API registry / Omnisend
Omnisend
Newer 2026-dated and preview definitions are also published on developers.omnisend.com.
Apideck doesn't connect Omnisend yet, so its tools aren't available to your agent here. It's listed for its spec.
Omnisend API v3
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/b42jmls0kkny
- Server
- https://api.omnisend.com/v3
- Operations
- 42
- API version
- 3.0.0
- Last changed
- 1 Nov 2026
- sha256
- a3d4d700b5e23e70… · 111 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Contacts API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/3rl28bvmqgq96id
- Server
- https://api.omnisend.com/v5
- Operations
- 4
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 80f2366ec5868146… · 13 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Campaigns API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/28t2mn4jatkh
- Server
- https://api.omnisend.com/v5
- Operations
- 1
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 0531d3685fdbd92a… · 3 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Events API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/er16adomufhkd8j
- Server
- https://api.omnisend.com/v5
- Operations
- 1
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- b0a1c2fd851b052a… · 5 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Products API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/4pa16zvmmv0vawwr
- Server
- https://api.omnisend.com/v5
- Operations
- 5
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 0a252fbc0e79864a… · 9 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Product Categories API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/19uhg5hmn5zzrvp
- Server
- https://api.omnisend.com/v5
- Operations
- 5
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 57df04d59ebfd225… · 7 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Batches API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/l0vle3ml6f6ezt
- Server
- https://api.omnisend.com/v5
- Operations
- 4
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 60c9537244336c87… · 8 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Brands API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/azzp6h59msft9ca4
- Server
- https://api.omnisend.com/v5
- Operations
- 2
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 033b98b3559e7967… · 2 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.
Automations API v5
Verified- Format
- OpenAPI 3.0 · 3.0.0
- Source
- Vendor
- URL
- https://dash.readme.com/api/v1/api-registry/50x4i957mn5opzw9
- Server
- https://api.omnisend.com/v5
- Operations
- 1
- API version
- 5.0
- Last changed
- 1 Nov 2026
- sha256
- 5fcb8283dace00a2… · 2 KB
Definition behind developers.omnisend.com, served from the ReadMe API registry.