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AI · alternatives · 2026

24 alternatives to AgentStart

The Next.js boilerplate that stops Cursor hallucinations

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Our first coding model and new interface for agents

    Oct 2025 · cursor.com · its alternatives →

  2. 2

    Build with coding agents from anywhere

    Jun 2026 · apps.apple.com · its alternatives →

  3. 3

    Work with a powerful coding assistant anywhere

    2025 · its alternatives →

  4. 4

    The visual feedback tool for AI agents

    Mar 2026 · agentation.com · its alternatives →

  5. 5

    Contribute to corbt/agent.exe development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  6. 6
    Viberia▲146

    Hey HN, This is my take on the agent harness. Everything on an isometric map. Agents are grouped into "buildings" that run in a sequence or a loop; e.g., the CodeForge has an agent that writes a PRD, another one that implements, and a third that reviews. Everything is customizable, you build your own buildings/teams however you want. It's a Tauri app, really light (about 8x less energy than the closest competitor I benchmarked, so it actually runs from a coffee shop on battery). It's macOS only for now, but ping me if you are willing to test the Windows or Linux version. I've been…

    May 2026 · getviberia.com · its alternatives →

  7. 7

    Get 10x speed for building automations. AI copilot is here

    2025 · agentcraft.pro · its alternatives →

  8. 8AH

    While building my startup i kept running into the issue where ai agents in cursor create endpoints or code that shouldn't exist, hallucinates strings, or just don't understand the code. ask-human-mcp pauses your agent whenever it’s stuck, logs a question into ask_human.md in your root directory with answer: PENDING, and then resumes as soon as you fill in the correct answer. the pain: your agent screams out an endpoint that never existed it makes confident assumptions and you spend hours debugging false leads the fix: ask-human-mcp gives your agent an escape hatch. when it’s unsure, it calls…

    2025 · masonyarbrough.com · its alternatives →

  9. 9

    When we asked developers from large engineering teams, almost everyone is using Claude Code, Cursor, or Copilot. But adoption is still inconsistent. Some of us would have 15 agents running in Claude Code at the same time; some would still refuse to use any of them and write code manually. There's a fragmented AI development problem: - Five developers building similar features, and all of them start from scratch - No way to share "here's how we prompt AI to follow our architecture" - No trail of how the AI changes were generated - People leave the company, so does the their knowledge Aviator…

    2025 · aviator.co · its alternatives →

  10. 10
    AgentLoop▲100

    Starts a fresh Codex worker and critic every cycle

    Jul 2026 · agentloop.tools · its alternatives →

  11. 11

    I’ve been experimenting with embedding an Claude Code/Cursor-style coding agent directly into the browser. At a high level, the agent generates and maintains userscripts and CSS that are re-applied on page load. Rather than just editing DOM via JS in console the agent is treating the page, and the DOM as a file. The models are often trained in RL sandboxes with full access to the filesystem and bash, so they are really good at using it. So to make the agent behave well, I've simulated this environment. The whole state of a page and scripts is implemented as a virtual filesystem hacked…

    Jan 2026 · github.com · its alternatives →

  12. 12

    Hi HN, I’m Michael, I built AgentGrid with my friend Souren because we were tired of losing our coding sessions and couldn't keep track of what was actually being built across our many projects. Our approach was to use an infinite canvas desktop app for the TUIs we already know and love, mainly claude + codex. We drew inspiration from Figma and Railway. Overtime we added image nodes, notes, terminals, coding editors, source control, etc. I wasn't sure about it at first. It took me a month to give the first version Souren built a real try. What got me was an Apple System Update I've been…

    Jul 2026 · agentgrid.sh · its alternatives →

  13. 13
    Basin MCP▲168

    tl;dr - try Basin AI with Cursor/Windsurf, instruction here (https://mcp.basin.ai), and use API key hackernews to gain access. Hey HN — I’m Henry, co-founder of Basin, and I wanted to share something we’ve been working on called Basin MCP, a kind of QA infrastructure for AI coding copilots like Cursor, Windsurf, etc. We built Basin because we kept noticing the same thing: agentic coding tools are great at generating code, but have no idea if the thing they built actually works — or even matches the original intent, and so they're prong to hallucinations. Basically, they have…

    2025 · mcp.basin.ai · its alternatives →

  14. 14

    Stop AI hallucinations by fixing your repo in one command.

    Apr 2026 · agentlint.app · its alternatives →

  15. 15

    Open-source Next.js admin dashboard, built for AI agents

    Sep 2026 · nextadmin.co · its alternatives →

  16. 16

    Real-time AI coding assistant telemetry in your Mac's notch

    Jan 2026 · github.com · its alternatives →

  17. 17

    I've been building computer-use tools for a while, and I quietly launched this about a month ago (122 Stars on GH). I figured it was worth sharing here. Over the last few months, a lot of computer-use agents have come out: Codex, Claude Code, CUA, and others. Most of them seem to work roughly like this: 1. Take a screenshot 2. Have the model predict pixel coordinates 3. Click x,y 4. Take another screenshot 5. Repeat That works, but it's slow, expensive in tokens, and fragile. If the UI shifts a few pixels, things break. And the model still doesn't know what any element actually is. But the…

    May 2026 · github.com · its alternatives →

  18. 18

    Visual debugging, tracing, and replay for agent workflows

    Apr 2026 · agenticlens.in · its alternatives →

  19. 19

    Vibe Coding? Stop your AI Agent from guessing.

    2025 · chromewebstore.google.com · its alternatives →

  20. 20

    Stop AI agents from installing malicious packages.

    Jul 2026 · agentinel.habitwala.in · its alternatives →

  21. 21

    We’ve been building GladeKit, an AI agent for Unity game development that works directly inside the editor. Instead of just generating code, it reads the actual project state: scene hierarchy, scripts, selected objects, component values, installed packages, and compiler errors - then takes actions inside Unity. What it does today: - 150+ native Unity actions (create prefabs, wire components, configure Animator Controllers, build UI, set up physics, lighting, and NavMeshes) - Reads real editor context before taking action - Project-aware modes for Agent, Debug, and Ask workflows -…

    Apr 2026 · gladekit.com · its alternatives →

  22. 22

    The agent-first PostHog CLI. Query events with HogQL, manage feature flags, inspect persons and cohorts, and debug insights - from your terminal, or from Claude Code, Cursor, and other coding agents. - aaronkwhite/bosshogg-cli

    May 2026 · github.com · its alternatives →

  23. 23FL

    Hi HN! We just launched Codacy Guardrails, an IDE extension with a CLI for code analysis and MCP server that enforces security & quality rules on AI-generated code in real-time. It hooks into AI coding assistants (like VS Code Agent Mode, Cursor, Windsurf), silently scanning and fixing AI-suggested code that has vulnerabilities or violates your coding standards, while the code it’s being generated. We built this because coding agents can be a double-edged sword. They do boost productivity, but can easily introduce insecure or non-compliant code. One recent research team at NYU found that 40%…

    2025 · its alternatives →

  24. 24

    The first AI-native SaaS starter kit (Next.js + Elysia)

    Feb 2026 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →