AuthoredUp is a LinkedIn writing and analytics tool that works inside LinkedIn through a Chrome extension and on its own web platform: text styling, feed previews, hook libraries, a calendar and detailed post analytics. Its API and MCP let an AI assistant read your data and write drafts. Flaghand is a publishing desk for your own drafting agent: the agent prepares the posts, and they go out only after you approve the exact post with your passkey.
Checked on October 26, 2026. Every AuthoredUp fact here comes from AuthoredUp's own pricing page, editor page, scheduling help article, MCP guide, API overview and API specification. Prices and features change, so check those pages before you choose.
The short answer
- Choose AuthoredUp if you write your LinkedIn posts yourself and want formatting, a desktop and phone feed preview, hook and ending libraries and analytics of your whole LinkedIn history, right inside LinkedIn. Its MCP also lets an assistant study your posts and prepare drafts for you to publish.
- Choose Flaghand if your agent already writes the posts and you want a separate desk to post them at their time, only after the server has your passkey approval over the exact post. Flaghand also posts to X.
Where AuthoredUp is better
- Formatting and preview while you write. AuthoredUp's editor adds bold and italic text, bullets, numbered lists and emoji, with a readability grade and length insights. Its preview shows the feed on desktop and mobile, in light and dark mode, including the "See more" fold. Flaghand isn't a writing editor: its desk draws each post the way LinkedIn's feed does, with "… more" where the feed cuts it, for you to review and approve.
- Writing aids. AuthoredUp has libraries of opening hooks and closing lines, unlimited snippets, and Coauthor, an AI writer that learns your voice from your posts. Every plan includes Coauthor credits, with more as a paid add-on; AuthoredUp says it is in closed beta. Flaghand leaves writing to your agent.
- LinkedIn analytics. The extension collects your past LinkedIn posts with their numbers, going back years. AuthoredUp reports impressions, reactions, comments and engagement rate, and for personal posts saves, sends, reach, profile views and followers gained. It adds a best-time heatmap built from your own history, side-by-side post comparison and CSV export. Flaghand doesn't currently provide LinkedIn analytics or read-back.
- Company pages and groups. AuthoredUp publishes or schedules as company pages you admin, with no per-page charge, and posts into LinkedIn groups. Flaghand publishes to LinkedIn personal profiles, not company pages or groups.
- Teams. The Business plan adds shared drafts, a team calendar, roles and team analytics, billed per connected profile rather than per person. A read-only link lets someone without an account review a draft.
- A trial you can start now. AuthoredUp offers a free trial without a credit card. Flaghand is in early access: public sign-up isn't open yet.
Your own agent: both have an MCP
AuthoredUp's MCP server connects Claude, Claude Code, ChatGPT, Codex and other clients through an OAuth sign-in, and offers everything its API does: your posts with their statistics, saved posts, profile and company history, and draft management. A personal API key is available on every plan, trial included. Since July 20, 2026 the API can create and update drafts with styled text, @-mentions, tags, the profile or company that should post it, and a planned publish time. Its specification says those drafts can't carry media attachments, and that the draft tools don't publish or schedule anything on LinkedIn. The API allows 100 requests an hour per user.
So in AuthoredUp an assistant prepares and a person publishes: you open the draft in the editor and post or schedule it yourself. Its scheduling help article (updated January 31, 2025) says AuthoredUp has no scheduler of its own. It uses LinkedIn's native scheduling, which LinkedIn has to have turned on for your account, at least 30 minutes ahead, and not every attachment type can be scheduled. Its pricing page says scheduling runs through the extension.
Flaghand splits the work the other way. Your agent drafts, uploads photos, video or a PDF document, checks the posts
and sends you a plan; once you approve it, Flaghand's own scheduler posts each part at its time. No API token scope can
approve, schedule or post, on any plan. Those routes refuse every token and accept only an owner signed in with a
passkey. Apps connected to Flaghand's MCP server by OAuth receive read, drafts, media and request-approval:
enough to prepare a plan and ask you to review it, not to make it live. Its API, OpenAPI spec and MCP tool reference
are public.
