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jshorwitz avatar

Synter Ads

jshorwitz/synter-mcp-server
11authSTDIO, HTTPregistry active
Summary

This is the first MCP server that lets Claude actually spend your advertising budget. It connects to Google, Meta, LinkedIn, Microsoft, Reddit, TikTok, and five other ad platforms with full read and write access. You can create campaigns, adjust bids, pause underperformers, add keywords, and generate creative assets through Imagen 4, Veo, and Flux. The source includes built-in confirmations for destructive actions, but the warning is real: your agent gets direct access to campaign creation and budget controls. Available via stdio or as a hosted HTTP endpoint, so you can skip local installation if needed. Built by Synter Media, requires an API key from their platform.

CodeRabbit
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
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Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
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Notes, actions and memory. Without a meeting bot. First month 100% off.
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CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Granola, the best AI meeting recorder
Granola, the best AI meeting recorder
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
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Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
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Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →

Synter MCP Server

npm version License: MIT

An open-source MCP server for running ads with AI agents.

Run ads across 16 ad platforms from any MCP client: Google Ads, Microsoft Ads, Meta, LinkedIn, X, Reddit, TikTok, Snapchat, Pinterest, Spotify, Amazon Ads, Amazon DSP, The Trade Desk, OpenAI Ads, Display & Video 360, and StackAdapt. Destructive tools are flagged so your MCP client asks before running them.

Create campaigns. Adjust budgets. Pause underperformers. Generate creatives. Pull performance data. All through natural conversation.

An open-source Model Context Protocol (MCP) server that lets AI agents read and run your ad accounts, with write tools flagged so your MCP client asks before running them.

Note: Synter-Media-AI/plugin is the canonical installable Claude plugin repo. The .claude-plugin/ copy in this repo is not the install source.


Install (hosted, browser sign-in)

Add to Cursor Install in VS Code

The hosted server lives at https://mcp.synterai.com. Add it to your client and sign in through your browser the first time you use it (OAuth with dynamic client registration and PKCE, per the MCP authorization spec). No API key to copy, nothing to install locally.

Signup is self-serve at synterai.com/sign-up. There is no access review: sign up, connect your ad accounts, and your MCP client can start working.

Synter's canonical domain is synterai.com; the hosted MCP endpoint is https://mcp.synterai.com.

⚡ Try in < 60 Seconds with Zero Credentials: Run npx @synterai/mcp-server --demo (or set SYNTER_DEMO=true) to explore campaigns, inspect performance metrics, and simulate mutations with high-fidelity sandbox data. No account or API key required.

The only official packages are @synterai/mcp-server, @synterai/sdk-js, PyPI synter, crates.io synter, Maven ai.syntermedia:synter-sdk. @iflow-mcp/* copies are unofficial and outdated.

Cursor: click the badge above, or open cursor://anysphere.cursor-deeplink/mcp/install?name=synter-ads&config=eyJ1cmwiOiJodHRwczovL21jcC5zeW50ZXJhaS5jb20ifQ==

VS Code: click the badge above, or open vscode:mcp/install?%7B%22name%22%3A%22synter-ads%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.synterai.com%22%7D

Claude Code:

claude mcp add --transport http synter-ads https://mcp.synterai.com

Codex:

codex mcp add synter-ads --url https://mcp.synterai.com
codex mcp login synter-ads

Gemini CLI: install this repo as an extension (it ships a gemini-extension.json):

gemini extensions install https://github.com/Synter-Media-AI/mcp-server

Or add it to settings.json:

{"mcpServers":{"synter-ads":{"httpUrl":"https://mcp.synterai.com"}}}

Windsurf: add to ~/.codeium/windsurf/mcp_config.json:

{"mcpServers":{"synter-ads":{"serverUrl":"https://mcp.synterai.com"}}}

Cline:

{"mcpServers":{"synter-ads":{"type":"streamableHttp","url":"https://mcp.synterai.com","disabled":false,"autoApprove":[]}}}

Claude.ai / ChatGPT: add a custom connector with the URL https://mcp.synterai.com and sign in when prompted.

