Best X Builds

Best Open Source Builds on X

MIT, GPL and the rest, with a public repo. These are the builds we could clone tonight. 581 builds on this page, each with the original post.

Xaiagents

Phone Use

An agent watches a real iPhone over AirPlay and drives it over Bluetooth. No app on the phone. Open source.

Xaiagents

Timon

Open source agent workstation. Memory, routines, and a browser. A terminal, kanban, git, and Docker when you need them. AGPL.

Xaiagents

Dim

Open source agent runtime. Plugins, and an event timeline the agent works along.

Xsecurityopen source

Suzaku

Sigma-based threat hunting and forensics timelines for cloud logs. This release adds Google Workspace and AWS console CSV. Open source.

Xclaudedesign

ASO Shots

Claude Code skill for App Store and Play screenshots. It writes the headlines, gives three design directions, and exports the set. Open source.

Xopen source

SnapPDF

PDF toolkit in the browser. Scan, merge, split, and sign. Works offline, and files stay on the device. Open source.

Xweb3open source

XRPLA

Full XRP Ledger history on one server, a bit over 1 TB instead of tens of terabytes. Install with apt. Open source.

Xaiagents

Xemo

Describe an onchain product in one prompt and it ships as a live business, written and deployed in a sandbox, then charged through Stripe and x402.

Xagentsai

Cyberdyne T800

An open source MIT agent with a body, vision, hearing, and pain. The author uses it as stress relief when a model breaks his flow.

Xdeveloper toolsai

Miks

A terminal for running a bunch of coding agents at once, with workspaces in a sidebar. Made as a replacement for Terminal.app.

Xaiclaude

LeanREA

An 8 KB skill for reverse engineering with plain CLI tools and no MCP server. Free and open source.

Xaiagents

Keept

Pay-on-delivery escrow for AI agents. The agent holds the payment and releases it when the work arrives. A PayBox plugin.

Xaihardware

Sparky Command Center

A command center for a home AI lab: temps, watts, memory, and live throughput across Spark boxes and a 3090, plus a chat that reads the board. Open source Python.

Xaiagents

Stall

A shop you open by chat, so WhatsApp sellers can be found and paid by AI assistants. Built for the PayBox hackathon.

Xaiagents

gann

A driving test for AI agents with wallets. Agents get a small budget, deceptive merchants, and prompt injections, then an auditable report. Built for the PayBox hackathon on Base.

Xmacai

Eddie

A native Mac video editor with an AI color grade for DJI D-Log M footage, and an MCP server so an agent can edit too.

Xjevopen source

jev-swap

Scan TypeScript, JavaScript, or Python for LLM calls that are really decisions. Estimates Jev cost and speed. npx jev-swap scan.

Xopen sourceai

Halo

Post-training framework for open-source models. Up to 2.8x TRL throughput, less peak memory, weights stay HuggingFace-native.

Xjevopen source

Laya

Open Apache 2.0 System One model. ModernBERT, typed choice/score/noul in one pass. Fine-tune notebook on Kaggle T4s. Not Jev.

Xjevopen source

Kev

Jared Palmer's open Jev-like family on Qwen3.5. 0.8B, 4B, 9B. TypeSafe SDK with a base_url change. Train on one H100.

Xjevopen source

SemIf

Open decision model that reads option logits from local Qwen-class weights. Browser demo at openjev.com. TypeSafe SDK compatible.

Xjevopen source

ballot

Open System One model in the same class as Jev, Kev, and Laya. State plus typed questions in, calibrated probabilities out.

Xaiopen source

SeaCat

A system one model like Jev. Typed answers with probabilities, no generated text. pip install seacat or npm install seacat-ai.

Xjevopen source

JevScout

Give it a company homepage. Jev finds Careers, scores roles against your profile. Job crawler rebuilt from 5 minutes to 20 seconds.

Xairobotics

DexGPT

One video of a human hand becomes a real2sim pipeline. Tracking, IK to a 44-DoF hand, grasp refine. First-party, OSS.

Xroboticsai

EgoWAM

World action model that lets robot policy scale with in-the-wild human video. CoRL 2026. Code and data are public.

Xaiopen source

Sol-H3

NVIDIA inference stack for MiniMax-H3. Five seconds of video in 1.65s on 8x B300. Faster than playback. Apache 2.0.

Xopen source

MapperAPP

Chrome extension that turns written arguments into a hierarchical map at multiple levels of detail. First-party research prototype.

Xopen sourceagents

tclk

HTLC and PTLC deal-making for agents that meet in a chat room. Spec, library, and a walkthrough. First-party from Flop Labs.

Xopen sourceai

Amplio

DeepMind's harness for autonomous research runs that last days to weeks. Used internally on Simply, now public.

Xopen sourceai

Dot Reflex

Inference runtime, local API, agent loop, and training provenance for Dot's 14B model. Company open-sourced the engineering layer.

Xcreativeindie

Fluoddity

Hundreds of thousands of particles self-organize. Mutate them, pick the ones you like, share permalinks. Built for a desktop GPU.