What you approve in Flaghand
Your agent checks the drafts and sends you one approval request in the desk. Approving freezes each post into a snapshot: the account, time, text, media, alt text and exact publishing request. Flaghand hashes it with SHA-256 and records your passkey signature over the hash. Changing the text, media, account or time needs a new approval, and the scheduler checks the signed snapshot again right before posting.
Flaghand's check flags anything that wouldn't post exactly as previewed. This is a publishing check, not a promise that the writing will perform well. If you format posts by hand, Formatting a LinkedIn post covers line breaks, bold and italic Unicode letters, lists, hashtags, mentions and where "see more" cuts a post. Flaghand's free LinkedIn text formatter and post previewer work without an account; the previewer shows desktop or phone, light or dark.
After it posts
Flaghand reads each X post back and compares it with what you approved: normalized text, author, hidden reply mentions, media count, available alt text, reply chain and quote. It doesn't verify link destinations or media-file bytes, and LinkedIn posts aren't read back. AuthoredUp's analytics measure how your LinkedIn posts perform; Flaghand's X check shouldn't be mistaken for a LinkedIn feature.
TikTok slideshows
Through Flaghand's slideshow API, an agent lays out a TikTok photo slideshow: photos, text and styles, slide by slide. One renderer draws it for the preview you approve and for the images TikTok receives, pixel for pixel, and approval covers the render hash. The free TikTok slideshow maker uses the same renderer. TikTok is still reviewing Flaghand: Flaghand and TikTok says what you can post until it finishes. This isn't a reason to replace AuthoredUp if LinkedIn writing and analytics are what you need.
Side by side
| AuthoredUp | Flaghand | |
|---|---|---|
| Paid plans, monthly billing | Individual $19.95 a month, one profile; Business $14.95 a month per profile, at least 3 profiles; Custom Growth by quote, at least 10 profiles | Early access; public sign-up isn't open yet |
| Yearly billing | Individual $199.50 a year; Business $149.50 a year per profile | No public plans yet |
| Trial | Free, no credit card; the pricing page doesn't state its length | No public sign-up yet |
| Writing help | Text styling, hook and ending libraries, snippets; Coauthor AI in closed beta | Bring your own agent; free formatter page |
| Preview | Desktop and mobile, light and dark, with the "See more" fold | The desk draws X and LinkedIn posts as their feeds do, with LinkedIn's "… more"; free previewer for desktop or phone |
| LinkedIn analytics | Past posts, per-post metrics, best times, CSV export and API | Not available |
| Publishing | LinkedIn profiles, company pages and groups; scheduling through LinkedIn's own scheduler | X and LinkedIn personal profiles, posted by Flaghand's scheduler; TikTok in review |
| Agent access | API and MCP: read your data, create and update drafts; no publish or schedule tools | API, MCP, agent skill and webhooks; tokens can't approve, schedule or post |
| Approval | You publish or schedule each post yourself in the editor | Owner passkey signature over the exact publishing snapshot |
The AuthoredUp prices are from its pricing page's monthly and yearly tabs. Check its current billing options before subscribing. Flaghand's access status above was checked on October 26, 2026.
Bringing your drafts
AuthoredUp's API lists your drafts as JSON, and its analytics export to CSV. If you save the posts you want to keep as CSV or JSON, Flaghand's migration recipe describes its generic import format. The import creates drafts, with old times as proposed times: it doesn't approve or schedule them, and it doesn't cancel anything already scheduled in LinkedIn. This is a file-based recipe, not a one-click AuthoredUp migration.
Try Flaghand
The agent documentation covers the API and MCP server. How to schedule LinkedIn posts compares LinkedIn's own scheduler, publishing tools and the API. How to let an AI agent post on social media safely has nine checks to run on any tool, this one included. Get access to Flaghand.