Pricing & Credits#

Certain API methods are monetized based on their usage, whether for local or remote operations. When you start working with the Dlubal API, an API Session is created, during which all monetized API Requests are tracked and charged accordingly.

You can view an overview of your API sessions and related API requests in Extranet > API & Cloud.

API Methods with Costs#

Different methods consume a varying number of Credits, depending on their functionality. Typically, credits are charged only for API calls that involve calculations or computations (e.g., FEM analysis, member design checks, wind load calculations). Below is a list of monetized functions and their associated credit Cost Type, categorized by Model Size.

Note

Model Size is calculated as the total number of the following model objects: Nodes, Members, Surfaces, Solids, Load Cases, Load Combinations, and Result Combinations.

On-Premises#

API Method

Billing Type | Cost Type

≤100

≤500

≤2000

≤10000

>10000

save_model()

Per Request

1

1

1

1

1

calculate_all()

RFEM/Add-on Solver

1

2

3

4

5

Used Credits Evaluation#

Two Billing Types are used for credit evaluation:

  1. Per Request: Credits are charged just per request with fixed cost.

  2. Main/Add-on Solver: Credits are calculated based on the model size and number of add-ons involved in the calculation.

    Used Credits = Total Solver Runs * Credits per Solver Run
where:
Total Solver Runs = Main Solver + Σ Addon Solver
Credits per Solver Run = based on model size

Insufficient Credits#

Before processing any monetized API request, the system checks whether a sufficient amount of credits is available in the company profile. The current threshold is > 50 credits.

If this condition is not met:

  • The API request is not executed.

  • The request is logged in the API session with an error response.

  • An error message is displayed in your code.

Important

Credits for the API Service can be purchased on the Dlubal website and are shared across all API keys linked to your Company account. You can view your available and consumed credits in Extranet > Company.