Lightweight APIs for Email Validation, DNS Lookups, ZIP Codes & Shipping Logic

Name: WyldAPI
Brand: WyldAPI

Fast responses, simple token authentication, and easy integration without bloated SDKs.

Built to Solve the Boring Backend Stuff

WyldAPI focuses on the backend utilities developers rebuild over and over again. Each API does one job well, integrates quickly, and stays out of your way.

Stop Rebuilding the Same Utilities

Use only what you need, no bloated SDKs or bundled junk.

Built for Common Backend Tasks

Email validation, DNS, ZIP/postal data, file conversion, and more.

Try Before You Commit

Use free tools like DNS lookup and email checks.

Doc's Built for Developers

Clear examples, short docs, zero fluff.

Copy-Paste Code Samples

Instantly usable examples for common languages and environments.

No Data Hoarding

We don't store personal data or log API responses.

View All APIs

Popular API Use Cases

Backend Utilities for Developers

WyldAPI helps developers add common backend functionality without rebuilding the same validation, lookup, and calculation tools from scratch.

Email Validation API

Block disposable emails, verify MX records, reduce fake signups, and improve the quality of lead forms and account registrations.

View Email API

DNS Lookup API

Retrieve A, MX, TXT, SPF, and other DNS records for domain checks, email troubleshooting, and infrastructure diagnostics.

View DNS API

ZIP & Postal Code API

Convert U.S. ZIP codes and Canadian postal codes into useful city, state, province, and regional location data.

View ZIP API

Bin Packing API

Calculate efficient box selection and packing layouts for shipping, fulfillment, warehouse, and ecommerce workflows.

View Bin Packing API

Ready-to-Use APIs

Disposable Email Checker

Check whether an email address is disposable, risky, or tied to a real domain.

DNS Lookup

Retrieve DNS records like A, MX, and TXT, no authentication required

ZIP Code Lookup

Get city and state data from Canadian and US ZIP or postal codes

Bin Packing Tool

Calculate the most efficient box size for your product dimensions

Built for Developers Who Need Predictable APIs

WyldAPI is developed by the team at WyldCode a software development company with more than 20 years of experience building web applications, ecommerce systems, SaaS platforms, and custom backend tools.

After integrating countless third-party APIs across client projects, we kept running into the same problems: bloated SDKs, inconsistent responses, poor documentation, and unnecessary complexity.

WyldAPI was built to solve common backend tasks with lightweight REST APIs that are fast to integrate, predictable to work with, and focused on doing one job well.

Developer working with API integrations and backend application code