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API Tools Software & Alternatives

API design, management, testing and mocking platforms.

Context7

Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

57K stars open source
AI Tools API Tools

Litellm

LiteLLM is an open-source AI gateway and Python SDK designed to simplify interactions with over 100 large language model providers including OpenAI, Anthropic, Google Vertex AI, Am... Read More

49.8K stars open source
API Tools LLM Tools & Chat UIs

Bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

44.8K stars open source
CSS Frameworks & UI Kits API Tools Design Systems & Tokens

Kong

Microservice API Gateway and Platform.

43.6K stars open source
API Tools Developer Tools

Ccxt

CCXT is a comprehensive cryptocurrency trading library that provides a unified API for connecting to and trading on over 100 cryptocurrency exchanges worldwide. Available in JavaSc... Read More

42.9K stars open source
API Tools Crypto & Blockchain

Curl

A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3,... Read More

42.1K stars open source
API Tools Terminal & CLI Tools

Trpc

🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

40.3K stars open source
API Tools

Insomnia

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

38.5K stars open source
API Tools

Istio

Connect, secure, control, and observe services.

38.2K stars open source
API Tools Load Balancers & Proxy

Hasura

Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events.

32K stars open source
API Tools Backend as a Service

Consul

Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.

29.9K stars open source
API Tools Load Balancers & Proxy

ProxmoxVE

Proxmox VE Helper-Scripts (Community Edition)

28.5K stars open source
Hosting Panels API Tools Container Management

Postgrest

REST API for any Postgres database

27.2K stars open source
Relational Databases API Tools

Openapi Generator

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

26.4K stars open source
API Tools

Serena

A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

25.1K stars open source
AI Tools AI Agents API Tools

Redisson

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet... Read More

24.3K stars open source
NoSQL Databases API Tools DB Admin & GUI Clients

Apollo Client

The industry-leading GraphQL client for TypeScript, JavaScript, React, Vue, Angular, and more. Apollo Client delivers powerful caching, intuitive APIs, and comprehensive developer... Read More

19.8K stars open source
API Tools JavaScript Libraries & Components

Yaak

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

18.7K stars open source
API Tools

Verdaccio

A lightweight Node.js private proxy registry

17.7K stars open source
API Tools Artifact & Package Registries

Graphiql

GraphiQL & the GraphQL LSP Reference Ecosystem for building browser & IDE tools.

16.8K stars open source
Code Editors & IDEs API Tools

Apisix

The Cloud-Native API Gateway and AI Gateway

16.7K stars open source
API Tools Load Balancers & Proxy

About API Tools Software

Best open source API tool alternatives.