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, 28 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 391 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
CC Switch Open source
Desktop manager for Claude Code, Codex, Gemini CLI, OpenCode, OpenClaw and other coding agents that switches API providers in one click and manages MCP servers, skills and prompts. · ★ 145,685
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
Pi Open source
Minimal, extensible open-source terminal coding agent and agent toolkit from Earendil, with a multi-provider LLM API, TypeScript SDK, RPC mode and installable extensions, skills and themes. · ★ 116,073

Work in the terminal

Agents that live in your terminal: give them a task and they read files, run commands and propose changes. All 128 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
CC Switch Open source
Desktop manager for Claude Code, Codex, Gemini CLI, OpenCode, OpenClaw and other coding agents that switches API providers in one click and manages MCP servers, skills and prompts. · ★ 145,685
OpenAI Codex CLI Open source
OpenAI's open-source coding agent for the terminal; also runs in the cloud. · ★ 129,112
Pi Open source
Minimal, extensible open-source terminal coding agent and agent toolkit from Earendil, with a multi-provider LLM API, TypeScript SDK, RPC mode and installable extensions, skills and themes. · ★ 116,073

Review pull requests

Agents that read diffs, leave review comments and catch bugs before a pull request is merged. All 24 tools →

Open Code Review Open source
Alibaba's AI code review CLI that combines deterministic pipelines with an LLM agent to post line-level comments on Git diffs, using OpenAI or Anthropic models. · ★ 47,560
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
Emdash Open source
A free, open-source agentic development environment (YC W26) for running Claude Code, Codex and other coding agents in parallel, each in its own worktree, then reviewing diffs, PRs and CI in one place. · ★ 6,037
Shippie Open source
Extendable code review and QA agent that reads your diff, explores the codebase and posts focused review comments. · ★ 2,510

Give agents current docs

MCP servers that give coding agents current, version-specific documentation, so they stop guessing at outdated APIs. All 8 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 Source-available
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
Grounded Docs MCP Open source
Self-hosted MCP server that indexes up-to-date documentation from websites, GitHub, npm and PyPI so coding agents query the right version. · ★ 1,815
Ref Freemium
Token-efficient documentation search for coding agents. · ★ 1,183

Test your app

Agents that write and run tests, click through your app and report what breaks. All 25 tools →

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
Midscene.js Open source
Vision-driven UI automation and E2E testing framework where a GUI agent carries out natural-language steps on web, mobile and desktop apps. · ★ 15,311
MCP Inspector Open source
Official developer tool for testing and debugging MCP servers through a web UI, CLI or terminal UI. · ★ 11,095
MobileBuildMCP Open source
Sentry's MCP server and CLI that gives coding agents build, test and run tools for iOS and macOS projects. · ★ 6,497
Unity MCP Open source
MCP tools and CLI that let AI agents develop and test inside the Unity engine. · ★ 4,482
NitroStack Open source + cloud
TypeScript framework with decorators and dependency injection for building, testing and deploying MCP servers and MCP apps, with a companion desktop studio. · ★ 2,524

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 12 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 Source-available + cloud
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