Loops MCP Server

io.usefulapi/loops

answering

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

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

Uptime history 40 hours of history · worst hour 0%

40 hours agonow

25.3%

Uptime 24h

23 of 91 checks

Tools

read from the server

177 ms

Response time

average over 24h

Stars

last commit 1 Aug 2026

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.

Claude Code Claude Desktop Codex Cursor VS Code

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

URL	Transport	State	Latency	Checked
https://loops.usefulapi.io/mcp	streamable-http	answering	208 ms	7 min ago

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 23 of 91 checks got a reply (25.3%), average response time 177 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 177 ms on average, which is faster than 67% 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.