Best X Builds

Best Developer Tools on X

Things engineers install to ship faster: CLIs, schedulers, fonts-for-code, agent calendars, local dashboards. 312 builds on this page, each with the original post.

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.

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.

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.

Xagentsai

AO

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

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

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.

Xaiclaude

Merge Agent Handler

An agent built with Claude, GitHub and Notion that finds recently merged PRs, summarizes what shipped, and posts a fresh digest to Notion every Monday.

Xaiagents

Install Instructions Agent

Generates software installation instructions for application owners and packaging teams, cutting the manual documentation work.

Xdeveloper toolsindie

MakerBeacon

A tight, curated devtool radar for solo builders, made as an alternative to FutureTools and Product Hunt noise.

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.

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.

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 sourcekimi

Kimi Code CLI

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

Xclaudecursor

Mac Notch AI Agents

Run Claude Code, Cursor, Grok, Codex, Antigravity and more side-by-side inside the Mac notch with smart notifications.