Feature

Feature Flags

Toggle behavior without redeploying.

8 providers 41 APIs 6 declared variants

Capabilities can be enabled per environment, tenant, or cohort at runtime. Lets integrators ship dark, roll out gradually, and kill a bad change without a release.

8 API providers on the APIs.io network offer feature flags. The highest-rated are Amazon Data Lifecycle Manager, Amazon Firewall Manager, Harness, PostHog, WunderGraph.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 3 Solid coverage with minor gaps
Amazon Data Lifecycle Manager Amazon Data Lifecycle Manager provides an automated way to manage the lifecycle of your AWS resources. Usin... 1 API 66.0 Amazon Firewall Manager AWS Firewall Manager is a security management service that allows you to centrally configure and manage fir... 1 API 63.2 Harness Harness is an AI-powered software delivery platform that automates and accelerates the entire software deve... 13 APIs 61.6
Developing 4 Usable, with meaningful gaps to close
PostHog PostHog is an open source product analytics platform that provides event tracking, session recording, featu... 9 APIs 59.0 WunderGraph Full Lifecycle API Management for (Federated) GraphQL. Schema Registry, composition checks, analytics, metr... 1 API 57.4 Instabug (Luciq) Instabug — now rebranded as Luciq — is an agentic mobile observability platform covering bug reporting, cra... 8 APIs 57.2 AB Tasty At AB Tasty, we are your partner for pushing great ideas even further through optimization. We achieve this... 3 APIs 55.6
Thin 1 Limited public surface area
bugsnag Bugsnag is an application stability monitoring platform that helps software teams detect, diagnose, and fix... 5 APIs 40.0

What Providers Actually Declared

This feature is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Feature Flag ManagementFeature FlagsFeature Flags + Experiments: 1M requests free, tiered down to $0.00001Feature flags & experiments (Preferred+)Prevention pillar: real-time alerts, release management, feature flags, PR review by Release AgentTag-Based Targeting

Scroll for all 6