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Loops MCP Server

answering

Loops is answering right now. Last checked 7 min ago. It exposes 10 tools. Last commit 1 Sep 2026.

Manage Loops contacts, mailing lists, and transactional/event emails.

Uptime history 47 days of history · worst day 11%
47 days agonow
100.0%
Uptime 24h
91 of 91 checks
10
Tools
read from the server
165 ms
Response time
average over 24h
0
Stars
last commit 1 Sep 2026

What the code does

We read the source, 20 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

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Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

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Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

run in your terminal
claude mcp add loops --transport http https://loops.usefulapi.io/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "loops": {
      "url": "https://loops.usefulapi.io/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.loops]
url = "https://loops.usefulapi.io/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "loops": {
      "url": "https://loops.usefulapi.io/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "loops": {
      "url": "https://loops.usefulapi.io/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

loops
loops_create_contact
Creates a contact in Loops (additive). Loops API: POST /v1/contacts/create.
loops_create_contact_property
Creates a custom contact property/field (additive schema change). Loops API: POST /v1/contacts/properties.
loops_delete_contact
Deletes a contact from Loops. Destructive. Supply email OR userId. Loops API: POST /v1/contacts/delete.
loops_find_contact
Find a contact by email or userId (supply at least one). Loops API: GET /v1/contacts/find.
loops_list_contact_properties
List contact fields / custom properties defined in Loops. Loops API: GET /v1/contacts/properties.
loops_list_mailing_lists
List all mailing lists in the Loops account (id + name). Loops API: GET /v1/lists.
loops_send_event
Sends an event to Loops for a contact — TRIGGERS any automations/loops subscribed to this event. Loops API: POST /v1/events/send.
loops_send_transactional
SENDS a real transactional email via a Loops template. This dispatches an actual email to the recipient. Loops API: POST /v1/transactional.
loops_test_api_key
Verify the configured Loops API key and return the team name — a good first call. Loops API: GET /v1/api-key.
loops_update_contact
Updates (or creates) a contact by email/userId. Upserts — creates the contact if not found. Loops API: PUT /v1/contacts/update.

Endpoints

URLTransportStateLatencyChecked
https://loops.usefulapi.io/mcp streamable-http answering 44 ms 7 min ago

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Loops — questions

Answers built from our own checks of this server.

What can Loops do?
It exposes 10 tools, read directly from the server on our last check. Among them: loops_create_contact, loops_create_contact_property, loops_delete_contact, loops_find_contact, loops_list_contact_properties, loops_list_mailing_lists and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Loops working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 165 ms. The bar chart above shows every period we have measured.
How do I connect Loops?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Loops need an API key?
No. Loops completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Loops?
It answers our handshake in 165 ms on average, which is faster than 74% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Loops open source?
Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.