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Fondant

Fondant is a Docker-based suite for developing and testing applications on the Casper blockchain. Its web interface displays accounts, blocks, deploys, events and logs, while backend endpoints proxy requests to supported nodes' RPC ports.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Fondant — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Fondant when developing or testing Casper applications and when a local Docker-based interface for inspecting chain activity and accessing supported node RPC endpoints is useful.

Who it is for

  • Developers building or testing applications for Casper.
  • Developers who need to inspect accounts and chain activity in a local Docker environment.
  • Casper users who want to query supported node RPC endpoints with Casper client commands.

Documented uses

  • Build Fondant's Docker images from its repository.
  • Review accounts and chronologically ordered blocks in the interface.
  • Inspect deploy, event and log details.
  • Query a supported node's status or retrieve block information through an RPC proxy endpoint.
Before you choose

Requirements & limits

The README's setup requires Docker and directs users to clone the repository and build its images with Docker Compose.

  • The documented environment supports nodes 1 through 5; configurable node counts were described as a future plan.
  • Fondant exposes RPC proxy endpoints, with the README showing a node-specific local endpoint format.
  • The state-root-hash query is applicable after the first block emission.
  • The public repository specifies the Apache-2.0 license.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up Fondant's Docker environment

Build the Fondant images from the repository using Docker Compose.

Before you start

  • Docker

Steps

  1. Clone the repository.

  2. Change into the fondant-app directory.

  3. Run docker-compose up --build to build the images.

Expected outcome

The documented Docker Compose command builds Fondant's images.

Guide limitations

  • The guide covers image building only; it does not document a complete application workflow.
  • The README describes support for nodes 1 through 5.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
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Sources checked
14 October 2026
Original website title
defdone/fondant-app · Official homepage title · retained in its source language
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