Postlyra
Description
Manage Telegram drafts, media, schedules and publications from AI clients.
What our measurements say
Postlyra is a remote MCP server published at postlyra.app. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 453 ms, placing it among the faster endpoints. It exposes a broad tool surface of 32 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Most tools have clear usage scenarios in their descriptions
- Some parameters are well-defined with required/optional flags
Weaknesses
- Multiple tools have truncated or incomplete descriptions
- Ambiguous parameter naming (e.g., mediaFile1-6 vs mediaFiles array)
- Tool overlap between draft/post operations (e.g., attach_media_to_draft vs attach_media)
get_formatting_capabilities— Description cut off mid-sentence with trailing 'n'create_post_draft— Confusing media parameter options (mediaFile1-6 vs mediaFiles array)update_post_draft— Incomplete description about media handling
Verdict
Event narrative
Sign up free to generateRaw observations
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 44ms → warm 39ms (penalty 5ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
get_auth_statusUse this when you need to check whether the current MCP caller is authorized through Telegram and linked to a Postlyra account.
get_formatting_capabilitiesUse 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 block and inline mark, nesting, limits, file uploads, error recovery, presets and which tool to use next. Use this contract for formatting; Telegram MarkdownV2/parse_mode documentation is not needed.
list_channelsUse this when you need to list Telegram channels, groups, and chats the authorized user can manage through Postlyra.
list_templatesUse 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.
channelIdstringcategorystring
search_post_draftsUse 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 card, pass the returned draftId as postId to show_post_card; use preview_post for a screenshot/browser preview. Returns owner-only IDs and snippets. Never edits, enables sharing or publishes.
querystringlimitintegercursorstring
create_post_draftUse 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 FINAL answer via native attachment or display.imageMarkdown. Inspect preview_post. May fetch external image URLs during import or screenshot rendering. Never publishes.
topicstringrequiredstylestringformatPresetstringlanguagestringchannelIdstringtemplateIdstringreferencesarraymediaFile1objectmediaFile2objectmediaFile3objectmediaFile4objectmediaFile5objectmediaFile6objectmediaFilesarraystructurestringtextstringrichDocumentobject
preview_postUse 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 screenshot.truncated and retry unavailable screenshots without recreating the draft. May fetch external image URLs for screenshot rendering. Never publishes.
draftIdstringrequired
update_post_draftUse 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 the image in the FINAL answer via native attachment or display.imageMarkdown. Inspect preview_post. May fetch external image URLs during import or screenshot rendering. Never publishes.
draftIdstringrequiredinstructionsstringtextstringrichDocumentobjectreferencesarraymediaFile1objectmediaFile2objectmediaFile3objectmediaFile4objectmediaFile5objectmediaFile6objectmediaFilesarrayappendCallToActionstringtemplateIdstringchannelIdstring
attach_media_to_draftUse 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 in the FINAL answer via native attachment or display.imageMarkdown. On error follow nextAction. May fetch external image URLs during import or screenshot rendering. Never publishes.
draftIdstringrequiredplacementHintstringreferencesarraymediaFile1objectmediaFile2objectmediaFile3objectmediaFile4objectmediaFile5objectmediaFile6objectmediaFilesarray
publish_postUse 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 idempotencyKey on retry. Queued/retrying means pending, not delivered. This is the external publication action; draft tools never send.
draftIdstringrequiredchannelIdstringrequiredconfirmedbooleanconfirmationTextstringidempotencyKeystring
get_workspaceUse when checking publication quotas, storage, connected chat count or the account time zone before planning content.
update_workspaceUse when the author asks to change the account time zone, weekly publication target or content reminder preference. Does not change existing publication times.
timezonestringcadencePerWeekintegerremindersEnabledboolean
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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