KrakenD API Gateway Alternatives (September 2025)

Kong Gateway is the industry’s most trusted open source API gateway. Accelerate development and delivery of APIs and microservices with Kong Gateway today!

Kong is the most widely adopted API gateway and service mesh, powering the world’s APIs for modern architectures. Accelerate development and productivity today!

Our API Management platform is fast, scalable, modern. Including an open source API Gateway, Analytics, Dev Portal and Dashboard.

Traefik Mesh is an open source service mesh, easy to configure that allows visibility and management of the traffic flows inside any Kubernetes cluster.

Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets

WireMock is a tool for building mock APIs. API mocking enables you build stable, predictable development environments when the APIs you depend on are unreliable or don’t exist.

Reimagine your application connectivity and API management with Traefik's unmatched approach to cloud native.

Kubernetes message broker and message queue platform. An open-source project providing the most efficient way to connect microservices.

Easily unify the management, security, and governance of both synchronous and asynchronous ecosystems with the leading open source API Management platform.

Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

Open-Source, Full-Stack Microservice Solution.With out of the box, high performance, compatible with popular ecology, multi-language support Get started

Zuplo is the API management platform for developers. Build, deploy, and scale APIs faster with Zuplo.

A powerful CMS, BaaS, and more. Power any project with Directus – a composable data platform to easily create and deploy data-rich apps.

Ambassador Labs - We build best-in-class Kubernetes-native productivity tools to safely design, develop, test, deploy, & monitor apps with speed & efficiency

Simplify API development for users, teams, and enterprises with our open source and professional toolset. Find out how Swagger can help you and get started today.

Don't wait for the backend to be ready, generate custom API responses with Mocky and start working on your application straightaway

MicroK8s is the simplest production-grade conformant K8s. Lightweight and focused. Single command install on Linux, Windows and macOS. Made for devOps, great for edge, appliances and IoT. Full high availability Kubernetes with autonomous clusters and distributed storage.

Kong Mesh is an enterprise-ready service mesh that provides security, reliability and observability for Kubernetes environments. Accelerate deployments today!

Build powerful reactive, concurrent, and distributed applications in Java and Scala

The only open source, AI-ready graph database that gives developers the tools to quickly build distributed applications at scale.

QuestDB is the world's fastest growing open-source time-series database. It offers massive ingestion throughput, millisecond queries, powerful time-series SQL extensions, and scales well with minimal and maximal hardware. Save costs with better performance and efficiency.

WSO2 Micro Integrator is a robust and lightweight integration solution that simplifies digital transformation by offering seamless connectivity, flexible deployment options, API / event-driven integrations, and powerful data transformation capabilities with debugging and testing support.

Hookdeck is an Event Gateway. A platform giving engineering teams infrastructure and developer tooling to build, deploy, operate, and monitor event-driven applications.

API-First, multi-channel CMS, build multi-device presentation layers with your preferred frameworks and languages.

An open source Kubernetes Platform to manage enterprise-grade Kubernetes across hybrid cloud, multi-cloud and edge. Get started for free!

SashiDo.io is a serverless API development platform with scalable json rest and graphql apis, headless cms, built with nodejs, mongodb, parse server, kubernetes and docker.

Linkerd adds critical security, observability, and reliability to your Kubernetes stack, without any code changes.

An open-source Backend-as-a-Service stack for web & mobile applications, based on RESTful APIs.

A high performance, open source universal RPC …

ScyllaDB is the distributed database for data-intensive apps that require high performance and low latency.

Quickly see all of your endpoints, your slow endpoints, and your endpoints with errors.

Keygen is a powerful software licensing API for desktop apps, on-premise software and other software products written in C++, C#, Swift, Java, Kotlin, Node and more.

NCache is an extremely fast and scalable Open Source In-Memory Distributed Cache for .NET and Java that caches app data and stores Web Sessions in multi-server environments.

Implement unified Kubernetes-native API gateways, load balancers, and ingress controllers across hybrid and multi-cloud Kubernetes environments.

A service mesh for observability, security in depth, and management that speeds deployment cycles.

