Powerful .NET Server-Side Web API

ComponentOne Web API is a set of services that allow you to quickly extend the functionality of your apps with server-side Web APIs. With a variety of APIs for document formats, imaging, reporting, and cloud services, you can retrieve and leverage data from your server-hosted native mobile and web apps.

Full support for ASP.NET MVC and ASP.NET Core Web API

Includes 8 web service APIs including barcode, Excel, and PDF.

APIs are easily developed and extended through Visual Studio templates.

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Why Choose ComponentOne for Web API?

.NET Web API components provide an interface that makes it easy to define interactions between multiple applications.
ComponentOne provides a set of high-performing, .NET Web API components in the form of Visual Studio project templates including reporting, imaging, exporting, and more.

Extend Web Apps With Server-Side Power

Our powerful server-side .NET Web API allows you to get and write data to your server-hosted native mobile and web apps.

Export Anything, Anywhere

Export any datagrid or visualization to the format of your choice. Export charts to images, datagrids to Excel, and more.

Save Time Creating Web APIs

Simply configure your Web API with our Visual Studio project templates and deploy to a web server. That's it!

Effortlessly Create Services Inside Visual Studio

ComponentOne Web API Edition puts the control in your hands with out-of-the-box templates in Visual Studio. It's as easy as 1-2-3.

Step 1: Create a Web API project.

Quickly create your Web API project with our Visual Studio ASP.NET 4.0 and ASP.NET Core project templates. They work for both hosted and self-hosted Web APIs.

Step 2: Configure the project.

With the project wizard, you can choose to include only the services you need for your app.


Note: APIs are also available as NuGet packages through nuget.org.

Step 3: Host the Web API.

Deploy your Web API application to IIS or any server (or just run it if it's self-hosted) and that's it! Now you can consume the Web API from your client apps to export, import, upload, and much more.

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Ask anything!

Share your concerns and questions about ComponentOne with MESCIUS's expert team. We empathize with your concerns and are here to help.

Online Consultation

Explore All Web APIs

Image service

Export charts and visualizations to PNG, JPG, BMP, TIFF, and GIFF formats.


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Barcode Service

Generate scannable barcodes on the fly from text and save them to an image format.


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Reporting Service

Create RESTful HTTP services for loading and caching FlexReports and SSRS reports.


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Cloud Service

Perform CRUD operations over Azure, AWS, DropBox, Google Drive, and OneDrive services.


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PDF Document Service

Build RESTful HTTP services for viewing, loading, and caching PDF documents.


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Excel Services

Import, export, generate and merge Excel files from JSON, XML, and collections.


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Information Tracking Service

Generate scannable barcodes on the fly from text and save them to an image format.


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Data Engine Service

Analyze data from multiple data sources, including SQL Server and structured files from file systems.


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Web API Demo

Explore web demos and public APIs to learn how to create and merge Excel files, generate barcodes, perform CRUD operations on cloud storage, manage website visitor information, and more.

Run demo Developer Documentation

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ComponentOne 2025 v2
New features

.NET 10 & Visual Studio 2026 Support

  • Safe migration is available with the 2025 v2 package.
  • .NET 10 support includes WinForms, WPF, ASP.NET Core, Blazor, WinUI, and MAUI.

New FlexDiagram for WinForms (Beta)

  • Visualize flat and hierarchical data with minimal code.
  • Supports detailed customization of nodes, connectors, and flow directions, as well as loading MermaidJS syntax. Compatible with .NET Framework 4.6.2+ and supports .NET 10 Dark Mode.

WinForms FlexGrid Scrollbar Annotations

  • Easily highlight important rows, display error indicators, and quickly locate key data points directly on the scrollbar for faster navigation.

WPF ExpressionEditor (.NET 10)

  • Extends the existing WinForms-based Expression Editor to the .NET 10 WPF environment.
  • Enables users to easily create and edit custom logical expressions and calculation formulas.

FlexChart 2D Contour Surface Charts for WPF, Blazor, WinUI, and MAUI

  • Supports area and line contour plots with rich gradient color scales.
  • Helps users intuitively analyze complex data patterns.

New FlexViewer for MAUI (Beta)

  • View FlexReport, SSRS, and PDF documents directly within .NET MAUI applications.

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ComponentOne System Requirements

Check the system requirements for each platform.

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ComponentOne Enterprise

Expand your development reach across all .NET platforms with ComponentOne Enterprise.

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