Synter
Synter Media · Synter: AI Media Buying Agent and Ads MCP That Plans, Launches and Manages Campaigns Across Ad Platforms
Synter is a hosted AI agent for paid media that reads, plans, launches and adjusts campaigns across Google, Meta, LinkedIn, TikTok, Reddit, Microsoft, X, Amazon, The Trade Desk, DV360 and other ad platforms, from its own app or from Claude, ChatGPT, Cursor or Codex through an MCP server. Spend-affecting changes wait for your approval. It suits growth teams, media buyers and agencies that run ads on several platforms at once.
Best for
Growth teams, in-house media buyers and agencies running paid campaigns on three or more ad platforms who want one agent (or their own Claude, ChatGPT or Cursor setup) to report, launch and adjust campaigns under approval gates and spend caps, without paying a percentage of ad spend
Not ideal for
Advertisers on a single platform whose native AI tools already cover them, teams that need predictable flat pricing, buyers who need a long track record or independent case studies, and small agencies with many low-spend clients (each extra Scale workspace is $500 a month), and anyone who needs a self-hosted deployment
Who it's for
Growth and performance marketing teams, in-house media buyers, agencies managing many client ad accounts, and developers who want their AI agent to operate ad accounts through MCP
Capabilities
- Cross-platform paid-media reporting in one call: spend, impressions, clicks, conversions, CTR, CPC and CPA per platform and in total, read live from each platform where possible, with platforms that have no performance read listed as such rather than shown as zero
- Two-phase campaign launches: the agent stages a reviewable plan as paused and returns an execute token, a preflight check runs before launch, and readback tools confirm what the platform API actually stored
- Verified read, write (pause, enable, budget) and full campaign creation on Google Ads (Search, Display, Demand Gen, Performance Max), Microsoft Ads, Meta, LinkedIn, X, Reddit, TikTok, Snapchat and Pinterest, with more limited support on Amazon Ads, Amazon DSP, The Trade Desk, DV360, Spotify, OpenAI Ads and StackAdapt
- Ongoing optimization work: budget pacing against caps you set, negative-keyword mining with Broad, Phrase and Exact match types on Google and Microsoft, CPA anomaly checks and creative-fatigue alerts, with proposed changes waiting for review
- Creative Studio canvas with artboards, layers and an inspector, a brand kit pulled from your website, platform sizes for Meta, LinkedIn, Google, TikTok and Reddit, and competitor-inspired drafts based on ads in the Meta Ads Library
- AI image and video ad generation (Synter names Imagen, Flux and SDXL for images and Veo, Runway and Luma for video) plus ad copy generation
- First-party tracking with a Synter pixel and server-side conversion fan-out, GA4 and Google Tag Manager setup, offline conversion upload, and CRM audience syncs to Meta, Google and LinkedIn
- Hosted MCP server with browser OAuth for Claude, ChatGPT, Cursor, VS Code, Codex, Gemini CLI, Windsurf, Cline, Amp and Google Antigravity, plus a REST API, CLI and SDKs for Python, TypeScript, Rust, Java and Go
Limitations
- The 43-platform figure is a catalog count: Synter's capability matrix (last verified October 7, 2026) covers 16 platforms, several of those have limited write or create support, and many catalog platforms are marked beta or request-access
- Official sources disagree on coverage and pricing: the homepage and llms.txt list different platform sets, the Product Hunt listing and the GitHub README say 30+ platforms and $0.25 per verified write, while the pricing page meters each action separately ($0.05 for a pause, $5 for a campaign launch); the homepage also says Scale unlocks Campaign IDE access while the pricing table lists it on Solo
- Metered pricing is hard to forecast: actions run in the Synter app cost 5x the MCP rate (a $25 campaign launch versus $5), image generation is $2, video $27.50, and LLM tokens in the app are billed on a separate Model Usage meter
- Solo ($20 a month) is one seat, one workspace and one advertiser account per platform with one-by-one optimization approvals; 24/7 Autopilot, CRM sync, role-based access, multi-touch attribution and 90-day audit history start at Scale, $500 a month per workspace
- Agency economics: Scale also includes one brand workspace and one advertiser account per platform, each extra client workspace is another $500 a month, and multi-account (MCC or Business Manager) access is listed only on Custom
- Hosted service only: the MIT-licensed MCP package and SDKs are open source, but campaigns, credentials and agents run on Synter's servers, and no self-hosted deployment is documented (a dedicated VPC is listed only for Custom plans)
