---
canonical_url: "https://docs.composio.dev/toolkits/jev"
markdown_url: "https://docs.composio.dev/toolkits/jev.md"
product: "platform"
version: null
last_updated: null
---

# Jev

Jev is TypeSafe AI's System One API for discovering available models and evaluating structured state with Noul, Choice, and Score questions.

- **Category:** artificial intelligence
- **Auth:** API_KEY
- **Composio-managed OAuth available?** N/A
- **Tools:** 2
- **Triggers:** 0
- **Slug:** `JEV`
- **Version:** 20261015_00
- **Instant:** Supported on the latest version. Support varies by tool.

## Tools

### Evaluate State

**Slug:** `JEV_EVALUATE_STATE`

Evaluate one shared state against one or more named Noul, Choice, or Score questions in parallel; each call performs usage-priced inference.

**Instant:** Supported on the latest version.

**Instant pricing:** $0.042 per 1 million input tokens; output tokens free

#### Input Parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `model` | string | No | Available model name or alias. Defaults to jev-latest; use JEV_LIST_MODELS to discover account-specific alternatives. |
| `state` | string | Yes | Content to evaluate and share across every question in this call. May be text, a JSON object, or a JSON array. |
| `questions` | object | Yes | Non-empty map from caller-chosen question names to Noul, Choice, or Score definitions. The same names key the returned answers. |

#### Output

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `data` | string | Yes | Data from the action execution |
| `error` | string | No | Error if any occurred during the execution of the action |
| `successful` | boolean | Yes | Whether or not the action execution was successful or not |

### List Models

**Slug:** `JEV_LIST_MODELS`

List the Jev model names and aliases available to the connected account for use in evaluations.

**Instant:** Supported on the latest version.

**Instant pricing:** 0

#### Output

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `data` | string | Yes | Data from the action execution |
| `error` | string | No | Error if any occurred during the execution of the action |
| `successful` | boolean | Yes | Whether or not the action execution was successful or not |