libopenapi
MIT
A high-performance Go library for OpenAPI 2.0, 3.0, 3.1 and 3.2 that also reads Overlay and Arazzo documents into a typed model. The largest codebase in this list by a wide margin and the one most likely to already be a dependency of the Go tooling you run; its Arazzo support rides on the same document model as its OpenAPI support, which is what makes it the natural parser for a Go-based runner.
Arazzo
Specifications it implements
What this tool does to each specification, in the role vocabulary. Follow a standard through to standards.apievangelist.com for what it actually specifies.
| Standard | Role | What that means |
|---|---|---|
| Arazzo | parsesalso validates |
Using this from an agent
- Interfaces
library- Install
-
go
github.com/pb33f/libopenapi - Consumes
- arazzo, openapi, openapi-overlay
- Emits
- go
- Runtime
- Runs offline Deterministic Read-only No credentials
Where it applies
Jobs this tool actually does, and the surface each one is exercised on.
Load an Arazzo document into a typed Go model alongside the OpenAPI it references.
coding-agentci-pipeline
A parser, not a runner — it reads the document; executing the steps is your code.
- Website
- https://pb33f.io/libopenapi/
- Repository
- https://github.com/pb33f/libopenapi
- License
- MIT — reported by the GitHub API, verified 2026-09-16
- Stars
- 874 · last commit 2026-09-14
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All tools by adoption
/tools.json,
against the tool.schema.json
schema, using the roles.json
vocabulary. Start at /llms.txt.