Both PostWire and bundle.social are social media APIs with an MCP server for AI agents. Where PostWire is better: it writes a native post per network from one prompt, its MCP server is hosted with OAuth 2.1 sign-in (a Claude connector, no local install), and it bills per business — 10 businesses for $29 a month, against $100 for bundle.social Pro.
Hosted at postwire.io/api/mcp — OAuth 2.1 sign-in or API key (also postwire-mcp on npm)
Local server (npx bundlesocial-mcp) with an API key; a hosted one is "planned"
Free tier
Yes — 1 brand (every network connects), 10 posts a month, 2 networks per post, no card
Yes — 3 accounts, 20 posts a month
Pricing model
Per brand (one business, all its networks)
Per organization, by post volume
First paid plan
$19 a month (3 brands); ten businesses for $29
Pro, $100 a month (10,000 posts)
Native post per platform (AI)
Smart Distribute — one prompt, native per network
Not found on its pages
X (Twitter)
On paid plans, X credits included every month (Pro: 150)
Billed separately: $0.015 a post, $0.20 with a link
Telegram
Yes
Not listed
Refund
14 days on paid plans
None published on its pricing page
Where PostWire is better
A hosted MCP server you add by signing in — Claude, ChatGPT, Cursor and Codex connect with OAuth 2.1; nothing to install. bundle.social's MCP runs locally with npx and an API key.
Per-brand pricing — ten businesses is one $29/mo plan, $19 for three; bundle.social's first paid plan is $100 a month.
Free, no card — every network connects to your one brand, and you can test posting before paying a cent.
Connect once, fan out — one post_to_social call publishes to every connected network.
Smart Distribute — one prompt becomes the best native post per platform (SEO title for YouTube, hook-first for TikTok, link-in-comment for LinkedIn), not the same text everywhere; included free.
Who PostWire is for
Agencies and freelancers running several businesses, who want one flat price per business and posts that wait for a client's approval (from a link, no account, on Pro) before they go out.
Builders of AI agents who want the agent to get a native post per network back from one tool call, through a hosted MCP server.
n8n, Make and API users who want the writing and the publishing in the same two calls, with signed webhooks for each network's result.
PostWire vs bundle.social — which is better for AI agents?
PostWire writes a native post for each network from one prompt and publishes it; bundle.social publishes the text you send. PostWire's MCP server is hosted and signs in with OAuth 2.1 (or an API key), so it works as a Claude connector; bundle.social's runs locally with npx and an API key. And PostWire bills per business: 10 businesses are $29 a month, against $100 for bundle.social Pro.
Does PostWire have a free tier?
Yes — 1 brand (one business; every network connects free, 2 per post) and 10 posts/month, no credit card, so you can test the MCP server first.
Do both have an MCP server?
Yes, both expose a Model Context Protocol server for agents. PostWire's is hosted and on npm as postwire-mcp; it authenticates with an API key or OAuth 2.1 sign-in.
What does PostWire cost?
Free $0 (1 brand), Starter $19 (3), Pro $29 (10), Agency $99 (50), Scale $299 (200) — per brand, not per profile, with a 14-day refund on paid plans.
What's a good bundle.social alternative with an MCP server?
PostWire publishes to 10 networks from one API (X on paid plans) and adds a hosted MCP server plus native-per-platform generation, with a free tier and per-brand pricing.
Why should I choose PostWire over direct platform APIs?
One integration instead of ten, managed OAuth, plus native-per-platform drafting and an MCP server you'd otherwise build yourself.
Is this only for developers?
No. PostWire works via API for developers and via MCP/plain language for AI-agent and non-technical users.