generated: '2026-09-17'
method: searched
source: https://docs.flagsmith.com/integrating-with-flagsmith/flagsmith-api-overview/management-api/,
  https://api.flagsmith.com/api/v1/docs/ (HTTP 200, 2026-09-17), https://flagsmith.com/demo,
  https://flagsmith.com/pricing
has_test_mode: false
description: >-
  Flagsmith publishes no test-mode sandbox in the payments sense — there are no test-vs-live key
  prefixes, no test fixtures, no time simulation, and no separate sandbox host. That is a reasonable
  design for a feature-flag platform: the product's own primitive IS the safe place to try things,
  because an environment (Development, Staging, Production) is free and unlimited on every plan
  including Free, and flags evaluated in a dev environment cannot reach production traffic.
surfaces:
- name: Swagger API Explorer
  type: interactive-console
  url: https://api.flagsmith.com/api/v1/docs/
  http_status: 200
  auth_required: true
  note: >-
    A live, first-party Swagger UI over the full 615-operation Management API, served from the API
    host itself. Calls go to production with your own key — it is an explorer, not a sandbox.
- name: OpenAPI download
  type: contract
  url: https://api.flagsmith.com/api/v1/swagger.json
  alt: https://api.flagsmith.com/api/v1/swagger.yaml
  http_status: 200
  auth_required: false
  note: Anonymous. The whole contract is readable without an account.
- name: Interactive demo
  type: guided-demo
  url: https://flagsmith.com/demo
  http_status: 200
  auth_required: false
- name: Free plan
  type: free-tier
  url: https://flagsmith.com/pricing
  note: >-
    50,000 requests/month, unlimited flags, environments, identities and segments, with API access
    included — the practical substitute for a sandbox. Self-serve signup, no card.
- name: Self-hosted local stack
  type: local
  url: https://github.com/Flagsmith/self-hosted
  note: >-
    The provider publishes a docker-compose project that stands up an entire Flagsmith environment
    locally. For anyone who needs a throwaway target for destructive API testing, this is it, and it
    is the closest thing to a true sandbox Flagsmith offers.
test_values:
  published: false
  note: No published test keys, test identities or fixture data. Nothing was invented to fill this.