# Unleash

**Canonical:** https://apis.io/providers/unleash/  
**Website:** https://www.getunleash.io  
**APIs profiled:** 36

Unleash is the open-source feature management platform enabling progressive delivery, A/B testing, and canary releases through feature flags (feature toggles). Teams use Unleash to decouple code deployments from feature releases, control rollouts by user segment, run experiments with variants, and maintain kill switches for rapid incident response. Available as open-source (self-hosted) and as Unleash Cloud (managed).

## Kin Score — 41.5 / 100 (developing)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 41.5).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 62.0 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 23.7 |
| Access Clarity | 23.7 |

## Agent readiness — 24.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | verified |
| 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 (36)

- **Unleash Client API** — API endpoint consumed by backend Unleash SDKs to fetch complete feature flag configurations including all activation strategies. Supports server-side flag evaluation with zero a...
- **Unleash Addons API** — Create, update, and delete [Unleash addons](https://docs.getunleash.io/addons).
- **Unleash Admin UI API** — Configuration for the Unleash Admin UI. These endpoints should not be relied upon and can change at any point without prior notice.
- **Unleash API tokens API** — Create, update, and delete [Unleash API tokens](https://docs.getunleash.io/concepts/api-tokens-and-client-keys).
- **Unleash Archive API** — Revive or permanently delete [archived feature flags](https://docs.getunleash.io/advanced/archived_toggles).
- **Unleash Auth API** — Manage logins, passwords, etc.
- **Unleash Banners API** — Create, update, flag, and delete [banners](https://docs.getunleash.io/concepts/banners).
- **Unleash Change Requests API** — API for managing [change requests](https://docs.getunleash.io/concepts/change-requests).
- **Unleash Context API** — Create, update, and delete [context fields](https://docs.getunleash.io/concepts/unleash-context) that Unleash is aware of.
- **Unleash Dependencies API** — Manage feature dependencies.
- **Unleash Environments API** — Create, update, delete, enable or disable [environments](https://docs.getunleash.io/concepts/environments) for this Unleash instance.
- **Unleash Events API** — Read events from this Unleash instance.
- **Unleash Feature Types API** — Manage [feature flag types](https://docs.getunleash.io/concepts/feature-flags#feature-flag-types).
- **Unleash Features API** — Create, update, and delete [feature flags](https://docs.getunleash.io/concepts/feature-flags).
- **Unleash Frontend API API** — The [Frontend API](https://docs.getunleash.io/concepts/front-end-api) is used for connecting client-side (frontend) applications to Unleash.
- **Unleash Import/Export API** — [Import and export](https://docs.getunleash.io/concepts/import-export) the state of your Unleash instance.
- **Unleash Instance Admin API** — Instance admin endpoints used to manage the Unleash instance itself.
- **Unleash Maintenance API** — Enable/disable the maintenance mode of Unleash.
- **Unleash Metrics API** — Register, read, or delete metrics recorded by Unleash.
- **Unleash Notifications API** — API for managing [notifications](https://docs.getunleash.io/concepts/notifications).
- **Unleash Operational API** — Endpoints related to the operational status of this Unleash instance.
- **Unleash Personal access tokens API** — Create, update, and delete [Personal access tokens](https://docs.getunleash.io/concepts/api-tokens-and-client-keys#personal-access-tokens).
- **Unleash Playground API** — Evaluate an Unleash context against your feature flags.
- **Unleash Projects API** — Create, update, and delete [Unleash projects](https://docs.getunleash.io/concepts/projects).
- **Unleash Public signup tokens API** — Create, update, and delete [Unleash Public Signup tokens](https://docs.getunleash.io/concepts/public-signup-tokens).
- **Unleash Release Templates API** — API for managing [release templates](https://docs.getunleash.io/concepts/release-templates).
- **Unleash Search API** — Search for features.
- **Unleash Segments API** — Create, update, delete, and manage [segments](https://docs.getunleash.io/concepts/segments).
- **Unleash Service Accounts API** — Endpoints for managing [Service Accounts](https://docs.getunleash.io/concepts/service-accounts), which enable programmatic access to the Unleash API.
- **Unleash Strategies API** — Create, update, delete, manage [custom strategies](https://docs.getunleash.io/concepts/activation-strategies#custom-strategies).
- **Unleash Tags API** — Create, update, and delete [tags and tag types](https://docs.getunleash.io/concepts/feature-flags#tags).
- **Unleash Telemetry API** — API for information about telemetry collection
- **Unleash Unknown Flags API** — Endpoints related to unknown flags.
- **Unleash Unleash Edge API** — Endpoints related to [Unleash Edge](https://docs.getunleash.io/unleash-edge).
- **Unleash Unstable API** — Experimental endpoints that may change or disappear at any time.
- **Unleash Users API** — Manage users and passwords.

## Agentic access (1)

- **Unleash Agentic Access** — 352 operations · 210 acting · 9 human-in-the-loop

## Security (2)

- **Unleash Authentication** — apiKey/http · 2 schemes
- **Unleash Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Unleash Plans Pricing**

## Tags

Feature Flags, Feature Management, Progressive Delivery, A/B Testing, Open-Source, Developer Tools

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