Summary and recommendation
SimilarWeb's public API is a data and analytics API - covering web traffic, keywords, and audience insights - and exposes no user-management, seat-provisioning, or role-assignment endpoints.
Authentication uses an API key passed as a query parameter or header, but this applies exclusively to analytics data calls.
There is no SCIM 2.0 endpoint, no IdP connector support (Okta, Entra ID, Google Workspace, OneLogin), and no webhook system for user-lifecycle events.
All user administration is UI-only as of the latest available documentation.
API quick reference
| Has user API | No |
| SCIM available | No |
| SCIM plan required | N/A |
Authentication
Auth method: Not documented
User object / data model
User object field mapping is not yet verified for this app.
Core endpoints
Endpoint coverage is not yet verified for this app.
Rate limits, pagination, and events
Rate limits: Not documented
Rate-limit headers: No
Retry-After header: No
Rate-limit notes: Not documented
Pagination method: none
Default page size: 0
Max page size: 0
Pagination pointer: Not documented
Webhooks available: No
Webhook notes: No webhook system for user-management events is documented in official SimilarWeb developer or help center resources.
Alternative event strategy: User administration (inviting users, assigning roles) is performed manually through the SimilarWeb web UI under Account Settings.
SCIM API status
- SCIM available: No
- SCIM version: Not documented
- Plan required: N/A
- Endpoint: Not documented
Limitations:
- No SCIM provisioning endpoint is documented by SimilarWeb.
- No IdP connectors (Okta, Entra ID, Google Workspace, OneLogin) for automated provisioning are listed in official documentation.
Common scenarios
Because SimilarWeb publishes no user-management API surface, there are no supported programmatic scenarios for provisioning, deprovisioning, or role updates.
Developers building identity graph pipelines that need to reflect SimilarWeb access state for example, correlating active SimilarWeb seats against a canonical user directory
have no API-based read path for current user or seat data.
Any integration attempting to automate access would require screen-scraping or manual export, both of which are unsupported and fragile approaches.
Scenario implementations are not yet verified for this app.
Why building this yourself is a trap
The core trap is assuming SimilarWeb's analytics API implies a broader platform API. It does not. The analytics endpoints are read-only data surfaces and carry no identity or entitlement context.
Teams building identity graph coverage across their SaaS portfolio will find SimilarWeb is a gap: no SCIM, no provisioning webhooks, no user-list endpoint, and no documented restoration path for removed accounts. Until SimilarWeb extends its API or adds SCIM support, this app cannot participate in automated access lifecycle workflows.
Automate SimilarWeb workflows without one-off scripts
Stitchflow builds and maintains end-to-end IT automation across your SaaS stack, including apps without APIs. Built for exactly how your company works, with human approvals where they matter.
