# Appear > Appear is the programmable automation layer for your API schema lifecycle. > Discover real API behaviour, keep OpenAPI/JSON Schema accurate, and feed reliable contracts to engineers and AI agents. ## Primary - [Home](https://www.appear.sh/): Product overview and FAQ - [API Toolkit](https://www.appear.sh/api-toolkit): OpenAPI, JSON Schema, and curated API tools - [Specs Hub](https://www.appear.sh/api-toolkit/specs): Interactive OpenAPI and JSON Schema reference with AI search - [Blog](https://www.appear.sh/blog): Engineering writing on API docs, agents, and schema automation - [Docs](https://docs.appear.sh): Product documentation ## OpenAPI reference (crawlable) - [OpenAPI FAQ](https://www.appear.sh/api-toolkit/specs/openapi/faqs) - [OpenAPI Glossary](https://www.appear.sh/api-toolkit/specs/openapi/glossary) - [Most Misunderstood OpenAPI](https://www.appear.sh/api-toolkit/specs/openapi/misunderstood) ## JSON Schema reference (crawlable) - [JSON Schema FAQ](https://www.appear.sh/api-toolkit/specs/json-schema/faqs) - [JSON Schema Glossary](https://www.appear.sh/api-toolkit/specs/json-schema/glossary) - [Most Misunderstood JSON Schema](https://www.appear.sh/api-toolkit/specs/json-schema/misunderstood) ## Optional - [About](https://www.appear.sh/about) - [RSS](https://www.appear.sh/blog/rss.xml) - [Privacy Policy](https://www.appear.sh/privacy-policy) ## Machine-readable indexes - Specs index manifest: https://www.appear.sh/specs-index/manifest.json - OpenAPI tools catalogue: https://www.appear.sh/openapi-tools.json