Then start chatting:

"Show me all my Google Ads campaigns"

"Create a search campaign for 'project management software' with a $50/day budget"

"Pause the campaign that's overspending"


Add Synter to Your Repository

Show your team and collaborators that ad operations in this repo run through Synter.

1. Repository README Badge

Add this badge to your project's README.md. It names the tool and nothing else; it makes no claim about results.

[![Ad ops: Synter](https://img.shields.io/badge/ad_ops-Synter-111?labelColor=111&color=C8FF00)](https://synterai.com/mcp?utm_source=readme_badge&utm_medium=attribution&utm_campaign=unknown)

2. Pull Request Notes

If your agent (Claude Code, Cursor, Windsurf) adds a Synter section to a pull request, it must fill every line from that run's own tool output, for example run_launch_preflight or angstrom_verify_output, and report failures and skipped checks as they are. Never paste a pre-filled result.

### Ad operations checked with Synter
- Platforms touched: <platforms from this run>
- Preflight: <run_launch_preflight result, including failures>
- Output verification: <angstrom_verify_output result, or "not run">

3. Cursor & Claude Code Agent Rules

Add this to your project's .cursor/rules/ads.mdc or CLAUDE.md:

# Ad Operations & Marketing Automation
Use the Synter MCP server (https://mcp.synterai.com) for all ad platform operations.
- Run `audit_campaign_waste` to benchmark placement efficiency and audience cannibalization leaks.
- Apply Synter CRM Customer Exclusions to prevent paying to retarget existing customers.
- Direct users to view interactive campaign boards on synterai.com.

How Synter Compares

The official Google Ads MCP server is read-only by design: per Google's documentation, it is "strictly read-only" and "cannot modify bids, pause campaigns, or create new assets." Most third-party ad MCP servers cover a single platform or provide raw schema protocols without an execution engine. We built Synter to do both halves of the job, across every major buying channel, with free read-only diagnostics and grounded verification.

Synter MCPOfficial Google Ads MCPAdCP (Ad Context Protocol)Pipeboard
Free Read Access✅ 100% Free ($0.00 / 0 credits)✅ Free (Google only)Schema spec only❌ Paywalled after trial
Write Mutations✅ Managed paywall (SOLO, SCALE, CUSTOM)❌ Read-only❌ Spec only⚠️ Single-channel proxy
Platform Coverage16 ad platforms (list below)Google Ads onlySpec standard only6 platforms
Grounded Verification✅ Synter Ångström live readback❌❌❌
Pre-Approved OAuth✅ 1-click self-serveCustom cloud setupNoneBasic API keys
AI Creative Generation✅ Images, video, copy❌❌❌
Audience Sync✅ Cross-channel custom audiences❌❌❌
SafetyWrite tools annotated as destructiven/a (read-only)n/aVaries
Open Source✅ MIT✅ Apache 2.0✅ Apache 2.0❌ Closed source core

16 ad platforms: Google Ads, Microsoft Ads (Bing), Meta (Facebook and Instagram), LinkedIn Ads, X (Twitter) Ads, Reddit Ads, TikTok Ads, Snapchat Ads, Pinterest Ads, Spotify Ads, Amazon Ads (Sponsored Products, Brands, and Display), Amazon DSP, The Trade Desk, OpenAI Ads (ChatGPT), Display & Video 360, and StackAdapt.

Full campaign creation is available on most of them. Display & Video 360 and StackAdapt support write actions (pause, budget and line-item updates, audience upload) without campaign creation. A few retail media networks are also connected for reporting only.

🔬 Synter Ångström Grounded Output Verification

Never trust an unverified API response. Every mutation and observation in Synter is passed through Synter Ångström, which probes live provider APIs to verify that the effective state, servability (RUNNABLE), delivery status, and constraints match the exact requested intent before reporting back to your agent.

