# api tools for indie developers

Canonical page: https://indiedev.tools/tag/api

Tools tagged api in the Indie Dev Tools catalog.

## Overview

Listings tagged “api” from the Indie Dev Tools catalog.

## Tools

- [API2Cart](https://indiedev.tools/tool/api2cart-t_mjikwk0lu737dwf7arr.md) — API2Cart - eCommerce Unified API Integration Solution
- [Build API](https://indiedev.tools/tool/build-api-t_lwextxhx2rgr7ac2q3n.md) — Build API backend with Nodejs, MongoDB, Redis, Bull, Firebase Auth for your side projects
- [Clobbr](https://indiedev.tools/tool/clobbr-t_lv2dmer3zal9d38ljsb.md) — The app & CLI tool to load test your API endpoints.
- [Crawly](https://indiedev.tools/tool/crawly-t_ma0lsk07zrp4nbivihm.md) — Crawly extracts structured web data and high-quality screenshots with one powerful, easy-to-use API.
- [holidays.rest](https://indiedev.tools/tool/holidays-rest-t_m3w7ivza15cnltl1bsi.md) — holidays.rest is a highly scalable, flexible, and easy-to-use public and bank holidays API
- [Html2pdf API](https://indiedev.tools/tool/html2pdf-api-t_m1xmpvzkgzl5koon74f.md) — Transform HTML to PDF, images, and videos instantly
- [Hydrozen.io](https://indiedev.tools/tool/hydrozen-io-t_lywk90s8mvc7ep28tsd.md) — Hydrozen helps you monitor the availability of your websites, Cronjobs, APIs, Domains, SSL, and more!
- [InstantAPI.ai](https://indiedev.tools/tool/-instantapi-ai-t_m01ejf3y149apxxbzvpb.md) — InstantAPI offers fast, customizable API creation with easy data integration and real-time insights.
- [JSONing](https://indiedev.tools/tool/jsoning-t_mgntrz8ov663aszbyjn.md) — Easily create, validate, and manipulate your JSON files.
- [Kobble](https://indiedev.tools/tool/kobble-t_lvawumj1ihgt00tw0wk.md) — Add authentication, analytics and payment to your API, SaaS or GPT, in under 10 minutes with Kobble.
- [LeakData.io](https://indiedev.tools/tool/leakdata-io-t_mrnprau5xpynts6fmbr.md) — Breach monitoring and credential exposure alerts for developers and security teams.
- [Mailtester Ninja](https://indiedev.tools/tool/mailtester-ninja-t_lz7anf3wjr0m2jgzywn.md) — MailTester Ninja is an advanced email verification tool.
- [PDF Munk](https://indiedev.tools/tool/pdf-munk-t_m8yqzfhtt1g0r0v4rz.md) — Powerful API to generate PDF from HTML or URL
- [PDFBolt](https://indiedev.tools/tool/pdfbolt-t_m7nb51n6hls3ypftwco.md) — PDFBolt is a fast, secure, and developer-friendly HTML to PDF API
- [Pika](https://indiedev.tools/tool/pika-t_lwadb061rbh0wzpyzlr.md) — Pika is an online screenshot editor & API for image generation
- [ReferralAPI](https://indiedev.tools/tool/referralapi-t_lv6ondsb7gw8rtc5ly.md) — Create customizable, powerful and trackable referral programs with ReferralAPI
- [SharpAPI](https://indiedev.tools/tool/sharpapi-t_lw93s8x65jm9e7y8hpg.md) — Leverage AI API to streamline workflows in E-Commerce, Marketing, Content Management, HR Tech, Travel, and more.
- [Templated](https://indiedev.tools/tool/templated-t_m3zz7c5i9mxdnvn7t7q.md) — API for Automated Image and PDF Generation
- [Tolgee](https://indiedev.tools/tool/tolgee-t_m2hgnzalk8scyhfddod.md) — Developer-friendly open-source localization platform
- [Website Connectivity Diagnostics API](https://indiedev.tools/tool/website-connectivity-diagnostics-api-t_mk0ry1hi7lesrtf1vvj.md) — Simple REST API for DNS, TCP, TLS, and HTTPS health checks

## Related pages

- [All tags](https://indiedev.tools/tags.md)
- [Categories](https://indiedev.tools/categories.md)

Last updated: 2026-08-19