PostWire vs bundle.social (2026)

Both PostWire and bundle.social are social media APIs that ship a real MCP server for AI agents — so an agent can publish posts as tool calls. The honest difference: PostWire leads on a free tier (no card) and flat per-brand pricing, ideal for solo builders and agencies; bundle.social leads on broad platform coverage plus a CLI and TypeScript SDK. Below, a fair side-by-side.

Last updated June 2026. Verify each provider's current plans and platform list before deciding.

Side-by-side

 PostWirebundle.social
MCP server for agentsYes — postwire-mcp (npm)Yes — official MCP server
Free tierYes — 1 brand, 30 posts, no cardCheck current plans
Pricing modelFlat per brandSubscription tiers
Agency value50 brands for $99/moDepends on plan
Extra interfacesREST API + MCPREST + MCP + CLI + SDK
Platform breadth10 networks (4 live now, rest in approval)14+ platforms
Best forStart-free + flat cost per brandWidest coverage + SDK/CLI today

We list bundle.social's strengths honestly — it's a capable product. PostWire's wedge is being free to start and flat per brand, built MCP-first.

Where PostWire wins

Where bundle.social may fit better

Post with PostWire (REST + MCP)

curl -X POST https://postwire.io/api/post \
  -H "Authorization: Bearer $POSTWIRE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"platforms":["bluesky","telegram"],"text":"Shipping today 🚀"}'
{
  "mcpServers": {
    "postwire": { "command": "npx", "args": ["-y","postwire-mcp"], "env": { "POSTWIRE_API_KEY": "pw_live_xxx" } }
  }
}
Start free — 1 brand, 30 posts →

FAQ

PostWire vs bundle.social — which is better for AI agents?
Both ship a real MCP server, so both work. PostWire wins on a free tier (no card) and flat per-brand pricing; bundle.social wins on broad coverage + CLI/SDK. Start-free and flat cost → PostWire; widest list or SDK today → bundle.social.
Does PostWire have a free tier?
Yes — 1 brand and 30 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 on npm as postwire-mcp.
What does PostWire cost?
Free $0, Starter $9, Pro $29, Agency $99 (50 brands), Scale $299 — flat per brand, not per profile.

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