Hi All, Clay + Synter: Build audiences in Clay, activate them as ads on Google, Meta, LinkedIn, and Reddit We built an MCP server that lets Clay's AI push enriched lead lists directly to ad platforms and launch campaigns without leaving your Clay workspace. What it does Synter connects to Clay as a Custom MCP Server. Once connected, your Claygents and "Use AI" columns can call Synter tools to:
Sync a list of emails, company names, or domains to any ad platform as a matched audience (Google Customer Match, Meta Custom Audiences, LinkedIn Matched Audiences, Reddit)
Launch campaigns targeting those audiences with budget and creative you define in the prompt
Pull ad performance metrics back into Clay columns
List, pause, or update budgets on active campaigns across platforms
How it works (step by step)
Generate an API key at https://syntermedia.ai/developer
In Clay, go to Workspace > Connections > Custom MCP Server > Add Connection
Set the URL to https://mcp.syntermedia.ai/mcp-sse/sse and add the header X-Synter-Key: syn_your_key
Open any Clay table, add a "Use AI" column, toggle the Synter Ads MCP on
Prompt it
Example prompts you can use right now Sync an audience:
Use Synter to sync these emails to a LinkedIn matched audience called "Clay ABM List - Q1": {Email column}
Sync to multiple platforms at once:
Sync the emails in this table to both Google Customer Match and LinkedIn as "Clay Enterprise Q1"
Launch a campaign against a synced audience:
Use Synter to create a LinkedIn Sponsored Content campaign called "ABM - Enterprise" targeting "Clay ABM List - Q1" with a $50/day budget
Pull ad metrics into a Clay column:
Use Synter to pull Google Ads performance for the last 30 days. Return spend, clicks, and conversions.
LinkedIn is the only platform that supports company-name and domain matching, which makes it useful for ABM lists where you have account names but not contact-level emails.
Use cases we keep seeing
ABM: Build a target account list in Clay with firmographics and intent signals. Sync company names to LinkedIn for Sponsored Content. Sync emails to Google Customer Match. Run coordinated ads across both platforms against the same accounts your SDRs are working.
Retarget unconverted inbound: Pull leads from your CRM who filled out a form but did not convert. Enrich in Clay to fill gaps. Sync to Meta and Google as custom audiences. Serve them case study ads to bring them back.
Suppress closed-won: Sync closed-won accounts from CRM into Clay. Push to ad platforms as exclusion audiences. Stop spending on companies that already bought.
Parallel outbound + paid: Use Clay for email outbound. Simultaneously sync the same list to ad platforms via Synter. Prospects see your SDR email and your LinkedIn ad in the same week.
What makes this different from a CSV upload
Emails are SHA-256 hashed before upload (required by every platform, handled automatically)
You can re-run the sync when your Clay table updates, so ad audiences stay current without manual re-uploads
Campaign creation, budget, and creative are all handled in the same prompt
You get 100+ additional actions beyond audiences: AI image generation, AI video generation, YouTube uploads, GTM tag management, conversion tracking setup, competitor analysis
Credits and pricing Syncing an audience costs 10 credits. Creating a campaign costs 20 credits. Pulling metrics costs 1 credit. New accounts start with 1,000 free credits. Full walkthrough with screenshots and troubleshooting: https://syntermedia.ai/blog/clay-synter-audience-ads Setup takes about 5 minutes. If you run into the ByteString error during MCP connection setup, rename your connection to use only plain ASCII characters (no bullets or special characters in the name). Questions or feedback: joel@syntermedia.ai
And, is it possible to simply have Clay share an MCP server so we can actually build clay tables programmatically with ANY Agent and not be confined to only using Claude?
What is the use case here?
I'm sorry if I am slow, yet, why exactly would you want to use Clay inside of Claude?
Alpha version of SynterMedia.AI is now available. It has an integration with Clay, Claude, and all major Ad Platforms like Google, Reddit, Meta and Linkedin. Using Clay Audiences for Paid Media Campaigns with Synter Clay users already know the power of building precise prospect lists with enriched data. But what happens after you’ve built that perfect audience? Most marketers hit a wall: manually exporting CSVs, reformatting data for each ad platform, waiting for match rates, and repeating the whole process when your Clay table updates. Synter connects directly to your Clay tables and syncs audiences to Google, Meta, LinkedIn, Microsoft, Reddit, and programmatic DSPs like The Trade Desk and StackAdapt. When your Clay data changes, your ad audiences update automatically. How it works: Build your audience in Clay using whatever enrichment and filtering logic you need Connect Synter to your Clay workspace and select your table Map the relevant fields (email, company domain, LinkedIn URL, etc.) to each platform’s audience format Synter pushes matched audiences to your connected ad accounts and keeps them in sync What this unlocks: You can run account-based campaigns where your targeting stays current with your CRM and enrichment data. Launch a new ICP segment in Clay and have it running as a LinkedIn matched audience within hours instead of days. Suppress existing customers across all channels by connecting your customer table. Layer intent signals from Clay enrichments onto your paid media targeting without manual exports. Platform-specific matching: Different platforms accept different identifiers. LinkedIn wants company names and domains. Meta and Google work best with hashed emails. Synter handles the formatting and hashing requirements for each platform so you can use whatever data Clay provides. If you’re already investing time building audiences in Clay, Synter turns that work into expanding into paid media campaigns.
Awesome, DM me - its ready to go - join the waitlist and i'll let you in to start trying it now.
Hi All, I'm launching a new product called syntermedia.ai that will allow you to import audiences from Clay and run Ads. First 200 who join the waitlist will get 25% lifetime discount when we launch on 12/25/25.
