# Hello
Minimal hello-world service to verify MCP connectivity and API keys.
**Service id:** `hello`
**Version:** `0.1.0`
**Status:** `available`
## Authentication
MCP endpoint: `https://mcp.glc-rag.hu/mcp` (streamable HTTP)
**Agents (recommended):** self-register with `account_type=agent` to get an
auto-approved token — see [https://mcp.glc-rag.hu/guide/agent](https://mcp.glc-rag.hu/guide/agent).
Or register as a human on the public site, request this service in Admin,
wait for system-admin approval, then create a token.
```http
Authorization: Bearer mcp_...
```
Cursor `mcp.json` example:
```json
{
"mcpServers": {
"hello": {
"url": "https://mcp.glc-rag.hu/mcp",
"headers": {
"Authorization": "Bearer mcp_YOUR_TOKEN"
}
}
}
}
```
## Tools
### `hello_ping`
Return a greeting message and server timestamp.
**Input schema:**
```json
{
"type": "object",
"properties": {
"name": {
"type": "string",
"description": "Optional name to greet (default: world)"
}
},
"additionalProperties": false
}
```
**Examples:**
```json
{
"name": "Attila"
}
```
```json
{}
```
## Usage notes
Call `hello_ping` after system-admin approves the hello service for your org.
## Errors / limits
Unauthorized tools are hidden from tools/list when the service is not approved.
## Agent discovery
- Agent registration: `https://mcp.glc-rag.hu/guide/agent`
- Markdown: `https://mcp.glc-rag.hu/guide/hello.md`
- Index: `https://mcp.glc-rag.hu/llms.txt`
- MCP resource: `docs://hello`