APIs, GraphQL, gRPC & OpenAPI: Live GitHub Trending & Developer Pulse
Explore trending API design tools, OpenAPI generators, webhook debuggers, and high-throughput gateway architectures.
Top Trending APIs, GraphQL, gRPC & OpenAPI Repositories on GitHub
Updated hourlyUser-friendly AI Interface (Supports Ollama, OpenAI API, ...)
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.
The open alternative to Salesforce, designed for AI.
React-based framework with performance, scalability, and security built in.
Prettier is an opinionated code formatter.
🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.
Scheduling infrastructure for absolutely everyone.
Hacker News Engineering Discussions on #graphql
Google’s copying of the Java SE API was fair use [pdf]
Bose has released API docs and opened the API for its EoL SoundTouch speakers
Hacker News API
Bruno: Fast and Git-friendly open-source API client (Postman alternative)
Introducing ChatGPT and Whisper APIs
Lyrebird – An API to copy the voice of anyone
Community Articles & Tutorials (APIs, GraphQL, gRPC & OpenAPI)
One bad row failed a paying customer's whole run 🧯
The bug wasn't in the API call. It was in what I assumed people would type. Hi! I'm Tim, a...
10 Ready-to-Run DeepResearch Workflows for Finance, Life Sciences, and Supply Chain
Day 11 of 30 Days of Search Quick summary Valyu Workflows are prebuilt, versioned...
Top 5 Best US Stock Market APIs for Developers in 2026
Building a stock market dashboard, portfolio tracker, investment research platform, or financial...
Building a Production-Ready Remote MCP Server with OAuth 2.0 & PKCE
If you have experimented with the Model Context Protocol (MCP) recently, chances are you followed a...
The same SEC filing has two acceptance times, depending on which EDGAR file you read
I compared 450 acceptanceDateTime values from EDGAR's submissions API with the time on each filing's index page. 13 of 25 companies' files were off by exactly one Eastern offset, for every filing in them.
Building a Yandex SEO MCP server: six traps in the Yandex Webmaster API
I spent a day building a Yandex SEO MCP server: wiring Yandex Webmaster into the Model Context...
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Frequently Asked Questions
How often is the APIs, GraphQL, gRPC & OpenAPI trend radar updated?
Castov updates the APIs, GraphQL, gRPC & OpenAPI radar every hour using Incremental Static Regeneration (ISR), aggregating active GitHub repositories, Hacker News discussions, and Dev.to engineering articles.
How are the top APIs, GraphQL, gRPC & OpenAPI GitHub repositories ranked?
Repositories matching openapi OR graphql OR trpc are filtered for recent commit activity and ranked by community star velocity and fork count.
What developer tool on Castov pairs best with APIs, GraphQL, gRPC & OpenAPI?
We recommend using HTTP Status Code Encyclopedia (/http-status) alongside our 100% client-side developer utilities.