generated: '2026-08-13'
method: searched
source: >-
  https://developer.mediavalet.com/plans, https://developer.mediavalet.com/getting-started, and
  https://docs.mediavalet.com/api/collections/15676803/TzRUB7XE (Packaged Business Capabilities >
  Asset Picker).
docs: https://developer.mediavalet.com/plans
description: >-
  MediaValet's test environment is an entitlement, not a public sandbox. There is no anonymous
  playground, no test-mode key prefix, and no published fixture or trigger tooling. Two things
  qualify as sandbox surfaces: the Developer Plan (a rate-capped proof-of-concept subscription
  against a real MediaValet library), and the Enterprise Plan's "dedicated testing library" — a
  separate library isolated from production. Both require an existing MediaValet subscription and an
  approved Developer Portal account before any request can be made.
public: false
self_serve: false
anonymous_access: false
modes:
- name: Developer Plan
  url: https://developer.mediavalet.com/plans
  purpose: Proof-of-concept development and integration testing.
  isolation: none — runs against the customer's real MediaValet library.
  quota: >-
    "The Developer Plan comes with a limited amount of daily requests to get you started." The
    numeric daily cap is not published.
  default: true
  note: Every approved developer account starts on this plan by default.
- name: Enterprise Plan — dedicated testing library
  url: https://developer.mediavalet.com/plans
  purpose: >-
    "Gain access to an exclusive sandbox environment, allowing you and your team validate the
    feasibility and functionality of new integrations and solutions without affecting your
    production environment."
  isolation: separate library from production
  quota: '"a generous limit of API calls... a near unlimited number of requests"'
  additional: Full API endpoint suite plus MediaValet secure Webhooks (SkyHOOK).
  default: false
  note: Requested by upgrading from the Developer Plan when call volume is too high.
- name: Asset Picker local development
  url: http://localhost:5174
  purpose: >-
    "You can use the Asset Picker locally at http://localhost:5174 for development and testing. This
    allows you to build and validate your integration before configuring a whitelabeled domain."
  isolation: local only
  note: >-
    Applies to the embeddable Asset Picker component, not the REST API. See
    components/mediavalet-components.yml.
credentials:
  test_key_prefix: null
  live_key_prefix: null
  separate_test_credentials: false
  note: >-
    MediaValet does not distinguish test from live credentials by prefix or by mode flag. The same
    OAuth client_id/client_secret and the same Ocp-Apim-Subscription-Key are used; the plan attached
    to the subscription key is what differs. That means there is no in-band signal to an agent that
    it is operating against a test library rather than production — the only separation is which
    library the credentials point at.
test_data:
  test_values: []
  fixtures: null
  triggers: null
  time_simulation: false
  note: >-
    No published magic identifiers, test files, seeded fixtures, event triggers or time/clock
    simulation. SkyHOOK events can only be produced by performing the real action in a library.
access_path:
- Have an existing MediaValet library (existing customer or partner) — this is a hard prerequisite.
- Register at https://developer.mediavalet.com/signup.
- MediaValet support contacts you for verification, activates the account, and issues client_id and client_secret.
- Subscription keys appear under your Developer Portal profile once the subscription is approved.
- Administrator permissions in the MediaValet account are required to use the API.
gaps:
- No self-serve trial credentials — a prospective integrator with no MediaValet contract cannot call the API at all.
- No numeric daily request cap published for the Developer Plan.
- No test/live credential distinction, so no guardrail against pointing test code at production.
cross_references:
  plans: plans/mediavalet-plans-pricing.yml
  rate_limits: rate-limits/mediavalet-rate-limits.yml
  authentication: authentication/mediavalet-authentication.yml
  components: components/mediavalet-components.yml
checked: '2026-08-13'