Provenance
29 distinct extensions were invented to do this job. Each one is a provider deciding OpenAPI would not carry something and building their own way through. Where a job has many names and few uses each, nobody won — the problem was solved privately, over and over.
29 extensions
2337 occurrences
3 vendor-named
The extensions
| Extension | What it appears to do | Uses | Providers |
|---|---|---|---|
| x-generated-from | `x-generated-from` appears in the info block. Its value is a string. Used by 411 providers across 548 OpenAPI documents. Observed values include `documentation`, `https://storage.googleapis.com/gtidoc | 548 | 411 |
| x-provenance | `x-provenance` appears in the info block. Its value is a structured object. Used by 106 providers across 519 OpenAPI documents. Consistent with provenance — this is inferred from where the key appears | 519 | 106 |
| x-synonyms | `x-synonyms` appears on operations. Its value is a list. Used by a single provider across 1 OpenAPI document. Consistent with provenance — this is inferred from where the key appears and what it carri | 244 | 1 |
| x-generated-by | `x-generated-by` appears at the root of the document and in the info block. Its value is a string. Used by 197 providers across 207 OpenAPI documents. Observed values include `claude-crawl-2026-05-08` | 207 | 197 |
| x-originalParamName | `x-originalParamName` appears on request bodies. Its value is a string. Used by 5 providers across 5 OpenAPI documents. Observed values include `payload`, `body`, `update`, `value`. Consistent with pr | 203 | 5 |
| x-origin | `x-origin` appears in the info block. Its value is a list. Used by 125 providers across 166 OpenAPI documents. Observed values include `origin`. Consistent with provenance — this is inferred from wher | 168 | 125 |
| x-usedIn | `x-usedIn` appears on schema objects and properties. Its value is a list. Used by a single provider across 3 OpenAPI documents. Consistent with provenance — this is inferred from where the key appears | 164 | 1 |
| x-source-url | `x-source-url` appears in the info block and on schema objects and properties. Its value is a string. Used by 42 providers across 83 OpenAPI documents. Observed values include `https://developers.deli | 107 | 42 |
|
x-konfig-is-used-in-successful-response
vendor |
`x-konfig-is-used-in-successful-response` appears on schema objects and properties. Its value is a boolean flag. Used by a single provider across 1 OpenAPI document. It sits in the `x-konfig-` namespa | 51 | 1 |
| x-derived-from | `x-derived-from` appears in the info block. Its value is a string. Used by 35 providers across 38 OpenAPI documents. Observed values include `https://colossal.com/wp-json/`, `https://www.a2bio.com/wp- | 38 | 35 |
| x-source-pages | `x-source-pages` appears at the root of the document. Its value is a list. Used by a single provider across 17 OpenAPI documents. Consistent with provenance — this is inferred from where the key appea | 17 | 1 |
| x-apievangelist-provenance | `x-apievangelist-provenance` appears in the info block. Its value is a structured object. Used by 12 providers across 13 OpenAPI documents. Consistent with provenance — this is inferred from where the | 13 | 12 |
| x-harvest | `x-harvest` appears at the root of the document. Its value is a structured object. Used by 2 providers across 12 OpenAPI documents. Consistent with provenance — this is inferred from where the key app | 12 | 2 |
| x-api-evangelist-provenance | `x-api-evangelist-provenance` appears in the info block. Its value is a structured object. Used by 9 providers across 9 OpenAPI documents. Consistent with provenance — this is inferred from where the | 9 | 9 |
| x-apisjson-source | `x-apisjson-source` appears in the info block. Its value is a string. Used by 9 providers across 9 OpenAPI documents. Observed values include `https://partner.calm.com/docs/api`, `postman/homeward-off | 9 | 9 |
| x-apievangelist-derived-from | `x-apievangelist-derived-from` appears in the info block. Its value is a string. Used by 5 providers across 6 OpenAPI documents. Observed values include `https://afero-docs.readthedocs.io/en/latest/Cl | 6 | 5 |
|
x-konfig-is-used-in-non-successful-response
vendor |
`x-konfig-is-used-in-non-successful-response` appears on schema objects and properties. Its value is a boolean flag. Used by a single provider across 1 OpenAPI document. It sits in the `x-konfig-` nam | 6 | 1 |
| x-apis-io-provenance | `x-apis-io-provenance` appears in the info block. Its value is a structured object. Used by 3 providers across 3 OpenAPI documents. Consistent with provenance — this is inferred from where the key app | 3 | 3 |
| x-harvested | `x-harvested` appears in the info block. Its value is a string. Used by 2 providers across 2 OpenAPI documents. Observed values include `2026-08-06`, `2026-07-21`. Consistent with provenance — this is | 2 | 2 |
| x-source-urls | `x-source-urls` appears in the info block. Its value is a list. Used by 2 providers across 2 OpenAPI documents. Consistent with provenance — this is inferred from where the key appears and what it car | 2 | 2 |
| x-api-evangelist-derived-from | `x-api-evangelist-derived-from` appears in the info block. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `https://github.com/1deg/resource-server- | 1 | 1 |
| x-api-evangelist-harvest | `x-api-evangelist-harvest` appears in the info block. Its value is a structured object. Used by a single provider across 1 OpenAPI document. Consistent with provenance — this is inferred from where th | 1 | 1 |
| x-apievangelist-harvested | `x-apievangelist-harvested` appears in the info block. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `2026-07-20`. Consistent with provenance — th | 1 | 1 |
| x-apis-json-derived-from | `x-apis-json-derived-from` appears in the info block. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `https://banking-docs.kanastra.com.br/ (public | 1 | 1 |
| x-apisjson-derived-from | `x-apisjson-derived-from` appears in the info block. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `postman/qgenda-collection.json`. Consistent wi | 1 | 1 |
| x-jentic-source-url | `x-jentic-source-url` appears in the info block. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `https://api.hypixel.net/`. Consistent with provena | 1 | 1 |
| x-modeled-from | `x-modeled-from` appears at the root of the document. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `documentation`. Consistent with provenance — | 1 | 1 |
|
x-ms-generated-by
vendor |
`x-ms-generated-by` appears in the info block. Its value is a structured object. Used by a single provider across 1 OpenAPI document. It sits in the `x-ms-` namespace, so its meaning is defined by ms | 1 | 1 |
| x-schema-provenance | `x-schema-provenance` appears on schema objects and properties. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `Partially verified. Live anonymous | 1 | 1 |