MCP App Store
by KeenEthics

Overview

Schedule and publish video and image posts to TikTok, Instagram, Facebook, YouTube and X from one place. Connect an account once, upload a file, and schedule it to several destinations at a chosen time; ViewPrinter handles each platform's upload and reports what happened per destination. It also reads back views, likes and follower counts for what has been published, so performance can be asked about in the same conversation the post was made in.

Tools

accounts_connect

ChatGPT
Connect a social account. Opens the platform in the person's browser so they can sign in and approve access — that part cannot happen here, because it needs their session and their consent. Call it again after they finish and it reports the connected account. With invite, the link is for someone else instead — a friend or family member who will create a brand-new account and connect it, with no login of their own here. They get a page showing the profile to set up (picture, username, name, bio) with copy buttons, the steps to switch Instagram to a Creator account, and a Connect button. Give the person the url. Calling again with the same platform and username returns the same invite, updated with whatever profile fields are given, and its status — so that is also how to check whether they have finished. Upload the profile picture first with media_upload, and pass its id once the PUT succeeds.

accounts_list

ChatGPT
List every social account you can post to, across all your workspaces. Each account includes the workspace it belongs to and any groups it is in. Use the returned ids to name post destinations explicitly, or a group name to name several at once. metrics true adds how each account is performing — followers, posts, total likes and following, each with how far it moved over the period — and orders by followers, largest first. Numbers are as of the last sweep rather than live; every account carries the time it was measured, and one nobody has measured yet has no metrics at all rather than zeroes.

comments_list

ChatGPT
Comments on your Facebook and Instagram posts, newest first, replies included. Pass target_id — the id of one destination in a posts_list post's targets — for that delivery's thread, or account_id for everything on one account. Threads: externalParentId names the externalCommentId of the comment it answers; null is top-level. authorKind says who wrote it, as far as the platform would say: "account" is the connected account itself (your own reply), "person" a named member of the public, and "withheld" means the platform would not say — Facebook withholds commenters for now. Withheld is not anonymous; do not report it as such. Read hourly for a post's first day, daily to a week, weekly to thirty days; lastSeenAt is when each was last confirmed. A comment its author deleted has goneAt set and is left out unless include_gone is true. When nextCursor is not null there are more: pass it as cursor with the same arguments for the next page.

comments_reply

ChatGPT
Reply to a comment on one of your posts. The reply is posted publicly, immediately, in that account's name, and cannot be unsent from here. comment_id is a comments_list row's id, not the platform's. The reply is threaded under that comment. It returns status "sent" only when the platform gave the reply an id. "pending" means the platform did not answer and the outcome is unknown: it is confirmed within the hour, and retrying with the same idempotency_key is safe and will not post twice.

groups_delete

ChatGPT
Remove a group. The accounts in it are not touched and stay connected — only the name and its membership go. Posts already scheduled through it are unaffected, because a post records the accounts rather than the group.

groups_list

ChatGPT
Your named sets of accounts. Each group lists its members with the state of each, and how many of them need reconnecting — a post naming a group is refused outright if any member cannot publish, so check here before composing one. Use a group name with posts_save instead of listing account ids.

groups_save

ChatGPT
Create a group or change one. A group is a name for a set of accounts, so posts_save can take the name instead of every id. Found by name without regard to case: an existing group is updated (new_name renames it), and a new name creates one, which needs account_ids. account_ids is always the full membership afterwards, not a list to add. All the accounts must be in one workspace.

media_delete

ChatGPT
Remove a file and its stored bytes. This cannot be undone. A file a post still uses cannot be removed, and neither can raw material kept with purpose source: switch it to library with media_save first.

media_list

ChatGPT
Files in your workspaces, newest first, 50 at a time. Use these ids when attaching media to a post. By default these are the files to post; purpose: source lists the raw material kept to reuse instead. Narrow with kind, tags (files carrying every one) or search (words in the description or tags), or pass media_id for one file of either purpose. Each file has a url to download it from. When nextCursor is not null, pass it as cursor for the next page.

