## The 5-minute checklist

These four files make your site visible to AI agents. Each takes minutes to add and immediately improves your agentgrade score.

### 1. Add [llms.txt](/kb/llms-txt)

Create `/llms.txt` — a plain-text description of your service for LLMs:

```markdown
# Your Service Name

> One-line description of what your service does.

## API

GET /api/search?q=term — Search items
POST /api/create — Create an item (requires auth)

## Example

curl "https://yoursite.com/api/search?q=test"
```

**Why:** LLMs read this to understand what your service does and how to use it. Start the file with an H1 heading for a verified check.

### 2. Add [OpenAPI](/kb/openapi) spec

Serve `/openapi.json` describing your API endpoints:

```json
{
  "openapi": "3.0.0",
  "info": { "title": "Your API", "version": "1.0" },
  "paths": {
    "/api/search": {
      "get": {
        "summary": "Search items",
        "parameters": [
          { "name": "q", "in": "query", "schema": { "type": "string" } }
        ]
      }
    }
  }
}
```

**Why:** Agents use this to know exactly what endpoints exist and how to call them. Most frameworks can auto-generate this.

### 3. Add [robots.txt](/kb/robots-txt) with agent directives

Add agent-specific rules to `/robots.txt`:

```
User-agent: GPTBot
Allow: /

User-agent: Claude-Web
Allow: /

User-agent: Anthropic-AI
Allow: /
```

**Why:** Signals that your site welcomes AI agents. Many sites block AI crawlers by default.

### 4. Add a health endpoint

Serve `/health` returning JSON:

```json
{ "status": "ok" }
```

**Why:** Agents and monitoring tools use this to check if your service is up before making requests.

## Next steps

Once the basics are in place, consider:

- **MCP endpoint** — Let AI models call your tools directly via JSON-RPC 2.0 ([learn more](/kb/mcp))
- **Payment support** — Accept micropayments from agents via x402 or [MPP](/kb/mpp) ([learn more](/kb/x402))
- **Service catalog** — Publish discoverable endpoints via Bazaar ([learn more](/kb/bazaar))
- **Skills manifest** — Curate the key actions agents should take ([learn more](/kb/skills))

## Scan your site

Enter your domain on [agentgrade.com](https://agentgrade.com) to see your current score and what's missing.

## Related

- [A2A](/kb/a2a)
- [WebMCP](/kb/webmcp)