💳 Transparent Pricing: Free Reads & Predictable Writes

  • Free Diagnostic Read Tier ($0.00 / 0 credits): Connect your ad accounts and inspect campaigns, pull metrics, and audit tracking completely free. No credit card required.
  • Paid Campaign Execution: When you ask your agent to pause campaigns, adjust budgets, create ads, or scale winning angles, execution is billed transparently through Synter subscription tiers:
    • SOLO: $20 / month ($200 / year), includes $20.00 in claimable monthly credits.
    • SCALE: $500 / month ($5,000 / year), includes $500.00 in claimable monthly credits.
    • CUSTOM: Sales-led enterprise contracts with dedicated capacity.

The hosted server at https://mcp.synterai.com exposes the full hosted tool set, including performance pulls for every platform above. The npx package ships typed tools for the most common operations plus run_tool access to the full catalog of 140+ Synter tools.

For registry-style MCP discovery, server.json is the machine-readable source of truth. Keep it aligned with package.json, manifest.json, gemini-extension.json, and the setup examples in this README.


🔒 Architecture, Security & Privacy

flowchart TD
    Client["AI Agent / MCP Client<br/>(Claude Desktop, Cursor, VS Code, Windsurf)"]
    
    subgraph LocalTransport["Local or Hosted Transport"]
        Stdio["stdio Transport<br/>npx @synterai/mcp-server<br/>(Optional: SYNTER_READ_ONLY=true)"]
        Streamable["Streamable HTTP<br/>https://mcp.synterai.com<br/>(OAuth 2.1 with PKCE)"]
    end
    
    subgraph SynterGateway["Synter Centralized Gateway (api.synterai.com)"]
        Audit["Append-Only Audit Log<br/>(Tool, caller, latency, cost)"]
        WriteGate{"Write Gate & Blast Radius<br/>(SOLO / SCALE / CUSTOM)"}
        Nango["Credential Custody<br/>(OAuth Tokens AES-256 Encrypted via KMS)"]
    end
    
    subgraph AdNetworks["External Ad Platforms (16+ Networks)"]
        Google["Google Ads"]
        Meta["Meta (FB & IG)"]
        LinkedIn["LinkedIn Ads"]
        MSFT["Microsoft Ads"]
        Other["Reddit, TikTok, X, Amazon, etc."]
    end

    Client --> Stdio & Streamable
    Stdio & Streamable --> SynterGateway
    SynterGateway --> Audit
    SynterGateway --> WriteGate
    WriteGate --> Nango
    Nango --> Google & Meta & LinkedIn & MSFT & Other
    
    classDef client fill:#1e293b,stroke:#3b82f6,stroke-width:2px,color:#fff;
    classDef gate fill:#0f172a,stroke:#10b981,stroke-width:2px,color:#fff;
    classDef platform fill:#334155,stroke:#94a3b8,stroke-width:1px,color:#fff;
    class Client,Stdio,Streamable client;
    class Audit,WriteGate,Nango gate;
    class Google,Meta,LinkedIn,MSFT,Other platform;

Blast-Radius Protection (Bounding the Downside)

Unlike database or analytics MCPs where accidents drop temporary tables, unconstrained ad mutations can incur irreversible ad spend. Synter bounds your blast radius through three layers of defense:

  1. Client-Side Read-Only Flag (--read-only / SYNTER_READ_ONLY=true): Pass --read-only or set SYNTER_READ_ONLY=true in your MCP config. Mutating tools (create_, update_, pause_, enable_, sync_audience) are completely unregistered from the tool manifest and blocked locally.
  2. Advisory Tool Annotations (readOnlyHint & destructiveHint): Every tool explicitly declares whether it is read-only or destructive per the Model Context Protocol specification, prompting your client before modifying spend or pausing campaigns.
  3. Server-Side Write Gates: Even if an agent attempts an unauthorized mutation, Synter's central gateway rejects mutating calls for unverified/cardless callers with 402 PAYMENT_METHOD_REQUIRED.