media_save

ChatGPT
Say what a file shows, in your own words. On a base image this is who is on camera — "a woman in her early twenties, blonde hair in a loose bun" — and a campaign reads it so the same person appears in every render instead of changing between them. Send null to clear it. Nothing else about a file can be changed here; what it is was read from the file itself.

media_upload

ChatGPT
Get a file into ViewPrinter, under an id you can pass to posts_save, media_save or anything else that takes a media id. If the person attached the file in this chat, or has it on their phone or computer, call this with no arguments, as an ordinary tool call — not from code, and without trying to send the file yourself. Apps that show widgets put an upload box under the call, which sends the file to ViewPrinter directly even when you have no network access: tell the person to use it. It takes one video or up to ten photos and posts their media ids to the chat, in order, when they are in. Where no box appears, give the person upload_page: any device, no sign-in, lasts an hour. Only if you hold the file yourself and can make HTTP requests (a terminal agent, a server), pass kind and mime_type and PUT the bytes to url with exactly the headers returned. Apps that show widgets never get url: the upload box is the way there. Add sha256 (hex) and a file this workspace already has comes back as existing: true, with nothing to upload. If the file is already on the web — a model’s output link, a meme’s direct link — pass from_url instead, with any description, tags and metadata: ViewPrinter fetches it itself and answers fetching: true straight away. It is recorded within minutes; check with media_list and media_id, and if it never appears the link could not be fetched. purpose: source keeps raw material — a generated take, a recording, a sound effect, a saved meme — to find and reuse later. media_list shows it only when asked for purpose source, and it is never posted or used by a campaign as it is. Several files at once: items, up to 50, each as you would pass one; the answers come back in items, in order. Either way the file lands under id and is recorded as soon as it arrives. With the box or the page, wait for the person before using it.

messages_list

ChatGPT
Direct messages sent to your Instagram and Facebook accounts, newest conversation first. Call with no argument for the inbox, account_id for one account, or conversation_id for one thread and its messages. One conversation is one person on one of your accounts: the platforms carry no thread id, so the person is the thread. replyUntil is the deadline for answering and it is the point of this tool. Meta allows a reply within 24 hours of their last message and refuses after it, so a null replyUntil means a reply will be rejected however good it is — say so rather than drafting one. closesInSeconds counts down to the same moment. participant may be null. The webhook carries ids and no names, so an unnamed person is the platform not saying, not an anonymous one — do not report them as anonymous. fromUs marks our own messages, which include replies sent from the platform's own app. A message the sender unsent has gone set and keeps its place, so a reply still reads in order. The inbox comes 50 conversations at a time; when nextCursor is not null, pass it as cursor with the same arguments for more.

messages_reply

ChatGPT
Send a direct message, privately, in the account's name. Name exactly one of conversation_id or comment_id. conversation_id answers a thread from messages_list, and only while its replyUntil has not passed — Meta allows a reply within 24 hours of their last message and refuses after it. comment_id opens a thread from a comment in comments_list: somebody who comments on your post can be messaged once, within 7 days. One message, not a conversation — they have to answer before you may send another. Use it when a comment needs an answer that does not belong in public. You can never message someone first. If they have neither written nor commented, there is no way to reach them and no permission that grants one. This is private and comments_reply is public. Answering in the wrong one either exposes something meant for one person or hides an answer everyone was waiting for.

platforms_list

ChatGPT
What each platform accepts. Called with nothing, it lists every platform with the media kinds and counts it takes and its caption limit — enough to decide where a post can go. Name platforms to add their recommended sizes and durations, their options with what each one does, and the quirks that decide how a post is treated. Read this before scheduling rather than discovering the rules by being rejected.

