Discover the best indie api tools tools built by independent developers. Focused functionality, fair pricing, and real human support.
183 tools · Updated daily · Browse full category →
Open-source API development ecosystem. Postman alternative.
API design, debug, and test. Open-source core.
🔒 Enterprise-grade API gateway that helps you monitor and impose cost or rate limits per API key. Ge
Interact with Twitch API, chat, PubSub, and EventSub
API testing and collection management for AI agents
MockServer - Lightweight Go-based mock API server for fast prototyping, testing, and simulating REST
A self-hostable server that forwards webhooks and can proxy all kinds HTTP requests to a local machi
Payment processing platform for internet businesses. Accept payments, send payouts.
Open-source API client. Stores collections in Git.
Open-source interactive API documentation.
API design-first platform with visual editor.
gRPC and REST API client for developers.
Proof that people attend, and what they actually think.
Twitter/X public data API for developers and analytics teams
Stablecoin ramp intelligence for comparing providers, corridors, and payout routes.
Low-cost OpenAI-compatible AI API gateway
A reference implementation of GraphQL for JavaScript
A gRPC client from another world
OpenClaw plugin: SearXNG-powered web search — no API keys, no rate limits, self-hosted
🃏 A magical documentation site generator.
Parse Server for Node.js / Express
The Cloud-Native API Gateway and AI Gateway
🌍 Spec-compliant and production ready JavaScript GraphQL server that lets you develop in a schema-f
The highly customizable and versatile GraphQL client with which you add on features like normalized
Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance
Go client library for the Slack API with RTM and Events API support
[Feishu](https://open.feishu.cn/)/[Lark](https://open.larksuite.com/) Open API Go SDK, Support ALL Open API and Event Callback
A lightweight and easy to use RESTful api mocking server
API Documentation Browser
Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database even
🤖 AI Gateway | AI Native API Gateway
A Cloud Native traffic orchestration system
Run Express and other Node.js frameworks on AWS Serverless technologies such as Lambda, API Gateway,
Collect, transform, and sync data across your entire infrastructure with a flexible, code-based approach to data integration.
Full-featured Python wrapper for the Mastodon API
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs
GraphQL request library built on [got](https://github.com/sindresorhus/got)
No-nonsense stateless webhook tester
Self-hosted Instant, fast, and no API rate limit - Taiwan postal code lookup API service
A REST API building platform that utilizes a drag & drop form builder, and is application framework agnostic. Contains o
Microservice API Gateway and Platform
Flexible and modular backend framework/server for object persistence, API development and authentication
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.
All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.
Swiftly design and ship best-practice GraphQL backends atop existing data sources and APIs.
Easiest way to run mock REST APIs locally — no account required
Promise based HTTP client (works in the browser too)
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.
Go client for the [Internet Game Database API](https://api.igdb.com/)