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What is MCP?

The Model Context Protocol is an open standard that lets AI clients (Claude Desktop, claude.ai web, Claude Code, Cursor, and others) call tools on remote servers. Postbreeze publishes an MCP server at https://mcp.postbreeze.ai/mcp that wraps the same REST API documented on this site. Postbreeze’s MCP server supports two authentication paths:
  • API keys (pb_live_…) — best for Claude Desktop, Claude Code, Cursor, scripts, CI jobs. Paste a key into your client’s config.
  • OAuth 2.1 — best for claude.ai’s web “Custom Connectors”. One click on the connect button, a consent screen on postbreeze.ai, then you’re connected. No keys to copy or rotate.
Both paths produce the same tool surface and the same per-workspace scoping — pick whichever matches your client.

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claude.ai (web) — Custom Connectors via OAuth

1

Open claude.ai connector settings

On claude.ai, go to Settings → Connectors and click Add Custom Connector.
2

Paste the server URL

Name: Postbreeze. URL: https://mcp.postbreeze.ai/mcp. Click Add.
3

Sign in to Postbreeze

claude.ai redirects to postbreeze.ai. Sign in if you’re not already. You’ll land on the consent page.
4

Pick a workspace and click Allow

Choose which workspace claude.ai should be able to act on. (Each grant is bound to exactly one workspace — to give claude.ai access to a second workspace, repeat this flow.)
5

You're connected

The connector status flips to Connected in claude.ai. Open a new conversation — the Postbreeze tools appear in the tool picker. Try “What posts do I have scheduled this week in Postbreeze?”
To revoke access later: postbreeze.ai → Settings → Connected apps → Revoke. The next claude.ai tool call returns 401 and claude.ai prompts you to reconnect.

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Claude Desktop

1

Create an API key

Settings → Developers → New API key. Name it “Claude Desktop”. Copy the pb_live_… value.
2

Edit your Claude Desktop config

Open Settings → Developer → Edit Config in Claude Desktop. Add the postbreeze entry:
3

Restart Claude Desktop

The Postbreeze tools (list_posts, schedule_post, etc.) appear in the tool picker. Try asking “What posts do I have scheduled this week?”

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Claude Code

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Cursor

In Cursor’s Settings → MCP, add a new server with type HTTP and the URL https://mcp.postbreeze.ai/mcp. Add the Authorization header with your Bearer pb_live_… token.

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What can the LLM do?

See the Tools page for the full v1 surface — list_posts, schedule_post, update_post, cancel_post, list_connected_accounts, list_media, ingest_media_from_url, list_comments, reply_to_comment, and per-platform analytics.