
zerolang
The programming language for agents
The Lens
zerolang is an experimental programming language built for AI agents, not people. The idea: give an agent a language whose compiler speaks back in clean, structured JSON, so the agent can check syntax, trace dependencies, and get repair suggestions without parsing human-readable error spew. It comes from Vercel Labs, Apache-licensed and free.
Everything about it is tuned for machines: token-efficient syntax, fast startup, low memory, zero dependencies. The compiler exposes stable inspection commands with predictable output contracts, which is exactly what an autonomous coding loop needs to work reliably instead of guessing.
The catch is right there in the README: this is pre-1.0, security holes are expected, and it's explicitly not for production, sensitive data, or trusted infrastructure. It's a research bet on what agent-native tooling could look like, not something to build a product on yet. Worth watching if you work on autonomous code generation. Skip it if you need anything stable.
Free vs Self-Hosted vs Paid
fully freeFree: Apache-2.0, free, install via a public script. No tiers.
Self-hosted: It's a language and compiler you install locally. Nothing to host.
Paid: No paid version. It's a Vercel Labs research project.
Free and open source, but explicitly pre-1.0 and not for production.
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License: Apache License 2.0
Use freely. Patent grant included.
Commercial use: ✓ Yes
About
- Owner
- Vercel Labs (Organization)
- Stars
- 5,172
- Forks
- 340
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