This week’s devtools news shows AI stepping firmly into the developer’s day‑to‑day. CodeRabbit raised $60M to automate code reviews at scale, Macroscope and Lightbase unveiled tools to make entire codebases easier to understand, and Kluster.ai launched real‑time fixes for AI‑written code inside your IDE. On the testing front, MetalBear, Endform and Blacksmith are pushing to shorten cycles with smarter environments and faster feedback.
Whether it is reviewing, debugging, or shipping, the story is the same: AI is becoming less about writing lines of code and more about helping developers improve quality and ship with confidence.
🏆 Funding Wins
CodeRabbit Banner (Source: Linkedin)
CodeRabbit Snags $60M Series B At $550M Valuation
CodeRabbit, founded by Harjot Gill, has bagged $60M in Series B funding led by Scale Venture Partners with NVentures and CRV. Gill saw engineers racing ahead with GitHub Copilot but hitting delays when those AI-generated lines needed review. CodeRabbit automates quality gates by understanding each company’s specific codebase and offering precise feedback. Now powering more than 8,000 businesses including Chegg, Groupon and Mercury, the platform is growing ARR at 20% month over month and sits above $15M. Developers say the service cuts their human review load in half, and Gill believes its dedicated approach makes it sturdier than bundled code‑assistant features.
🐇 Congratulations to the CodeRabbit team — see the news
MetalBear Raises $12.5M To Speed Cloud Testing
Tel Aviv startup MetalBear, makers of open-source tool mirrord, has raised a $12.5M Seed round led by TLV Partners with investors including TQ Ventures and Sentry co-founder David Cramer. Mirrord lets developers run local code as if it were deployed in a remote cloud system, interacting with live databases, APIs, and queues without spinning up full staging setups. That approach shortens testing cycles dramatically. Co‑founder Eyal Bukchin put it succinctly:
AI can generate code in seconds, but developers still face significant friction testing it… Every small change requires a new deployment cycle, leading to constant context switching. This stop-and-start process is a major bottleneck in modern development.
Early adopters at AWS, NVIDIA and Apple report iteration times dropping by as much as 80%.
🐻 Big win for MetalBear — read about the raise
Macroscope Lands $40M To Understand The Codebase
San Francisco startup Macroscope has secured $40 million from GV, Lightspeed and Thrive Capital. Founded by Kayvon Beykpour, Joseph Bernstein and @Rob Bishop, the team is known for selling Periscope and Magic Pony to Twitter. Their new venture is an “AI-powered understanding engine” that replaces the endless meetings and updates leaders rely on to track codebase changes. It installs via GitHub and connects to tools like Slack and JIRA, giving automatic pull request summaries, productivity insights and natural‑language answers.
🔬 A big step for Macroscope — details of the launch and raise are here
Blacksmith Hammers $10M To Fix CI Bottlenecks
Blacksmith, founded by Aditya Jayaprakash, Aditya Maru, and Aayush Shah, has raised a $10M Series A led by Google Ventures. The YC alum is taking on slow, costly continuous integration by running GitHub Actions on high-performance gaming CPUs. The pitch is simple: CI jobs that run twice as fast for up to 75% less cost. More than 12,000 developers across 800+ companies including Supabase and Chroma already run over a billion CI minutes in Blacksmith each month. The team is also rolling out observability features to tackle flakiness and test analytics without extra monitoring tools. ARR has already hit $1M.
⚒️ Congrats to Blacksmith — read the funding announcement and give Blacksmith a try here
Plus + Read about Lightbase and their €2.2m pre-seed round in our DevTools of the Week section
🚀 3, 2, 1… Launches
Theneo Image (Source: Linkedin)
Theneo Debuts Cursor For Your API
API docs startup Theneo has moved beyond documentation to launching an AI-powered API editor they’re calling “Cursor for your APIs.” Founded by Ana Robakidze the company has already helped 15,000+ teams generate developer docs, but saw engineers juggling too many tools to edit, validate and test OpenAPI specs. The new editor combines design, linting, doc previews, and test requests in a single lightweight tab — with AI‑assisted edits always gated by a diff. Everything runs client-side, with support for Gemini, Claude, or ChatGPT keys. Next up: deeper MCP testing and repo integrations. No signup, free to try.
🧩 Kudos to Theneo — give it a go | see the PH launch
Clix Simplifies Mobile Push With One Command
Sending push notifications is notorious for rough edges. Minyong Lee and team launched Clix to change that. A single clix install sets up working notifications for iOS and Android, no Firebase headaches or black‑box debugging required. Developers get real‑time logs, clean APIs, and SDKs for automating campaigns based on time or behavior triggers. The focus is speed of setup and clear visibility: if a message doesn’t land, you know why. Early users are praising how quickly they can move from test to production.
