Split

Split, now part of Harness Feature Management and Experimentation, is a feature flag and experimentation platform that enables teams to safely release features with controlled rollouts and measure their impact. Their developer platform provides REST APIs for managing feature flags, environments, segments, and workspaces, along with SDKs for evaluating feature flags across multiple languages and platforms.

8 APIs 16 Features

ExperimentationFeature FlagsFeature ManagementRolloutsSDKs

APIs

Split Admin API

The Split Admin API is a REST API that enables programmatic management of workspaces (projects), environments, traffic types, attributes, users, groups, API keys, and change req...

Split Feature Flag API

The Split Feature Flag API provides endpoints for creating, editing, and deleting feature flags (splits) and their definitions within specific environments. Developers can use t...

Split Evaluator API

The Split Evaluator is an HTTP service that wraps Split SDKs to provide feature flag evaluation via a REST API. It enables applications that cannot directly embed an SDK to requ...

Split JavaScript SDK

The Split JavaScript SDK provides client-side integration for feature flag evaluation in browser-based applications. It handles real-time feature flag synchronization, treatment...

Split Node.js SDK

The Split Node.js SDK enables server-side feature flag evaluation for Node.js applications with local evaluation, automatic synchronization, event tracking, and impression logging.

Split Java SDK

The Split Java SDK provides server-side feature flag evaluation for Java and JVM-based applications with local treatment evaluation and streaming updates.

Split Python SDK

The Split Python SDK enables server-side feature flag evaluation for Python applications, suitable for Django, Flask, and other frameworks.

Split React SDK

The Split React SDK provides React-specific components and hooks for integrating feature flags including a SplitProvider context, useTreatments hooks, and conditional rendering ...

Collections

Split Admin API

OPEN

Split Evaluator API

OPEN

Split Feature Flag API

OPEN

Pricing Plans

Split Plans Pricing

3 plans

PLANS

Rate Limits

Split Rate Limits

3 limits

RATE LIMITS

FinOps

Split Finops

FINOPS

Features

Individual free for solo devs, up to 10 MAU

Team: per-MAU pricing (custom)

Enterprise: Statistical Engine, Causal Impact, SCIM/SSO

Now Harness Feature Management & Experimentation (FME)

Server-side and client-side SDKs

Targeting rules with attributes

Experimentation with frequentist and Bayesian inference

Admin API: 80 req/min/org

Datafile-based SDK distribution (CDN-backed)

Events API: 100 events per request

OAuth 2.0 + API keys

Webhooks for split changes and rollouts

Audit logs (Enterprise)

Streaming changes (server-sent events)

Causal Impact analysis for treatment effect

Integration with Datadog, NewRelic, Segment for guardrails

Semantic Vocabularies

Split Context

0 classes · 11 properties

JSON-LD

API Governance Rules

Split API Rules

11 rules · 4 errors 5 warnings 2 info

SPECTRAL

JSON Structure

Split Feature Flag Definition Structure

0 properties

JSON STRUCTURE

Split Feature Flag Structure

0 properties

JSON STRUCTURE

Split Structure

0 properties

JSON STRUCTURE

Example Payloads

Split Get Treatment Example

2 fields

EXAMPLE

Split List Feature Flags Example

2 fields

EXAMPLE

Split List Workspaces Example

2 fields

EXAMPLE

Resources

GitHubOrganization

GitHubOrganization

Documentation

PrivacyPolicy

TermsOfService

JSONStructure

JSONStructure

SpectralRules

Capabilities

Sources

opencollection: 1.0.0
info:
  name: Split Feature Flag API
  version: '2.0'
request:
  auth:
    type: bearer
    token: '{{bearerToken}}'
items:
- info:
    name: Feature Flags
    type: folder
  items:
  - info:
      name: List feature flags
      type: http
    http:
      method: GET
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: limit
        value: ''
        type: query
        description: Maximum number of results to return per page
      - name: offset
        value: ''
        type: query
        description: Number of results to skip for pagination
      - name: tags
        value: ''
        type: query
        description: Filter feature flags by tag names (comma-separated)
    docs: Retrieves all feature flags within the specified workspace. Returns paginated results including flag name, description,
      traffic type, creation time, and tags.
  - info:
      name: Create feature flag
      type: http
    http:
      method: POST
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/trafficTypes/:trafficTypeId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: trafficTypeId
        value: ''
        type: path
        description: The identifier or name of the traffic type for the feature flag
      body:
        type: json
        data: '{}'
    docs: Creates a new feature flag within the specified workspace and traffic type. The flag is created with default treatments
      of on and off. After creation, a definition must be created in each environment where the flag should be active.
  - info:
      name: Get feature flag
      type: http
    http:
      method: GET
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
    docs: Retrieves a single feature flag by its name within the specified workspace. Returns the flag metadata including
      name, description, traffic type, creation time, and tags.
  - info:
      name: Update feature flag
      type: http
    http:
      method: PUT
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      body:
        type: json
        data: '{}'
    docs: Updates the metadata of an existing feature flag, such as its description or tags.
  - info:
      name: Delete feature flag
      type: http
    http:
      method: DELETE
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
    docs: Deletes a feature flag from the specified workspace. The flag must first have all its environment definitions removed
      before it can be deleted.
- info:
    name: Feature Flag Definitions
    type: folder
  items:
  - info:
      name: Get feature flag definition in environment
      type: http
    http:
      method: GET
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
    docs: Retrieves the full definition of a feature flag in a specific environment, including treatments, targeting rules,
      default treatment, percentage rollout configuration, and kill status.
  - info:
      name: Create feature flag definition in environment
      type: http
    http:
      method: POST
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
      body:
        type: json
        data: '{}'
    docs: Creates a new definition for an existing feature flag in the specified environment. This activates the flag in that
      environment with the provided targeting rules and treatments.
  - info:
      name: Update feature flag definition in environment
      type: http
    http:
      method: PATCH
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
      body:
        type: json
        data: '{}'
    docs: Partially updates the definition of a feature flag in a specific environment. Supports modifying targeting rules,
      percentage rollouts, default treatment, and kill status.
  - info:
      name: Delete feature flag definition in environment
      type: http
    http:
      method: DELETE
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
    docs: Removes the definition of a feature flag from the specified environment, effectively deactivating the flag in that
      environment.
  - info:
      name: List feature flag definitions in environment
      type: http
    http:
      method: GET
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/environments/:environmentId
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
      - name: limit
        value: ''
        type: query
        description: Maximum number of results to return per page
      - name: offset
        value: ''
        type: query
        description: Number of results to skip for pagination
    docs: Retrieves all feature flag definitions within the specified environment and workspace. Returns the targeting configuration,
      treatments, and status of each flag.
  - info:
      name: Kill feature flag in environment
      type: http
    http:
      method: PUT
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId/kill
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
    docs: Kills a feature flag in the specified environment, forcing all evaluations to return the default treatment. This
      is used as an emergency shut-off mechanism.
  - info:
      name: Restore feature flag in environment
      type: http
    http:
      method: PUT
      url: https://api.split.io/internal/api/v2/splits/ws/:workspaceId/:featureFlagName/environments/:environmentId/restore
      params:
      - name: workspaceId
        value: ''
        type: path
        description: The unique identifier of the workspace
      - name: featureFlagName
        value: ''
        type: path
        description: The name of the feature flag
      - name: environmentId
        value: ''
        type: path
        description: The unique identifier or name of the environment
    docs: Restores a previously killed feature flag in the specified environment, resuming normal treatment evaluation based
      on targeting rules.
bundled: true