--- title: "Solo API Gateway Alternative — Zuplo" description: "Solo.io alternative for external API products—managed API management without a Kubernetes ingress and service-mesh stack. SOC 2. Trusted by Duck Creek Payments." canonicalUrl: "https://zuplo.com/api-gateways/solo-alternative-zuplo" pageType: "comparison" competitor: "Solo API Gateway" subtitle: "The Managed API Gateway Without Kubernetes Operator Burden" --- # Zuplo vs Solo API Gateway _The Managed API Gateway Without Kubernetes Operator Burden_ > Solo.io alternative for external API products—managed API management without a Kubernetes ingress and service-mesh stack. SOC 2. Trusted by Duck Creek Payments. ## Why Teams Move Away from Solo API Gateway ### Kubernetes-Anchored Operating Model Gloo Gateway, kgateway, agentgateway, and Solo's Istio-based mesh are rooted in the Kubernetes ecosystem. agentgateway can also run standalone, but every offering is software you deploy and operate rather than a hosted service, so external API management still requires Kubernetes and platform expertise. ### Self-Managed Developer Portal and Lifecycle Solo ships a developer portal, self-service API keys, and usage-based analytics — but they are features you deploy and operate on your own Kubernetes control plane, not a hosted SaaS portal. ### Cluster Operations Overhead Custom logic and policy live in Kubernetes-native config and Envoy/Rust data planes that the platform team builds, debugs, and maintains. Specialist Kubernetes and Envoy/Istio skills required. ## About Solo API Gateway Solo.io builds cloud-native, Kubernetes-based API and AI connectivity infrastructure. Its current lineup centers on kgateway (the open-source, CNCF-donated Envoy gateway), Gloo Gateway / Solo Enterprise for kgateway (the enterprise distribution built on it), Solo's enterprise Istio and ambient mesh for east-west service mesh, and agentgateway — a Rust-based, AI-native data plane for LLM routing, MCP, and A2A that Solo donated to the Linux Foundation. Solo targets platform engineering teams running these in their own Kubernetes clusters. For Kubernetes ingress, service mesh, and in-cluster AI/agent traffic, Solo.io is a strong fit; for teams that want a fully managed, edge-native platform for external API products — developer portal, key lifecycle, and monetization without operating Kubernetes — Zuplo delivers that as a service. ## Why Choose Zuplo Zuplo is focused on external-facing API products and developer experience. Edge-native architecture, TypeScript programmability, GitOps workflows, and an integrated AI Gateway with MCP support — backed by SOC 2 Type II, managed dedicated deployment, and named regulated customers across insurance, payments, and financial services. ## Feature Comparison ### Compliance and Audit Readiness _First-class managed compliance vs. compliance dependent on customer Kubernetes environment._ - **Zuplo** — SOC 2 Type II audited annually, third-party penetration test reports under NDA, audit logs, GDPR-aligned data processing. - **Solo API Gateway** — Compliance posture inherited from customer-operated Kubernetes environment. ### Enterprise Identity (SSO + RBAC) _Direct SAML/SCIM with project-level RBAC vs. Kubernetes-native identity._ - **Zuplo** — SAML SSO, SCIM provisioning, and RBAC across organizations, projects, and environments. - **Solo API Gateway** — Identity through Kubernetes RBAC and configured providers in the Gloo control plane. ### Managed Dedicated Deployment _Managed dedicated across major clouds vs. self-hosted Kubernetes._ - **Zuplo** — Single-tenant managed deployment on AWS, Azure, GCP, Akamai, or any major cloud with up to a 30-minute response SLA. Self-hosted on Kubernetes also supported. - **Solo API Gateway** — Self-hosted Kubernetes deployment in customer infrastructure. ### AI Gateway and MCP Support _Managed, edge-native AI Gateway and MCP Gateway vs. self-operated agentgateway and MCP Gateway._ - **Zuplo** — Integrated AI Gateway with multi-provider routing, semantic caching, prompt injection protection, budget and token controls. Dedicated MCP Gateway product. Fully managed, edge-native. - **Solo API Gateway** — Strong AI/agent offering via agentgateway (Rust, AI-native), MCP Gateway, and kagent — but software you deploy and operate in your own infrastructure. ### Developer Portal _Hosted, fully managed developer portal vs. self-operated in-cluster Gloo Portal._ - **Zuplo** — Hosted, auto-generated from OpenAPI spec with self-serve API key management, interactive docs, and monetization support — no infrastructure to run. - **Solo API Gateway** — Gloo Portal offers