posts_list

ChatGPT
Posts in your workspaces, newest first, one page at a time, each with the state of every destination it was sent to and the numbers it has earned so far. Call it to find one post (post_id), to check whether something published, and before changing or cancelling anything — posts_save takes a post_id from here. Numbers are as of the last sweep, and every destination carries the time it was measured — one nobody has measured yet has no metrics at all rather than zeroes. trial names an Instagram trial reel's graduation strategy, and is null for anything that is not one. A trial is shown to non-followers first, so its numbers come from a colder audience than an ordinary post's: compare trials with trials. Each row also carries insights: what the platform's own analytics said on that delivery, never summed across deliveries. reach (distinct accounts), totalWatchMs and avgWatchMs, replays, follows (gained from the post), completionRate and skipRate as fractions 0..1, retention — the full audience-retention curve as Facebook sends it, points[i] being the share still watching at i twentieths of the video and bucketMs one twentieth in milliseconds — and breakdowns such as clicks by type. retentionAt3s and retentionAtHalf are read off that curve, interpolated between buckets, so hooks can be ranked by how many viewers they held; null without a curve or a known video length. Null means the platform does not report it; a name listed in unavailable means it would have and refused this time. Compare watch time across platforms as totalWatchMs / views: Facebook averages per play and Instagram per viewer, so avgWatchMs is not comparable between them. Every filter is optional and they combine: a date range, statuses, platforms, accounts, groups and products by name, where the post came from, and a caption search. Pass nextCursor back as cursor for the next page; null means there is no more.

posts_save

ChatGPT
Create, change or cancel a post. This publishes: a new post is queued for every account named and goes out at scheduled_at, or as soon as possible without one. Do not tell anyone their post is saved or scheduled until this has returned successfully. No post_id creates a post. Name accounts with ids from accounts_list, or a group from groups_list for all of its members — the two combine, and a group is expanded now, so adding an account to it later does not add it to this post. Accounts must all be in one workspace. Attach media by id from media_list; a post is either a video or a set of images, never both. draft true holds it here without sending anything. With post_id, changes a post that has not gone out: caption, time, destinations, or draft state. account_ids and groups then replace the destination list entirely. draft false sends a draft. Setting scheduled_at on a post whose destinations failed queues the failed ones again and leaves the published ones alone — fix what made them fail first, usually by reconnecting. The caption and destinations can only change while nothing has published; after that only the time can, and new words mean a new post. With post_id and cancel true, stops it: destinations that have not started are cancelled, and any already being published cannot be recalled and come back in still_going. Safe to repeat. Publishing has to be enabled on the account; where it is not, a new post saves nothing at all and a draft is left as it was, and the answer says so. Cancelling works whether or not publishing is enabled.

products_delete

ChatGPT
Delete a product. Its accounts stay connected and belong to no product afterwards. Refused while it has campaigns. Its knowledge documents and gathered research are deleted with it, so this is refused while it has any unless confirm_discard is true — read the refusal, which says how many would go, before confirming.

products_list

ChatGPT
The products your accounts post for — an app, a book, a shop — each with the accounts linked to it and the workspace it is in. An account belongs to at most one product. Use products_save to create one or change which accounts belong to it.

products_save

ChatGPT
Create a product, or change one. Found by id when given, otherwise by name (ignoring case) and created when there is none, so saving the same product twice changes nothing the second time. account_ids is the complete list of accounts that post for it: accounts in another product move here, and accounts in this one that are not listed leave it. Leave it out to keep the accounts as they are. A product holds accounts from one workspace; when you are in several and name no accounts, pass workspace_id (from accounts_list).

webhooks_delete

ChatGPT
Stop a webhook. Events already on their way may still arrive.

webhooks_list

ChatGPT
The webhooks set up in your workspaces: where each one delivers, which events, any product or account filter, and whether it is working. status "paused" means too many deliveries in a row failed; lastError says why, and webhooks_save with its id resumes it. hasAuthHeader says whether a credential is set, never what it is.

accounts_connect

Claude

accounts_list

Claude

accounts_performance

Claude

campaigns_create

Claude

campaigns_list

Claude

campaigns_plan

Claude

campaigns_update

Claude

media_confirm

Claude

media_delete

Claude

media_list

Claude

media_upload

Claude

platforms_list

Claude

posts_cancel

Claude

posts_list

Claude

posts_performance

Claude

posts_schedule

Claude

posts_update

Claude

Capabilities

WritesInteractive

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