---
title: "Introduction"
description: "Proxy is an MCP server that gives AI assistants live access to the Meta, Google, LinkedIn and TikTok ad libraries. No API keys. OAuth only."
---

**[Quickstart](/docs/quickstart)**

Connect in under two minutes and run your first competitor query.

**[Connect your client](/docs/clients)**

Claude, ChatGPT, Claude Code, Cursor, Codex, Copilot, Zed and the CLI installer.

**[Authentication](/docs/authentication)**

OAuth 2.0 with PKCE and dynamic client registration. How the 401 handshake works.

**[Tool reference](/docs/tools/meta-ads)**

Every tool, its parameters, and what it returns.

**[Credits and plans](/docs/credits)**

Free tier, daily limits, and what each call costs.

**[Sandbox](/docs/sandbox)**

Fixture ad data with no account, for testing and auditors.

## What Proxy does

Ad library websites show one ad at a time with no analysis. Proxy exposes those libraries as MCP tools, so an assistant can pull hundreds of ads across brands and platforms in one conversation, transcribe the videos, and explain the hooks, offers and formats that are working.

- **Meta Ad Library** for Facebook and Instagram, by brand or by keyword
- **Google Ads Transparency Center** by domain or advertiser ID, with per-ad creative variations
- **LinkedIn Ad Library** by company, keyword or company ID, with targeting and impression data
- **TikTok EU DSA repository** by registered advertiser name
- **Analysis tools** for image vision, video transcription, competitor discovery and cross-platform briefs

## How it connects

Proxy is a single remote MCP server over Streamable HTTP:

```text
https://mcp.useproxy.dev/mcp
```

There is no REST API and no OpenAPI spec. Any MCP client connects to that URL, signs in through OAuth on first use, and then calls tools directly. See [Connect your client](/docs/clients).

## Who it is for

- Marketers and founders doing competitor research inside ChatGPT or Claude
- Agencies building creative swipe files across many brands at once
- Agent builders who want ad library data as a native tool

:::note
Proxy only returns public ad library data. It cannot see dark posts, unpublished ads, spend, CPM or CPC.
:::