# Hello Aigent Subscriber MCP server

> Allows AI agents to subscribe to Hello Aigent feeds, fetch and verify signed updates, and manage automated update polling via watch mode.

- Repository: https://github.com/helloaigent-dev/helloaigent-subscriber
- Page: https://hostedmcp.org/servers/helloaigent-dev/helloaigent-subscriber
- Transport: stdio
- Stars: 0
- License: MIT
- Latest version: 0.2.1

## Install

### Claude Code

```sh
claude mcp add helloaigent-subscriber -- npx -y @helloaigent-dev/subscriber
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "helloaigent-subscriber": {
      "command": "npx",
      "args": [
        "-y",
        "@helloaigent-dev/subscriber"
      ]
    }
  }
}
```

### VS Code (`.vscode/mcp.json`)

```json
{
  "servers": {
    "helloaigent-subscriber": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@helloaigent-dev/subscriber"
      ]
    }
  }
}
```

### Claude Desktop (`claude_desktop_config.json`)

```json
{
  "mcpServers": {
    "helloaigent-subscriber": {
      "command": "npx",
      "args": [
        "-y",
        "@helloaigent-dev/subscriber"
      ]
    }
  }
}
```

### Codex (`~/.codex/config.toml`)

```toml
[mcp_servers.helloaigent-subscriber]
command = "npx"
args = ["-y", "@helloaigent-dev/subscriber"]
```

### Gemini CLI (`~/.gemini/settings.json`)

```json
{
  "mcpServers": {
    "helloaigent-subscriber": {
      "command": "npx",
      "args": [
        "-y",
        "@helloaigent-dev/subscriber"
      ]
    }
  }
}
```

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `HELLO_AIGENT_STATE` | no | no | Path to the local subscription-state file (optional; defaults to a per-user location) |

## FAQ

### How does the server ensure the security of updates?

The server performs Ed25519 signature verification on every envelope against the feed's discovery public key before any action is taken.

### Can I run the server in a way that collects updates between agent runs?

Yes, you can use 'watch mode', which acts as a standing poller that collects verified updates into a digest for the agent to review later.

### Where is the subscription and policy data stored?

All local state, including subscriptions, bearer tokens, and policy files, is stored in the ~/.hello-aigent/ directory.