Replace posterly?

KINDA · weekend project
catalog price reference $15/mocategory 🐦 social mediareported replacement votes 0

A basic compose-queue-publish loop against open-API networks (Mastodon, Bluesky, Telegram) is a weekend build, same as any scheduler. What's specific to posterly and harder to fake is the agent-native layer: an MCP server exposing tools like generate_captions, get_learned_voice, and find_available_slot so a coding agent can draft and post on your behalf, plus a voice model that's actually learned from your posting history and its own performance data rather than a one-off few-shot prompt. Add Google Business Profile review management, per-platform video transcoding, and client approval workflows for agencies, and the moat is upkeep and depth, not the initial compose/publish loop.

the prompt
Build me a personal social scheduler an AI agent can drive, to replace posterly. Requirements:

- Node + Express + better-sqlite3, with both a localhost compose page and
  a small local HTTP API (list_slots, create_post, get_recent_posts) so a
  coding agent can call it directly instead of only a human using the UI.
- Three open-API targets: Mastodon (access token), Bluesky (app password
  via @atproto/api), and a Telegram channel (bot token). One adapter file
  per network so a fourth is addable later.
- A /caption endpoint: given a topic, call an LLM API (key in .env) with
  my last ~20 published posts as style examples, so drafts sound like me
  instead of a generic AI voice. Cache the examples so it's not refetching
  the DB on every call.
- Slot-based queue: posting times per weekday in my timezone, new posts
  fill the next free slot, or pin an exact datetime; duplicate a post
  across networks with per-network text.
- A node-cron tick every minute publishes due posts, marks each row sent
  or failed before sending (no double-posts), retries failures 3 times.
- Attached images in media/ next to the database, resized per network
  with sharp; a history page of the last 100 sent posts linking out.
- Runs on my always-on box; localhost only, no accounts, no telemetry.
- Out of scope: Instagram, LinkedIn, TikTok, Facebook, and Google Business
  Profile (approval-gated APIs, say so in the README), review management,
  client approvals, video transcoding, and analytics.
- README: getting a Mastodon token, a Bluesky app password, a Telegram
  bot token, and pointing a coding agent at the local API.

$ open in your agent (prompt prefilled, you press enter) or copy it raw

why people still pay

Anyone can wire an LLM to a caption box; keeping a voice model current against real engagement data, holding pre-approved OAuth apps for the platforms that gate access behind business verification, and exposing a stable MCP/API surface an agent can drive reliably are all ongoing work, not a one-time build. Agencies additionally pay for the client-review layer, which needs its own auth and approval state machine.

what you lose

x18 maintained platform integrations, including approval-gated ones (Instagram, LinkedIn, TikTok, Facebook, Google Business Profile)

xa voice model trained on your actual post history and what performed well, not a static prompt template

xGoogle Business Profile review replies and photo management

xclient approval portal and content-plan review for agencies managing multiple brands

xper-platform video/image transcoding tuned to each network's limits

xa hosted MCP server + REST API built for agents, not bolted on after the fact

prior art to inspect before buildingPostizOpen-source social scheduler, self-hostable, covers much of the DIY core for open-API networks.
reported replacements · 0share on X ↗"posterly replacement research and build prompt"
questions
What does the posterly verdict mean?

The core job looks buildable, with meaningful gaps: 18 maintained platform integrations, including approval-gated ones (Instagram, LinkedIn, TikTok, Facebook, Google Business Profile), a voice model trained on your actual post history and what performed well, not a static prompt template. Read the full tradeoff list before committing. This research record is not a hosted IVCIFY tool.

What price does this directory record show for posterly?

The directory records $15/month for Pro, checked 2026-07-30. Verify the source before making a purchase decision. This reference stays outside retail Stack Math unless current matched evidence supports the comparison.

What do I lose by replacing posterly?

Honestly: 18 maintained platform integrations, including approval-gated ones (Instagram, LinkedIn, TikTok, Facebook, Google Business Profile); a voice model trained on your actual post history and what performed well, not a static prompt template; Google Business Profile review replies and photo management; client approval portal and content-plan review for agencies managing multiple brands; per-platform video/image transcoding tuned to each network's limits; a hosted MCP server + REST API built for agents, not bolted on after the fact. If any of those are load-bearing for you, keep paying.

Is there an open-source alternative to posterly?

The listed prior art includes Postiz (Open-source social scheduler, self-hostable, covers much of the DIY core for open-API networks.). Inspect those projects before starting from a blank prompt.