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Edge Stack (Ambassador)

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Kubernetes-native Envoy API gateway and ingress controller, now part of Gravitee.

API Management Software
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  • Deployment Cloud Based, On Premises, Hybrid
  • Starting price Free
  • Free trial Not offered
  • Best for SMEs, Agencies, Enterprises

What is Edge Stack (Ambassador)?

Edge Stack, formerly Ambassador Edge Stack, is a Kubernetes-native API gateway and ingress controller built on Envoy Proxy. It provides automatic TLS, authentication (including OAuth/OIDC), rate limiting, WAF integration and fine-grained access control at the edge of Kubernetes clusters, along with a graphical Edge Policy Console and a customizable developer portal with automatic OpenAPI documentation. Its core functionality is open source under the Apache 2.0 license, with some enterprise features such as SSO offered under a proprietary license.

Ambassador Labs was acquired by Gravitee in July 2025, and Edge Stack pricing and packaging are now managed through Gravitee's unified platform rather than a standalone Ambassador pricing page. Because the vendor's public pricing page now redirects to a general Gravitee product page without published tiers, exact current prices could not be independently verified.

Key Features of Edge Stack (Ambassador)

Edge Stack (Ambassador) lists 8 documented features, including Envoy-based Kubernetes-native API gateway and ingress controller, Automatic TLS via ACME integration and OAuth2/OpenID Connect authentication and rate limiting. The list below covers what the product does rather than how it is marketed.

  • Envoy-based Kubernetes-native API gateway and ingress controller
  • Automatic TLS via ACME integration
  • OAuth2/OpenID Connect authentication and rate limiting
  • Edge Policy Console graphical management UI
  • Customizable developer portal with automatic OpenAPI/Swagger docs
  • Listener and Mapping CRDs for fine-grained traffic routing
  • WAF integration and fine-grained access control
  • Open source core (Apache 2.0) with proprietary enterprise add-ons

Edge Stack (Ambassador) Pricing

Edge Stack (Ambassador) lists 2 plans. One is free; the rest are quoted on request.

Community (open source core)

Free

No enforced request limits on core gateway

Request pricing

Apache 2.0 licensed core API gateway and ingress controller functionality

Growth / Enterprise

Custom

Priced by requests per month (RPM)

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Adds proprietary features such as SSO; current tiered pricing is not published following the Gravitee acquisition

Edge Stack (Ambassador) Specifications

Edge Stack (Ambassador) is available on web app. It offers an API and has a free plan.

Deployment
  • Cloud Based
  • On Premises
  • Hybrid
Billing cycle
Monthly
Desktop
  • Web App
Languages
  • English
Built for
  • SMEs
  • Agencies
  • Enterprises
Support
  • Email
  • Live Support
  • Tickets
Integrations
Kubernetes, Envoy Proxy, Argo Rollouts, OpenAPI/Swagger, ACME/TLS providers, Gravitee platform
Public API
Yes
Free trial
No
Free plan
Yes
Runs in browser
No
Customisable
Yes
Website
getambassador.io

Edge Stack (Ambassador) Videos

Edge Stack (Ambassador) Screenshots

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Edge Stack (Ambassador) FAQs

Ambassador Labs was acquired by Gravitee in July 2025, and Edge Stack is now offered as part of Gravitee's unified API management platform rather than as a standalone company.

The core Edge Stack functionality is open source under the Apache 2.0 license, though some proprietary add-ons like SSO require a commercial license.

Edge Stack is built on Envoy Proxy and is designed specifically to run as a Kubernetes-native ingress controller and API gateway.

Yes, it includes a customizable developer portal with an API catalog and automatic OpenAPI/Swagger documentation publishing.

Pricing is now handled through Gravitee's sales and pricing pages since the 2025 acquisition; the legacy getambassador.io pricing page redirects there.