Post, schedule and run ads from ChatGPT

ChatGPT reaches Model Context Protocol servers through Connectors. Once Hermoso is added it appears as callable tools in a normal chat, and it is the one client that renders the Apps SDK widgets Hermoso ships — every other client simply ignores the extra ui:// resources.

Hermoso is the marketing half: 301 tools over one OAuth’d MCP endpoint covering competitor ad research, finished image and video ad generation across 50+ models, publishing and scheduling to eight social channels, and campaign management on Meta, Google Ads, Microsoft Advertising, Reddit Ads, LinkedIn, Pinterest and ChatGPT Ads. One connection, and ChatGPT has all of it.

Connect Hermoso to ChatGPT

1. Copy the connector URL. https://app.hermoso.ai/mcp
2. ChatGPT → Settings → Connectors → Add connector. Name it Hermoso and paste the URL. Connectors may need developer mode switched on once, under Settings → Connectors → Advanced.
3. Connect and approve. Sign in with your Hermoso account when the consent page opens — no key to paste.
4. Ask ChatGPT for something. “Pull my three closest competitors’ longest-running ads and remix the best hook into a 9:16 video,” or “post this render to the channel.” The agent picks the tools; you approve the spend.

If the connector option is not visible, that is the developer-mode toggle rather than anything on our side; Hermoso’s endpoint is the same streamable-HTTP URL every other client uses.

Every channel ChatGPT can publish to

Each of these has its own page with that channel’s real caption cap, its real visibility options, what it refuses and why, and a worked example phrased for ChatGPT.

All eight queue through one schedule_post calendar with per-channel captions, and list_scheduled reports per-channel outcomes rather than a single green tick — “the job succeeded” and “the post went out” are different questions.

Two channels that are built but not offered

Being straight about this is worth more than a longer list. Two publishing surfaces exist in the codebase and are held back, each waiting on the platform rather than on us:

• Reddit — post_to_reddit is built and reddit_post_stats reads a post back, but Reddit’s Responsible Builder Policy requires explicit written approval before an app may use the Data API, and that ticket has not been granted. The connector is held back rather than offered as an OAuth screen leading to a dead API. Reddit Ads is a different connection and it is live — the full campaign tree, forecasting, targeting search, pixels and lead forms.
• Google Business Profile — post_to_google_business is built, with events, offers and a real call-to-action choice, and so are the listing insights. Google allowlists the Business Profile API per project and the default quota is zero, so every call would 403 for every user. It stays gated until Google grants the project access.

A connector that would hand you a successful OAuth and a dead API is worse than one that is not offered yet, so neither is listed as available.

Three things to type once it is connected

1. Research. “Who are my three closest competitors, and what are their longest-running Meta ads? Tell me which hook keeps repeating.” — walks find_competitors → pull_competitor_ads → mine_angles.
2. Create. “Make me a 9:16 UGC video ad using that hook, with my real product photo and captions burned in.” — walks get_brand → plan_ad → render_ad, and hands back a finished mp4 URL.
3. Ship. “Schedule it to Instagram and TikTok for Tuesday 9am, and build a paused Meta campaign around it targeting the US at $30 a day.” — walks schedule_post → create_meta_campaign → create_meta_ad. The campaign is created paused; nothing spends until you say so.

What ChatGPT cannot do on its own

An agent with a budget is only useful if the blast radius is bounded, so the fence is in the server rather than in a prompt. Every ad campaign, ad set, ad group and ad is created paused, and the status switches that arm real money refuse to run without an explicit confirmation flag. Every render is quoted first — hermoso_capabilities publishes each model’s exact credit cost before anything spends — and credits are reserved before the first provider call and settled at the exact cost afterwards, so a failed dispatch refunds rather than leaving you billed for nothing. Deletes are confirm-gated too, and every campaign tree is read back from the ad platform before your agent tells you what it built.

One step is deliberately not headless: linking an account is an OAuth consent screen, so you connect the channel once in a browser. Everything after that is a tool call.

Beyond publishing

Publishing is the last step, and it is the smallest one. The same connection gives ChatGPT the Meta, Google and LinkedIn ad libraries plus organic TikTok, Instagram, YouTube, Reddit and Threads for research; 50+ image, video, voice and writing models on a single credit meter, with UGC avatars, dubbing, upscaling and native HTML ad formats; and the full campaign tree on seven paid platforms. There are no per-vendor API keys to hold and no separate app to learn.

See the full tool list, or what a marketing MCP is.

Other clients: Claude · Claude Code · Cursor · Codex · Cline · OpenClaw · Hermes · any MCP client

Frequently asked questions

Can ChatGPT post to social media?

Yes, once you connect Hermoso's MCP server. ChatGPT can then publish to Facebook, Instagram, Threads, TikTok, YouTube, X, LinkedIn and Pinterest — and schedule to all eight from one queue with per-channel captions.

How do I add Hermoso to ChatGPT?

Add https://app.hermoso.ai/mcp in ChatGPT as a custom connector and approve it with your Hermoso account. There is no key to paste — the connector signs in with OAuth and mints its own.

Can ChatGPT research my competitors' ads?

Yes. From ChatGPT the Meta, Google and LinkedIn ad libraries are searchable alongside organic TikTok, Instagram, YouTube, Reddit and Threads — ranked by run length, because an ad still running after months is an ad that is paying for itself. It will also tear a competitor down and return a video's voiceover, on-screen text and beat list with timestamps.

Do I need a separate account to use Hermoso in ChatGPT?

No — one Hermoso account, and ChatGPT authenticates against it. The connector signs in with OAuth and mints its own key, so there is nothing to paste. The web studio at app.hermoso.ai is the same engine and the same credits.