> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superdata.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Other clients

> Connect a Streamable HTTP MCP client to Superdata with OAuth or an API key.

Superdata exposes a stateless Streamable HTTP MCP endpoint:

```text theme={null}
https://api.superdata.so/mcp
```

## OAuth

Clients with MCP OAuth support can discover Superdata's authorization server
from the endpoint's `WWW-Authenticate` challenge. Complete browser sign-in and
grant the `mcp:use` permission.

## API key

Create a key from **Connections**, then send it as a bearer token:

```http theme={null}
Authorization: Bearer sd_live_your_key_here
```

The account that owns the key must remain approved, and the key must remain
active.

<Warning>
  Never place the key in a URL, source file, screenshot, or chat message. Use an
  environment variable or your client's secure credential storage.
</Warning>

## Verify the connection

After the MCP initialization handshake, list tools. A working connection
exposes `superdata_search_companies` and `superdata_search_people`.