Eidolon: Build and deploy agent services

Understand the project

Practical overview

Use Eidolon when developing agent applications as services and when modular components or communication between agent services matter to the design.

Developers building agent-based services.
Teams seeking a shared service and deployment layer for multiple agent applications.

Build an agent service using configurable components.
Deploy agent-based applications behind a built-in HTTP server.
Enable agent services to communicate through defined interfaces and OpenAPI-derived tools.
Replace or customize language-model, retrieval or tool components.

Before you choose

The repository identifies Eidolon as open source and lists an Apache-2.0 license.

The framework packages agents as services and includes an HTTP server.
Agent-to-agent communication is based on defined interfaces, with tools generated from agent-service OpenAPI schemas.
The SDK emphasizes modularity, allowing developers to use existing or custom language-model, retrieval and tool components.

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

Run the Quickstart in development mode and send a message to the prebuilt hello-world agent using the WebUI.

Git to clone the Quickstart repository.
Docker.
An OpenAI API key; the Quickstart uses OpenAI by default, and the account must be funded.

Clone the Quickstart repository: the command below.
Documented command
```
git clone https://github.com/eidolon-ai/eidolon-quickstart.git
```
Enter the repository and start the development server with cd eidolon-quickstart and the command below (or sudo make docker-serve). On first run, provide the OpenAI API key when prompted.
Documented command
```
make docker-serve
```
Open http://localhost:3000 in a browser, select the Eidolon Developer Tool app card, and click Execute for the agent’s converse action.
Enter a message such as Hello world! Write a haiku admiring the earth.

The Quickstart server runs locally and the hello-world agent can respond through the WebUI.

The Quickstart uses OpenAI by default; authentication can fail if the API key is unavailable or the account is not funded.
The documented command runs the server in development mode, with a local HTTP server and local memory.

Evidence and transparency

Source record details

Source availability: Active
Sources checked: 16 October 2026
Original website title: eidolon-ai/eidolon · Official homepage title · retained in its source language