2026 社交媒體發佈自動化工具與 API：免費方案及服務比較

1 Zernio (formerly Late, getlate.dev now redirects here) Per connected account/month: 1–2 free, 3–10 $6 each, 11–100 $3 each, 101+ $1 each; custom past 2,000 2 accounts free forever, unlimited posting, no card Connected account 19 listed: Threads, Bluesky, Instagram, X, TikTok, YouTube, LinkedIn, Facebook, Pinterest, Reddit, Google Business Profile, Snapchat, Telegram, Discord, Slack, WhatsApp, iMessage, WordPress, Shopify Passed through at X's own rates, "no markup" Managed; Enterprise adds SSO/SCIM Official Node SDK zernio-dev/zernio-node (Apache-2.0, active 2026-10-16) Docs pitch agents and MCP Unlimited analytics; first 10k DMs/month free, then metered; inbox/comments API; ads metered SDK yes, platform no Indie hackers and SaaS that grow account by account Messaging/SMS/WhatsApp priced separately; tiers apply per account, so a 1,000-user SaaS pays per user-account 2 Ayrshare Premium $149/mo (1 profile, ~13–14 accounts); Launch $299 (10 profiles); Business $599 (30 profiles, tiered to 300); Enterprise custom No free plan listed; 28-day trial on Launch "Profile" (one end user/brand with its accounts) "14+": LinkedIn, Instagram, Facebook, TikTok, X, Pinterest, Bluesky, YouTube, Reddit, Google Business Profile, Telegram (+ more) Included through Ayrshare Custom branding on Launch+ Node wrapper ayrshare/social-media-api and ayrshare/social-post-api-python (no license file) MCP mentioned in Ayrshare's marketing (not verified this week) Analytics, comments, webhooks (Launch+), historical content No Agencies and B2B platforms with a clear number of client profiles The most expensive entry point here; the page lists 14 vs 13 accounts in two places 3 Upload-Post Basic $16/mo (5 profiles), Professional $33 (25), Advanced $118 (75), Business $350 (225, +$1/extra profile); annual prices shown Free: 10 uploads/mo, 2 profiles Profile; uploads unlimited on paid 22: TikTok, Instagram, YouTube, Facebook, LinkedIn, X, Threads, Pinterest, Reddit, Bluesky, Google Business, Discord, Telegram, Slack, Mastodon, Nostr, Lemmy, Dev.to, Hashnode, WordPress, Whop, Listmonk X link posts are a paid add-on Whitelabel from Professional Python & JS SDKs, official n8n node, Make, Zapier Hosted MCP at mcp.upload-post.com (50 tools, self-hostable) FFmpeg minutes, "AI Shorts" analyses No Video-first creators; dev blogs (Dev.to/Hashnode/WordPress cross-posting) Profile ≠ account; FFmpeg minutes are capped per plan 4 Post for Me From $10/mo (up to 1,000 successful posts, unlimited accounts); higher tiers by post volume Not stated Successful post 9: TikTok, Instagram, Facebook, X, LinkedIn, YouTube, Threads, Pinterest, Bluesky Through your own white-label app Quickstart (their brand) or White Label (your own platform apps, your name on OAuth) REST API — Analytics included Yes: DayMoonDevelopment/post-for-me (AGPL-3.0, active 2026-10-14) Cheapest per-post API; teams who want to read the code Higher tiers aren't itemised; white-label needs your own platform approvals 5 bundle.social Pro $100/mo (10,000 posts, 5,000 comments); Business $400 (100,000 posts); Enterprise custom Free: 20 posts, 50 comments, 3 accounts Posts per org; accounts unlimited on paid 15: Instagram, TikTok, Facebook, LinkedIn, YouTube, X, Threads, Pinterest, Reddit, Bluesky, Mastodon, Slack, Discord, Google Business Profile, Snapchat Prepaid X credits: post $0.015, post with link $0.20, delete $0.01, analytics $0.005/result Managed REST API, webhooks page — Comments API, post/comment import, DMs and automations (beta) No SaaS embedding social posting for many users Free tier is tiny; X posts fail when the credit balance runs out 6 Outstand Pay-as-you-go $19/mo incl. 3,000 posts, then $0.007/post to 10k, $0.005 after; Business $129 (50k posts, 1,000 