Ambassador
Ambassador is a Kubernetes-native API Gateway built on Envoy Proxy, providing routing, load balancing, authentication, and observability for microservices.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Ambassador the way a machine reads it — 152 machine-readable artifacts across 11 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Ambassador scores 58.2/100 (developing), with a separate agent-readiness read of 48/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Ambassador
Each block below is one kind of artifact we hold for Ambassador. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 11
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Ambassador
Ambassador offers a suite of products designed to deliver API developer experiences that fuel innovation. These products, Blackbird API Development Platform, Edge Stack API Gate...
Emissary-Ingress
Emissary-Ingress is an open-source, Kubernetes-native API gateway built on Envoy Proxy and a CNCF incubating project, formerly known as Ambassador API Gateway. It uses custom re...
Ambassador Telepresence RESTful API
Telepresence provides a RESTful API server that runs on the local host, both on the local workstation and in a pod that contains a traffic-agent. The API includes healthz, consu...
Ambassador Blackbird API Development Platform
Blackbird is an API development platform that helps developers design, build, test, and manage APIs with AI-powered code generation, mocking, and production-like test environmen...
Ambassador Edge Stack Developer Portal
The Ambassador Edge Stack Developer Portal automatically detects and publishes API documentation, serving as a single point of reference for all microservice APIs. It supports S...
Ambassador Diagnostics API
Access diagnostic and health check endpoints for monitoring Ambassador Edge Stack operational status.
Ambassador Hosts API
Manage Host resources that configure TLS termination, ACME certificate management, and hostname-based routing rules.
Ambassador Mappings API
Manage Mapping resources that associate URL prefixes or paths with backend services. Mappings are the core routing mechanism in Ambassador.
Ambassador Modules API
Manage Ambassador Module resources for global configuration of the Ambassador gateway including diagnostics, tracing, and circuit breaking.
Ambassador RateLimits API
Manage rate limiting configuration for controlling request throughput to backend services using labels and descriptors.
Ambassador TLSContexts API
Manage TLSContext resources that configure TLS settings for Ambassador, including certificates, protocols, and cipher suites.
Scroll within the panel for all 11 ·
Open Collections 1
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Ambassador Edge Stack API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Ambassador Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Ambassador Finops
FINOPSFeatures 7
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Kubernetes-Native API Gateway
Purpose-built for Kubernetes with custom resource definitions (CRDs) for declarative configuration of routing, TLS, and rate limiting.
Envoy Proxy Foundation
Built on Envoy Proxy for high-performance load balancing, circuit breaking, and observability at the edge.
Authentication and Security
Integrated OAuth2, API key, and JWT-based authentication filters to secure API endpoints without custom code.
Rate Limiting
Configurable rate limiting with labels and descriptors to control request throughput to backend services.
Developer Portal
Automatic API documentation publishing from OpenAPI/Swagger specs with customizable developer portal for onboarding.
Local Development with Telepresence
Intercept and debug remote Kubernetes services locally using Telepresence for fast inner-loop development.
API Mocking with Blackbird
AI-powered API development platform with mock servers and production-like test environments for rapid iteration.
