# orion

An MCP server that lets your agent build and operate Orion's declarative REST and Kafka services through 58 admin API tools.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 10
- Author: GoPlasmatic
- License: Apache-2.0 · policy=link-only · description only; the file stays with the author
- Source: https://github.com/GoPlasmatic/Orion
- Updated: 2026-10-19
- HTML: https://affpapa.org/en/nevibecode/mcp/orion

## What it does

Orion is a runtime for declarative services. A service is made of a workflow holding the business logic and a channel that takes traffic. Post both definitions, activate them, and the service answers requests — no application server to write, no container per service.

The MCP server exposes Orion's admin API to your agent as 58 tools. With them the agent can draft a workflow, run it against sample data, activate it, roll it out to a share of traffic, and roll back when something breaks. A developer or an assistant can author the definitions; both go through the same draft, test, activation and audit path.

The server runs in Docker and needs two variables: `ORION_SERVER_URL` and `ORION_API_KEY`. Without the key the admin calls fail. Orion fits request- and event-shaped work that can be written as ordered tasks plus JSONLogic; it is not meant as a general-purpose runtime or a durable workflow engine. One more thing: data channels stay open until they declare authentication or the instance sits behind a proxy that authenticates — go through the production checklist before exposing anything.

## Requirements
- Needs: Docker
- Environment variables: `ORION_SERVER_URL`, `ORION_API_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add --env ORION_SERVER_URL=<ORION_SERVER_URL> --env ORION_API_KEY=<ORION_API_KEY> --transport stdio orion -- docker run -i --rm -e ORION_SERVER_URL -e ORION_API_KEY ghcr.io/goplasmatic/orion-cli:1.1.0
```
Replace <…> with your own values

### Codex

**Platform CLI**
```bash
codex mcp add orion --env ORION_SERVER_URL=<ORION_SERVER_URL> --env ORION_API_KEY=<ORION_API_KEY> -- docker run -i --rm -e ORION_SERVER_URL -e ORION_API_KEY ghcr.io/goplasmatic/orion-cli:1.1.0
```
Replace <…> with your own values

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "orion": {
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "-e",
                "ORION_SERVER_URL",
                "-e",
                "ORION_API_KEY",
                "ghcr.io/goplasmatic/orion-cli:1.1.0"
            ],
            "env": {
                "ORION_SERVER_URL": "<ORION_SERVER_URL>",
                "ORION_API_KEY": "<ORION_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "orion": {
            "type": "stdio",
            "command": "docker",
            "args": [
                "run",
                "-i",
                "--rm",
                "-e",
                "ORION_SERVER_URL",
                "-e",
                "ORION_API_KEY",
                "ghcr.io/goplasmatic/orion-cli:1.1.0"
            ],
            "env": {
                "ORION_SERVER_URL": "<ORION_SERVER_URL>",
                "ORION_API_KEY": "<ORION_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add -e ORION_SERVER_URL=<ORION_SERVER_URL> -e ORION_API_KEY=<ORION_API_KEY> orion docker run -i --rm -e ORION_SERVER_URL -e ORION_API_KEY ghcr.io/goplasmatic/orion-cli:1.1.0
```
Replace <…> with your own values

## When to use it
- stand up a REST endpoint from a JSON definition without writing a server
- run a Kafka consumer and route failed records to a dead-letter topic
- dry-run a workflow draft against a test request before activation
- roll back a service version after a bad rollout
- wire PostgreSQL or Redis through a ready connector

## Example prompts
- Draft a workflow for order processing and show it to me before activation
- Dry-run that workflow on an order with total 12500
- Roll out a new version of the `POST /orders` channel to part of the traffic

## Similar
- [quarkus-application-development](https://affpapa.org/en/nevibecode/skills/quarkus-application-development.md) — skill · ★ 40451
- [dashboard-builder](https://affpapa.org/en/nevibecode/skills/dashboard-builder.md) — skill · 4800 installs
- [spring-boot-saga-pattern](https://affpapa.org/en/nevibecode/skills/spring-boot-saga-pattern.md) — skill · 3800 installs
- [mirrord-header-propagation](https://affpapa.org/en/nevibecode/skills/mirrord-header-propagation.md) — skill · ★ 29
- [realtime-cinema-data-engineering-pipeline](https://affpapa.org/en/nevibecode/skills/realtime-cinema-data-engineering-pipeline.md) — skill · 2000 installs
- [kafka-development](https://affpapa.org/en/nevibecode/skills/kafka-development.md) — skill · 1200 installs

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md