Emailactive

Loops API for coding agents

Loops has a small, legible API surface and unusually agent-friendly documentation. It belongs in the launch set even without a public benchmark because its published integration path is concrete and current.

#5of 7

Email API agent readiness

Ships a hosted MCP server, CLI, skills, llms.txt, and clear agent guides, but lacks a comparable public task or setup result.

Last checked Aug 17, 2026 6 primary sources Independent test pending

Public evidence

No comparable public agent benchmark found.

We found first-party integration material, but no public run with comparable time, cost, and completion evidence.

First-party integration signals

llms.txtFull documentation index

MCP serverOfficial integration

Agent guidesCopyable implementation prompts

Agent skillsOfficial setup guidance

Official SDKTypeScript-first

Idempotency24-hour duplicate protection

Benchmark coverage

Independent run pending

We did not find a public agent run for Loops with enough detail to compare against this category. The integration signals on this page come from first-party sources.

No score is better than an invented one. This page will separate our future result from third-party evidence.

Agent verdict

Can a coding agent use Loops? Yes, through the SDK or API.

Loops publishes llms.txt, agent-oriented guides, skills, and direct examples. The main setup dependency is a transactional template created and published in the dashboard before code can send it.

Clear agent guidance; dashboard setup required

Recommended setupHosted MCP server

Claude Code

claude mcp add loops https://mcp.loops.so --scope user --transport http

Adds Loops as a remote MCP server, then opens browser authentication from /mcp.

Agent setup wizard

curl -fsSL https://install.loops.so/wizard | sh

Installs the official Loops CLI and skills; review scripts before piping them to a shell.

Node.js / TypeScript

npm install loops

Create and publish a transactional email first, then give the agent its transactional ID and required data variables.

Direct REST

POST https://app.loops.so/api/v1/transactional

Use Bearer auth and include every required, case-sensitive data variable.

Open official setup documentation

Supported workflows

Common Loops workflows

Send transactional email

Trigger lifecycle campaigns

Manage contacts and lists

Track product events

Decision guide

Is Loops a fit?

Good fit

Software companies combining lifecycle and transactional email
TypeScript backends
Agents working from a pre-published email template

Check before shipping

A template must be created and published in the dashboard
Required variables are case-sensitive
No comparable public benchmark was found

Reference

API limits and source records

Base URL, authentication, pricing, SDKs, rate limits, and checked documentation.

API basics

Base URL: https://app.loops.so/api/v1
Authentication: Bearer API key
Free tier: See current pricing
Rate limit: Endpoint dependent; see current API reference
Testing: Publish a transactional template, then call it by transactional ID; required variables are case-sensitive

3 official SDKs

JavaScript / TypeScript PHP Ruby

6 checked sources

QuickstartCLI · MCP · agent skills · template workflow Hosted MCP serverClaude Code · Claude Desktop · remote MCP · OAuth Transactional emailtransactional ID · data variables · publishing Send transactional emailBearer auth · endpoint · idempotency API and SDK examplesJavaScript · PHP · Ruby · Python examples Node.js agent guideSDK package · agent prompt · environment setup

Pricing, status, and alternatives

Pricing Status Changelog GitHubResendPostmarkAgentMail

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