# flagsmith

**Canonical:** https://apis.io/providers/flagsmith/  
**APIs profiled:** 9

Flagsmith is an open-source feature flag and remote configuration platform that helps developers manage feature flags across web, mobile, and server-side applications.

## Kin Score — 32.5 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 32.5).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 74.8 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 37.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (9)

- **Flagsmith Flags API** — The Flagsmith Flags API is the public-facing REST API that client-side and server-side SDKs use to retrieve feature flag values and remote configuration for environments and use...
- **flagsmith Environments API** — Manage environments within a project. Environments represent deployment stages such as development, staging, and production.
- **flagsmith Features API** — Manage feature flags within a project. Features can be toggled on or off and can have remote configuration values.
- **flagsmith Identities API** — Manage user identities within an environment. Identities represent individual users and their associated traits.
- **flagsmith Organisations API** — Manage organisations within Flagsmith. Organisations are the top-level container for projects, users, and billing.
- **flagsmith Projects API** — Manage projects within an organisation. Projects contain environments and feature flags.
- **flagsmith Segments API** — Manage segments within a project. Segments define groups of users based on traits and rules for targeted flag delivery.
- **flagsmith Users API** — Manage organisation users and their permissions within Flagsmith.
- **flagsmith Webhooks API** — Configure webhooks for environments and organisations to receive notifications about flag changes and audit log events.

## Agentic access (1)

- **Flagsmith Agentic Access** — 35 operations · 17 acting

## Security (2)

- **Flagsmith Authentication** — apiKey · 2 schemes
- **Flagsmith Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Flagsmith Plans Pricing**

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/flagsmith/). Scores are computed from the provider's own public artifacts under a published rubric.