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Loops

Loops MCP Server

Yes. Loops ships an official first-party MCP server at mcp.loops.so: a remote streamable HTTP endpoint with browser OAuth, exposing contacts, mailing lists, campaigns, transactional email and events to an agent.

OFFICIAL MCP✓ alivePublic APIOpenAPI specSDKs: node, go, ruby, php
Open MCP pageTry Loops
MCP status verified 2026-08-14Agent-readiness 8/10
Data from Buddy's database, auto-rechecked weekly

What is the Loops MCP server?

Loops runs an official first-party MCP server at mcp.loops.so, live since 2026-08-13 and listed in the official MCP registry as io.github.loops-so/loops with active status. It is remote and streamable HTTP, so there is no package to install and nothing to self-host: you point a client at the URL and sign in through the browser. An unauthenticated call to the endpoint returns a 401, which is exactly what a real auth-gated server should do.

The REST API at loops.so/docs is still the deeper surface and Loops still publishes CLI skills for coding agents, so the API path has not gone anywhere. What the server changes is the amount of glue between an agent and the account: connect once and contacts, mailing lists, campaigns, transactional email and events are available as tools, rather than something you wire up per endpoint with a key.

Setup is a one-liner in Claude Code (claude mcp add loops https://mcp.loops.so --scope user --transport http) and a listed connector in Claude Desktop under Settings, Connectors, Browse connectors. Both routes finish with a browser sign-in to Loops rather than a pasted key, which is the part that makes this practical to hand to a non-developer.

For the rest of the picture see the Loops review or full pricing breakdown.

Inside Claude / Cursor / Codex

What you can build with the Loops MCP

Illustrative workflow examples. Exact tool names, parameters, and outputs come from Loops's MCP server schema, so check the docs for the live surface.

loops-mcplive
>What's the open rate on my last 5 campaigns?
●loops.list_campaigns({ limit: 5 })
LAST 5 CAMPAIGNS · OPEN RATE
Black Friday Teaser42.1%
Product launch38.5%
Weekly digest #1227.0%
Welcome flow step 261.3%
Re-engagement attempt9.8%
Suggest A/B subject lines for the bottom two?
loops-mcplive
>Build a 3-email welcome series for new ebook subscribers
●loops.create_automation({ trigger: "list_added" })
AUTOMATION CREATED · 3 EMAILS
Day 0ebook delivery + intro
Day 2case study + soft CTA
Day 5product demo + 14-day trial
Review drafts before activation?
loops-mcplive
>Which segments are growing fastest this quarter?
●loops.segment_growth({ period: "Q4" })
TOP 3 GROWING SEGMENTS
Trial → Paid converters+187%
EU subscribers+62%
Re-engaged churned+34%
TMB SCORE FOR LoopsMCP: OfficialAgent fit: 8/10
Read review →

Access, auth, and limits

Authorization is browser OAuth. Loops supports clients that authenticate with Client ID Metadata Documents, and preregistered clients such as Claude connect directly. There is no API key to paste into a config file for the MCP path, though the REST API still uses a Loops API key if you build against it instead.

The surface covers contacts, mailing lists, transactional email, events and the rest of the Loops API. Transactional email and campaigns are both write paths that reach real inboxes, so whether Loops splits read and write consent the way Customer.io does matters more here than the tool count. Loops does not publish that split, or per-plan gating and rate limits for the server, so confirm those in your own account before you let an agent send on your domain.

How to connect Loops MCP to Claude Desktop

Add this block to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows), then restart Claude Desktop. Cursor and Codex use a similar schema.

{
  "mcpServers": {
    "loops": {
      "command": "npx",
      "args": ["mcp-remote", "<YOUR_MCP_URL>"]
    }
  }
}
// HTTP-transport MCP. Get your <YOUR_MCP_URL> from the vendor dashboard.
// Server source: https://mcp.loops.so
// Claude Code (one-liner): claude mcp add loops <YOUR_MCP_URL> --transport http

Some MCP servers require an API key. Check the source page for setup: mcp.loops.so.