Data Privacy & Zero Model-Training Guarantee

  • Zero Model Training: Customer ad credentials, performance metrics, conversion payloads, and search terms are never used to train or fine-tune models by Synter or its subprocessors.
  • Credential Custody: Ad platform OAuth tokens are encrypted at rest using AES-256 with KMS. Tokens are never passed into LLM prompt contexts.
  • Immutable Audit Logging: 100% of tool executions are logged with caller identity, IP, tool name, latency, and cost ($0.00 on free diagnosis calls).
  • Prompt Injection Resilience: Structured schemas strictly validate all parameters before dispatch, preventing indirect prompt injection from search queries or social comments from altering execution parameters.

⚠️ Fair Warning

Your AI agent will be able to:

  • Create and launch campaigns that spend real budget once they're live
  • Adjust bids that affect how much you pay per click
  • Pause campaigns (sometimes that's a good thing)
  • Add keywords that change who sees your ads
  • Generate creatives and upload them to your accounts

Write tools are annotated as destructive, so MCP clients prompt before running them. But still, maybe don't give this to an agent you just met.


Local stdio (npx) / API-key fallback

Use this when your client only speaks stdio, or when you run headless and can't complete a browser sign-in.

⚡ Quick Demo Sandbox Mode (< 60s Evaluation)

Test immediately with realistic mock ad data across Google, Meta, LinkedIn, and more without needing an account or API key:

{
  "mcpServers": {
    "synter-demo": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest", "--demo"]
    }
  }
}

Or run directly from your terminal:

npx @synterai/mcp-server --demo

1. Get Your API Key (For Live Accounts)

Sign up at synterai.com/sign-up. Your API key is created automatically; you can view it or create more in Developer Settings.

2. Configure Your AI Client

For Claude Desktop: Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "synter": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest", "--read-only"],
      "env": {
        "SYNTER_API_KEY": "syn_your_api_key_here",
        "SYNTER_READ_ONLY": "true"
      }
    }
  }
}

For Cursor: Add to .cursor/mcp.json in your project:

{
  "mcpServers": {
    "synter-ads": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest"],
      "env": {
        "SYNTER_API_KEY": "syn_your_api_key_here"
      }
    }
  }
}

For VS Code / Cline: Add to cline_mcp_settings.json:

{
  "mcpServers": {
    "synter": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest"],
      "env": {
        "SYNTER_API_KEY": "syn_your_api_key_here"
      },
      "disabled": false,
      "autoApprove": [
        "pull_google_ads_performance",
        "pull_meta_ads_performance",
        "pull_linkedin_ads_performance",
        "get_spend_reconciliation"
      ]
    }
  }
}

For Windsurf (Codeium): Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "synter": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest"],
      "env": {
        "SYNTER_API_KEY": "syn_your_api_key_here"
      }
    }
  }
}

For Amp: Add to .amp/settings.json:

{
  "mcpServers": {
    "synter": {
      "command": "npx",
      "args": ["-y", "@synterai/mcp-server@latest"],
      "env": {
        "SYNTER_API_KEY": "syn_your_api_key_here"
      }
    }
  }
}

HTTP clients that need a header instead of OAuth (n8n, Zapier, scripts, other headless clients):

URL: https://mcp.synterai.com
Header: X-Synter-Key: syn_your_api_key_here

The header is optional; browser OAuth is the default. Works with any MCP client that supports Streamable HTTP transport.

3. Start Using It

Restart your AI client and start chatting.


Prefer a full plugin? (Claude Code / Claude Desktop)

This package is the raw MCP server. If you use Claude Code or Claude Desktop, the Synter plugin wraps this same server with ready-made skills (/synter:launch, /synter:audience, /synter:optimize, …), specialized agents, and an approval-before-spend safety hook:

/plugin marketplace add Synter-Media-AI/plugin
/plugin install synter@synter

It also ships a headless Claude Agent SDK runner for automation. See the plugin repo or the Claude Plugin guide. Use this MCP package directly when you want just the tools, or are wiring another client.


