The best social media posting APIs in 2026, with the price read on each vendor's page

The eight social media posting APIs worth comparing are PostWire, Zernio, Post for Me, Upload-Post, Postiz, Blotato, Ayrshare and Mixpost. PostWire is free for one business and $9 a month for three, with the REST API and the hosted MCP server on the free plan, and it is the only one of the eight that writes a different native post for each network from one idea. Post for Me is $10 for 1,000 posts with unlimited accounts; Zernio gives the first two accounts free and charges per account after that; Upload-Post starts at $24, Postiz and Blotato at $29, Ayrshare at $149, and Mixpost is $299 once, self-hosted.

Every price below was read on the vendor's own page on Oct 21, 2026; the links are under Sources. We build PostWire, and its figures come from the plans that bill you. Each entry says where that tool wins as well as where PostWire goes further.

Side by side

APIEntry priceBilled perAPI and MCP1 business, 4 networks10 clients × 5 networks
PostWireFree · $9businessFree plan$9 (free with 2 networks)$29
ZernioFree (2 accounts) · $6connected accountFree tier$12$168
Post for Me$101,000 postsEvery plan$10$10
Upload-PostFree · $24profileEvery plan (MCP open source)$24$147
Postiz$29channelEvery plan$29$99
Blotato$29account + AI creditsPaid plans$29$499
Ayrshare$149social profileEvery plan$149$299
Mixpost$299 onceserver licensePro (self-hosted)$299 once$299 once

How each bill is reached: PostWire Starter covers 3 businesses and Pro 10, each with all of its networks. Zernio is 2 free accounts, then $6 for accounts 3-10 and $3 for 11-100 (50 accounts: 2 + 8 × $6 + 40 × $3). Post for Me meters posts, not accounts. Upload-Post Basic is 5 profiles and Advanced 75. Postiz Pro is 30 channels and Ultimate 100. Blotato Starter is 20 accounts, Creator 40, so 50 need Agency. Ayrshare Premium is 1 profile and Launch 10. Mixpost is one license for unlimited accounts on your server.

The eight APIs, one by one

PostWire

Best for: one business, or an agency that wants each network's post written for it
Free (1 business) · $9 for 3 · $29 for 10  ·  charged per business, every network included

A business is one brand with all of its networks, so ten client businesses on five networks each are $29 a month. One request writes a different native post per network (hook-first TikTok caption, YouTube title + tags, long LinkedIn post) and publishes them: REST API, hosted MCP server with OAuth sign-in, n8n node, or the dashboard. The free plan includes TikTok, the API and the MCP server, and needs no card. Clients can approve posts from a link without an account.

What it does not do: the free plan has 10 posts a month and 2 networks per post; X needs credits; Reddit and Pinterest are not live.

Source, read Oct 21, 2026

Zernio

Best for: paying only for the accounts you connect, with the first two free
2 accounts free · $6 each for accounts 3-10 · $3 each for 11-100 · $1 each from 101  ·  charged per connected account, no plans or seats

One rate card, every feature included: unlimited posts, inbox, analytics and the full API on the free accounts too. Ten accounts are $48 a month. Ad accounts and blogs (WordPress, Shopify, Wix) count as accounts.

Where Zernio wins: graduated pricing that reaches $1 an account at scale, and a free tier with no post cap. Where PostWire goes further: writes the post per network, counts a business instead of each account, and ships a hosted MCP server.

Source, read Oct 21, 2026

Post for Me

Best for: many accounts at a flat price per post
$10 a month for up to 1,000 successful posts · unlimited social accounts · Enterprise on request

One plan, metered on successful posts, with unlimited accounts and API keys. For an agency that connects fifty accounts and sends a few hundred posts a month it is the lowest bill on this page.

Where Post for Me wins: the cheapest bill for many accounts. Where PostWire goes further: a free plan, a native post per network from one idea, client approvals, and an MCP server listed in Claude's directory.

Source, read Oct 21, 2026

Upload-Post

Best for: uploading one finished video everywhere at a fixed price
Free (2 profiles, 10 uploads, without TikTok) · $24 for 5 · $50 for 25 · $147 for 75 · $438 for 225  ·  charged per profile, unlimited uploads on paid plans

Built around uploading media to every network at once, with an open-source MCP server (hosted or npx @upload-post/mcp) and a documented REST API.

Where Upload-Post wins: unlimited uploads on every paid plan and an MIT-licensed MCP server. Where PostWire goes further: TikTok on the free plan, a post written per network, and a business-based price ($29 for 10 businesses against $147 for 75 profiles).

Source, read Oct 21, 2026

Postiz

Best for: open source you can self-host, with a cloud from $29
$29 for 5 channels · $39 for 10 · $49 for 30 · $99 for 100  ·  charged per channel, unlimited posts, 7-day trial

Every plan includes the MCP server, CLI and API. The code is open source and can be self-hosted; the cloud plans are the ones above.

Where Postiz wins: open source, and 100 channels for $99. Where PostWire goes further: a free plan with no time limit, per-network writing, and $29 for 10 businesses with all of their channels.