- Approval over MCP partly depends on your client: Synter's own GitHub README says the open-source MCP package has writes enabled by default (with an optional read-only mode) and that confirmation prompts depend on the MCP client, so server-side spend caps, paused launches and preflight are the backstop
- Some connectors are thin: PostHog and Pipedrive are listed as connection status only, and HubSpot and Salesforce reads run through execute scripts
- The lower-CPA and ROAS figures on Synter's homepage are its own reported customer outcomes, and there is little independent evidence on results yet
Use cases
- Pulling one spend, conversion and CPA report across Google, Meta, LinkedIn and Reddit accounts from Claude or ChatGPT without exporting from each ad manager
- Launching the same campaign on Google Search, Meta and LinkedIn from one brief, reviewing the paused plan, then approving the launch
- Running a weekly Google Ads and Microsoft Ads search-term audit and adding negative keywords for queries that spent without converting
- Checking budget pacing across many client accounts and getting a drafted correction when a channel runs ahead of its cap
- Syncing a CRM customer list to Meta, Google and LinkedIn audiences and launching a campaign against it
- Drafting a batch of on-brand ad images from a brand kit and competitor ads, then shipping the cut in each platform's sizes
Our take
Synter is one of the broader attempts to let an AI agent operate ad accounts rather than just advise on them, and its write path (staged paused plans, preflight checks, server-side spend caps, readback and an audit log) is more explicit than most in this category. The MCP-first design is its clearest difference: a team already working in Claude, ChatGPT or Cursor can get free cross-platform reporting today and add metered writes later. Treat the 43-platform headline as a catalog and check the 16-platform capability matrix for the accounts you actually run, and model the per-action pricing (with its 5x in-app markup) against how often you launch. Start read-only, reconcile a report against your native ad manager, and then decide whether to pay for writes.
Who should use it
Media buyers, growth leads and agencies who manage spend across several ad platforms and want an agent, or their own AI assistant, to handle reporting, pacing checks, negative keywords, audience syncs and approved launches from one place.
Who should skip it
Advertisers whose spend sits on one platform, teams that need flat and predictable pricing, regulated buyers who need a self-hosted deployment or a long vendor track record, and anyone who would rely on the beta or request-access platforms in Synter's catalog.
Strengths
- Works across many ad platforms from one place, including programmatic and retail media, not just Google and Meta
- Spend-affecting writes go through staged plans, preflight checks, server-side spend caps, approvals and an audit log
- Use it from your own Claude, ChatGPT, Cursor or Codex setup through the MCP server, or from Synter's app
- Reading and reporting are free, and Synter takes no percentage of ad spend
- Self-serve signup with no access review, and an MIT-licensed MCP package with a demo mode
- Covers creative, tracking and audience syncs as well as campaign management
Weaknesses
- Verified write and create support covers 16 platforms, far fewer than the 43-platform headline
- Per-action metering, a 5x markup inside the app and a separate LLM meter make costs hard to predict
- Official pages disagree on platform lists and on how writes are priced
- Autopilot, team seats, CRM sync and attribution need Scale at $500 a month per workspace
- No self-hosted option; a dedicated VPC is offered only on Custom
- Results claims so far are Synter's own
Synter pricing
Free to Read
$0
Billed monthly
- Own-account reads, reporting, budget pacing, tracking diagnostics and GAQL queries at $0
- No payment method needed to connect accounts and read
- No live writes or campaign launches
Solo
$20
Billed monthly
- $20 of claimable usage credits a month
- Full MCP, CLI and API access
- 1 seat, 1 workspace, 1 advertiser account per platform
- Optimization recommendations approved one by one
- $200 a year billed annually
Scale
$500
Billed monthly
- Per workspace, with $500 of claimable usage credits a month; 1 brand workspace and 1 advertiser account per platform
- 5 seats with role-based access
- 24/7 Autopilot optimization and 1-click bulk execution
- CRM sync (HubSpot, Salesforce, Attio, Pipedrive), multi-touch attribution and MMM
- $5,000 a year billed annually
Custom
Custom
- Sales-led for high-volume advertisers, agencies and enterprise brands
- Unlimited seats, SSO (SAML/Okta) and multi-client workspaces
- DSP access and white-label client portal
- Dedicated customer engineer and custom SLA
Free tier limits: Read-only: reporting, campaign listing, daily spend, budget pacing and diagnostics are free, but launching, pausing, budget changes and creative generation need a paid plan.