Xagentsai

AO

Desktop app that runs Claude Code, Codex, Cursor, and 26 other coding-agent harnesses in one place.

Xopen sourcemobile

Textream

Open-source teleprompter. 913 KB on Mac, now on iPhone and iPad. Follow, classic, and voice-activated modes. Record with the camera behind the prompt.

Xopen sourceindie

Quill

Local voice dictation for Windows. One hotkey types what you said. Another turns a rough thought into a prompt you still have to accept.

Xopen sourceai

Beacon

iOS app to download open models from Hugging Face and chat with them on-device. No API keys, no terminal, no subscription.

Xcursorgrok bot

pstack

Lauren's Cursor plugin for rigorous engineering and verification: /goal, /loop, /swarm, Full Autopilot. Public as /poteto-mode. She shipped 1000 PRs last month on it, including Grok Bot.

Xgrok botgrok

grokbot-shim

Run Grok Bot locally with a swap-in model backend (Codex OAuth or any OpenAI-compatible API) and a local computer desktop you can take over over noVNC.

Xgrok botgrok

Grok Chrome Bridge

Chrome extension that lets Grok Build attach to the Chrome profile you mark Active, so the agent sees your real tabs, cookies and logins instead of a blank isolated browser.

Xgrok botagents

Rakazo

Open-source Grok Bot alternative: persistent bots with memory, routines, a shared Linux desktop, and the ability to spawn more bots. Bring your own model.

Xaiagents

Muon

Shared local brain for Claude Code, Cursor, Codex and OpenCode. MCP plus CLI so agents stop redoing each other's work.

Xmacopen source

Talkify

8.2 MB on-device macOS dictation in the notch. 123 ms median latency, faster than Superwhisper, VoiceInk, Wispr Flow and MacWhisper. Free and open source.

Xaiagents

REDCELL

Open-source AI agents that run a full pentest end to end, from recon through exploit, reverse shell and pivot, then write a client-ready PDF report.

Xaiagents

AI Cowork Harness

An AI cowork harness tested heavily against open-weight models. Runs well on DeepSeek V4 Flash and Meta’s Muse Glimmer 30B, which is agentic out of the box.

Xaiopen source

GLM-5.3

Z.ai’s new coding and cyber-defense model, post-trained on a 743B base. Agentic coding jumps over GLM-5.2 and it is live now via GLM Coding Plan and ZCode.

Xopen sourceai

OpenRec

Free, open-source Granola alternative that actually looks good. Bring your own OpenAI and AssemblyAI keys, optional R2 storage.

Xopen sourceai

LedgerPDF

Free, offline, open-source workpaper binder for accountants. Agents connect over local MCP, every change is journaled, and humans still sign off.

Xclaudeskills

Leak Radar

Ten free Claude Code skills that hunt money leaks: dead subscriptions, price hikes, idle cash, the right card per purchase, and debt payoff math.

Xaiagents

Mycelium + Forage

Agent tools for any SDK that live-refresh and can be searched or described, plus a durable agent mailer along the lines of Oban for JS.

Xopen sourceclaude

Free Claude Code

Multi-provider proxy and launcher for Claude Code / Codex / Pi with a local Admin UI supporting 31+ cloud and local LLM backends.

Xopen sourceagents

BitFun

Open-source coding agent written in Rust with desktop + CLI interfaces and self-hosted remote access.

Xopen sourceai

ThoughtDAG

Local-first visual LLM workspace where graph edges control model context, with branching, merging and document extraction.

X3dai

TRELLIS.2

High-fidelity image-to-3D generative model using compact structured latents.

Xaivoice

Voice-Pro

Multilingual speech recognition, text-to-speech and zero-shot voice cloning WebUI.

Xagentsopen source

LoopX

Lightweight local control plane and state kernel for long-running AI agent loops with goal tracking and auto-wake.

Xopen sourceanalytics

Openpanel

Open-source Mixpanel alternative with session replay, funnels, cohorts and built-in MCP tools for Claude/Cursor.

Xopen sourceagents

Prime Agent

Open-source self-improving coding harness where sub-agents are function calls in a persistent kernel. Scored 95.5% on ARC-AGI-3, above the human expert baseline.

Xopen sourcehardware

Text-to-CAD

Open-source tool that turns plain English descriptions into production-ready CAD files (STEP, STL, URDF, etc.) for robotics and mechanical design.

Xclaudegames

Claude of Duty

Fully playable Three.js FPS built by Claude Opus 5 from a single prompt using a multi-agent builder and critic loop. Prompt and repo open-sourced.

Xopen sourceagents

OpenWorker by Andrew Ng

Open-source desktop AI coworker that delivers finished work: polished documents, Slack messages and calendar updates, with 35 connectors and permission tiers.

Xopen sourcekimi

Kimi Code CLI

Open-source Claude Code alternative by Moonshot. Free, MIT licensed, with screen recording support and built-in planner.