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

# TrlEnum

GraphQL enum

Technology readiness level (TRL)

Reference: https://developer.tradespace.io/api-reference/types/enums/trl-enum

## Values

- `level_1` — Basic principles observed and reported
- `level_2` — Technology concept and/or application formulated
- `level_3` — Analytical and experimental critical function and/or characteristic proof-of concept
- `level_4` — Component and/or breadboard validation in laboratory environment
- `level_5` — Component and/or breadboard validation in relevant environment
- `level_6` — System/subsystem model or prototype demonstration in a relevant environment (ground or space)
- `level_7` — System prototype demonstration in a space environment
- `level_8` — Actual system completed and "flight qualified" through test and demonstration (ground or space)
- `level_9` — Actual system "flight proven" through successful mission operations

## Definition

```graphql
enum TrlEnum {
  level_1
  level_2
  level_3
  level_4
  level_5
  level_6
  level_7
  level_8
  level_9
}
```