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

# Error reference

> HTTP status codes returned by the MCP Patient State server and what they mean.

| Status | Meaning                                                                    |
| ------ | -------------------------------------------------------------------------- |
| `400`  | Malformed JSON-RPC request or missing required parameter                   |
| `401`  | Missing or invalid `Authorization` header                                  |
| `403`  | Token lacks `mcp:patient-state` scope, or patient not in your organization |
| `404`  | Requested patient or resource not found                                    |
| `500`  | Internal server error; contact support                                     |

For authentication-specific failures (token types, scopes, Patient Tokens), see
[Authentication](/mcp-server/authentication).