#5 in Build & DeploymentUpdated 2026-08

Flagsmith

by Flagsmith · Open source feature flag and remote config service

75.2 — BenchRank score out of 100

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Overview

Flagsmith is a feature flag and remote config service. Developers wrap a section of code in a flag and toggle or configure it from Flagsmith per environment, individual user, segment or percentage of users, without a new deployment. It can be used as Flagsmith's hosted cloud, a managed private cloud, or self-hosted using Helm for Kubernetes or an OpenShift operator.

Best for: Development teams wanting feature flags they can run as SaaS, private cloud or self-hosted
Pricing: Free plan for 50,000 requests/month and 1 team member, then Start-Up at $45/month and Scale-Up at $300/month, with Enterprise by contact and Start-Up overages at $7 per 100k requests.
Runs on: WebSelf-hosted

Strengths and trade-offs

Strengths

Open source, with SaaS, private cloud or on-prem deployment
SDKs for React, iOS, Android, Python, Go, Ruby, .NET, PHP, Rust
Free plan includes unlimited flags, environments and segments
Segments, percentage rollouts and multivariate tests included

Trade-offs

Free plan is 1 team member and 50,000 requests per month
SAML/SSO, roles and audit logs need the $300/mo Scale-Up plan
Extra Scale-Up seats cost $60 per member per month, capped at 20
LDAP + SCIM and data-driven releases are marked as not yet available

Pricing

Published plans from Flagsmith’s own pricing page, in USD. Usage charges and add-ons may apply on top.

Flagsmith pricing tiers, monthly rates in USD
Plan	Monthly	Includes
Free	Freeper organisation	Up to 50,000 requests per month 1 team member, 1 project Unlimited flags, environments, identities and segments API access
Start-Up	$45per month	Up to 1,000,000 requests per month, 3 team members Unlimited projects, scheduled flags, 2FA A/B and multivariate testing, third-party integrations Email technical support; 14-day free trial
Scale-Up	$300per month	5,000,000+ requests per month 5 team members included, up to 20 at $60/member/month SAML/SSO, roles, permissions, change requests, audit logs Priority email and chat support; 14-day free trial
Enterprise	Contact sales	20+ team members, 5,000,000+ requests per month Hosting from cloud to air-gapped instances Priority real-time chat support, optional Slack Onboarding, training and an enterprise SLA

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 92 out of 100
API quality: 20 out of 100
Documentation: 80 out of 100
Agent friendliness: 97 out of 100
Pricing transparency: 100 out of 100
Changelog: 100 out of 100
Marketing site structure: 70 out of 100
Operational trust: 55 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 85 out of 100
Maintenance: 100 out of 100

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