# Split

**Canonical:** https://apis.io/providers/split/  
**Website:** https://www.split.io/  
**APIs profiled:** 21

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.

## Kin Score — 42.0 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 42.0).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 62.9 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 38.1 |
| Commercial Clarity | 32.9 |
| Access Clarity | 32.9 |

## Agent readiness — 24.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (21)

- **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 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 ...
- **Split API Keys API** — Create and delete API keys for authenticating with the Split platform, with configurable roles and scopes.
- **Split Attributes API** — Manage attributes used in targeting rules for feature flag definitions.
- **Split Change Requests API** — Manage change requests for controlled approval workflows when modifying feature flag definitions.
- **Split Environments API** — Manage environments within workspaces for deploying and testing feature flags across stages such as staging and production.
- **Split Evaluation API** — Endpoints for evaluating feature flags and retrieving treatment values for given keys and feature flag names.
- **Split Events API** — Endpoints for tracking custom events used in experimentation and metrics measurement.
- **Split Feature Flag Definitions API** — Manage feature flag definitions in specific environments, including targeting rules, treatments, percentage rollouts, and default treatments.
- **Split Feature Flags API** — Create, retrieve, update, and delete feature flags (splits) within workspaces. Feature flags represent the toggles used to control feature rollouts.
- **Split Groups API** — Manage groups for organizing users and assigning permissions.
- **Split Identities API** — Manage identities (keys) within segments.
- **Split Large Segments API** — Manage large segments optimized for high-volume identity lists.
- **Split Segments API** — Manage segments which define reusable groups of identities for targeting.
- **Split Traffic Types API** — Manage traffic types which define the entities (users, accounts, etc.) that feature flags target.
- **Split Users API** — Manage users within the Split account, including inviting new users and updating user roles.
- **Split Workspaces API** — Manage workspaces (projects) which organize feature flags and experiments across business units, product lines, and applications.

## Agentic access (1)

- **Split Agentic Access** — 53 operations · 28 acting · 1 human-in-the-loop

## Security (2)

- **Split Authentication** — http · 1 scheme
- **Split Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Split Plans Pricing**

## Tags

Experimentation, Feature Flags, Feature Management, Rollouts, SDK

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/split/). Scores are computed from the provider's own public artifacts under a published rubric.