Note: Prices in USD. Beyond included credits, actions are billed at published rates over MCP, SDK, CLI and API: reads $0, light writes such as a pause $0.05, unpriced calls $0.25, campaign launch $5, image generation $2, video generation $27.50, pixel and CAPI ingest free. Actions run inside the Synter app cost 5x the MCP rate (for example $25 per campaign launch), and LLM tokens in the app bill on a separate Model Usage meter unless you bring your own key. Extra Scale workspaces are $500 a month each, and multi-account (MCC or Business Manager) access is listed only on Custom. Synter charges no percentage of ad spend. Self-service plans include a small Synter attribution that Custom plans can remove. The Product Hunt listing and GitHub README describe pricing as $0.25 per verified write, so confirm current rates on the pricing page.
Technical specs
Modalities
Text, Image, Video
API pricing
Reads free; writes and generation metered per action (from $0.05 for a pause to $5 per campaign launch over MCP, SDK, CLI or API), with plan credits included
Where Synter excels
Weekly cross-platform readout for a growth team
One free reporting call returns spend, conversions and CPA per platform and in total across connected accounts, so the team can review performance in Claude or ChatGPT instead of exporting from each ad manager.
Agency pacing checks across client accounts
Synter checks spend against caps you set and drafts corrections for review, and separate workspaces keep each client's data and credentials apart (on Scale, each extra workspace is $500 a month).
Multi-channel launch from one brief
The agent stages the campaign as a paused plan across Google, Meta and LinkedIn, runs a preflight check and launches only after approval, then reads back what each platform stored.
Cutting wasted search spend
Negative-keyword mining with Broad, Phrase and Exact match types on Google Ads and Microsoft Ads flags non-converting queries and adds exclusions once approved.
Synter vs. competitors
Synter vs. Mojo
Mojo by Demandbase is a B2B marketing agent that runs and monitors paid campaigns on Google, LinkedIn and Meta inside write permissions you set, and ties them to Salesforce, Marketo and pipeline reporting. Synter covers many more ad platforms, including programmatic and retail media, and can be driven from your own AI assistant over MCP with free reads and metered writes. Mojo suits mid-market B2B teams centered on pipeline, and Synter suits teams spread across many ad platforms or working through MCP clients.
Synter vs. Different
Different plans B2B demand generation programs end to end, writing LinkedIn and Google ads, landing pages and account-personalized emails, then launching and adjusting them, and is sold through a demo and contract. Synter is narrower on content but wider on ad platforms, is self-serve, and exposes its tools to Claude, ChatGPT and Cursor. Different suits lean B2B teams that want campaigns built for them, and Synter suits teams that want an agent operating many ad accounts.
Synter vs. Fastlane
Fastlane's agent, Senna, focuses on ad creative volume for consumer brands: it researches competitors, makes many ad and short-form concepts, launches them on Meta and posts organic video. Synter also generates creative but centers on operating ad accounts across many platforms, with reporting, budgets, negative keywords and audience syncs. Fastlane fits Meta-first brands short on creative, and Synter fits teams running several paid channels.
Frequently asked questions
What does Synter do?
Synter is an AI agent for paid advertising. It connects to your ad accounts and can report on performance, stage and launch campaigns, change budgets, pause ads, mine negative keywords, sync audiences and generate ad creative across Google, Meta, LinkedIn, TikTok, Reddit, Microsoft, X, Amazon and other platforms, either from Synter's own app or from an AI assistant connected through its MCP server.
How much does Synter cost?
Reading and reporting are free. Live writes need a paid plan: Solo is $20 a month or $200 a year (one seat, one workspace, $20 of monthly usage credits) and Scale is $500 a month or $5,000 a year per workspace (five seats, $500 of monthly credits, 24/7 Autopilot). Custom is sales-led. Beyond the included credits, actions are metered: pauses cost $0.05, a campaign launch $5 over MCP or $25 inside the Synter app, image generation $2 and video $27.50. Synter charges no percentage of ad spend; your ad platforms bill media directly.
Which ad platforms does Synter support?
Synter's catalog lists 43 advertising platforms. Its capability matrix, last verified October 7, 2026, confirms reporting, budget and status changes and full campaign creation on Google Ads, Microsoft Ads, Meta, LinkedIn, X, Reddit, TikTok, Snapchat and Pinterest, with more limited support on Spotify, Amazon Ads, Amazon DSP, The Trade Desk, OpenAI Ads, DV360 and StackAdapt. Many other catalog platforms are marked beta or request-access, so check the matrix for the platforms you need.
Will Synter change my campaigns or budgets without approval?
