# Blog

> News and updates from Corpo API.

Canonical: https://corpoapi.com/blog

- [One OpenAPI spec, every surface](https://corpoapi.com/blog/one-spec-everywhere): How the API contract drives the docs, the endpoint pages and the machine-readable files we publish.
- [Error responses you can act on](https://corpoapi.com/blog/error-responses-that-help): An error code is a support conversation you do not have to have. Here is the shape we use.
- [Usage-based billing without the surprise invoice](https://corpoapi.com/blog/usage-based-billing): How a starter allowance, per-company pricing and a daily dedup keep an API bill predictable.