Aastro source
Extensible API Gateway written in Go.
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12 self-hosted alternatives to Hoppscotch Community Edition (2026)
Fast and beautiful API request builder.
DreamFactory source
Turns any SQL/NoSQL/Structured data into Restful API.
form.io source
A REST API building platform that utilizes a drag & drop form builder, and is application framework agnostic. Contains open source and enterprise version.
Fusio source
Open-source API management platform which helps to build and manage REST APIs.
Graphweaver source
Turn multiple data sources into a single GraphQL API.
Hasura source
Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events.
Kong source
Microservice API Gateway and Platform.
Lura source
High-performance API Gateway.
Opik source
Evaluate, test, and ship LLM applications with a suite of observability tools to calibrate language model outputs across your dev and production lifecycle.
Para source
Flexible and modular backend framework/server for object persistence, API development and authentication.
Svix source
Open-source webhooks as a service that makes it super easy for API providers to send webhooks.
Tyk source
Fast and scalable open source API Gateway. Out of the box, Tyk offers an API Management Platform with an API Gateway, API Analytics, Developer Portal and API Management Dashboard.