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MCP

Inline MCP lets agents read and write in approved Inline spaces with OAuth consent. Use it to find context, summarize conversations, create threads, and send messages or files.

Connect an agent

Choose your client, then complete Inline sign-in and consent in the browser.

Terminal
codex mcp add inline --url https://mcp.inline.chat/mcp/v2

In ChatGPT Apps or another MCP client, add a remote Streamable HTTP server and paste the URL above. The client should discover OAuth automatically.

What agents can do

  • Find spaces, people, conversations, and messages.
  • Read recent, unread, or surrounding message context.
  • Create conversations and send text or media.
  • Inspect the current account, scopes, and allowed chat context.

Agents only see spaces selected during consent. Access to DMs and home threads is granted separately, and read/write scopes are enforced on every call.

Common issues

  • Sign-in expired: reconnect the server and complete OAuth again.
  • Missing conversations: reconnect and expand the spaces or conversation types allowed during consent.
  • Write is blocked: reconnect and grant write access.
  • Session not found: reconnect so the client creates a new session.

Reference