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Optimizely

Optimizely Rules API

APIs to interact with Rules

Documentation Provider Profile APIs.io OpenAPI GitHub

Optimizely Rules API is one of 420 APIs that Optimizely publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Rules. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 4 operations across 4 paths, and defines 12 schemas. It is described by OpenAPI 3.2.0, at version 0.3.7.

Requests are made against a single base URL, https://api.optimizely.com/flags/v1/.

4 operations 4 paths 12 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.3.7
Base URL
https://exp.mcp.opal.optimizely.com/mcp
Authentication
HTTP Bearer, OAuth 2.0, HTTP Bearer
Resource Areas
1

Authentication & Security 3

Optimizely Rules API declares 3 security schemes for authenticating requests. It accepts HTTP bearer tokens (BearerAuth). It supports OAuth 2.0 (OAuth2) using the authorizationCode flow, exposing 1 scope. It accepts HTTP bearer tokens (apiKey). By default, every request must be authenticated.

  • BearerAuth — To get a personal token, see https://docs.developers.optimizely.com/web/docs/personal-token
  • OAuth2 — Write applications that authenticate with the REST API via OAuth 2.0.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Rules 4

APIs to interact with Rules

GET
/projects/{project_id}/environments/{environment_key}/rule/{rule_key}/holdouts
Fetch holdouts for a specific rulekey
fetch_holdouts_by_rule_key 3 params → 200400401403404
GET
/projects/{project_id}/flags/{flag_key}/environments/{environment_key}/rules/{rule_key}
Fetch the Rule for a Ruleset in an Environment
fetch_rule 4 params → 200400401403404
GET
/projects/{project_id}/rules
List Rules
list_all_rules_in_project 8 params → 200400401403
GET
/projects/{project_id}/rules/{experiment_id}
Fetch a Rule for a specific experimentid
fetch_rule_by_experiment_id 2 params → 200400401403404

Schemas 12

The contract defines 12 schemas that model the data the API accepts and returns. The most detailed are Rule (34 properties), Holdout (22 properties), Metric (13 properties), RuleVariation (6 properties). Each schema is shown below with its type and property counts.

Rules
object
6 properties 6 required
Holdout
object
Represents a holdout experiment that reserves a portion of traffic to measure the impact of feature flags and experiments. Holdouts help establish control grou…
22 properties 3 required
SubMetric
object
6 properties
HoldoutsList
array
A simple array of holdout objects without pagination metadata. Used by endpoints that return a basic list of holdouts, such as when fetching holdouts associate…
Metric
object
13 properties 2 required
RuleVariation
object
6 properties 1 required
Rule
object
Configuration which contains audiences, metrics and variations.
34 properties 3 required
RuleAllowList
object
2 properties 2 required
UrlValue
string
A single url.
ProblemDetail
object
https://tools.ietf.org/html/rfc7807section-3.1
5 properties 4 required
EventPropertyCondition
object
4 properties 4 required
RuleGroupRule
object
3 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

optimizely-rules-api-openapi.yml Raw ↑

Other APIs Optimizely publishes across the network.

Optimizely Remote MCP Server — Experimentation
AE Profile APIs.io
Optimizely Assets API
AE Profile APIs.io
Optimizely Attributes API
AE Profile APIs.io
Optimizely Audiences API
AE Profile APIs.io
Optimizely Campaigns API
AE Profile APIs.io
Optimizely Catalog Entries API
AE Profile APIs.io
Optimizely Catalog Entry Relations API
AE Profile APIs.io
Optimizely Catalog Nodes API
AE Profile APIs.io
Optimizely Catalogs API
AE Profile APIs.io
Optimizely Content API
AE Profile APIs.io
Optimizely Content Types API
AE Profile APIs.io
Optimizely Customers API
AE Profile APIs.io
#Rules
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API Details
ID
optimizely:optimizely-rules-api
Base URL
https://exp.mcp.opal.optimizely.com/mcp
Docs
https://support.optimizely.com/hc/en-us/articles/45320607594893-Optimizely-Experimentation-MCP-server-overview
Provider
Optimizely
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