

Nimbus

Cloudflare's Astro docs tool that publishes HTML for people and Markdown for agents

Open Bot Avatar

A tiny JSON spec and renderer for animated, interactive agent avatars

anon.li

Let your agent manage private email aliases and encrypted file drops over OAuth MCP

Doop

Open source multiplayer design canvas where humans and AI agents design together over MCP

Spec Kit

GitHub's open source toolkit for spec driven development with coding agents

T3 Code

Open source control panel for the coding agents on your machine, with desktop and mobile apps

Worktrunk

Git worktree CLI built for running several coding agents in parallel

DBHub

Token efficient database MCP server for Postgres, MySQL, SQL Server, Oracle and SQLite

Kilobat

Mac network monitor that logs and blocks what your coding agents connect to, with an MCP server

OpenMontage

Open source agentic video production system that runs inside your coding agent

Paperclip

Open source control plane for running a team of AI agents like a company

VectCutAPI

Open source video editing API and MCP server that builds CapCut and Jianying drafts

DeepTutor

Open source, agent native learning workspace for personalized tutoring, quizzes, research and practice

Firecrawl

Open source web data API for agents: search, scrape, crawl and interact, with an official MCP server

agent-desktop

Computer use for any coding agent on macOS, Windows and Linux

Deep Agents

LangChain's open source agent harness with planning, sub-agents, a filesystem and skills built in

HOL Guard

Open-source local firewall that checks what your coding agent is about to do and blocks the dangerous stuff

Lightpanda

Headless browser built from scratch for AI agents and automation, with a native MCP server

MemPalace

Local-first memory for AI agents that keeps conversations verbatim and searches them, with an MCP server

QAmcp

Free open source tester that checks any MCP server the way Claude or Cursor would use it

Hindsight

Open source long-term memory for agents that learns from past sessions, with a built-in MCP server

MausBot

Open source desktop app for running a team of AI bots on the Claude, Codex or Grok CLI you already have

OpenViking

Open source context database that keeps an agent's knowledge, memory and skills in one filesystem

Radar

Open source Kubernetes UI with a built-in MCP server so your agent sees the whole cluster, not raw YAML

Concat

Free open source video editor your agent can drive over MCP

Postiz

Social media scheduler your agent can post through, 30+ channels

Shannon

Autonomous AI pentester that only reports bugs it can exploit

Skill Recorder

Record a task once and turn it into a SKILL.md your agent can repeat

ThinkRail

JetBrains' open source agentic IDE built around the pi coding agent

Corgi

Terminal multiplexer built for running many coding agents

MCP Atlassian

Jira and Confluence MCP server for Cloud and Data Center

Cindy

Open source desktop agent that runs Claude Code and Codex harnesses on your own machine

Meridian Browser

Open source Arc alternative with an MCP server so Claude Code can drive your tabs

OpenSEO

Open source Semrush and Ahrefs alternative with a native MCP server and agent skills

Obsidian-TC

An Obsidian MCP server with permissions, audit logs and memory inside your vault

dbt Charts

Dashboards as YAML around SQL: easy for agents to write, easy for humans to review in a diff

Omnara

Open-source, self-hostable platform for running agents through one API, on any model and any machine

Shuttle

Chromium fork for AI agents: built-in MCP server, and each agent gets its own logins and tab group

iOS Simulator MCP

Lets your coding agent tap, type, swipe and screenshot its way through the iOS Simulator

OpenPencil

Open source vector design tool your coding agent can draw in through MCP

Agentic Inbox

Self-hosted email client with an AI agent, running on your own Cloudflare account

GenOffice

Open-source office suite your coding agent can drive through a CLI, skill or MCP

JobSpy MCP

Let your agent search LinkedIn, Indeed, Glassdoor and more job boards at once

Scrawl

Show your coding agent a bug instead of describing it: record, draw, talk, send

Strix

Open-source AI pentesting agents that prove each bug with a working exploit

Decks

Make slide decks by commenting under each slide while Claude Code or Codex does the edits

Headroom

Shrinks tool outputs, logs and files before your coding agent sends them to the model

Hyperconsciousness

Encrypted knowledge store your agents can read with scoped, expiring grants

Locum

Let Grok Bot hand coding work to the Claude Code and Codex CLIs on your own machine

mcpc

Command-line MCP client that gives any shell-enabled agent the full protocol through one Bash tool

OpenFilm

Turns any coding agent into a video maker, with a real editor to change what it makes

Perplexity SPACE

Self-hosted sandboxes that run agent code in isolated Firecracker microVMs

agentplay

Replay your coding agent sessions as a map and a timeline

Co-op Anything

Point your coding agent at a single-player game and play it in co-op with friends

Graphicle

Code graph and project memory for coding agents in one local Rust program

Graphify

Turns a codebase and its docs into a knowledge graph your coding agent can query

Otari

Self-hosted LLM gateway with virtual keys, budgets and usage tracking

Pi

Minimal, extensible coding agent harness you shape to your own workflow

Reason Network

Let Grok Bot, Claude Code, Codex and your teammates' agents message each other

Scrapling

Python scraping framework with a stealth browser and an MCP server for agents

SolidCraft

Open-source parametric 3D CAD that AI agents can drive through MCP

Sphinx

A Git hook that quizzes you on your agent's code before it ships

whatsapp-mcp

Read-only MCP server that lets your agent search your own WhatsApp, on Cloudflare

agent-device

Let your coding agent test its changes in the real mobile app

AI Job Search

Claude Code framework that runs your job search on your machine

ai-memory

One shared memory for every coding agent you switch between

ARTEMIS

Turn plain-English instructions into Android phone automation

Beads

Issue tracker and memory built for coding agents

earshot

Lets coding agents hear, judge and make sound

Engram

Local persistent memory for any coding agent, in one binary

gitai

Open-source Git server built for many coding agents landing changes at once

Monty

Run Python your agent writes without spinning up a container

OpenSpec

Agree on a spec with your coding agent before it writes code

Orca

Desktop workspace for running several coding agents side by side

Scout by Outcrawl

Open-source browser agent that finishes a web task you describe in plain words

VoiceStudio

Fully local ElevenLabs alternative with an MCP server for agents

XERJ

Local search engine so coding agents stop reading files one by one

Agent-Native

TS framework: one action powers UI, agent, HTTP, CLI, MCP

CLI-Anything

Turn any software into a CLI your agent can drive

Hermes Agent

Open-source, self-hosted agent with memory and skills

OpenUI

Open standard for generative UI

Orkas

Open-source desktop app where a commander agent runs a team of AI specialists

REA

Reverse engineering toolkit for your coding agent

Tale

Open-source project workspace for teams and AI agents

withHuman

Human approval layer for consequential agent actions

Mem0

Long-term memory layer for AI agents

Langfuse

Open-source tracing and evals for agents

OpenCode

Open-source coding agent, any model

Mastra

TypeScript framework for AI agents