because the agent that wrote the code shouldn't be the one that says it works.
Install the CLI →
Free and open source. Docs →
Starred by engineers at
- Meta
- Shopify
- Uber
- Booking.com
- GitHub
- Cloudflare
- Atlassian
- JetBrains
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Because we were tired of being gaslit by agents telling us broken code was ready.
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No. The reviewers and tests you set up do, and a run only passes when they accept it. Want to look anyway? Use
--pr. -
Keep using them. Zeroshot runs your agent as the worker and as separate reviewers, so the one that wrote the code never approves it.
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No. Locally it runs on the Codex or Claude Code login you already have, subscription included. You can also use keys for OpenAI, Anthropic, OpenRouter or Amazon Bedrock, with a different model per agent. docs ↗
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Write it as jobs that depend on each other and send them with
zeroshot plan submit. Each job runs through its own graph, and Zeroshot Cloud starts it once the jobs it needs have merged. -
On your laptop after
npm install -g @the-open-engine-company/zeroshot, on your own server from theghcr.io/the-open-engine/zeroshot-target:latestimage, or in Zeroshot Cloud, hosted in the EU. docs ↗ -
A lane runs one job at a time. One lane is included and each extra lane is $100 / month. A Boost starts a queued run immediately for $5, sold in packs of 10, 25, 50 or 100 and valid for 90 days. Prices in USD, before tax.
bring your own graph topology.
Add your own reviewers, tests, and repair loops.
what early adopters love.
“You have really allowed me to just… create more things in my personal time than I have before.”
tester running Zeroshot on Claude and Codex
“It’s really nice to be able to customize the nodes and build your own loop.”
tester, Kubernetes platform, translated from Norwegian
“I really like the mental models of creating profiles. It’s been so useful for me!”
tester, iOS app pipeline
not just
for coding.
Autoresearch runs experiments through three independent judges.
Explore autoresearch ↗
Watch a research run · 19 sec
1.9k stars, from people at AWS, Microsoft, Google and 466 other companies
Star it on GitHubour testers also like our mechanical constraints layer.
Opcore on GitHub ↗stay in the loop
who's building it
Three co-founders. Eivind and Michael met doing machine learning PhD research at the Technical University of Munich. Olle has 7 years in startup growth and runs our brand.