# API clients

Ready-to-import collections, generated from this same API reference — so they
never drift from the live API.

## Postman

1. Download the
**Postman collection**
and the environment for your target:
**Demo** ·
**Production**.
2. In Postman: **Import** → drop in both files.
3. Select the environment and set **`clientId`** / **`clientSecret`** to your
API credentials.
4. Run **Authentication → Get access token** once — it stores the token in the
environment and every request inherits collection-level bearer auth. Tokens
last one hour; just re-run the request when it expires.


Path parameters such as `:id` appear as editable fields under the URL bar, and
optional query parameters are pre-filled but disabled — tick the ones you need.

## Insomnia

Insomnia imports OpenAPI directly: **Import** → **File** → choose the
**OpenAPI spec**.
Point the base environment at your target and add the bearer token from the
[authentication flow](/getting-started/authentication).

## Next steps

- Browse the full **[API Reference](/apis/openapi)**.
- Need credentials? Ask your MVMNT contact during onboarding.