Webiny is an open source serverless CMS that offers you all the enterprise-grade functionalities, while keeping your data within the security perimeter of your own infrastructure

Redpanda is a powerful, simple, and cost-efficient streaming data platform that is compatible with Kafka® APIs while eliminating Kafka complexity.

An open source Java EE 8-compliant application server that lets you build Java applications once and deploy them everywhere.

Connected systems make you faster, more efficient, and highly competitive. In today’s world of fast moving business, connectivity is power.

Reliable, High Performance TCP/HTTP Load Balancer

Qdrant is an Open-Source Vector Database and Vector Search Engine written in Rust. It provides fast and scalable vector similarity search service with convenient API.

Simplify API onboarding and consumption with an API Portal that’s purpose-built for API teams to create, secure, market, and monetize API products.

Fauna combines the relational power, strong consistency, and schema capabilities of a relational database with the flexibility and scalability of documents, all delivered as a Cloud API with zero engineering operations.

Apache Kafka: A Distributed Streaming Platform.

Kiali Project site

Consul is a multi-cloud service networking platform to connect and secure services across any runtime platform and public or private cloud.

Build invincible apps with Temporal's open-source durable execution platform to guarantee successful execution, even in the presence of failures.

With Stoplight, you can create OpenAPI descriptions, documentation, and mock servers much faster than other API tools — with no specialized knowledge required — all in one centralized platform.

Unified APIs to build SaaS integrations. Launch the integrations your customers need in record time.

Browse our developer-first, open source application delivery & hosting platform. Discover unmatched flexibility, up to 99.99% uptime, & exceptional support

Apache Mesos abstracts resources away from machines, enabling fault-tolerant and elastic distributed systems to easily be built and run effectively.

Open-source self-hosted alternative to Vercel, Netlify, Raiway.app, Render or Heroku running on Kubernetes clusters.

Swagger UI allows development team to visualize and interact with the API’s resources without having any of the implementation logic in place. Learn more.

Portainer is your container management software to deploy, troubleshoot, and secure applications across cloud, datacenter, and Industrial IoT use cases.

IBM API Connect is software to rapidly create, secure and manage APIs. IBM API Connect can be deployed in any Red Hat OpenShift environment. It’s also available as SaaS in a shared or dedicated instance, and as part of IBM Cloud Pak for Integration.

Production-Grade Container Orchestration

An open-source universal messaging library

HarperDB's global application platform simplifies development with one package that includes a lightning-fast database, embedded API server, and real-time global data replication. Deploy from cloud to edge to on-prem.

An industry-standard container runtime with an emphasis on simplicity, robustness, and portability

Payara Server is fully supported, developer-friendly, open source application server. Innovative, cloud-native, optimized for production deployments.

Amazon API Gateway helps you build HTTP, REST, and WebSocket APIs with a fully managed service that makes it easy to create, publish, maintain, manage, monitor, and secure APIs.

Nomad is a highly available, distributed, data-center aware cluster and application scheduler designed to support the modern datacenter with support for long-running services, batch jobs, and much more.

Rapidly optimize and compress your JPG, PNG, WebP and GIF images with our powerful API. Boost your website’s performance and manage images efficiently.

Scale your distributed applications, modernize your workflows for durability, and protect against software failures and downtimes with Orkes Conductor.

Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage and Vector embeddings. Start for free.

D2iQ makes it easier to build and run Kubernetes at scale, reducing time to market from months to days.

A secure cloud management platform for automation, orchestration, cost and usage monitoring of public and private clouds, hypervisors and container hosts. Provides multi-cloud RBAC. Enables self service provisioning. Cost analytics and cloud spending optimization

Intelligent data protection, purpose-built for the Cloud applications. Afi microservices-based architecture enables unrivaled speed and scalability, while the AI engine ensures high degree of autonomy and resistance to errors

memcached

Create and customize your online marketplace today. Fit for products and services selling, rental and booking. No developer needed. 7 days free trial.

OpenStack is an open source cloud computing infrastructure software project and is one of the three most active open source projects in the world.

Build apps at lightning speed with a visual low-code app builder featuring UI, Codeless logic, real-time database, messaging, and more.

Wazuh is a free and open source security platform that unifies XDR and SIEM protection for endpoints and cloud workloads.

A curated framework of Open Source Platform components to accelerate the development of Smart Solutions.