📲 Congrats to the Clix team — explore Clix | see the PH launch
Endform Launches To Speed Playwright Testing
Playwright users tired of slow runs now have Endform, built by Jakob Norlin and Oliver S.. The new platform claims to be the fastest Playwright runner, executing tests fully in parallel and tracking flaky failures over time. Swapping npx playwright test for npx endform test is enough to get started, with analytics folded in to keep suites in shape. The founders, veterans of high‑volume testing infra, say beta users are already running thousands of tests a day. Roadmap items include self‑healing tests and MCP servers for historical insights.
🧪 Hats off to Endform — try it | see the PH launch
Kluster.ai Auto‑Fixes The Flaws In AI Code
Over 40% of AI‑generated code contains hidden issues, according to Julio Viera and the team at kluster.ai. Their new tool plugs directly into IDEs like VS Code, Cursor and Claude Code to review and fix mistakes as the AI writes them. By combining the live conversation context with your codebase patterns, Kluster.ai catches bugs, logic errors and security gaps before they break your build. Each fix makes the next one smarter by training on your team’s past decisions. The product launches with a free first month for Product Hunt users.
👨🏿💻 Big launch for Kluster — explore here
Orchids Introduces AI Full Stack Engineer
YC‑backed Orchids, founded by Kevin Lu, is calling itself the world’s first “AI full stack engineer.” Ranked #1 on UI Bench and Design Arena, Orchids claims to outperform Devin, Cursor, Replit and others by nearly 3x on internal app and site building benchmarks. It can deliver frontend and backend together, complete with auth, databases and payments, all without third‑party integrations. The team says it is the first AI builder where outputs no longer look “AI‑generated.” Recent validation came from Figma CEO Dylan Field, who shared a leaderboard showing Orchids ahead of rivals.
🌸 Congrats to Orchids — start building
Recall.ai Adds SDK For Bot‑Free Recording
Fresh off its $38M Series B, Recall.ai has launched a Desktop Recording SDK that lets developers embed call recording directly in their applications, no meeting bots required. The tool captures transcripts, speaker names and metadata across any desktop meeting app and delivers them through the same Recall API already used by over 2,000 companies including HubSpot and ClickUp. Co‑founders David Gu and Amanda Zhu (hiring content creators) say the update makes it possible to build features like voice‑driven documentation or analytics natively in any product.
🗣️ Another milestone for Recall — learn more here
🔦 DevTool of the Week: Lightbase
Lightbase Banner (Source: Linkedin)
Most engineering teams do not lose time writing code, they lose it finding context. Meetings, onboarding, and constant questions add up to half of a developer’s week. Former Seedtag CTO Paul Goldbaum saw this firsthand and decided to build a system that fixes it. The result is Lightbase, a new AI-powered knowledge platform that turns your codebase into a living map of how systems work.
Over the past months, we’ve been building Lightbase: a knowledge platform that helps engineering teams reclaim up to 50% of the time lost to non-productive work every week (Goldbaum)
Along with the announcement that the company is coming out of stealth, they’ve announced a €2.2M pre-seed raise. Backed by Picus Capital, Kfund, Helloworld, and angels from Seedtag, Sumo Logic and Delivery Hero, Lightbase is addressing what Goldbaum calls the real bottleneck, lack of context, not speed of code generation.
The platform performs deep code analysis to understand relationships between services, giving engineers instant, accurate answers about architecture, data flows, and dependencies. That cuts onboarding time, reduces pings to seniors, and preserves institutional knowledge when people move teams. Early adopters are already seeing shorter cycle times and smoother handoffs.
The Lightbase team, including Carlos Barreiro Mata, Fernando Roldán, Esther Lozano and Juan Bautista Menchero Amigo, is opening up early access now. For companies feeling the drag of lost engineering time, this could be the tool that brings focus back to building.
💡 Big congrats to Lightbase — explore early access
Got a launch, raise, or tool we should feature next week?
Reach out to one of our team.
Louise Ogilvy (Recruitment Director) – UK/USA
Becca Combe MIRP CertRP (Lead Recruiter) – USA
Ben Chipchase (Lead Recruiter) – UK
Natalie Harper (Marketing Administrator)
Looking for your next DevTools role?
Visit devtoolsjobs.com
