Connector guide3-minute read14 MCP tools7 languages

How to Connect Buffer to Gemini — via MCP

Manage Buffer (social media scheduling: organizations, channels, posts, ideas) from any AI agent via Buffer's GraphQL API. 9 tools, API key.

HCBy HelpCode teamUpdated 3 min read Open-source on GitHub

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Buffer

Buffer

Manage Buffer (social media scheduling: organizations, channels, posts, ideas) from any AI agent via Buffer's GraphQL API. 9 tools, API key.

tools

14

Region

INTL

Category

Social Media

Authentication

Bearer Token

Required env vars

BUFFER_ACCESS_TOKEN
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    No credit card required
  • GDPR & SOC 2 ready
    EU data residency, audit logs
  • Open-source on GitHub
    Open source · AGPL-3.0
  • Works with ChatGPT, Claude, Gemini
    Any MCP-compatible client

Skip the install. Get this working in under 2 minutes.

Start a free trial on cloud.anythingmcp.com, add the Buffer in one click, then point your AI client (Claude, ChatGPT, Copilot or Cursor) at the generated MCP endpoint. No Docker, no git clone, zero engineering experience required.

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Summary

Manage Buffer (social media scheduling: organizations, channels, posts, ideas) from any AI agent via Buffer's GraphQL API. 9 tools, API key.

Try asking

Example prompts for Buffer

Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.

Buffer · live via MCP
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Claude is AI and can make mistakes. Please double-check responses.

💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Buffer, paste your credentials, mint an MCP API key — done. No Docker, no git clone, no local server.

Buffer + Gemini

Manage Buffer (social media scheduling: organizations, channels, posts, ideas) from any AI agent via Buffer's GraphQL API. 9 tools, API key.

Prerequisites

See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:

BUFFER_ACCESS_TOKEN

Step 1 — Get credentials

This connector wraps Buffer's public GraphQL API at https://api.buffer.com (docs: https://developers.buffer.com). It replaces the legacy api.bufferapp.com REST API; Buffer's API is available on every plan, including Free.

Setup:

  1. Sign in to Buffer and open Settings → API (https://publish.buffer.com/settings/api).
  2. Click Generate API Key (Personal Access tab). Free accounts can hold one key, paid plans up to five.
  3. Paste the key into BUFFER_ACCESS_TOKEN. It is sent as Authorization: Bearer <key> and acts as your own account: every organization and channel you can see in Buffer, with no per-organization scoping.

…(continued in the in-app connector instructions)

Step 2 — Install the adapter

curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d

Step 3 — Add the connector in Gemini

Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide shows YOUR_SERVER_ID.

Gemini CLI reads MCP servers from ~/.gemini/settings.json (or %APPDATA%\gemini\settings.json on Windows). Add:

{
  "mcpServers": {
    "anythingmcp": {
      "httpUrl": "https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID",
      "headers": { "X-API-Key": "YOUR_MCP_API_KEY" }
    }
  }
}
  1. Get your MCP API key from AnythingMCP → MCP Servers → your server → API keys.
  2. Save the file and restart gemini.
  3. Run /mcp inside the Gemini CLI — Buffer should be listed as available.
  4. Vertex AI Studio: pass https://cloud.anythingmcp.com/mcp/YOUR_SERVER_ID to the tools array of your request with the same X-API-Key header.

Available tools

ToolWhat it does
buffer_current_userReturn the authenticated Buffer account (id, email, name, timezone) with the organizations it belongs to
buffer_list_channelsList the connected social channels (X/Twitter, LinkedIn, Instagram, Facebook, Mastodon, Bluesky, Threads, TikTok, Pinterest, YouTube, …) of…
buffer_list_postsList posts of an organization, newest page first, optionally filtered by channel IDs and status
buffer_create_postCreate a post on ONE channel: add it to the queue, schedule it for a time, publish it now, or save it as a draft
buffer_update_postEdit a post that has not been sent yet: text, schedule, media or tags
buffer_delete_postDelete a post by ID
buffer_send_nowPublish a queued or scheduled post immediately instead of at its slot
buffer_list_ideasList the ideas (content not yet assigned to a channel) of an organization
buffer_create_ideaSave an idea in an organization: content you want to publish later, not yet tied to a channel or a time
buffer_graphql_schema_urlReturn the URL of the GraphQL schema (SDL)
buffer_graphql_schemaFetch the GraphQL schema: a summary, one type, a search slice or the full SDL
buffer_graphql_queryRun an arbitrary GraphQL query
buffer_graphql_mutationRun an arbitrary GraphQL mutation
buffer_graphql_subscriptionRun an arbitrary GraphQL subscription (if the API supports it)

FAQ

Does Gemini 1.5 Pro or 2.x support MCP? Yes — Gemini CLI ≥ 0.4 and Vertex AI tools API both accept MCP httpUrl connectors with custom headers.

Next steps

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