Kraken is more than just a Bitcoin trading platform. Come see why our cryptocurrency exchange is the best place to buy, sell, trade and learn about crypto.

Pliant’s API-driven orchestration platform automates, integrates, and connects the digital enterprise. With our low-code approach that transforms API code into deployment-ready action blocks, Pliant facilitates, integrates, and secures communication up and down the technology stack between platforms, services, and applications. Pliant accelerates traditionally manual tasks, eliminates silos, and reduces tool sprawl while accelerating innovation, productivity, and agility.

Leverage blockchain, digital assets, and tokenization to build transformative solutions for any industry. Kaleido makes it easy. Try it free today.

F5 NGINX Plus is an all-in-one load balancer, reverse proxy, web server, content cache, and API gateway. Get the product that can do it all.

On-premises B2B Gateway that helps with B2B integration & fast & secure managed file transfer (MFT) to exchange virtually any document type or size

Amazon DocumentDB is a fast, scalable, and highly available document database that is MongoDB compatible.

Build better AI and API products with a powerful observability and monetization platform

Using our JSON-RPC endpoint, get access to the fastest geo-distributed nodes for Ethereum, BNB chain, and Polygon. Get the fastest and high available blockchain node infrastructure with AI-based predictive autoscaling

Apiary provides the leading API-First platform designed specifically to help companies accelerate and control the design, development, and documentation of APIs.

DevOps serverless application tools to run background tasks with Docker containers and manage messaging queues with cloud elasticity and no vendor lock-in

Novu empowers developers and product teams to collaborate seamlessly on notification management. Its unified platform provides centralized content, type-safe schemas, and reusable components, facilitating efficient workflows. With code-first and no-code tools, teams can easily customize and deploy notifications across multiple channels like email, SMS, push, chat, and in-app. Novu enhances communication, reduces friction, and ensures reliable, scalable, and personalized user experiences while maintaining full visibility and control over notifications.

This blog post covers things on how to leverage the use of Storage Gateway for Syncing your On-Premise/Cloud Machine's data to Oracle Cloud Infrastructure Object storage. Storage Gateway is the evolution of the Storage Software Appliance that was launched with Oracle Cloud Infrastructure Classic. By migrating to Oracle Cloud Infrastructure Object Storage, you are using Storage Gateway with its enhanced file-to-object transparency and improved scale and performance.

Connect Google Analytics, MySQL, XML, JSON, Google Ads, Facebook Ads and more into spreadsheet dashboards. Automate marketing reporting to Google Sheets!

Lenses is the leading enterprise-grade Developer Experience for any Apache Kafka, revolutionizing the way engineers build event-driven apps: Intuitive Kafka UI, open-source Kafka Connectors, fine-grained access controls.

Low-latency blockchain nodes for Web3 developers. Archival Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis, Base. WebSocket, HTTP JSON RPC debug trace APIs

Flagsmith makes it easy to create and manage features flags. Use our hosted API, deploy to your own private cloud, or run on-premises.

Oxford Semantic Technologies is an AI and Knowledge Graph Tech start-up from Oxford University. RDFox is the rules-based AI and world’s most performant knowledge graph.

ScraperAPI handles proxy rotation, browsers, and CAPTCHAs so developers can scrape any page with a single API call. Web scraping with 5,000 free API calls!

Hygraph is the next generation GraphQL-Native Headless CMS powering mission-critical applications. Streamline content workflows, iterate faster and deliver to any destination of choice using our content APIs.

AWS certified developer. Custom nodejs developer. Custom python programmer. Snowflake and Redshift developer.

API gateway for Blockchain

IBM Cloudant is a fully managed JSON document database that offers independent serverless scaling of provisioned throughput capacity and storage. Cloudant is compatible with Apache CouchDB and accessible through a simple to use HTTPS API for web, mobile, and IoT applications.

Strapi is the next-gen headless CMS, open-source, javascript, enabling content-rich experiences to be created, managed and exposed to any digital device.

Explore a highly curated API marketplace focused on reliability, scalability, and quality. Access AI & Machine Learning, Content, Finance, Stock, and more APIs.

flannel is a network fabric for containers, designed for Kubernetes - flannel-io/flannel