Source, read Oct 21, 2026

Blotato

Best for: AI image and video generation next to publishing
$29 for 20 accounts · $97 for 40 · $499 Agency  ·  charged per account plus AI credits, 7-day trial without API

Credits cover AI image and video generation; writing, scheduling and API calls are unlimited. The API and MCP are on every paid plan and not on the trial.

Where Blotato wins: built-in image and video generation. Where PostWire goes further: the API and MCP on the free plan, and $29 for ten businesses where Blotato's 50-account setup is the $499 plan.

Source, read Oct 21, 2026

Ayrshare

Best for: a white-label platform your own users post through
$149 for 1 profile (Premium) · $299 for 10 (Launch, 28-day trial) · $599 for 30 (Business) · Max Pack +$300  ·  charged per social profile

A mature API aimed at SaaS companies that resell posting to their users, with analytics, comment management and an ads add-on. Enterprise from 300 profiles.

Where Ayrshare wins: scope for a platform with thousands of end users. Where PostWire goes further: a free plan, $9 to start, and the post written per network included instead of a $300 add-on.

Source, read Oct 21, 2026

Mixpost

Best for: owning the code on your own server, paid once
Lite free and open source (Facebook Pages, Mastodon, X) · Pro $299 one-time · Enterprise $1,199 one-time  ·  self-hosted, unlimited accounts and workspaces, 1 year of updates

Pro installs the full source on one domain with every network, multi-tenant workspaces, API, MCP and webhooks. No monthly fee; renewing the license is optional and only affects updates.

Where Mixpost wins: no recurring bill and full control of the code. Where PostWire goes further: nothing to host, TikTok and YouTube audits already passed, and a hosted MCP server any agent signs in to.

Source, read Oct 21, 2026

How to choose in one minute

One brand, you want the post written for each network: PostWire, free, then $9. Many accounts, few posts, lowest bill: Post for Me at $10. Pay per account with two free: Zernio. Finished videos uploaded everywhere, MIT MCP server: Upload-Post. Open source with a cloud option: Postiz. AI images and video next to publishing: Blotato. A platform your own users post through: Ayrshare. Own the code, pay once: Mixpost.

For developers: the first call on PostWire

The free plan includes the REST API and the hosted MCP server, so the first call costs nothing: POST /api/generate with an idea and a list of networks returns a draft per network, and POST /api/post publishes them; from an agent, generate_posts and post_to_social do the same in two tool calls. Start with the API reference, the MCP server or the free social media posting API guide. TikTok, YouTube, Instagram and LinkedIn audits are already passed, so there is no app review on your side.

Start free — 1 business, API and MCP included, no card

Questions people ask

What is the best social media posting API in 2026?
It depends on what you count. For one business that wants a native post written per network: PostWire (free for 1 business, $9 for 3, REST API and MCP server on the free plan). For many accounts at a flat price per post: Post for Me ($10 a month for 1,000 posts, unlimited accounts). For a per-account rate card with 2 accounts free: Zernio. For a self-hosted codebase you own: Mixpost ($299 one-time) or Postiz (open source, cloud from $29). For a white-label platform with analytics: Ayrshare (from $149). Prices read on each vendor's page on Oct 21, 2026.
Which social media API has a free plan?
PostWire (1 business, 10 posts a month, 2 networks per post, TikTok included, API and MCP, no card), Zernio (the first 2 connected accounts are free with the full API) and Upload-Post (2 profiles, 10 uploads a month, without TikTok). Postiz and Blotato have 7-day trials; Blotato's trial does not include the API. Ayrshare has no free plan.
What is the cheapest social media posting API?
For one business on four networks on Oct 21, 2026: PostWire $9 (or free with 2 networks per post), Post for Me $10, Zernio $12 (2 free accounts plus 2 at $6), Upload-Post $24, Postiz $29, Blotato $29, Ayrshare $149. Mixpost Pro is $299 once, self-hosted, so it is cheapest after about a year if you run your own server.
Which posting API works with TikTok?
All eight publish to TikTok on paid plans. On free plans, PostWire and Zernio include TikTok; Upload-Post's free plan leaves TikTok out. Every one of them has passed TikTok's Content Posting API audit, so you post through their app instead of running your own audit.
Which social media API can an AI agent use through MCP?
PostWire (hosted MCP at postwire.io/api/mcp with OAuth or an API key, listed in Claude's connector directory), Upload-Post (open-source MCP, hosted or npx), Postiz (MCP on every plan), Blotato (MCP on paid plans) and Mixpost Pro (MCP included). Post for Me links to an MCP guide; Zernio and Ayrshare document a REST API.
Which API is best for an agency with 10 clients?
Ten clients on five networks each (50 accounts) on Oct 21, 2026: Post for Me $10 (per post, unlimited accounts), PostWire $29 (Pro, 10 businesses), Zernio $168 (graduated per account), Upload-Post $147 (75 profiles), Postiz $99 (100 channels), Ayrshare $299 (Launch, 10 profiles), Blotato $499 (Agency). Mixpost is $299 once. Post for Me is the cheapest bill; PostWire is the cheapest that also writes each network's post and gives clients an approval link.

Sources

Read on Oct 21, 2026. Prices change; when they do, the vendor's page is right.

One-on-one comparisons: vs Ayrshare · vs Upload-Post · vs Blotato · vs Postiz · Ayrshare alternatives · all of them