AgentScout / By role / Developers

AI agents for developers (2026)

Coding agents, review bots, docs servers and sandboxes that help software developers ship faster. We picked the top tools for 6 jobs developers do every day: 31 tools in all, 29 of them free or with a free tier.

Jump to: Write and edit code · Work in the terminal · Review pull requests · Give agents current docs · Test your app · Run several coding agents at once

Free tools from AgentScout for developers: Agent setup generator (CLAUDE.md, AGENTS.md, Cursor rules) · Token counter

How we picked: each section takes the tools matched to that task in our directory, putting tools whose category and stated use cases fit the task first, then ordering by tracked GitHub stars. No paid placements.

Write and edit code

Coding agents that write, edit and refactor code from plain-language requests, in your terminal, editor or browser. All 177 tools →

opencode Open source
Open-source terminal coding agent that works with many model providers. · ★ 213,329
Claude Code Paid
Anthropic's terminal coding agent that edits code, runs commands and handles git. · ★ 150,707
OpenAI Codex CLI Open source
OpenAI's open-source coding agent for the terminal; also runs in the cloud. · ★ 129,112
Graphify Open source
Turns a codebase plus its docs, SQL schemas, configs and PDFs into a knowledge graph that coding agents can query. · ★ 127,237
Gemini CLI Open source
Google's open-source terminal agent powered by Gemini. · ★ 107,334
Claude-Mem Open source
Gives coding agents memory across sessions by capturing what they do, compressing it and feeding the relevant context back in later. · ★ 101,230

Work in the terminal

Agents that live in your terminal: give them a task and they read files, run commands and propose changes. All 40 tools →

REA Open source
MCP server and CLI that lets coding agents reverse engineer native binaries, Electron and JavaScript apps, .NET assemblies and live websites, using Ghidra, Hopper or IDA under the hood. · ★ 301,645
opencode Open source
Open-source terminal coding agent that works with many model providers. · ★ 213,329
Claude Code Paid
Anthropic's terminal coding agent that edits code, runs commands and handles git. · ★ 150,707
OpenAI Codex CLI Open source
OpenAI's open-source coding agent for the terminal; also runs in the cloud. · ★ 129,112
Gemini CLI Open source
Google's open-source terminal agent powered by Gemini. · ★ 107,334
Open Interpreter Open source
Terminal coding agent forked from OpenAI's Codex and tuned for low-cost and open-weight models, with switchable harness modes that imitate tools like Claude Code. · ★ 68,591

Review pull requests

Agents that read diffs, leave review comments and catch bugs before a pull request is merged. All 7 tools →

GitHub MCP Server Open source
GitHub's official MCP server for letting agents work with repositories, issues, pull requests and Actions. · ★ 33,663
Qodo Freemium
AI code review and testing agents that work in the IDE, the terminal and pull requests to catch issues before merge. · ★ 13,415
Open SWE Open source
LangChain's asynchronous coding agent that takes work from GitHub issues, Slack or Linear, implements it in an isolated sandbox and opens a pull request. · ★ 11,034
Roomote Freemium
Cloud coding agent from the Roo Code team that runs your real dev environment, verifies its work, reviews code with a second model and hands back PRs with live previews; works from Slack, Teams, GitHub and Linear, self-hosted or on its cloud. · ★ 288
Almanax See site
AI security engineer that finds vulnerabilities in applications and smart contracts and reviews pull requests; acquired by depthfirst (June 2026).
Coldtea Paid
Agents that test every pull request on real devices, watch production and file issues before users hit them.

Give agents current docs

MCP servers that give coding agents current, version-specific documentation, so they stop guessing at outdated APIs. All 6 tools →

Context7 Freemium
MCP server and platform that feeds coding agents up-to-date, version-specific library documentation. · ★ 63,157
GitMCP Open source
Free remote MCP server that gives agents up-to-date docs and code for any GitHub project. · ★ 8,465
Microsoft Learn MCP Open source
Official Microsoft Learn MCP server giving agents up-to-date Microsoft documentation. · ★ 1,950
pg-aiguide Open source
Timescale's MCP server with PostgreSQL docs and best practices for agents. · ★ 1,870
Ref Freemium
Token-efficient documentation search for coding agents. · ★ 1,183
Vercel MCP Freemium
Vercel's official MCP server for searching docs and managing projects and deployments.

Test your app

Agents that write and run tests, click through your app and report what breaks. All 13 tools →

Strix Open source + cloud
Open-source AI agents that run penetration tests on your app to find and help fix security vulnerabilities. · ★ 69,022
Goose Open source
Extensible open-source AI agent that installs, runs, edits and tests code on your machine with any LLM and MCP extensions. · ★ 55,347
PentAGI Open source
Autonomous multi-agent system for running penetration testing tasks. · ★ 30,728
Qodo Freemium
AI code review and testing agents that work in the IDE, the terminal and pull requests to catch issues before merge. · ★ 13,415
Unity MCP Open source
MCP tools and CLI that let AI agents develop and test inside the Unity engine. · ★ 4,482
PentestAgent Open source
Agent framework for black-box security testing and bug bounty work. · ★ 3,188

Run several coding agents at once

Command centers, IDEs and CLIs for running several coding agents at once, each on its own task or Git worktree, then reviewing what they hand back. All 9 tools →

Orca Open source
Agent development environment for running a fleet of parallel coding agents on your own subscriptions and reviewing their work. · ★ 94,443
Herdr Open source
Runtime for running and managing many coding agents side by side. · ★ 44,377
Paseo Open source
Orchestrate multiple coding agents from desktop and mobile. · ★ 21,143
Superset Open source
Agentic IDE for orchestrating many coding agents in parallel. · ★ 15,289
Worktrunk Open source
CLI for managing Git worktrees so several AI agents can work in parallel. · ★ 9,263
Mission Control Open source
Self-hosted control plane for dispatching tasks to agents, reviewing runs and tracking spend. · ★ 6,358