API Tools Software

AI research and deployment

Free DNS service

Web scraping platform

Automate your work

The world's largest software registry

Open source Firebase alternative

AI voice generation

Modern, native, and friendly GUI tool for relational database management.

API platform for building and using APIs

Identity platform for developers

Node.js database ORM

Composable content platform

The best web scraping API to avoid getting blocked, with AI-powered data extraction and headless browser management.

Instant GraphQL APIs on your databases

GraphQL developer platform for building APIs

Authentication for modern apps

No-code backend builder

Open-source identity infrastructure

Secure tunnels to localhost

Supercharge Postgres with a modern data model, graph queries, Auth & AI solutions.

Observability for distributed systems

Open-source headless CMS

Real-time collaboration infrastructure

An in-memory data store for massive workloads, offering Redis/Valkey/Memcached compatibility and superior performance.

Email for developers

API and synthetic monitoring for developers

Open-source headless CMS and data platform

Activity feeds and chat API

OpenAI's image generation AI available via API

Headless CMS and application framework

Video infrastructure for developers

Serverless functions for Netlify sites

Chat and messaging API for apps

Load testing tool for developers

Backend application platform

Developer documentation platform

Open source scheduling

Connect APIs with code

Open-source data integration platform for ELT pipelines

AI search for developers

API development framework

Modern observability platform

API marketplace and hub

Federated content platform with GraphQL

Secrets management

Open-source headless commerce platform

Lightning fast search

File uploads for TypeScript developers

The next-generation open-source JavaScript runtime for the modern web, built on web standards.

API client for REST and GraphQL

API documentation platform

Serverless data for developers

Shipping API for e-commerce

Localization management platform

API gateway and platform

Event-driven background jobs and workflows

AWS cloud emulator

MongoDB IDE

Authentication infrastructure for developers

API documentation and developer portal

API design platform

Headless commerce backend for developers

Open-source headless commerce

Open-source identity management

Load testing for web applications

E-signatures by Dropbox

Headless commerce API for global brands

File upload and processing API

Open source API development

REST API client for VS Code

Shipping API for e-commerce

E-signatures made easy

Chat API for websites and apps

File uploading and processing API

Documentation platform for product and API docs

API documentation platform

Data platform for modern apps

Backend as a service with visual app development

Open-source user authentication

Distributed tracing and observability

Form backend with no server code

User-friendly command-line HTTP client

Passwordless authentication SDK

Build reliable AI apps with Helicone: AI Gateway & LLM Observability for debugging, routing, and analysis.

Open-source authentication with passkeys

Headless e-commerce for developers

Open-source WebRTC platform

Every thing works better together

Technology lookup tool

AI coding assistant

Open-source load testing tool

Form backend for static sites

API design, testing, and documentation in one platform

Trace-based testing for distributed systems

Form backend for static sites

Design interactions on your phone

Form backend for developers

API mocking made easy

GraphQL platform

Framework for serverless WebAssembly applications

API development environment

Financial data API

Load testing toolkit

Open-source API platform

Mock API generator

Service networking solution for secure connectivity across on-prem, hybrid, and multi-cloud environments.

High-performance web server

Production stack for Gen AI builders: AI Gateway, Observability, Guardrails, Governance, and Prompt Management.

Connect cloud apps

Cloud-native API gateway

Scale web scraping and collect data from any public website without handling proxies or CAPTCHAs.

ZenRows

A simple, open-source tool to replay HTTP requests for testing and debugging.

Online IDE and API for compiling and executing code in over 70 programming languages.

Rapid application development platform

Test, monitor, and visualize geospatial APIs to accelerate development and ensure reliability.

AI coding from anywhere: Control Cursor IDE on your Mac and access AI coding assistants on the go.

Serverless messaging and scheduling for reliable, asynchronous communication between services.

API documentation platform

Reliable event infrastructure for webhooks and external event streams.

Open-source API testing framework for security, performance, and load testing.

Send and receive webhooks with enterprise-grade reliability, security, and scalability.

Debug gRPC, REST, SSE, and WebSocket APIs from a single, privacy-first workspace.

One-click integrations

Interactive API documentation platform

A modern API platform built for the OpenAPI™ standard, offering developer tools and registry services.

Build, manage, and optimize real-time interactive applications at scale.

Visual automation platform

Build AI-powered applications and agents with a modern TypeScript stack.

The fast, secure, and offline API client that works seamlessly with Git.

Test and develop ChatGPT and MCP apps locally without ngrok or ChatGPT subscription.

Enterprise-grade Web3 APIs for real-time blockchain data, powering wallets, compliance, AI, and next-gen finance.

Elevate your API development, testing, and monitoring with powerful and flexible tools.

The world's most popular open-source API testing tool for REST, SOAP, and GraphQL.

One holistic platform for real-time API intelligence, security, governance, and documentation.

Modify HTTP request and response headers directly from your browser for web development and debugging.

View, edit, format, compare, and transform JSON data online with ease.

No-code integration platform

API design and documentation

Turn your Android phone into a powerful SMS gateway for programmatic messaging.

Shipping API and platform

Visual API workflows

API development tools

Headless CMS and application framework

Access real-time search engine results from Google, Amazon, Bing, and more via a robust API.

API marketplace

The fastest and cheapest Google Search API for real-time SERP data.

Scalable web scraping API for blockage-free data extraction from any website.

Comprehensive API stack for SEO and digital marketing data solutions.

The fastest open-source API Gateway for microservices, offering high performance and linear scalability.

Generate stunning, low-maintenance, and engaging API documentation in seconds using AI.

Integration infrastructure for developers to ship customer-facing connectors faster.

Developer infrastructure for building and managing AI-powered product integrations.

Ship customer-facing integrations in hours with a developer-first, native integration platform.

Merge.dev

Mergent

Add retry, delay, queue, and schedule to HTTP requests without managing infrastructure.

Ship multi-channel notifications like a pro with an API and SDKs that hide complexity.

AI-powered OCR APIs for intelligent document capture, extraction, and fraud detection.