> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mezmo.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mezmo.ferndocs.com/_mcp/server.

# Mezmo Ingestion Service Limits

> This topic describes the size and length limitations for log and log line components such as body size, app name length, log level, and tags

| Log or Log Line Component | Size Limit                                                                                                                   |
| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------- |
| Body                      | 10MB\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nThis is the server-enforced maximum body size. Ingestion clients may further reduce this |
| Message                   | 16KB                                                                                                                         |
| Metadata                  | 32KB                                                                                                                         |
| Hostname length           | 256 characters\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nDomains within hostnames are truncated. FQDN settings available upon request.  |
| App Name length           | 512 characters                                                                                                               |
| Log Level                 | 80 characters                                                                                                                |
| Tags                      | 80 characters                                                                                                                |
| Depth of nested fields    | 3                                                                                                                            |
| Number of unique fields   | Typically 500 per day                                                                                                        |