# Documentation and public pages

Machine-readable docs, per-endpoint and per-code reference pages, domain permalinks, and the company pages.

Date: 2026-09-03

- The OpenAPI document is published at `/openapi.json` and `/openapi.yaml`.
- Every docs page has a Markdown twin at the same URL with `.md` appended, and `/llms-full.txt` gathers all of them.
- One reference page per endpoint, with request and response tables and code samples.
- Reference pages for every verdict reason, SMTP reason, and API error code.
- The free domain tools have permalinks: one page per domain for MX, SPF and DMARC, and disposable checks.
- New public pages: pricing, about, security, and this changelog.

Reference: https://spaw.co/changelog/2026-09-03-documentation-and-public-pages