# Diagrid Catalyst

Runs Dapr Workflows and Durable Agents on Diagrid Catalyst directly from coding assistants. Useful for checking and managing distributed systems.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 2
- Author: diagridio
- License: Apache-2.0 · policy=link-only · description only; the file stays with the author
- Source: https://github.com/diagridio/catalyst-ai
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/mcp/diagrid-catalyst

## What it does

This integration connects your assistant to the Diagrid Catalyst cloud endpoint at `https://mcp.cloud.r1.diagrid.io/mcp`. It allows models to inspect Durable Agents and run Dapr Workflows. Standard API keys are absent here. You authenticate once via browser OAuth instead.

The connection requires the `offline_access` scope for background token refresh. Without that scope, the session drops on expiry, forcing a fresh browser sign-in. Write operations like `catalyst_apply` disappear from the tool list if your account holds read-only rights. Forwarding requests to a local machine process also requires the external Diagrid CLI.

## Requirements
- Remote server: `https://mcp.cloud.r1.diagrid.io/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http catalyst https://mcp.cloud.r1.diagrid.io/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add diagrid-catalyst --url https://mcp.cloud.r1.diagrid.io/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "diagrid-catalyst": {
            "url": "https://mcp.cloud.r1.diagrid.io/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "diagrid-catalyst": {
            "type": "http",
            "url": "https://mcp.cloud.r1.diagrid.io/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http diagrid-catalyst https://mcp.cloud.r1.diagrid.io/mcp
```

## When to use it
- trigger and inspect Dapr Workflows via chat
- verify active identity and roles inside Catalyst
- apply system configurations using catalyst_apply
- bridge local services to the cloud with app tunnels

## Example prompts
- Who am I in Catalyst and what are my assigned roles?
- Check the status of the latest Dapr Workflow in Catalyst.
- Apply the new configuration using catalyst_apply.

## Similar
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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