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How to connect Buffer to Claude

Connect Claude Web, Desktop and Cowork to Buffer MCP. Schedule linkedin posts for next week, list queued buffer posts by channel, and more using natural language, with authentication handled for you.

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Buffer is a social media management platform for planning, creating, scheduling, and publishing posts across connected channels. It helps teams keep content organized and publish consistently without jumping between social apps.

11 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Buffer account to Claude via Composio Connect, enabling it to schedule LinkedIn posts for next week, list queued Buffer posts by channel, draft tweets for product launch, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Buffer with

ChatGPTHermesAtomic Agent

Connecting Buffer to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Buffer account

Back in Claude, ask it to connect to Buffer or give it any Buffer-related task.

For example, ask Claude to:

  • "Schedule LinkedIn posts for next week"
  • "List queued Buffer posts by channel"
  • "Draft tweets for product launch"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Buffer account is ready to use.

What is the Buffer Claude Connector, and what's possible with it?

The Buffer MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Buffer account. It provides structured and secure access so your agent can perform Buffer operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Buffer?

The connector can show as connected, but Claude must use it in each Buffer conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Buffer again.

2. Why does Claude show an MCP server error before Buffer connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Buffer.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Buffer.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Buffer authorization link not work?

The Composio connector is one server. Your Buffer account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Buffer connection.
  • Composio creates a fresh Buffer authorization link.
  • Open that link in your browser and finish the Buffer sign-in.

4. Why do Buffer actions fail after they worked before?

The Buffer connection can expire or lose permission.

  • Ask Claude to inspect the Buffer connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Buffer account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Buffer.
  • If the action still fails with a permission error, check that the connected account has that permission in Buffer itself.

5. How do I switch to a different Buffer account?

Claude can manage the Buffer connection for you.

  • Ask Claude to disconnect or delete the current Buffer account.
  • Ask Claude to connect Buffer again.
  • Open the new Composio authorization link for Buffer.
  • Sign in with the other Buffer account in the browser.
  • After the account connects, ask Claude to retry the Buffer task.

6. Why is my Buffer connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Buffer connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Buffer tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Buffer.
TOOLS

Supported Tools

Every Buffer action and event your agent gets out of the box.

Create Idea

Create a persistent content idea in a Buffer organization.

Create Post Draft

Create an internal text-post draft for exactly one Buffer channel.

Delete Post

Permanently delete a Buffer post by ID, including a draft created for cleanup.

Delete Post Template

Delete a writable private Buffer template, or an internal template when the connected user is an organization admin or owner.

Get Account Context

Return the connected Buffer account, its organizations, and the accessible social channels in each organization so an agent can discover the IDs required by other tools.

List Idea Groups

List the idea workflow groups in a Buffer organization so an agent can discover group IDs for filtering or idea creation.

List Ideas

List content ideas in a Buffer organization, optionally filtering by explicit idea groups or grouped versus ungrouped workflow membership.

List Posts

List and filter posts in a Buffer organization without requesting OAuth-inaccessible analytics fields.

List Post Templates

List Buffer public templates and templates visible to the connected user in an organization, optionally filtered by visibility.

Publish Posts

Queue, schedule, or immediately publish the same text post to one to 10 Buffer channels.

Save Post Template

Create a private or internal Buffer post template, or update an existing writable template when template_id is supplied.

FRAMEWORKS

How to build Buffer MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Buffer MCP with ChatGPT

Hermes logo

Hermes

Use Buffer MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Buffer MCP with Atomic Agent

FAQ

Frequently asked questions

With a standalone Buffer MCP server, the agents and LLMs can only access a fixed set of Buffer tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Buffer and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Buffer tools.

Yes, absolutely. You can configure which Buffer scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Buffer data and credentials are handled as safely as possible.

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