Hermoso holds Pinterest's real publishing rules and enforces them at the moment you schedule: an 800-character description, a 100-character Pin title, media required, and a board chosen explicitly rather than guessed. It also has an honest limit to state up front, which is in its own section below.
Pinterest sits alongside the seven other networks Hermoso publishes to — the queue and the shared mechanics are on the social media scheduler page.
What Pinterest actually allows
The description cap is 800 characters. The Pin title is capped at 100 characters, and if you do not supply one it is derived from the caption on a word boundary — it is never cut mid-word, because a Pin title ending in half a word is the kind of small ugliness that stays visible for years.
Visibility works differently here from every other channel. On Pinterest, visibility lives on the board, not on the Pin: a Pin inherits its board's public or secret state. So there is no private Pin setting to toggle — posting something privately means choosing a secret board. Hermoso treats the scheduled Pin as public because the board decides.
Media is required: an image or a video. Video Pins take a minute or two to ingest on Pinterest's side and can carry a cover image.
boardId is required, and it is refused for free at schedule time if it is missing. This is the only identity id in Hermoso that is refused before anything is queued at all, and the reason is simple: a Pin on the wrong board is a public mistake, so we never choose one for you.
The honest limit
Pinterest only allows Pin creation from apps with Standard API access. Hermoso's app is still on Trial access while the upgrade is under review. In plain terms: boards and reads work today, and Pin creation is not yet available in production. Everything described above is the rule set Hermoso enforces, and it is the rule set that will be in force when creation goes live, but a Pin cannot be published from Hermoso until Standard access lands. We would rather write that sentence than let you discover it after building a queue.
Refused when you schedule, not hours later
Where a rule can be checked, it is checked while you are still there, with Pinterest's rule and the fix attached — never accepted and quietly degraded at posting time. A Pin with no board is refused immediately and free, naming the missing boardId. A description longer than 800 characters is refused against the cap rather than trimmed. A caption-only Pin is refused because Pinterest requires an image or a video.
What Hermoso does not do here
There is no Pinterest analytics in Hermoso. No Pin impressions, no saves, no outbound clicks — the tool does not exist, so nothing on this page claims otherwise. Beyond that, the global gaps apply: no recurring or repeating posts, no first-comment automation, no RSS auto-posting and no URL shortener. Per-channel captions are available on the API and from an AI agent, but the web composer has one caption box.
The paid side
Pinterest ads management is full: campaigns, ad groups, ads, budgets and status. Worth knowing how it fits together — a Pinterest ad promotes an existing Pin, so the ad side works against Pins already on the account rather than creating new creative in place.
From the browser, or from an AI agent
Pinterest works on the same three surfaces as every other channel, with the same rules: the web app, the in-app Studio chat, and any AI agent over the MCP server — Claude, Claude Code, Codex, Cursor, Cline or any MCP client. Connecting is a one-time OAuth flow in Settings, Connectors: a browser is needed once, and everything after that is agent-callable, with no password reaching the model. The account owner ticks exactly which boards and ad accounts Hermoso may use, and the server re-verifies every id against the live connection, so an unticked board is unusable even by its owner's agent.
Scheduling mechanics match the rest: up to 365 days ahead with a minimum lead of more than a minute, or the brand's posting queue with default slots at 09:00, 13:00 and 17:00, up to 24 slots, a 90-day forward horizon and a real IANA timezone. For the creative that a Pin needs, see the AI image ad generator, or look at what is already working in your category with the ad spy tool.
Frequently asked questions
Can Hermoso create Pinterest Pins today?
Not in production yet. Pinterest only allows Pin creation from apps with Standard API access, and Hermoso’s app is still on Trial while the upgrade is under review. Boards and reads work today. The publishing rules described on this page are already enforced and will be in force when Standard access lands.
How long can a Pin description be?
The description cap is 800 characters and the Pin title is capped at 100. If you do not supply a title, Hermoso derives one from the caption on a word boundary, so it is never cut mid-word. Over-length copy is refused with the number rather than truncated to fit.
Do I have to choose a board when scheduling a Pin?
Yes. The boardId is required and is refused for free at schedule time if it is missing. It is the only identity id in Hermoso refused before anything is queued at all, because a Pin on the wrong board is a public mistake that lives on a profile indefinitely, so Hermoso never picks a board for you.
Can a Pin be private?
Not as a property of the Pin. On Pinterest, visibility lives on the board rather than the Pin: a Pin inherits whether its board is public or secret. So posting something privately means choosing a secret board, and there is no private toggle on the Pin itself to set in Hermoso or anywhere else.
Does Hermoso have Pinterest analytics?
No. There is no Pinterest analytics tool in Hermoso, so no Pin impressions, saves or outbound clicks are available. Organic measurement does exist on other channels, including Facebook and Instagram insights, YouTube retention and LinkedIn Page analytics, but Pinterest is not one of them and this page does not claim it is.
Can Hermoso run Pinterest ads?
Yes, in full: campaigns, ad groups, ads, budgets and status. One structural detail matters, though. A Pinterest ad promotes an existing Pin, so the ads side works against Pins that are already on the account rather than creating the creative itself as part of building the campaign.
Can a video be pinned?
Pinterest requires an image or a video on every Pin, so a caption on its own cannot be scheduled. Video Pins take a minute or two to ingest on Pinterest’s side and can carry a cover image. The same 800-character description and 100-character title caps apply whichever media you attach.