Feature toggles per environment
Boolean, string and number flags scoped to each environment. Flip a flag in production without touching staging.
Edge-native feature flags
Ship features without fear. Release when you're ready.
GreenFlags is a feature flag management platform that decouples deploy from release. Roll out gradually, kill features instantly, and run A/B tests — all evaluated at the edge in under 50ms.
import { GreenFlags } from "@greenflags/client";
const flags = new GreenFlags({
token: process.env.GREENFLAGS_TOKEN
});
// Evaluated at the edge, near your users
if (await flags.isEnabled("new-checkout")) {
renderNewCheckout();
}
Built for progressive delivery
Powered by a global edge network
Trusted by teams doing trunk-based development
Features
Everything you need for feature flag management
From feature toggles to release management: one platform to control every rollout across development, staging and production.
Instant kill switch
Something broke? Turn the feature off in one click. Changes propagate globally in seconds — no rollback, no redeploy.
Edge-native evaluation
Flags are evaluated on a global edge network, close to your users. Sub-50ms responses anywhere in the world.
Scoped API tokens & quotas
Environment-scoped tokens with monthly usage quotas. Revoke instantly. Production credentials never leak into dev.
Full audit log
Every flag change, token creation and permission update is recorded. Know who changed what, when, and where.
Team management
Invite your team with role-based permissions. Sensitive environments get visual warnings and confirmation gates.
How it works
From zero to progressive delivery in minutes
Three steps between you and safer releases.
-
Create your flags
Define feature flags in the dashboard and set independent values per environment — dev, staging and production.
-
Generate a token
Issue an environment-scoped API token with its own usage quota. Shown once, hashed at rest, revocable anytime.
-
Evaluate anywhere
Read flags with
@greenflags/client, the REST API, or let AI agents manage them through the MCP server.
Developer experience
A typed SDK developers actually enjoy
Lightweight client, typed responses, zero config beyond a token. Works in Node.js, serverless and the browser.
- TypeScript-first — full type safety on every flag read.
- SDKs for every stack — JavaScript, React, Vue, Flutter, Python, Go and PHP. See the full list.
- REST API with OpenAPI spec — integrate from any language.
- MCP server included — manage flags from AI agents and assistants.
- Built-in quotas — per-token monthly limits, enforced at the edge.
# Install the client
npm install @greenflags/client
# Read your flags
curl https://app.greenflags.dev/v1/flags \
-H "Authorization: Bearer $GREENFLAGS_TOKEN"
Use cases
One platform, every release strategy
Feature flags power the release management techniques modern teams rely on.
Canary releases
Set a percentage rollout and enable a feature for 5%, 30% or 50% of your users — deterministic per user, so raising the percentage only ever adds people. Watch your metrics, then roll out to everyone.
A/B testing
Split users across weighted variants of the same flag — 30% see "blue", 70% see "green" — and measure which one wins before committing. Same user, same variant, every time.
Trunk-based development
Merge to main daily behind feature toggles. No long-lived branches, no merge hell, no half-finished features leaking.
Instant rollback
Turn off a broken feature in seconds without a redeploy. Your incident response just got a kill switch.
Pricing
Simple pricing: pay for reads, nothing else
All prices are in USD. No seats, no tiers, no locked features. Every dollar buys 375,000 flag reads per month — you choose the amount and how to pay it.
USD $2750,000 reads / mo
USD $41,500,000 reads / mo
USD $62,250,000 reads / mo
USD $83,000,000 reads / mo
USD $103,750,000 reads / mo
USD — You pick375,000 reads per dollar
Monthly subscription
Pick any amount and your reads renew automatically every month. Change it or cancel anytime from the dashboard.
- Renews automatically each month
- Cancel anytime, no lock-in
- Adjust the amount whenever you need
One-time payment
Pay once and get the same reads per dollar for one month. No subscription, no recurring charge — great for trying it out or one-off campaigns.
- No recurring charge, ever
- Reads valid for one month
- Same rate as the subscription
A read is one request to the flags API. Official SDKs fetch your whole environment in a single read and cache it locally — cached flag checks are free, so a few dollars go a very long way.
Start now
Creating your account is free — no credit card required.
FAQ
Frequently asked questions
What are feature flags?
Feature flags (also called feature toggles) let you turn functionality on or off at runtime without deploying new code. They decouple deployment from release, enabling progressive delivery, canary releases, A/B testing and instant kill switches.
How fast is flag evaluation in GreenFlags?
GreenFlags runs on a global edge network, so flag evaluation happens close to your users with sub-50ms latency worldwide — no round trip to a central server.
Does GreenFlags support multiple environments?
Yes. Every flag is scoped per environment — development, staging and production — with independent values, environment-scoped API tokens and extra safeguards for sensitive environments.
How do I integrate GreenFlags into my app?
Install the @greenflags/client SDK, create an environment-scoped API token in the dashboard, and read your flags through a typed client. A REST API and an MCP server for AI agents are also available.
How much does GreenFlags cost?
You only pay for flag reads: every $1 USD buys 375,000 reads per month, with recommended amounts starting at $2. Choose a monthly subscription that renews automatically (cancel anytime) or a one-time payment that lasts one month with no recurring charge. Creating an account is free — no credit card required.
Is GreenFlags a LaunchDarkly alternative?
GreenFlags is a lightweight feature flag management alternative focused on speed and simplicity: edge-native evaluation, per-environment tokens with quotas, audit logs and team management without the enterprise overhead.
Start shipping behind flags today
Create your first feature flag in under a minute. Free to start, no credit card required.