Does Loops MCP cost extra?

Included with subscription

Loops ships an official MCP server that uses your existing subscription credentials.

  • No separate MCP licence to buy. You pay for your Loops plan, the MCP server queries that account.
  • Whether it's gated to a specific tier wasn't extracted automatically — verify the access requirements on the MCP page or pricing docs.

Loops also publishes a REST API

Loops publishes an API, but per-tier gating wasn't extracted automatically.

Auth method
—
SDK languages
node, go, ruby, php
OpenAPI spec
yes
Webhooks
—
Structured outputs
—
See Loops API page

What you can do with Loops from an AI agent

Three shapes of agent workflow. Pick the row that matches how you actually use Claude / Cursor / Codex day to day.

INDIE / SOLO

Skip the dashboard, ask Claude

  • "What campaigns underperformed this week?" answered in seconds
  • Quick one-off questions without leaving the editor
  • Pipe Loops data into your personal notes / docs without writing a script
Effort: 30 seconds — paste the config, restart Claude
AGENCY

Run client analysis at agent speed

  • Hand the MCP server to your team — every consultant can ask Claude about any client's Loops account
  • Multi-account workflows without context-switching the Loops UI
  • Reports you'd normally spend hours on, done before standup
Effort: An afternoon — set up auth per client
IN-HOUSE TEAM

Production agent workflows

  • Embed in your internal Codex / Cursor agents that triage Loops data daily
  • Combine with other MCP servers in a multi-step agent chain
  • Constrain agents to read-only roles to keep production Loops safe
Effort: Days — security review + role config

Limits and gotchas

  • Official MCP server — published by Loops themselves, so it should track product changes.
  • Fallback: the REST API works for any flow the MCP server doesn't cover.
  • OpenAPI spec is published — easy to validate which endpoints the MCP server actually exposes vs the full API surface.
  • Rate limits: MCP calls count against your underlying Loops API quota. Burst usage from a curious agent can drain a daily allowance fast.
8/10

Agent-readiness verdict

Shipped, official and hosted. A remote streamable HTTP server with browser OAuth and a registry entry is the strongest form this can take, and it lands Loops among the few email platforms an agent can drive without custom glue. The gap now is documentation rather than capability: no published tool list, consent split, plan gating or rate limits.

Strong agent-fit for SaaS workflows. Loops runs an official first-party remote MCP server at mcp.loops.so (streamable HTTP, browser OAuth, listed in the official MCP registry as io.github.loops-so/loops), alongside a documented public API with an OpenAPI spec, webhooks and official SDKs for JavaScript/TypeScript, Go, PHP and Ruby plus a Nuxt module. The remaining limitation is disclosure rather than capability: Loops does not publish the server's tool list, read/write consent split, plan gating or rate limits.

Scored by Joonas (TMB).

Loops MCP & API FAQ

Is the Loops MCP server official?+
Yes — an official, vendor-maintained server at https://mcp.loops.so.
Can I use the Loops MCP with Cursor or Codex?+
Yes — MCP is a protocol, not Claude-specific. Any MCP-capable client (Cursor, Codex, Windsurf, Zed) can use the same server config with minor path adjustments.
Does Loops have a public API?+
Yes — public REST API at loops.so/docs/api-reference/intro. Official SDKs: node, go, ruby, php.
Does Loops publish an OpenAPI / Swagger spec?+
Yes — app.loops.so/openapi.yaml. Auto-generate typed clients from it.

Sources

Data verified by Joonas on the dates shown. MCP server status auto-rechecked weekly.

Joonas Rotko
Joonas RotkoAuthor & Founder of That Marketing Buddy

10+ years in digital marketing. I review marketing software for AI-stack fit: real pricing, MCP and API support, and how cleanly each tool drops into an AI agent workflow, cross-checked against verified data and real user feedback.

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