# Postlyra Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Postlyra

Draft, format, schedule and publish rich posts to Telegram channels with media and templates.

- Record: https://musedirectory.ai/connector/postlyra
- Category: Marketing & Ads
- Developer: prof-1t (https://postlyra.app)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 875ms, checked 2026-09-28T07:31:12Z
- Endpoint: https://postlyra.app/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-25T19:16:34Z)
- Source: Found in the official MCP Registry (io.github.prof-1t/postlyra-mcp) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.prof-1t%2Fpostlyra-mcp

Postlyra connects to Telegram to let you compose beautifully formatted posts with images, schedule them for specific times, and publish to your channels and groups. Create drafts, manage templates, and track publication status.

Example request: "Create a formatted promotional post with images and schedule it to publish to my Telegram channel tomorrow at 2 PM."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Postlyra to help me. It is a free service with an MCP server at https://postlyra.app/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- get_auth_status: Use this when you need to check whether the current MCP caller is authorized through Telegram and linked to a Postlyra account.
- get_formatting_capabilities: Use this when composing or formatting any Postlyra post: call it FIRST, once per task. Postlyra creates beautifully structured rich Telegram posts, illustrated instructions, articles and presentations. Returns the complete RichDocument contract: exact JSON examples for every bloc
- list_channels: Use this when you need to list Telegram channels, groups, and chats the authorized user can manage through Postlyra.
- list_templates: Use this when the user wants an existing reusable Postlyra layout template. Optional for custom composition. For supported blocks, JSON syntax or formatting choices call get_formatting_capabilities; this tool lists saved templates and their ids.
- search_post_drafts: Use this when finding an existing draft by topic, title or content. Search first when draftId is unknown; do not ask for a link. Matches all keywords/fragments in title and rich text, ignoring case. Empty query lists recent drafts. Follow nextCursor while hasMore. For an in-chat 
- create_post_draft: Use this when creating a Telegram draft. Read get_formatting_capabilities; prefer finished richDocument, which overrides text/preset/template. Bind mediaFile1..mediaFile6 or mediaFiles slots as media.src. Returns draftId, JPEG and public preview link. Display the image in the FIN
- preview_post: Use this when requesting a saved draft screenshot, public browser preview or validation warnings. Find draftId with search_post_drafts. Returns documentJson/richHtml, JPEG and enables a public preview link. Use show_post_card for an in-chat card. Follow display.instruction; check
- update_post_draft: Use this when editing a draft. Read preview_post and get_formatting_capabilities. Send the complete edited richDocument, preserving untouched content and media; text replaces layout. Bind imported file slots as media.src. Returns JPEG and enables a public preview link. Display th
- attach_media_to_draft: Use this when adding images without changing draft text. Pass mediaFile1..mediaFile6 or mediaFiles: six total, JPEG/PNG/GIF/WebP, 10 MiB each. Exact placement uses update_post_draft with richDocument slot bindings. Returns JPEG and enables a public preview link. Display the image
- publish_post: Use this when the user explicitly authorizes publishing a reviewed existing Postlyra rich draft to a connected Telegram channel. Resolve channelId using list_channels, inspect preview_post, and supply confirmed=true plus confirmationText containing the user's authorization. Reuse
- get_workspace: Use when checking publication quotas, storage, connected chat count or the account time zone before planning content.
- update_workspace: Use when the author asks to change the account time zone, weekly publication target or content reminder preference. Does not change existing publication times.
- search_posts: Use when finding any existing Postlyra post, including scheduled, published or archived content. Search owner content by words, status, connected channel and update dates. Read the selected post with get_post.
- get_post: Use when reading an existing post and its current revision before editing. Returns the working document without enabling a public preview or publishing anything.
- show_post_card: Use this when the author asks to show a post card inside the chat or choose publication controls there. After search_posts or search_post_drafts, pass the found post ID as postId. Renders the MCP Apps UI with preview, text editing and scheduling. A screenshot or preview_post URL 
- update_post: Use when changing a post's working content, title, buttons or attention flag. Read its revision first. Scheduled and sent messages remain on their own snapshots until apply_post_to_publication is requested.
- copy_post: Use when reusing an existing post as a new independent draft. Copies formatting, media and buttons; does not copy publication jobs or publish.
- archive_post: Use when the author asks to archive a post and cancel its pending publications. Already delivered Telegram messages stay available. Restore later with restore_post.
- restore_post: Use when restoring an archived Postlyra post as a working draft. Previously canceled publication jobs are not restarted.
- list_publications: Use when inspecting scheduled publications, delivery failures or messages previously published by Postlyra. Returns publicationId for rescheduling, cancellation, targeted edits or deletion.
- schedule_post: Use when the author explicitly asks to schedule a post to a connected channel or group. Supply an exact ISO date with UTC offset and an idempotency key. The server uses the shared publishing rules and stores an immutable delivery snapshot.
- reschedule_publication: Use when the author asks to change the date or time of one pending publication. Supply its publicationId and a concrete ISO date with UTC offset. Does not change its content.
- cancel_publication: Use when the author asks to cancel one pending publication. Preserves the source post and its history. A publication already being sent cannot be canceled.
- apply_post_to_publication: Use when the author explicitly asks to apply a working post revision to one selected scheduled or delivered Telegram publication. Other destinations stay unchanged. Read the post revision and publicationId first.
- delete_publication: Use only when the author explicitly asks to delete one message previously published by Postlyra. Supply its publicationId. The source post and messages in other destinations remain available.
- create_template: Use when the author asks to save a reusable post layout. Supply a name and RichDocument. Creates an owner-only template without publishing.
- update_template: Use when changing the author's saved template. System templates and other users' templates cannot be edited.
- delete_template: Use when the author asks to delete their saved template. Existing posts made from it are preserved.
- create_media_upload: Use when uploading a local image, video, document, audio or voice file from any MCP client. Returns a short-lived PUT URL, headers and uploadIntentId. Upload the actual bytes, then call finalize_media_upload. A local filesystem path cannot be read by the server.
- finalize_media_upload: Use after uploading bytes to the URL from create_media_upload. Verifies file content, size and ownership and returns a durable mediaId for attach_media. Expired or invalid uploads are rejected.
- attach_media: Use when adding a finalized owner mediaId to a working post. Read the post revision first. Images, videos, audio and voice become media blocks; documents become file blocks. Does not publish or change existing delivery snapshots.
- get_content_attention: Use when reviewing unfinished drafts, formatting or media problems, lost publishing permissions, failed deliveries and gaps in the author's publication target. Does not read private Telegram Business conversations or send messages.

Screening checks:
- MCP handshake: pass (Answered in 650ms)
- Domain against threat feeds (Cloudflare security DNS): pass (postlyra.app not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (32 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)