RedditAdsMcp

A C# MCP (Model Context Protocol) server for the Reddit Ads API. Provides read-only tools for listing accounts, campaigns, ad groups, ads, and pulling performance reports.

Built with .NET 10 and the official ModelContextProtocol SDK.

Available Tools

All tools accept an optional accountId parameter. If omitted, the default account from REDDIT_ACCOUNT_ID is used.

Prerequisites

1. A Reddit account with an active Reddit Ads advertiser account
2. .NET 10 SDK

Install

Option A: Install as a dotnet tool (recommended)

dotnet tool install -g RedditAdsMcp

Then configure Claude Code (see Step 5b below).

Option B: Clone and build from source

git clone https://github.com/mkerchenski/RedditAdsMcp.git
cd RedditAdsMcp
dotnet build

Then configure Claude Code (see Step 5a below).

Setup

1. Create a Reddit Ads API App

1. Go to ads.reddit.com
2. In the left sidebar, click Developer Applications (under your account/business settings)
3. Click Create a new app and fill in:

Reddit requires a public HTTPS redirect URI (localhost won't work). The URL above is a simple callback page maintained by the package author that displays the authorization code for you to copy — it does not store any data. You can use any HTTPS URL you control instead; just update the redirect URI in Steps 2–3 to match.

4. Click Create app
5. Copy your App ID and Secret — you'll need both in the next steps

2. Authorize the App

Open this URL in your browser, replacing YOUR_APP_ID with the App ID from Step 1:

https://www.reddit.com/api/v1/authorize?client_id=YOUR_APP_ID&response_type=code&state=mcp&redirect_uri=https%3A%2F%2Fhurrah.dev%2Foauth%2Freddit&duration=permanent&scope=adsread

Click Allow. You'll be redirected to a page that displays your authorization code — click Copy.

3. Exchange the Code for a Refresh Token

Run this command, replacing the three placeholders with your App ID, Secret, and authorization code:

curl -X POST https://www.reddit.com/api/v1/access_token \
  -u "YOUR_APP_ID:YOUR_SECRET" \
  -A "ads-mcp/1.0" \
  -d "grant_type=authorization_code&code=YOUR_AUTHORIZATION_CODE&redirect_uri=https://hurrah.dev/oauth/reddit"

The redirect_uri must match exactly what you entered in Step 1.

The response JSON contains a refresh_token field. Save it — it's permanent until revoked.

4. Find Your Account ID

1. Go to ads.reddit.com and click All accounts (top-left dropdown)
2. Select your business on the left — your ad account appears on the right
3. The account ID is the value under the account name (e.g. a2_eaf73mplhhps)

5a. Configure Claude Code (from source)

Add to your Claude Code MCP settings (.mcp.json in your project, or ~/.claude/settings.json), replacing the four placeholder values:

"reddit-ads": {
  "type": "stdio",
  "command": "dotnet",
  "args": ["run", "--project", "/path/to/RedditAdsMcp", "--no-build"],
  "env": {
    "REDDIT_CLIENT_ID": "your_app_id",
    "REDDIT_CLIENT_SECRET": "your_secret",
    "REDDIT_REFRESH_TOKEN": "your_refresh_token",
    "REDDIT_ACCOUNT_ID": "your_account_id"
  }
}

5b. Configure Claude Code (dotnet tool)

"reddit-ads": {
  "type": "stdio",
  "command": "reddit-ads-mcp",
  "env": {
    "REDDIT_CLIENT_ID": "your_app_id",
    "REDDIT_CLIENT_SECRET": "your_secret",
    "REDDIT_REFRESH_TOKEN": "your_refresh_token",
    "REDDIT_ACCOUNT_ID": "your_account_id"
  }
}

Verify with /mcp in Claude Code — the reddit-ads server should appear with 6 tools.

Development

dotnet build    # compile
dotnet run      # start MCP server on stdio
dotnet pack     # create NuGet package

License

MIT