Not by default. Synter says writes that affect spend, such as launching, enabling or changing budgets or bids, need explicit approval, new campaigns launch paused, and a server-side budget cap is checked before any platform API call. You can turn on autonomy for routine optimizations, and the Scale plan adds 24/7 Autopilot, but Synter says major changes still need confirmation. When you use Synter through an MCP client, whether you see a confirmation prompt depends on that client's settings, so keep the client's tool approvals on or use the MCP package's read-only mode while testing.
How do I connect Synter to Claude, ChatGPT or Cursor?
Add the hosted MCP server at https://mcp.synterai.com to your client and sign in through the browser. Synter documents setup for Claude Code, Claude Desktop and claude.ai, ChatGPT (as a custom connector in Developer mode), Cursor, VS Code, Codex, Gemini CLI, Windsurf, Cline, Amp and Google Antigravity. An API key header is available for headless use.
Is Synter open source?
Partly. The MCP server package (@synterai/mcp-server), the JavaScript and Python SDKs and Synter's GitHub repositories are published under the MIT license, and the MCP package has a demo mode with sample data that needs no account. The campaign execution, credential storage and agents run on Synter's hosted service, and no self-hosted version is documented.
Can an agency manage several client ad accounts with Synter?
Yes, but plan around the workspace limits. Synter keeps each client's brand, data, ad accounts and approvals in a separate workspace. Solo allows one workspace, Scale includes one brand workspace with one advertiser account per platform and charges $500 a month for each extra workspace, and multi-client workspace governance and multi-account (MCC or Business Manager) access are listed on the sales-led Custom plan.
What is Synter Canvas?
Synter Canvas is the name Synter used for its Product Hunt launch. On Synter's site the canvas is Creative Studio, an ad design workspace with artboards, layers, a brand kit pulled from your website and platform sizes, where the agent can draft creatives (including ones inspired by competitors' Meta ads) that you edit and then ship to your campaigns.
Integrations & fit
Alternatives to consider
Demandbase
Mid-market B2B marketing teams running paid media and ABM on Google, LinkedIn and Meta with Salesforce and Marketo or HubSpot, who want an agent to execute and monitor campaigns under set approval rules
Freemium
Different Labs, Inc.
US-based B2B companies with a small marketing team running ABM, new-logo and nurture programs on LinkedIn, Google and email with HubSpot as their CRM (and HubSpot or Marketo for email), who want one system to write, launch and adjust campaigns and are fine buying through a demo and contract
CustomAbout Synter
Synter, made by Synter Media (formerly at syntermedia.ai), connects to your ad accounts over OAuth and puts agents to work on the media-buying jobs that usually mean logging in to several ad managers: cross-platform reporting, budget pacing, negative-keyword audits, audience syncs, creative and new campaign launches. You can use it two ways. The Synter app (Agent Console, Campaign IDE and Creative Studio, the canvas launched on Product Hunt as Synter Canvas) runs Synter's managed agents, with the LLM work included and billed by Synter (its own Angstrom model is still in development and not available to customers). The Universal Ads MCP at mcp.synterai.com lets Claude, ChatGPT, Cursor, Codex, Gemini CLI, Amp and other MCP clients call the same tools with your own LLM, and there are a REST API, CLI and SDKs for Python, TypeScript, Rust, Java and Go. Writes follow a two-step path: the agent stages a campaign plan as paused, you review it, and a separate execute call launches it after a preflight check, with server-side spend caps, readback from the platform API and an audit log of who proposed, approved or rolled back each change. Synter's catalog counts 43 advertising platforms, but its own capability matrix verifies read, write and create support for 16 core ones, and several others are beta or request-access, so check the platforms you need. Pricing is unusual: reading and reporting are free, and live writes need Solo ($20 a month) or Scale ($500 a month per workspace), each with matching usage credits, after which actions are metered per call (a campaign launch is $5 over MCP and $25 inside the Synter app). Synter takes no percentage of ad spend. It fits teams that want one agent across many ad accounts and are comfortable reading a per-action price list; teams on one platform, or who want a mature product with independent case studies, have simpler options.
Updates from Synter
Synter launched Synter Canvas on Product Hunt, pitched as an AI agent that runs ads across many ad platforms from Claude, ChatGPT and other MCP clients, with free reads, metered writes and no fee on ad spend. The founder described a trust-building model where you approve every change at first and grant more autonomy over time, while big or irreversible actions still ask first.
Synter added targeting of specific states and provinces for Meta ad sets, creation of Google Ads conversion actions from a conversational brief, and a fix so Meta campaign and ad set updates use the intended ad account when several are connected.
Negative keyword management on Google Ads and Microsoft Advertising now supports Broad, Phrase and Exact match types.
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