Unleash
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).
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Unleash the way a machine reads it — 53 machine-readable artifacts across 36 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Unleash scores 55.9/100 (developing), with a separate agent-readiness read of 48/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Unleash
Each block below is one kind of artifact we hold for Unleash. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 36
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
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.
Scroll within the panel for all 36 ·
Open Collections 3
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Unleash Admin API
OPEN COLLECTIONUnleash Client API
OPEN COLLECTIONUnleash Frontend API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Unleash Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Unleash Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Unleash Context
JSON-LDSpectral Rules 2
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Unleash API Rules
SPECTRALUnleash API Rules
SPECTRALJSON Schema 1
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Unleash Feature Flag
JSON SCHEMAJSON Structure 1
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Unleash Feature Flag Structure
JSON STRUCTUREExamples 3
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Unleash — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/unleash · machine-readable index on apis.io