# The LAB vocabulary

> Every column a rule may name, with its unit, range and an example: the compiler's own dictionary. Public, no key; the page for a reader is /lab/vocabulary.

Source: https://firmtape.com/docs/developers/lab/vocabulary

Every column a rule may name, with its unit, range and an example: the compiler's own dictionary. Public, no key; the page for a reader is [/lab/vocabulary](https://firmtape.com/lab/vocabulary).

`GET /api/lab/vocabulary`

Plan Free · No key · Version 1.0.0 · Since 2026-09-04

**This endpoint serves:** [LAB: The LAB vocabulary](https://firmtape.com/docs/lab#vocabulary). **Plan:** [Free](https://firmtape.com/features/replay). Free, no account

## Response

The vocabulary.

## Request

```sh
curl \
  "https://firmtape.com/api/lab/vocabulary"
```

```python
import os, requests

H = {}
r = requests.get("https://firmtape.com/api/lab/vocabulary", headers=H)
print(r.status_code, r.text[:500])
```

```js
const r = await fetch("https://firmtape.com/api/lab/vocabulary", {
  method: "GET",
  headers: {  },
});
console.log(r.status, await r.text());
```

## Changes

- 2026-09-04: Added.