Reminder API
for AI Agents

Schedule reminders via API. Wake your agents via webhook. Deliver notifications via email.

Get Started — FreeHow it works

How it works

1

Get an API key

Sign up and generate an API key from your dashboard. Keys start with rm_.

2

Schedule a reminder

Your AI agent calls POST /api/remind with a title, recipient, and fire time.

3

We deliver it

When the time comes, we send an email or fire a webhook. Track delivery status in real-time.

Built for AI Agents

Connect your AI assistant to RemindUser with our MCP server. Works with Claude Desktop, Cursor, and any MCP-compatible client.

Quick Setup

Install the MCP server and start scheduling reminders from your AI agent in seconds.

npx reminduser-mcp

Natural Language

Your AI agent can create, list, update, and cancel reminders using natural language through MCP tools.

"Remind me to review the PR tomorrow at 9am"

Simple API

One call to schedule a reminder

curl -X POST https://reminduser.com/api/remind \
  -H "Authorization: Bearer rm_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "title": "Follow up with client",
    "fire_at": "2026-03-01T09:00:00Z"
  }'

Pricing

Start free, upgrade when you need more

Free

$0

  • 100 reminders / month
  • Email delivery to yourself
  • Unlimited API keys
  • Community support
Get Started

Pro

$19/mo

  • 1,000 reminders / month
  • Email + webhook delivery
  • Unlimited API keys
  • Recurring schedules
  • Priority support
Upgrade to Pro