Dev tools · alternatives · 2026
24 alternatives to Antigravity Kit
AI Agent Capability Expansion Toolkit
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.
- 1
Run and monitor several coding agents at once in an IDE
Nov 2025 · antigravity.google · its alternatives →
- 2
Skillkit▲252It's an open-source project that lets you create, translate, and work with multiple agents at the same time, and more.
Feb 2026 · agenstskills.com · its alternatives →
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Antigravity Remote Controlfree tier, from $0/mo▲165Drive Antigravity agents from any browser
Aug 2026 · antigravity.google · its alternatives →
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Hi. I’m a high school student studying for my GCSEs. I was using Google Antigravity heavily for my side projects, but I kept hitting the usage limits, and getting random "agent terminated" errors. So I decided to try build my own version of the IDE. I love the UI, so I copied it as accurately as possible, and then hooked up some logic into it, including the INCREDIBLY finicky webcontainer api. I tried to keep it super lightweight, no build steps, or dependencies, and now that its open source, I'm hoping people can build things on top of it that arent possible with closed source tools, like…
May 2026 · github.com · its alternatives →
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ActionKit▲367Instantly add 1000+ integration actions to your AI agent
2025 · useparagon.com · its alternatives →
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Agent Skills▲190Curated agent-skills: 1,000+ practical skills selected from 63,000+ GitHub skills. Filter by newest/hot/installs. Works with Claude Code, Codex, ChatGPT, and Cursor.
Mar 2026 · agentskill.sh · its alternatives →
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Kastrafree tier, from $19.99/mo▲332Hi HN, Fernando and I built Kastra. Kastra intercepts AI agent tool calls and evaluates them against deterministic policies before they execute. We built this product to control pre- and post-inference workloads. This is aimed at developers using coding agents like Claude Code, Codex, Cursor, and OpenClaw. Kastra pushes an allow, hold, and deny decision before the action runs. You can build these policies in plain English from the web app. The interception engine evaluates the tools, targets, and parameters of every action at sub 1ms at a scale of billions of interceptions per day. We also…
Jul 2026 · kastra.ai · its alternatives →
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A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.
May 2026 · ahk.cardor.dev · its alternatives →
- 11
Antigravity AI Directory is a game-changer for developers looking to leverage autonomous AI workflows, premium prompts and MCPs. Its focus on modern development stacks and real-time collaboration makes building scalable, maintainable apps easier than ever. Excited to see how this revolutionizes AI-driven software development!
Nov 2025 · antigravityai.directory · its alternatives →
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Allows Agentic IDEs like Antigravity to build n8n workflows
Feb 2026 · n8nlibrary.net · its alternatives →
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Build multi-agent systems with Google's open framework
2025 · adk.dev · its alternatives →
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Repo guardrails for reliable AI coding agents
May 2026 · baskduf.github.io · its alternatives →
- 17
Multi Agent Continuous Context Harness - MACCHA solves the problem that every AI coding session starts from zero. It combines a file-based 7-tier context architecture with a working memory engine (Memanto) that features vector embeddings, confidence decay, and semantic conflict detection — so Antigravity, OpenCode, and Claude Code all share the same persistent, self-improving brain. No 24/7 daemon needed.
Jun 2026 · github.com · its alternatives →
- 18KO
2025 · kit.cased.com · its alternatives →
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Lynecode is India's first AI coding assistant from Lynelabs. Terminal-first design, project indexing, and safety snapshots. Free open-source AI coding tool from Lynelabs.
Dec 2025 · lynecode.com · its alternatives →
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7 powerful AI tools. Real prompts. No fluff.
2025 · innovate2.gumroad.com · its alternatives →
- 21
We built two desktop apps for developers and data scientists who want AI assistance without subscription lock-in or API proxying, or to run against local models. - Calliope AI IDE: VSCode-based, full dev environment with AI chat, live coding, and autonomous agents - Calliope AI Lab: JupyterLab under the hood, with built-in AI chat and local Postgres Both free. No account. No login. BYOK (OpenAI, Anthropic, Google, Mistral, Ollama). How it's different from Cursor/Continue/Windsurf/Antigravity: Your API keys stay local. Requests go direct to providers – we don't route through…
Dec 2025 · calliope.ai · its alternatives →
- 22
84 drop-in skills turning Claude Code into a Senior Engineer
Aug 2026 · shaforostov5.gumroad.com · its alternatives →
- 23
10 evidence-first workflows for AI coding agents
Jul 2026 · ai-agent-skills-pack.vercel.app · its alternatives →
- 24
A set of AI-powered workflows to elevate your operations
2025 · elleithy.gumroad.com · 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 →