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Spectral

apartment 31 companies hiring Radar: Established Apache-2.0

The API style-guide linter — validates OpenAPI, AsyncAPI and Arazzo documents against rulesets you write yourself, and emits machine-readable findings with source locations.

OpenAPIArazzo

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.

StandardRoleWhat that means
OpenAPI validates The de facto API style-guide linter; also the only mature Arazzo validator.
Arazzo validates
Using this from an agent
Interfaces
clilibraryci-action
Install
npm @stoplight/spectral-cli
Invoke
npx @stoplight/spectral-cli lint <spec.yaml> --ruleset <.spectral.yaml> --format json
Consumes
openapi, asyncapi, arazzo, json, yaml
Emits
json, junit, sarif, github-actions, pretty
Runtime
Runs offline Deterministic Read-only No credentials

Where it applies

Jobs this tool actually does, and the surface each one is exercised on.

Check an API description against an organisation's own design rules before it ships.
coding-agentci-pipeline

The highest-leverage agent use of any tool here — the output is a structured list of findings with paths and line numbers, so the agent can go fix them rather than summarise them.

Prove a third-party API description is fit to build against before generating a client from it.
coding-agent
Author a ruleset that encodes a governance policy, then run it across an estate.
coding-agentci-pipeline
Validate an Arazzo workflow document — currently the most capable option for doing so.
coding-agent
Website
https://stoplight.io/spectral
Repository
https://github.com/stoplightio/spectral
License
Apache-2.0 — reported by the GitHub API, verified 2026-08-11
Stars
3175 · last commit 2026-08-08
Companies hiring
31 — distinct companies whose job postings name this tool, Q3-2026. A demand signal, not a deployment count.
Reading this as an agent? Don't scrape the page — this entry is published as structured data at /tools.json, against the tool.schema.json schema, using the roles.json vocabulary. Start at /llms.txt.
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