> ## Documentation Index
> Fetch the complete documentation index at: https://exa.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> The Exa API is served at https://api.exa.ai. Authenticate with `Authorization: Bearer $EXA_API_KEY` (or `x-api-key: $EXA_API_KEY`); create keys at https://dashboard.exa.ai/api-keys.
> Prefer the official SDKs, `exa-py` (`pip install exa-py`) and `exa-js` (`npm install exa-js`); both read `EXA_API_KEY` from the environment.
> Tool-using agents can call Exa without writing code through the hosted MCP server at https://mcp.exa.ai/mcp, or install the Exa agent skill with `npx skills add exa-labs/agent-skills` (skill file: https://exa.ai/docs/skill.md).
> The OpenAPI specs at https://exa.ai/docs/exa-spec.yaml and https://exa.ai/docs/team-management-spec.yaml are the source of truth for request and response schemas.

# Exclude Results

> Avoid duplicate results in your new searches by excluding URLs from previous Websets or CSV files.

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## Overview

The Exclude Results feature ensures you don't get duplicate results when creating new searches. By specifying URLs to exclude based on previous Websets or uploaded CSV files, you can focus on discovering fresh, unique results that complement your existing data.

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## How it works

<img src="https://mintcdn.com/exa-52/tmzyKnsgpKLGddKC/images/websets/exclude-flow.png?fit=max&auto=format&n=tmzyKnsgpKLGddKC&q=85&s=b28ac0441991bc4543571ffc2a900963" alt="Exclude results options when creating a Webset" width="1466" height="857" data-path="images/websets/exclude-flow.png" />

1. Begin creating a new Webset
2. Below the criteria in the sidepanel, click "Exclude"
3. Select from past Websets or upload a CSV with URLs to exclude. You can select multiple sources to exclude from.
4. Start your search, with only new results that don't match your exclusions

The maximum number of results you can exclude is determined by your plan.

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## When to use exclusions

* Finding leads that aren't already in your CRM
* Following up on previous searches with refined criteria
* Excluding results you already know about