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Optimizely

Optimizely Event API

The Experimentation data-ingest endpoint. Accepts decision and conversion event payloads from SDKs and server-side integrations. Regional hosts for US and EU. Harvested verbatim from the provider's published OpenAPI 3.2.0 document 2026-08-13.

Documentation Provider Profile APIs.io OpenAPI GitHub

Optimizely Event API is one of 50 APIs that Optimizely publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Event and Analytics. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 1 operation across 1 path, and defines 7 schemas. It is described by OpenAPI 3.2.0, at version 1.3.0.

Requests are made against 2 base URLs: https://logx.optimizely.com/v1, https://eu.logx.optimizely.com/v1.

1 operations 1 paths 7 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.3.0
Base URL
https://logx.optimizely.com/v1
Resource Areas
1

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

API Reference 1

Log Endpoint

POST
/events
Log Endpoint
1 param body → 204400500

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Event (10 properties), EventBatch (6 properties), Attribute (4 properties), Decision (4 properties). Each schema is shown below with its type and property counts.

EventBatch
object
6 properties 2 required
Visitor
object
4 properties 2 required
Snapshot
object
2 properties 1 required
Decision
object
This object represents a decision that was made to bucket a visitor into a particular experiment and variation.
4 properties 3 required
Event
object
10 properties 2 required
Attribute
object
An Attribute describes some feature or characteristic of the visitor.
4 properties 2 required
Tags
object
Arbitrary key value pairs attached to an event. The value can be a string, integer, number, or booean. A non-string type can also be sent as a string value pre…

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

optimizely-experimentation-data-optimizely-event-api-openapi.json Raw ↑

Other APIs Optimizely publishes across the network.

Optimizely Experimentation REST API v2
AE Profile APIs.io
Optimizely Feature Experimentation Flags API v1
AE Profile APIs.io
Optimizely Flags Scheduling API
AE Profile APIs.io
Optimizely Permission Service API
AE Profile APIs.io
Optimizely Agent API
AE Profile APIs.io
Optimizely Edge Decider API
AE Profile APIs.io
Optimizely Data Platform (ODP) API v3
AE Profile APIs.io
Optimizely Graph API
AE Profile APIs.io
Optimizely Content Marketing Platform (CMP) API v3
AE Profile APIs.io
Optimizely Campaign REST API
AE Profile APIs.io
Optimizely Configured Commerce API
AE Profile APIs.io
Optimizely CMS Content Delivery API v3.0
AE Profile APIs.io
#Event#Analytics
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API Details
ID
optimizely:event-api
Base URL
https://logx.optimizely.com/v1
Docs
https://docs.developers.optimizely.com/experimentation-data/reference
Provider
Optimizely
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