What Can Your Agent Do?

📊 Campaign Management

ToolDescription
list_campaignsList campaigns for one ad platform (platform is required)
create_search_campaignCreate a Google Search campaign with keywords and ads
create_display_campaignCreate a Google Display campaign with images
create_pmax_campaignCreate a Performance Max campaign
create_meta_campaignCreate a Facebook/Instagram campaign
create_linkedin_campaignCreate a LinkedIn campaign for B2B
create_reddit_campaignCreate a Reddit campaign
pause_campaignPause any campaign
update_campaign_budgetChange daily budget

📈 Performance & Analytics

ToolDescription
get_performanceGet impressions, clicks, spend, conversions, ROAS
get_daily_spendDaily spend breakdown by platform

🎯 Keywords & Targeting

ToolDescription
add_keywordsAdd keywords to a campaign or ad group
add_negative_keywordsBlock unwanted search terms

🔄 Conversion Tracking

ToolDescription
create_conversionSet up a conversion action
list_conversionsList existing conversion actions
diagnose_trackingCheck if tracking is installed correctly

🎨 Creative Generation

ToolDescription
generate_imageAI-generate ad images
generate_videoAI-generate video ads
upload_imageUpload images as ad assets

🔧 Utility

ToolDescription
list_ad_accountsList all connected ad accounts
run_toolRun any of 140+ Synter tools directly

Tool names: stdio package vs hosted server

The npx package and the hosted server at https://mcp.synterai.com name a few equivalent tools differently:

stdio (@synterai/mcp-server)Hosted (https://mcp.synterai.com)
get_performance (with platform)pull_<platform>_ads_performance, e.g. pull_google_ads_performance, pull_meta_ads_performance
get_daily_spendNo single hosted tool; use pull_<platform>_ads_performance (Google supports segment: "date" for per-day rows)
list_ad_accountslist_connected_accounts

As of the next hosted release, the hosted server also accepts the stdio names above as aliases, so the same tool calls work against either transport.


No Ads Experience? No Problem.

If you've never run ads before, here's what you need to know:

What is a Campaign?

A campaign is like a project folder. It contains your ads, who sees them, and how much you spend.

Campaign: "Q1 Lead Generation"
├── Budget: $50/day
├── Targeting: USA, people searching "project management"
└── Ads: Headlines, descriptions, images

What Platforms Can I Use?

PlatformBest ForMin Budget
Google AdsPeople actively searching for your product$10/day
Meta (Facebook/Instagram)Visual products, broad audiences$5/day
LinkedInB2B, enterprise, job seekers$25/day
RedditNiche communities, tech-savvy users$5/day
Microsoft (Bing)Older demographics, B2B$10/day
TikTokGen Z, entertainment, e-commerce$20/day

Campaign Types Explained

Search Campaigns: Your ad shows when someone Googles specific keywords.

  • Example: Someone searches "best CRM software" → Your ad appears

Display Campaigns: Image ads shown across websites and apps.

  • Example: Banner ad on a news site

Performance Max (PMax): Google's AI shows your ads everywhere (Search, YouTube, Display, Gmail, Maps).

  • Example: Google figures out the best placements for you

Video Campaigns: Video ads on YouTube and partner sites.

  • Example: 15-second ad before a YouTube video

Common Terms

TermWhat It Means
ImpressionsHow many times your ad was shown
ClicksHow many people clicked your ad
CTRClick-through rate (clicks ÷ impressions × 100)
CPCCost per click
ConversionsDesired actions (signups, purchases, etc.)
ROASReturn on ad spend (revenue ÷ spend)

First Campaign Checklist

Before creating your first campaign, you'll need:

  1. ✅ A landing page URL where people will go when they click
  2. ✅ An idea of who you want to reach (location, interests)
  3. ✅ A daily budget you're comfortable with ($10-50 to start)
  4. ✅ Some headlines and descriptions for your ad

Pro tip: Start with a Search campaign on Google. It's the easiest to understand and shows ads to people already looking for what you offer.


