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PostFiber for Claude Cowork

Made by Anthropic

Claude Cowork uses the custom connectors of your Claude account, so you add PostFiber once and sign in with OAuth.

Connect over MCP

MCP server address

https://www.postfiber.com/mcp

You sign in to PostFiber and choose the brand Claude Cowork may work in. No API key is needed.

  1. In Claude, open Customize, then Connectors. Cowork uses the connectors you add there.
  2. Choose Add, then Add custom connector.
  3. Give it a name such as PostFiber, paste the server address and confirm.
  4. Choose Connect. PostFiber opens its sign-in page: choose the brand Cowork may work in and authorize.

On Team and Enterprise plans an owner adds the connector first, under Organization settings and then Connectors, and each member connects it with their own PostFiber account.

Try it

  • List my connected channels.
  • Draft a post about our launch for tomorrow at 9:00 and save it as a draft.
  • Show me what is scheduled for this week.

Keep a person in the loop. An agent works with the permissions of the key, or of the person who connected it. Ask it to save drafts or schedule posts, look at the calendar before anything goes out, and give each key only the project and the permissions it needs. A key or a connected app you revoke stops working at once.

Read the documentation of Claude Cowork MCP server guide The command line and the skill