LaunchDarkly is the named product and offers a REST API whose postFeatureFlag action creates a new feature flag 111, so it is first. Alternatives that create or configure flags are ConfigCat 616, Cloudflare's flagship_create_flag 414, and PostHog's feature flag tooling 818.
- 1
LaunchDarkly REST APIlaunchdarkly.comverified and signed
Creates a new LaunchDarkly feature flag through its postFeatureFlag action, and the launchdarkly-flag-create action creates and configures flags to fit the existing codebase 11.
official:API · LaunchDarkly REST API+8 community tools built for it
for agents: launchdarkly-flag-create · postFeatureFlag · putFlagSetting
- 2
ConfigCat Public Management APIconfigcat.comverified and signed
Its create-setting action creates a new Feature Flag in a specified Config identified by configId 16.
official:API · ConfigCat Public Management API
for agents: create-setting · update-setting · create-setting
- 3
Cloudflare Flagshipcloudflare.comverified and signed
Its flagship_create_flag action creates a flag, with related actions to update or partially update flags 14.
official:MCP server · @cloudflare/mcp-server-cloudflareCLI · cloudflaredskill · cloudflareskill · durable-objects+272 community tools built for it
for agents: flagship_create_flag · flagship_patch_flag · flagship_update_flag
- 4
PostHogposthog.comverified and signed
Its feature flag tooling adds feature flags to gate new functionality and lists flags in a project 18, but it does not show a create-flag action in the indexed records.
+16 community tools built for it
for agents: instrument-feature-flags · get_feature_flags · create_project
Sources
- 1Runtime Control for AI-Era Software | Feature Flags & AI Agent Control | LaunchDarklylaunchdarkly.com · read 2026-10-29
- 4Cloudflare: Build for the agent eracloudflare.com · read 2026-10-29
- 6ConfigCat - Feature Flag Service for Teamsconfigcat.com · read 2026-10-29
- 8PostHog – Your product’s context layerposthog.com · read 2026-10-29
- 11launchdarkly-flag-create: declares "launchdarkly-flag-create" (the record we read and signed)unfragile.ai · read 2026-10-24
- 14Cloudflare API: declares "flagship_create_flag" (the record we read and signed)unfragile.ai · read 2026-10-24
- 16ConfigCat Public Management API: declares "create-setting" (the record we read and signed)unfragile.ai · read 2026-10-24
- 18instrument-feature-flags: declares "instrument-feature-flags" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
launchdarkly-flag-create · launchdarkly-flag-create verified and signed
Create and configure LaunchDarkly feature flags in a way that fits the existing codebase. Use when the user wants to create a new flag, wrap code in a flag, add a feature toggle, or set up an experiment. Guides exploration of existing patterns before creating.
launchdarkly · @launchdarkly/js-sdk-common verified and signed
launchdarkly · launchdarkly-react-client-sdk verified and signed
launchdarkly · @launchdarkly/react-native-client-sdk verified and signed
· LaunchDarkly Eventsource website read, tools not yet checked
LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.
launchdarkly/find-code-references · LaunchDarkly Code References verified and signed
Find references to feature flags in your code.
· LaunchDarkly Ldcli website read, tools not yet checked
LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.
· LaunchDarkly Code Find Ld Refs website read, tools not yet checked
LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.
· LaunchDarkly Internalsdk website read, tools not yet checked
LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.
· LaunchDarkly Serversdk website read, tools not yet checked
LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.