generated: '2026-07-21'
method: searched
source: https://redx.com.bd/developer-api/ + live probe of https://sandbox.redx.com.bd/v1.0.0-beta
note: >-
  REDX publishes a dedicated sandbox environment where transactions are simulated
  and do not affect real data. The sandbox base host was verified live (returns
  HTTP 401 on /areas without an access token, same contract as production).
  No published magic test values / fixture credentials were found; none are invented here.
environments:
  - name: sandbox
    base_url: https://sandbox.redx.com.bd/v1.0.0-beta
    purpose: Simulated transactions for integration testing; no impact on real data.
    auth: API-ACCESS-TOKEN header (merchant sandbox token)
    verified: '401 Unauthorized on GET /areas (host live, auth-gated)'
  - name: production
    base_url: https://openapi.redx.com.bd/v1.0.0-beta