> ## Documentation Index
> Fetch the complete documentation index at: https://docs.reygrid.com/llms.txt
> Use this file to discover all available pages before exploring further.
# ReyGrid Documentation
> Build with the ReyGrid RAG platform API: chat with RAG agents, manage persistent conversations, and integrate through the official Python and TypeScript SDKs.
# Build on ReyGrid
ReyGrid is a RAG platform. Chat with your RAG agents, keep persistent per-user conversations, and manage messages through one REST API, or use the official Python and TypeScript SDKs.
Build directly on top of the HTTP API.
Integrate the API into your Python applications, sync or async.
Build integrations with a fully typed client.
## Send your first message
```bash cURL theme={"system"}
curl -X POST https://reygrid.com/api/v1/agents/{AgentId}/chat \
-H "Authorization: Bearer $REYGRID_API_KEY" \
-H "Content-Type: application/json" \
-d '{"message": "Hello!", "userId": "user_42"}'
```
```python Python theme={"system"}
from reygrid import ReyGrid
client = ReyGrid(api_key="YOUR_API_KEY")
reply = client.chat("{AgentId}", "Hello!", user_id="user_42")
print(reply.output.reply.content)
```
```typescript TypeScript theme={"system"}
import { ReyGrid } from "reygrid";
const client = new ReyGrid({ apiKey: "YOUR_API_KEY" });
const res = await client.chat("{AgentId}", "Hello!", { userId: "user_42" });
console.log(res.output.reply.content);
```
## Explore
Authenticate every request with a Bearer API key.
Keep one conversation per user with `userId`.
Receive replies as Server-Sent Events.
Status codes and error payloads.
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