Compare
Social media posting APIs compared
Which social posting API should you use instead of Ayrshare, Zernio or Buffer? A comparison for developers and SaaS teams that post on behalf of their users, with prices from each vendor's pricing page.
How to choose a posting API
Networks covered
List the networks your users post to today and next year, then check each API's platform list and per-network limits.
REST and MCP access
A REST API serves your backend; an MCP server lets AI agents and assistants post through the same account. Check which plans include each.
How pricing scales with accounts
Posting on behalf of users means paying per connected account, per profile or per plan tier. Price the plan at the account count you expect in a year, not today.
Free plan
A free plan lets you build and test the integration before paying. A free trial ends after a set number of days.
Comparison
| API | Starting price | Free plan | How price scales |
|---|---|---|---|
| Ampost | $0 (Free); paid from $29 a month | Yes: 3 social accounts and 50 posts per month, with the REST API and MCP | Pro $29 a month (10 social accounts); Max $49 a month (25 social accounts); Scale $99 a month (100 social accounts included, then $1 per account / month). REST API and MCP on every plan. |
| Ayrshare | From $149 a month | No; 28-day free trial on the Launch plan | Plans at $149, $299 and from $599 a month; Business adds a price per profile above 30 |
| Zernio | Starting at $0 | Yes: first 2 accounts | Per connected account a month: accounts 3–10 at $6, 11–100 at $3, then $1 |
| Upload-Post | Basic $24 a month ($16 a month billed annually) | Yes: 2 profiles, 10 uploads a month | By profiles per plan: 5 on Basic, up to 225 on Business ($438 a month) |
| Buffer | $0 (Free); paid from $5 a month per channel | Yes: 10 scheduled posts per channel, 1 API key | Per channel: $5 (Essentials) or $10 (Team) a month |
| Postiz | $29 a month after a 7-day trial for $0 | No hosted free plan; an open-source edition can be self-hosted | Plans from $29 to $99 a month |
| Blotato | $29 a month | No | Plans at $29, $97 and $499 a month |
Prices in USD from each vendor's pricing page, checked on October 22, 2026. Sources: Ampost, Ayrshare, Zernio, Upload-Post, Buffer, Postiz, Blotato.
Where Ampost fits
- One REST API with a matching MCP tool for every operation, so your backend and your AI agents use the same calls.
- Account connection handled for you: OAuth for most networks, a hosted credential form for Telegram and Bluesky.
- Posts are validated against each network's rules before they publish.
- Eleven networks: Instagram, Facebook, LinkedIn, TikTok, Threads, X, YouTube, Pinterest, Bluesky, Telegram and Discord. X is on the Max and Scale plans.
- A free plan with the REST API and MCP included: 3 social accounts and 50 posts per month.
When another tool fits better
Buffer
For teams that want a scheduler without writing code.
Postiz
For teams that want to self-host an open-source tool.
Next step
Try it
Read the API docs, connect Ampost to your AI agent over MCP, or compare the plans on the pricing page.