account slots, resale allowed) None (closest is $19 PAYG) Post 12: X, LinkedIn, Instagram, TikTok, Facebook, Threads, Bluesky, YouTube, Pinterest, Google Business Profile, Vimeo, Reddit Requires your own X app Managed keys or BYOK (your brand on consent screen) REST API — — No High-volume posting with predictable per-post cost X, GBP, Vimeo and Reddit need your own app registration 7 Blotato Starter $29/mo (20 accounts, 1,250 AI credits); Creator $97 (40 accounts); Agency $499 7-day trial (API excluded from trial) Plan + AI credits 9 platforms (API + MCP) — Managed API, n8n/Make support API + MCP server AI images/video/voice, DM and comment-reply contacts, viral-post database No AI content creators who also want generation, not just posting You pay for AI features you may not need; up to 900 TikTok posts/month on Starter 8 Post Bridge Marketer $39/mo (15 accounts, "API included"); Operator $99 (99 accounts + $1/extra) 7-day trial; free users get 5 posts Account 10: X, Instagram, LinkedIn, Facebook, TikTok, YouTube, Bluesky, Threads, Pinterest, Google Business — Managed API "MCP agent connect" Bulk video scheduling, analytics (beta) No Creators who mostly use the UI and sometimes script it A third-party comparison listed a $5 API add-on, but the live page says included, so confirm 9 PostGate Solo $4/mo (1 profile); Launch $19 (10 profiles) — per its own comparison post, not verified on its pricing page 1 profile, 10 live posts/mo, sandbox + test keys Profile Not listed — — pg_test_ sandbox keys — Sandbox platform for testing No Cheapest sandbox for building and testing Small vendor; check the platform list before you commit 10 SocialRails Creator $29 (27 connections), Agency $99 (225 connections) — per third-party comparison Not stated Connection Not listed — — API — Workspaces No Agencies needing many workspaces Unverified on the vendor page 11 Buffer API (new, May 2026) Included on every Buffer plan, including Free; no separate API fee Yes (Buffer Free plan limits apply) Buffer plan (per channel) Buffer's channel list Via Buffer Managed OAuth GraphQL API, CLI, developers.buffer.com MCP server Buffer's analytics/engagement depend on plan No People already on Buffer who want to script it Legacy REST API is being retired on 1 Feb 2027 (per Buffer's own announcement), so migrate old scripts 12 Publer API Business and Enterprise plans only; see publer.com/plans No Publer plan 13: Facebook, Instagram, X, LinkedIn, Pinterest, YouTube, TikTok, Google Business Profile, WordPress, Telegram, Mastodon, Threads, Bluesky Via Publer Managed REST; 100 requests / 2 min / user — Publer's analytics No Publer customers on Business plans Not for embedding in your own SaaS 13 Postiz Cloud Standard $29/mo (5 channels), Team $39 (10), Pro $49 (30), Ultimate $99 (100); annual cheaper 7-day trial (self-host is free) Channel; unlimited posts 30+ (see Table 2) Via Postiz Managed on cloud; your own apps if self-hosted API, CLI, webhooks on every plan MCP server on every plan, "Smart Agent" AI images/videos, clipping minutes, RSS auto-post, analytics Yes (AGPL-3.0), see Table 2 Builders who want the option to leave and self-host later Self-hosted app approvals are a paid optional service 14 Typefully Plan prices not visible in the page capture, so check the pricing page Has a free plan (not verified this week) Plan 5: X, LinkedIn, Threads, Bluesky, Mastodon Through Typefully Managed API (plan-dependent) — Thread writing, analytics No Text-first founders posting threads Text and thread focus; no TikTok/IG/YouTube 15 Hootsuite / Sprout Social / Sprinklr Enterprise sales No Seat + contract Full enterprise suites Included Managed Partner/enterprise APIs — Listening, approvals, CRM No Large marketing teams Overkill and slow to procure for an indie SaaS