---
title: Connect Retool
description: Connect looot to a Retool Agent as an MCP server resource.
sidebar:
  label: Retool
---

<ClientHeader id="retool" />

:::note
These steps follow the client's own MCP documentation, linked in Sources below. looot has not tested them in this client yet. If a step fails, tell us on the [support page](/support).
:::

Retool Agents can call remote MCP servers. The server is stored as a Retool resource, reusable across agents. An agent can hold up to 20 MCP servers, with a 2 minute tool timeout and a 1 MB output cap.

Before you start you need a looot account. The runs you make spend the organization's balance, so
top up before your first paid run. See [Before your first run](/money#before-your-first-run).

## Steps

1. Open the agent's **Configuration** tab and click **Add new tool**, then **Connect to MCP Server**.
2. In **Select MCP Server**, click **Add new resource**.
3. Name it `looot` and enter the URL `https://api.looot.ai/mcp`.
4. Choose OAuth 2.0 (Authorization Code with PKCE) for authentication and save.
5. Pick the new resource, then sign in when Retool asks.

The server URL is `https://api.looot.ai/mcp`.

## Sign-in

Retool supports OAuth 2.0 (Authorization Code with PKCE by default, or Client Credentials), basic auth and bearer tokens. Use Authorization Code so you sign in on looot.ai and pick the organization to bill.

## Check it works

Ask Retool to call [`balance`](/mcp-tools/balance) or [`catalog_overview`](/mcp-tools/catalog-overview). Both are free. A working connection answers
with your available balance, or the catalog's categories and job counts.

## A first prompt to try

```text
Ask looot for my balance, then search its catalog for a tool that finds a work email from a name and company domain, and show me the price before running anything.
```

## Troubleshooting

- Only remote MCP servers work in Retool, which suits looot.
- A run longer than 2 minutes is cut off by Retool. Long async jobs return a run id; ask the agent to check the run later.
- Results over 1 MB are capped. Ask for fewer rows.
- Still stuck: see [Troubleshooting](/connect/troubleshooting).

## What you see when you connect

If the client uses browser sign-in, it opens looot.ai and shows the consent page: which organization to bill,
which scopes to grant and how long to stay connected. See [The consent page](/connect#the-consent-page).

## Sources

- Connect an MCP server to an agent: [docs.retool.com/agents/guides/tools/connect-to-mcp-server](https://docs.retool.com/agents/guides/tools/connect-to-mcp-server)
- Connect to an external MCP server: [docs.retool.com/data-sources/guides/connect/mcp](https://docs.retool.com/data-sources/guides/connect/mcp)

<Related />