| title | IIIF Registry of Known Extensions | ||||
|---|---|---|---|---|---|
| layout | spec | ||||
| tags |
|
||||
| cssversion | 2 |
The process for having an entry included in one of the IIIF extension registries is described in the [Process for Adding Entries to Registries][registry-process].
This table summarizes the services and extensions available and in which APIs they may be used.
| Icon | Meaning |
|---|---|
| ![required][icon3-req] | Required |
| ![recommended][icon3-rec] | Recommended |
| ![optional][icon3-opt] | Optional |
| ![not allowed][icon3-na] | Not Allowed |
| {: .api-table #table-reqs-icons} |
| Service/Extension | Type | Image 2 API | Image 3 API | Presentation 2 API | Presentation 3 API |
|---|---|---|---|---|---|
| [Image 2 API][image21] | service | N/A | N/A | ![recommended][icon3-rec] | ![recommended][icon3-rec] |
| [Image 3 API][image-api] | service | N/A | N/A | ![optional][icon3-opt] | ![recommended][icon3-rec] |
| Image Information | service | N/A | N/A | ![recommended][icon3-rec] | ![recommended][icon3-rec] |
| Search 1 | service | N/A | N/A | ![recommended][icon3-rec] | ![optional][icon3-opt] (prefer search2) |
| Search 2 (in development) | service | N/A | N/A | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| PhysDim | service | ![recommended][icon3-rec] | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ![not allowed][icon3-na] |
| PhysDim | extension | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| GeoJSON | service | ![recommended][icon3-rec] | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ![not allowed][icon3-na] |
| navPlace | extension | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| Text Granularity | extension | N/A | N/A | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| [IIIF Authentication API 1.0][auth10] | service | ![recommended][icon3-rec] | |||
| Auth 2 (in development) | service | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| [IIIF Change Discovery API][discovery-stable-version] | service | N/A | N/A | ![recommended][icon3-rec] | ![recommended][icon3-rec] |
| [IIIF Content State API][contentstate03] | service | ![not allowed][icon3-na] | ![recommended][icon3-rec] | ||
| Image API Selector | extension | ![recommended][icon3-rec] | ![recommended][icon3-rec] | ||
| Point Selector | extension | ![not allowed][icon3-na] | ![not allowed][icon3-na] | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
| Content Selectors | extension | ![not allowed][icon3-na] | ![not allowed][icon3-na] | ![not allowed][icon3-na] | ![recommended][icon3-rec] |
- [Behaviors][registry-behaviors]
- [Presentation API Extensions][extensions]
- [Motivations][registry-motivations]
- [Profiles][registry-profiles]
- [Services][registry-services]
- [TimeModes][registry-timeModes]
- [Types][registry-types]
- [ViewingDirections][registry-viewingDirections]
- [Image API Extensions][registry-image-extensions]
The [IIIF Registry of Activity Streams][registry-activity-streams] supports keeping up to date with IIIF resource changes according to the [IIIF Change Discovery API][discovery-api].
{% include acronyms.md %} {% include links.md %}