---
title: "Multi Search Engine - Air Market"
description: "You are looking for sources or checking a fact, and no single search engine gives you the whole picture. This queries several at once through one command and merges the results, dropping duplicates t…"
canonical: "https://airmarket.ai/app/multi-search-engine"
---

[Air Market](/) / [Research](/category/research) / Multi Search Engine

Skill by [opensquilla](/@opensquilla)

# Multi Search Engine

Search scholarly records and the web from one command

## What this does

You are looking for sources or checking a fact, and no single search engine gives you the whole picture. This queries several at once through one command and merges the results, dropping duplicates that turn up in more than one place. Scholarly hits keep their DOI, year and authors where those are available. Some engines need an API key, others do not.

### Top 3 things it does for you

- Look up sources across several search engines at once
- Find papers with their DOI, year and authors attached
- Compare what different engines return for the same query

## Information

**Multi Search Engine at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [opensquilla](/@opensquilla) |
| Category | [Research](/category/research) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 28 KB |
| Licence | Apache-2.0 |
| Repository | [opensquilla/opensquilla](https://github.com/opensquilla/opensquilla/tree/95673be1b7ac5cac0e3fe161ad6b204b629cd74f/src/opensquilla/skills/bundled/multi-search-engine) |
| GitHub stars | 6,655 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Multi Search Engine and recorded 0 findings and 3 flagged items. AIR's verdict: **safe**.

**What Multi Search Engine's check was run against**

|  |  |
| --- | --- |
| Commit | 95673be1b7ac5cac0e3fe161ad6b204b629cd74f |
| Content hash | d5f6db4c625d223173a65f8aca8b7a8facb0bd9a0763e3807757743c039ea4e1 |
| Files read | [Browse the files at this exact commit](https://github.com/opensquilla/opensquilla/blob/95673be1b7ac5cac0e3fe161ad6b204b629cd74f/src/opensquilla/skills/bundled/multi-search-engine/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Multi Search Engine](/security/multi-search-engine)

## About Multi Search Engine

Queries scholarly metadata and the web through Crossref, Brave, Tavily and DuckDuckGo behind a single CLI surface. It fits research search, fact lookup, source discovery, or comparing what different engines return.

Results keep DOI, publication year and authors where Crossref supplies them, and are deduplicated by DOI, arXiv ID, or normalized URL so the same source does not appear repeatedly.

Engines that need an API key gate themselves on the relevant environment variable. Crossref and DuckDuckGo need no key.

## What's inside

- SKILL.md - instructions
- references/engines.md - reference
- scripts/search.py - script
- THIRD_PARTY_NOTICES.md - reference

## Questions

### Is Multi Search Engine safe to install?

AIR scanned this exact version of Multi Search Engine and recorded 0 findings and 3 flagged items. AIR's verdict: safe. The verdict is named by the content that was read, at commit 95673be1b7ac, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/multi-search-engine.

### How do I install Multi Search Engine?

Open https://airmarket.ai/app/multi-search-engine on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/opensquilla/opensquilla/tree/95673be1b7ac5cac0e3fe161ad6b204b629cd74f/src/opensquilla/skills/bundled/multi-search-engine. Install from that link, not the branch.

## Related on Air Market

- [More Research listings](/category/research)
- [Everything by opensquilla](/@opensquilla)

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Canonical URL: <https://airmarket.ai/app/multi-search-engine>