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Build internal tools directly in your app's codebase

Interval supercharges your backend code with UIs, auth, audit logs, and more, leaving more time to focus on writing the code that matters.

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Free for solo hackers and small teams.

src/server/interval.ts
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import Interval from "@interval/sdk";
import { getCharges, refundCharge } from "./db";
 
new Interval({
actions: {
refund_user: async (io, ctx) => {
const email = await io.input.email("Email");
 
const charges = await getCharges({ email });
 
const toRefund = await io.select.table(
"Select one or more charges to refund",
{ data: charges }
);
 
ctx.loading.start({
label: "Refunding charges",
itemsInQueue: toRefund.length,
});
 
for (const charge of toRefund) {
await refundCharge(charge.id);
ctx.loading.completeOne();
}
},
},
}).listen();
interval.com
Acme Corp.

Actions

Refund user

Find and refund transactions for a user

Invite from waitlist

Create user account, send welcome email, and notify ops team to schedule onboarding call

Moderate comments

Scan recent comments to approve or mark as spam or off-topic

Ban user

Delete their account and disallow access

Skip the boilerplate, just write your backend

Interval is a batteries-included approach to building internal tools within your codebase. Just write business logic to power your tools in your backend, Interval handles the rest.

User interfaces

Nobody wants to spend time building UIs for internal tools. With Interval, just write business logic and sprinkle in calls to I/O methods when you need to collect input or display output.
Explore I/O methods
const data = await db.charges.find({ userId: user.id });
const charges = await io.select.table('Select charges', {
data,
});

Select charges

 
description
amount
date
Subscription payment
$27.00
4/20/2022
Subscription payment
$27.00
3/20/2022
On-demand 24-hr pass
$15.00
3/7/2022
Because you're collecting input and displaying output right from your Node app, there's no need for REST/GraphQL APIs to connect a frontend and backend.

Authentication

By the time your Interval code is called, users have already been fully authenticated through email, Google, or SSO.
Authentication docs

Refund user

Alex Arena

alex@interval.com

Log in

Email address

 Log inSign in with Google

Logs

Use the logging API to display progress to users running your Interval apps and to store logs for audits + reference.
Logs docs
if (charge.refunded) {
ctx.log('Skipped already refunded charge:', charge.id);
}
LogsHistory
Skipped already refunded charge: ch_m54TCsHu94RUWI

Notifications

Dispatch notifications directly from your Interval actions. Your teammates can receive notifications however they want: through your group messaging app or email.
Notifications docs
if (refundAmount > 10) {
await ctx.notify({
title: 'Refund over threshold',
message: `A charge of ${refundAmount} has been refunded.`,
});
}
Interval
APP6:10 PM
Your Refund user action on Interval triggered a notification.
Refund over threshold
A charge of $10 has been refunded.
View the transaction that sent this notification here.

Permissions

Need to gate who can access your tools? Use the Interval dashboard to set up tiered access for teams.

Product support

Jean Streichjean@interval.com
Shelley Wernershelley@interval.com
Kyle Sanokkyle@interval.com
Kim Hermannkim@interval.com

Refund user

Availability

Organization

Visible to anyone in the organization.

Teams

Visible only to teams explicitly granted access.

Billing support6 members
Runner
Product support4 members
Viewer

Scheduled actions

Automatically run actions on an hourly, daily, weekly, or monthly schedule. Receive notifications when actions complete, and use I/O methods to prompt for user intervention whenever unexpected conditions occur.

Scheduled actions docs

Built for engineers

Other tools force you to learn how to work in their custom environments and runtimes. Interval provides powerful primitives, then gets out of your way as much as possible.

Made for Node + TypeScript

We built Interval from the ground up specifically for Node + TypeScript. Interval's I/O methods do the heavy lifting of parsing, sanitizing, and type checking all user input. With Interval, your code is safer by default.
const = await io.search('Find a user', {
placeholder: 'Search by name, email, or ID',
onSearch: async query => db.findUsers(query),
});
const user
const user: {
id: string;
email: string;
firstName: string;
lastName: string;
imageUrl: string | null;
}

Build in your codebase

Love your ORM? Interval is just a regular Node module. When you add Interval to your existing app, you can use the same shared functions, environment variables, and 3rd party libraries as the rest of your app.

Build in code

Interval is designed for 100% compatibility with your existing codebase. Actions are just functions that you run in your Node.js backend, and our library of I/O methods are just async functions.

Secure by default

Interval apps are deployed on your infra, not ours. And because Interval is only collecting input and displaying output, we receive only the data you choose to send to us - and that data is never stored or logged on our servers.

Frequently asked questions

Can't find the answer to your question? Stop by our community Discord and ask away, or reach out to hello@interval.com.

Start building now

Create an account and build your first app in minutes, or read the docs to learn more about Interval.

Sign up for freeRead the docs

All plans include unlimited tools and users.

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