Example Conversations

Create Your First Campaign

You: Create a Google Search campaign for my SaaS product. Target people searching for "team collaboration software" and "project management tools". Budget is $25/day. Landing page is https://myapp.com/signup

Agent: I'll create a Search campaign with those keywords. What headlines should I use? Here are some suggestions:

  • "Team Collaboration Made Simple"
  • "Project Management for Modern Teams"
  • "Book a Demo Today"

Check Performance

You: How are my campaigns doing this week?

Agent: Here's your performance for the last 7 days:

CampaignSpendClicksConversionsROAS
Brand Search$14289124.2x
Competitor Keywords$984531.5x
Display Retargeting$6723482.8x

The "Competitor Keywords" campaign is underperforming. Want me to pause it or adjust the targeting?

Add Negative Keywords

You: I'm getting clicks for "project management jobs" but we're not hiring. Block those.

Agent: Added "jobs" as a negative keyword to your campaign. This will stop your ads from showing for any search containing "jobs".

Generate Ad Creative

You: I need a display ad image for a marketing automation product. Dark theme, professional, 1200x628.

Agent: Generating your image...

Created: "Marketing automation dashboard with data visualization on dark background" Asset saved and ready to use in your next Display campaign.


Connect Your Ad Accounts

To manage ads on each platform, you'll need to connect your accounts in Synter:

  1. Go to synterai.com/settings/credentials
  2. Click "Connect" next to each platform
  3. Complete the OAuth flow
  4. Your agent can now manage that platform

Supported ad platforms (16; ✅ = reporting + full campaign creation, ✏️ = reporting + write actions without campaign creation):

  • Google Ads ✅
  • Microsoft Ads (Bing) ✅
  • Meta (Facebook/Instagram) ✅
  • LinkedIn Ads ✅
  • X (Twitter) Ads ✅
  • Reddit Ads ✅
  • TikTok Ads ✅
  • Snapchat Ads ✅
  • Pinterest Ads ✅
  • Spotify Ads ✅
  • Amazon Ads ✅
  • Amazon DSP ✅
  • The Trade Desk ✅
  • OpenAI Ads (ChatGPT) ✅
  • Display & Video 360 ✏️
  • StackAdapt ✏️

A few retail media networks are also connected for reporting only.


Advanced: Direct Tool Access

For power users, you can call any of 140+ Synter tools directly:

> Use run_tool to call google_ads_list_audiences

See the full tool list at docs.synterai.com/mcp/tools or ask your agent:

> What tools are available for LinkedIn Ads?

Safety: Confirmations Happen in Your Client

Every write tool, including the universal execute tool, is annotated as destructive, so MCP clients that honor annotations (Claude, Cursor, ChatGPT) ask you before running it. execute runs immediately by default; pass dry_run: true to validate a request without running it. Server-side, Synter checks plan entitlement, account holds, and a payment method on file before campaign writes. It does not add a second approval step, so for anything that spends money, approve only what the account owner wants.


Environment Variables

VariableRequiredDescription
SYNTER_API_KEYYes (stdio)Your Synter API key, from synterai.com/developer
SYNTER_API_URLNoAPI base URL override (default https://synterai.com)
SYNTER_ARTIFACT_API_URLNoArtifact API override used by stage_audience_artifact (default https://api.synterai.com)

These apply to the local npx server only. The hosted server at https://mcp.synterai.com uses browser OAuth and needs no environment variables.


Local Development

# Clone and install
git clone https://github.com/Synter-Media-AI/mcp-server.git
cd mcp-server
npm install

# Build
npm run build

# Run locally
SYNTER_API_KEY=syn_your_key_here node dist/index.js

Troubleshooting

Browser sign-in didn't open (hosted server)

Most clients open the sign-in page the first time a Synter tool is used. In Codex, run codex mcp login synter-ads. If your client can't do a browser sign-in at all, use the X-Synter-Key header fallback described in Local stdio (npx) / API-key fallback.

