Tutorials

Step-by-step guides to get the most out of 1Lookup

How to Build an MCP Server That Agents Can Actually Use

A practical build guide for MCP servers: pick a transport, register tools with schemas a model can read, write errors an agent can act on, and choose an auth model.

August 10, 2026

11 min read

Robby Frank

CEO & Founder

How to Detect Disposable Email Addresses via API

Learn how to detect disposable email addresses via API. A practical disposable email detection API tutorial with curl, Node.js, and Python to block throwaway signups.

June 25, 2026

8 min read

Robby Frank

CEO & Founder

Email Verification Integration Guide for Node.js

A practical guide to email verification in Node.js. Validate emails with fetch, axios, and Express middleware, then add bulk checks, caching, and retries.

June 24, 2026

8 min read

Robby Frank

CEO & Founder

How to Validate Phone Numbers with the 1Lookup API in 5 Minutes

Learn how to validate phone numbers with API calls in 5 minutes. A hands-on phone validation API tutorial with curl, Node.js, and Python examples.

June 23, 2026

8 min read

Robby Frank

CEO & Founder