Both can post from code now. They’re still different things.
Buffer is a place you go: a polished calendar, drafts, an AI assistant, analytics. It earned its reputation as the friendly scheduling app, and the recent GraphQL API and MCP server are real — you genuinely can drive it from code.
Social Fanout starts from the other end. Social Fanout stays API-first, while including a lightweight agenda as an optional reference client. Your software or agent can still do the posting directly. You connect each account once, then a single POST /v1/publish fans out to up to 20 targets and returns a receipt per target.1 The product is the API.
That’s why the table below isn’t a list of things Buffer “can’t do.” It mostly can. The real differences are narrower and more honest: a one-call fan-out with structured receipts, the freedom to self-host, agreement-backed hosted white-label, and flat pricing that doesn’t scale per channel.
Where each one actually wins
Compared on publicly documented capabilities, verified June 2026.1
| Capability | Fanout | B Buffer |
|---|---|---|
| Publish from an API | REST · POST /v1/publish | GraphQL API (public beta) |
| One call fans out to many targets, with receipts | ||
| Action MCP server for agents | YES · local | YES · hosted + local |
| Self-hostable | ||
| Hosted white-label / embed | YES · written agreement | NO · bring-your-own-account |
| Networks | 12 destination types | ~11 incl. GBP, Mastodon |
| Scheduling app, analytics & AI | lightweight agenda; no AI suite | |
| Pricing | Free · $10 / $19 / $49 flat | Per channel (~$5–10/ch) |
Read it both ways. Buffer’s calendar, analytics, AI assistant and broader network list are genuine advantages our lighter product surface doesn’t try to match. Our edge is the fan-out primitive, self-hosting, agreement-backed hosted white-label, and pricing that doesn’t climb with every channel.
A calendar to drive, or a request to send
B BUFFER
- Open the app, pick a channel
- Draft the post, attach media
- Preview per network, adjust
- Schedule on the calendar — or use the GraphQL API per channel
SOCIAL FANOUT
If a person is composing, Buffer’s calendar is a pleasant five minutes. If software composed it, you want the one request — fanned out, with a receipt for each target.
We’re not going to pretend
You want a finished product today — a content calendar, drafts, an AI assistant, and native analytics — and you’re happy for each user to bring their own Buffer account. Social Fanout includes a lightweight agenda and Post Flight Deck, but not a full campaign calendar, AI suite, or team workflow; it remains a building block first. Buffer is the stronger pick for a hands-on marketing team.
Plenty of teams run both: Buffer for human, campaign-driven posting, and Social Fanout the moment publishing has to happen inside their product or an agent’s workflow.
Notes & sources
- Reflects publicly documented features, verified June 2026, offered in good faith. Vendors change pricing and features often — check each vendor’s own site before deciding. Sources: buffer.com/api, developers.buffer.com, support.buffer.com, g2.com.