Buffer API Pricing in 2026: What Developers Actually Pay

The common assumption is that Buffer gates API access behind an expensive top tier, the way several competitors in this space still do. That assumption is out of date. Buffer relaunched its API as GraphQL in early 2026 and, as of the current pricing page, includes API access on every plan — Free, Essentials, and Team. Verified against Buffer's own pricing page in September 2026.

What actually gates you isn't the plan tier. It's a fixed monthly request cap that doesn't scale with how many channels you're paying to connect.

#Buffer's Current Plans and API Limits

Additional shared limits apply regardless of plan: 100 requests per 15-minute window on every tier, and a 24-hour ceiling of 250 requests on Free/Essentials or 500 on Team. Scheduled posting itself is subject to a fair-use cap of 5,000 posts per channel.

#Where the Real Cost Shows Up

Here's the detail that matters if you're building something that calls Buffer's API on behalf of many customer channels: the request cap is fixed per plan, not per channel.

Say you're running a SaaS product on Essentials with 50 connected channels. Your monthly bill is $5 × 50 = $250. Your API request budget is still 7,500 requests/month — the same number as someone on Essentials with 5 channels. If your integration polls channel status, checks post results, or triggers scheduling per-channel with any regularity, 50 channels sharing 7,500 requests runs out fast. Upgrading to Team doubles the price per channel and only doubles the request cap to 15,000 — the ceiling grows slower than a typical multi-tenant workload does.

This is the opposite failure mode from Ayrshare's per-profile pricing, where cost scales directly with customer count but request volume isn't the constraint. With Buffer, the sticker price scales with channels; the thing that actually throttles a growing integration is the request ceiling, which doesn't move with what you're paying.

#Buffer's Official MCP Server

Buffer shipped an official MCP server in May 2026, at mcp.buffer.com/mcp, built on the same GraphQL API. It's included on every plan, including Free — no separate paywall for MCP access. You connect it as a custom connector in Claude, authenticate with OAuth (no API key to paste), and it can create, schedule, and manage posts across your connected channels directly from a conversation, plus save ideas to Buffer's ideas board.

The limitation: it only works inside a conversation you're actively driving. There's no unattended scheduled execution — nothing runs the MCP server on a timer the way a cron-triggered REST integration would. If your use case is "an agent posts when I ask it to," Buffer's MCP server fits. If it's "something posts automatically every day without a human present," you're back to the REST API with your own scheduler.

#Buffer vs. Schedule & Chill

Buffer's per-channel pricing is straightforward to model for a small number of channels. Where it gets expensive is scale: connecting many channels multiplies the monthly bill linearly while the API request budget stays capped by plan, not by channel count. See the full developer comparison across seven providers for how this stacks up against Ayrshare, Postiz, Publer, Bundle.social and Hootsuite.

Schedule & Chill is free right now — REST API and an MCP server that publishes, included, no per-channel fee and no separate request cap to hit. See the pricing page.

#What to Check Before Building on Buffer's API

1. Model your request volume against the fixed cap, not just the channel price. If your integration is chatty — polling for status, checking analytics, retrying failed posts — the 7,500/month Essentials cap can bind well before the per-channel cost does.
2. Decide if MCP's conversation-only model fits your workflow. It's genuinely useful for ad hoc, human-initiated posting through Claude. It does not replace a scheduled publishing pipeline.
3. Check the fair-use post cap per channel (5,000/month) if you're running high-frequency accounts — it's separate from the API request cap and easy to miss.

For a direct price comparison at real account counts rather than list prices, see The Cheapest Ayrshare Alternative in 2026, which prices Buffer alongside five other providers at 5 and 25 connected accounts.

#Frequently Asked Questions

Does Buffer's API require a paid plan? No, as of the 2026 GraphQL API relaunch. Buffer's free plan includes API access with 1 API key and 3,000 requests/month. This is a change from the older assumption that API access was reserved for paid tiers — verify against Buffer's current pricing page before assuming otherwise.

What is Buffer's API rate limit? Rate limits scale by plan: 3,000 requests/month on Free, 7,500 on Essentials, and 15,000 on Team, with a shared cap of 100 requests per 15-minute window on every tier. These caps are fixed per account, not per connected channel.

Does Buffer have an MCP server for AI agents? Yes. Buffer's official MCP server launched in May 2026 at mcp.buffer.com/mcp and is included on every plan. It can create and schedule real posts, not just describe the API, but only within an active conversation — it doesn't run unattended on a schedule.

Is Buffer's API cheaper than Ayrshare's for a multi-channel product? At low channel counts, yes — Buffer's per-channel pricing on Essentials ($5/channel) undercuts Ayrshare's per-profile model in most scenarios. At high channel counts, check Buffer's fixed API request cap against your actual call volume before assuming the per-channel price is the whole story.