InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 18 JavaScript api-client Projects
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Bruno offers a completely free, open-source alternative that's gaining traction among privacy-conscious developers
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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ESPN-Fantasy-Football-API
Connect to ESPN's fantasy football API via this JS API client for web and NodeJS. Available as an npm package.
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authy-client
A complete Authy client with support for TOTP, OneTouch, Phone Verification and Phone Intelligence APIs
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If you're making resolutions for 2025, add Golang to your list. You won't regret it. Thanks for reading! If you want to learn Golang by contributing to an open-source project, check out glee and Lama2.
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Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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currencyapi-js
The perfect tool to handle your exchange rate conversions. Our API helps you with current and historical foreign exchanges rates. Stop worrying about uptime & outdated data.
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pokemon-finder
Pokemon Finder is a React app hosted on GitHub that acts as an interactive Pokédex, letting users discover detailed information about Pokémon using the PokéAPI.
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gunbot-sdk-js
JavaScript & TypeScript client for Gunbot, a self hosted trading bot for crypto / ETF / stocks.
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Node-Essentials
A node toolkit for doing async api calls, writing to file system, starting up express-js servers and more coming soon.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript api-client discussion
JavaScript api-client related posts
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Postman vs Bruno: What Are the Key Differences?
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Open Source IDE for Exploring and Testing API's (Postman/Insomnia Alternative)
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Postman: Major Outage on Desktop and Browser
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Building a smarter Web scraper: Vector embeddings for intelligent content retrieval and analysis
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Why API design is a mess, and how could a git-native tool help?
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Postman is logging all your secrets and environment variables
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6 Game-Changing Postman Alternatives That Will Revolutionize Your API Development in 2025
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Index
What are some of the best open-source api-client projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | bruno | 36,471 |
| 2 | ESPN-Fantasy-Football-API | 338 |
| 3 | kitsu | 282 |
| 4 | FlowTest | 271 |
| 5 | laravel-api-explorer | 145 |
| 6 | authy-client | 122 |
| 7 | Lama2 | 120 |
| 8 | node-bigcommerce | 93 |
| 9 | fetch | 53 |
| 10 | nhentai-api | 44 |
| 11 | shotstack-sdk-node | 32 |
| 12 | react-rest-dom | 7 |
| 13 | currencyapi-js | 6 |
| 14 | pokemon-finder | 3 |
| 15 | gunbot-sdk-js | 2 |
| 16 | quick-flick | 1 |
| 17 | Node-Essentials | 1 |
| 18 | movie-loft | 0 |
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com