x-status
`x-status` appears in the info block and on operations. Its value is a string. Used by 27 providers across 76 OpenAPI documents. Observed values include `validated`, `modeled`, `Work in progress`, `STABLE`. Consistent with data & schema semantics — this is inferred from where the key appears and what it carries, not from any published definition.
Where it appears
| Location in the document | Occurrences | |
|---|---|---|
| info | 72 | |
| operation | 33 | |
| server | 2 |
What its value looks like
| Value shape | Occurrences |
|---|---|
| string | 105 |
| object | 2 |
Observed values
Sampled from the specifications, most frequent first.
Providers publishing it
All 27.
Why this is not in OpenAPI
Extensions exist because a provider needed something the specification would not carry. Most of what they hold is not the API contract at all — it is operational metadata about the contract: documentation, lifecycle, policy, provenance, and now agents. That metadata is usually better placed alongside the contract, in an Overlay or an APIs.json index, than crammed inside it. See everything else doing the data & schema semantics job.