OpenAPI docs and self-service API keys, but it is a component you deploy and operate on your own Kubernetes control plane. ### External API Management Focus _Managed external API product platform vs. self-operated Kubernetes connectivity stack._ - **Zuplo** — Purpose-built and fully managed for external-facing API products: developer portal, API key lifecycle, monetization, AI Gateway, programmable rate limiting. - **Solo API Gateway** — Spans ingress, service mesh, and AI/agent traffic. External API management features exist but are assembled and operated across your own Kubernetes stack. ### Operational Simplicity _Zero-ops managed gateway vs. Kubernetes + Envoy + Istio operations._ - **Zuplo** — Fully managed and serverless across 300+ edge locations. Zero Kubernetes operations. - **Solo API Gateway** — Runs in your own Kubernetes with Envoy or agentgateway data planes, Istio (for service mesh), kgateway, and Helm chart management. ### Developer Experience _TypeScript and OpenAPI vs. Kubernetes Gateway API YAML and data-plane extensions._ - **Zuplo** — TypeScript policies with full IDE support, npm ecosystem, and OpenAPI-native config. - **Solo API Gateway** — Kubernetes Gateway API and CRD-based YAML config, with custom logic in the Envoy/Rust data planes. ### API Key Management _Managed, hosted key lifecycle vs. self-operated in-cluster key management._ - **Zuplo** — Full lifecycle management with a hosted, self-serve developer portal. - **Solo API Gateway** — Self-service API keys and usage plans via Gloo Portal, operated in your own cluster. ### API Monetization _Built-in monetization vs. usage tracking that you wire to your own billing._ - **Zuplo** — Built-in usage-based billing (monetization in beta). - **Solo API Gateway** — Usage tracking, showback/chargeback, and analytics via Gloo Portal; billing requires integrating your own provider. ### Service Mesh Support _External API focus vs. full Istio service mesh capabilities._ - **Zuplo** — Focus on north-south external API traffic. Backends can run behind any service mesh. - **Solo API Gateway** — Full Istio-based service mesh, including ambient mode, for east-west traffic. ## FAQ **How does Zuplo handle SOC 2, SSO, and audit logs for regulated customers?** Zuplo is SOC 2 Type II audited annually with reports available under NDA. Enterprise includes SAML SSO, SCIM provisioning, RBAC across organizations and projects, and audit logs across the control plane. **Which enterprises run production workloads on Zuplo?** Zuplo runs production API traffic for regulated and high-volume enterprises including Duck Creek Payments (insurance and payments), Finsolutia (mortgage servicing across Europe), Blockdaemon (blockchain infrastructure serving billions of API calls per month), AccuWeather, and Hearsay (Yext). **When should I choose Solo.io / Gloo over Zuplo?** Solo.io is a strong choice when you want Kubernetes ingress, an Istio-based service mesh, and an in-cluster AI/agent data plane (agentgateway, kagent) all running inside your own clusters — kgateway and Gloo Gateway for ingress, Solo's mesh for east-west. For teams that want a fully managed, edge-native platform for external API products — hosted developer portal, key lifecycle, monetization, and AI Gateway with no Kubernetes to operate — Zuplo is the better fit. Many teams use both: Gloo for internal traffic, Zuplo for external API products. **How does Zuplo's AI Gateway compare to Gloo's AI capabilities?** Both are credible. Solo ships agentgateway — a Rust-based, AI-native data plane for LLM routing, MCP, and A2A — plus a dedicated MCP Gateway and the kagent project, several of which it donated to the Linux Foundation and CNCF. The difference is the delivery model: Solo's are self-hosted software you operate — standalone or on Kubernetes — while Zuplo provides an equivalent AI Gateway (multi-provider routing, semantic caching, prompt-injection protection, budget and token controls) and MCP Gateway as a fully managed, edge-native service. **Does Zuplo require Kubernetes?** No. Zuplo is fully managed — no Kubernetes, Envoy, or Istio to operate. Self-hosted on Kubernetes is available when full data residency and operational ownership are required. **How does Zuplo's TCO compare to Solo.io / Gloo?** For external API management, Zuplo Enterprise replaces the operational cost of deploying and running Gloo Portal, API key lifecycle, monetization, and an AI Gateway on your own Kubernetes — plus the broader cluster-operations burden — with a single managed contract. Internal east-west service mesh is a different use case where Gloo remains a strong choice.