---
title: "create_segment. Metadata MCP tool reference"
url: https://metadata.io/developers/tools/create_segment
description: "Create a saved Insights (Spotlight) account-journey segment: a reusable filter over the account's engaged companies, and the input of create_audience_from_segment (and of get_in… Writes tool on the Metadata MCP server, with its full JSON Schema."
source: metadata.io
---

# create_segment

Create a saved Insights (Spotlight) account-journey segment: a reusable filter over the account's engaged companies, and the input of create_audience_from_segment (and of get_in…

Writes [audiences](https://metadata.io/developers/tools/#cat-audiences)

## What it does

## Arguments

| Argument | Type |   | Notes |
|---|---|---|---|
| `name` | string | required | Descriptive, unique segment name, e.g. 'Saturated: 200+ LinkedIn impressions'. |
| `criteria` | object | required | Criteria group: {"operator": "AND"\|"OR", "match": [criterion \| nested group]}. See VALUES BY TYPE. |
| `lookback_window` | integer |   | Optional. Days to evaluate the segment over when counting `accounts` in the response; use the window the audience will be created with. |

## Request

**Request template, not a complete runnable example.** Replace placeholders, empty objects, arrays, and zero values with valid account-specific inputs. Read required fields and nested constraints in the full schema. Confirm the account, connected channels, and referenced assets before calling a write tool.

## Response

## Related

Other audiences tools:

- [archive_audience](https://metadata.io/developers/tools/archive_audience) Destructive
- [create_audience_from_segment](https://metadata.io/developers/tools/create_audience_from_segment) Writes
- [create_bombora_audience](https://metadata.io/developers/tools/create_bombora_audience) Writes
- [create_csv_upload_linkedin_native_audience](https://metadata.io/developers/tools/create_csv_upload_linkedin_native_audience) Writes
- [create_facebook_native_criteria_audience](https://metadata.io/developers/tools/create_facebook_native_criteria_audience) Writes
- [create_firmographic_audience](https://metadata.io/developers/tools/create_firmographic_audience) Writes
- [create_g2_intent_dynamic_audience](https://metadata.io/developers/tools/create_g2_intent_dynamic_audience) Writes
- [create_g2_intent_linkedin_native_dynamic_audience](https://metadata.io/developers/tools/create_g2_intent_linkedin_native_dynamic_audience) Writes

[Browse the tool catalog](https://metadata.io/developers/tools/) · [machine-readable index](https://metadata.io/developers/tools.json)