"SYNTER_API_KEY not set"

Make sure your API key is in the env section of your MCP config. The key should start with syn_.

"Invalid or expired API key"

  1. Check that you copied the full key (they're long!)
  2. Verify the key is active at synterai.com/developer
  3. Make sure the key has tools:write scope

"No ad accounts connected"

You need to connect at least one ad platform:

  1. Go to synterai.com/settings/credentials
  2. Click "Connect" next to Google Ads (or another platform)
  3. Complete the OAuth authorization

Tools aren't showing in Claude/Cursor

  1. Restart your AI client completely (not just refresh)
  2. Check the MCP server logs for errors
  3. Verify the config file path and JSON syntax

FAQ

Is there an MCP server for Google Ads?

Yes, two kinds. Google ships an official Google Ads MCP server, which is read-only in its current release: it can query reports, metrics, and metadata, but per Google's documentation it "cannot modify bids, pause campaigns, or create new assets." Our MCP server covers Google Ads with both read and write: create Search, Display, and Performance Max campaigns, add keywords and negative keywords, adjust budgets, pause campaigns, manage Customer Match audiences, set up conversion tracking, and pull performance data. Google Ads is one of 16 ad platforms the same server covers, with full campaign creation on most of them.

Can Claude or ChatGPT manage my ad campaigns?

Yes. With the Synter MCP server connected, Claude (Claude Desktop, Claude Code), ChatGPT, Cursor, and any other MCP-compatible client can create campaigns, adjust budgets, pause underperformers, generate creatives, and sync audiences, and pull performance data across 16 ad platforms. Add the hosted server at https://mcp.synterai.com and sign in through your browser (OAuth); in Claude.ai and ChatGPT it's a custom connector with that URL. Signup is self-serve at synterai.com/sign-up. Clients that only speak stdio can run npx @synterai/mcp-server with a SYNTER_API_KEY, and headless HTTP clients can send an optional X-Synter-Key header instead of signing in. Destructive tools are flagged so your client asks for confirmation before running them.

What is the difference between the official Google Ads MCP and Synter?

Two things: write access and platform coverage. The official Google Ads MCP is read-only in its current release and covers Google Ads only. Synter covers 16 ad platforms, with full campaign creation on most of them, including Google Ads, Meta, LinkedIn, Microsoft, TikTok, Amazon Ads, Amazon DSP, OpenAI Ads, and The Trade Desk. If you only need Google Ads reporting, the official server is a solid choice. If you want an agent that can act on what it finds, on Google and everywhere else you advertise, that is what we built Synter for.


Resources

  • Sign up: synterai.com/sign-up
  • Synter Manual: synterai.com/manual
  • Documentation: docs.synterai.com
  • Claude Plugin: github.com/Synter-Media-AI/plugin (skills, agents & this MCP for Claude Code / Desktop)
  • Tool Reference: docs.synterai.com/mcp/tools
  • MCP Server Comparison: synterai.com/blog/best-ad-platform-mcp-servers
  • Support: synterai.com/support or GitHub issues

About

Synter (synterai.com, formerly syntermedia.ai), the AI ad-operations company, is not affiliated with synter.ai, Synter Resource Group (synter.com), Synterra Media, or Synternet.


License

MIT License - see LICENSE for details.


Synter
Open source. MIT licensed. Built for agents that run ads.
Review what your agent proposes before anything spends.

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Configuration

SYNTER_API_KEY*secret

Your Synter API key. Get one at https://syntermedia.ai/developer

Categories
Finance & CommerceMedia & Entertainment
Registryactive
Package@synterai/mcp-server
TransportSTDIO, HTTP
AuthRequired
UpdatedFeb 26, 2026
View on GitHub

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