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How to Connect a New MCP

This guide shows, step-by-step, how to add a Managed Connection Provider (MCP) and make its tools available to your Agents and Workflows.

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Step-by-step

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1) Open the MCPs area

Go to MCPs in the left navigation and click New MCP.

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2) Choose the integration

Select the MCP you want (e.g., Google Calendar, Notion, Airtable, Slack, etc.).

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3) Name and describe

Fill in:

  • MCP Name – a clear internal name (e.g., “Google Calendar – Sales”).

  • Description (optional) – what this integration is for (helps future you and teammates).

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4) Create a Connection (authentication)

Connections are the authentication layer shared by all tools inside the MCP.

  1. Click + Add Connection.

  2. Give the connection a Name and (optionally) a Description.

  3. Complete the authentication (OAuth sign-in, API key, etc.).

  4. Once successful, the connection will appear in the list.

Pro tip: use different connections for different teams or accounts, so permissions remain separated.

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5) Enable the tools you need

All tools start disabled. Click to activate only the ones your Agent should use. Hovering over a tool shows what it does (e.g., in Google Calendar: create event, find free slots, update event).

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6) Create the MCP

Click Create MCP. Your integration is now available in Endless.

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Make MCP tools available to an Agent

Unlike custom tools or tables, you don’t have to add each tool individually. Instead:

  1. Open Agents → Your Agent → MCPs.

  2. Activate the MCP you just created.

  3. Done ✅ — all selected tools inside that MCP are now automatically available for the Agent.

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Test internally (recommended)

Use the internal chat on the Agent’s page:

  • Example for Google Calendar MCP:

    • “Find me 3 free 30-minute slots this week.”

    • “Book a meeting with John tomorrow at 10am.”

The Agent will gather missing details (date, participants, duration) and then trigger the right tool.

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Troubleshooting

  • MCP created but no tools available? Make sure you enabled at least one tool before saving.

  • Auth completed but calls fail? Verify the connection’s

👉 With this, you now know how to create an MCP, connect it, activate its tools, and make them instantly available for your Agent.

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