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open-source AI agent tools
A guide to choosing open-source AI agent tools, with a monthly log of what changed
Plain cards for open-source AI agent tools: what each one is, who it might suit, how it runs and what its own README says to check first.
Open Tool Watch is a guide for choosing open-source tools for building and running AI agents: coding agents, agent frameworks, memory servers, browsers and sandboxes made for agents, and the servers that connect agents to other software.
Each tool has a short card: what it is, who it might suit, how it runs, and what its own README says to check before relying on it. Guides compare the tools that do one job. A monthly log records what changed: new tools, which grew between two dated readings, which went quiet or were archived, and any change of licence. Every figure carries the day it was read. Nobody here has run these tools.
Choose by job
All guidesAgent frameworks
Agent frameworks and harnesses supply the loop around a language model.
Browser agents
Software that lets a model operate a screen covers more than web pages.
Coding agents
A coding agent reads a codebase, edits files and runs commands on a developer's behalf, usually from a plain-language request.
MCP servers
Model Context Protocol servers give a coding agent extra abilities through a shared interface, such as searching code, recalling earlier work, fetching documents or operating another program.
Memory
Many agents start each session without what earlier ones learned.
Multi-agent orchestration
Some work is too big for one agent session.
Retrieval
A model only knows what is in its prompt and its training.
Sandboxes
Agents run code, open browsers and hold credentials, so people look for somewhere to run them that limits what they touch.
Workflow builders
A workflow builder lets someone assemble the steps around a language model, such as document lookup, tool calls and hand-offs, without writing the whole thing as code.
What changed
Every month- 127 tools on the list on 10 November 2026.
The first month of the log. Growth between two readings starts with the next one.
Every tool
All tools, A to ZEach tool has its own page, with its licence, its last push and the day each figure was read. Search by name, owner or a word from a card.
Videos of tools in use
All videosIndependent practitioner
DeepSeek Harness controls a real iPhone over Wi-Fi | ESP32 Agent (esp32agent CLI)
Sells in this field
Introducing OpenUI Dashboards | Live dashboards for AI agents
Official source
Agent Teams That Ship: Run an Everything Factory with OpenRig
Independent practitioner
ESP32 Agent Setup Guide 1/3: Turn On AssistiveTouch & Install the Firmware
Independent practitioner
A $7 ESP32 lets an AI agent use your real iPhone (open source)