Scroll within the panel for all 7 ·
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Ambassador Context
JSON-LDSpectral Rules 2
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Ambassador API Rules
SPECTRALAmbassador API Rules
SPECTRALJSON Schema 45
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
CircuitBreaker
JSON SCHEMACircuitBreaker
JSON SCHEMACORSPolicy
JSON SCHEMACORSPolicy
JSON SCHEMADiagnosticsOverview
JSON SCHEMADiagnosticsOverview
JSON SCHEMAHostList
JSON SCHEMAHost
JSON SCHEMAHostSpec
JSON SCHEMAHostStatus
JSON SCHEMAHostList
JSON SCHEMAHostSpec
JSON SCHEMAHostStatus
JSON SCHEMALoadBalancer
JSON SCHEMALoadBalancer
JSON SCHEMAMappingList
JSON SCHEMAMapping
JSON SCHEMAMappingSpec
JSON SCHEMAMappingStatus
JSON SCHEMAMappingList
JSON SCHEMAMappingSpec
JSON SCHEMAMappingStatus
JSON SCHEMAModuleList
JSON SCHEMAModule
JSON SCHEMAModuleSpec
JSON SCHEMAModuleList
JSON SCHEMAModuleSpec
JSON SCHEMAObjectMeta
JSON SCHEMAObjectMeta
JSON SCHEMARateLimitList
JSON SCHEMARateLimitRule
JSON SCHEMARateLimit
JSON SCHEMARateLimitSpec
JSON SCHEMARateLimit
JSON SCHEMARateLimitList
JSON SCHEMARateLimitRule
JSON SCHEMARateLimitSpec
JSON SCHEMARetryPolicy
JSON SCHEMARetryPolicy
JSON SCHEMATLSContextList
JSON SCHEMATLSContext
JSON SCHEMATLSContextSpec
JSON SCHEMATLSContext
JSON SCHEMATLSContextList
JSON SCHEMATLSContextSpec
JSON SCHEMAScroll within the panel for all 45 ·
JSON Structure 25
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Ambassador Circuit Breaker Structure
JSON STRUCTUREAmbassador Cors Policy Structure
JSON STRUCTUREAmbassador Diagnostics Overview Structure
JSON STRUCTUREAmbassador Host List Structure
JSON STRUCTUREAmbassador Host Spec Structure
JSON STRUCTUREAmbassador Host Status Structure
JSON STRUCTUREAmbassador Host Structure
JSON STRUCTUREAmbassador Load Balancer Structure
JSON STRUCTUREAmbassador Mapping List Structure
JSON STRUCTUREAmbassador Mapping Spec Structure
JSON STRUCTUREAmbassador Mapping Status Structure
JSON STRUCTUREAmbassador Mapping Structure
JSON STRUCTUREAmbassador Module List Structure
JSON STRUCTUREAmbassador Module Spec Structure
JSON STRUCTUREAmbassador Module Structure
JSON STRUCTUREAmbassador Object Meta Structure
JSON STRUCTUREAmbassador Rate Limit List Structure
JSON STRUCTUREAmbassador Rate Limit Rule Structure
JSON STRUCTUREAmbassador Rate Limit Spec Structure
JSON STRUCTUREAmbassador Rate Limit Structure
JSON STRUCTUREAmbassador Retry Policy Structure
JSON STRUCTUREAmbassador Structure
JSON STRUCTUREAmbassador Tls Context List Structure
JSON STRUCTUREAmbassador Tls Context Spec Structure
JSON STRUCTUREAmbassador Tls Context Structure
JSON STRUCTUREScroll within the panel for all 25 ·
Examples 44
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Ambassador Gethost Example
EXAMPLEAmbassador Getmodule Example
EXAMPLEAmbassador Host Example
EXAMPLEAmbassador Host List Example
EXAMPLEAmbassador Host Spec Example
EXAMPLEAmbassador Listhosts Example
EXAMPLEAmbassador Mapping Example
EXAMPLEAmbassador Module Example
EXAMPLEScroll within the panel for all 44 ·
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Microservices API Gateway
Route, secure, and observe traffic to microservices running in Kubernetes clusters.
API Development and Testing
Design, mock, and test APIs locally with Blackbird before deploying to Kubernetes environments.
Multi-Team API Management
Enable multiple teams to independently manage their API routing and configuration using Kubernetes CRDs.
Service Mesh Edge Gateway
Serve as the edge gateway in a service mesh architecture, handling north-south traffic with TLS termination.
Developer Onboarding
Provide a self-service developer portal for internal and external developers to discover and consume APIs.
Integrations 5
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
Kubernetes
Native integration with Kubernetes using CRDs for Mapping, Host, TLSContext, and RateLimit resources.
Envoy Proxy
Built on Envoy Proxy with full access to Envoy's load balancing, circuit breaking, and observability features.
Helm
Install and manage Ambassador Edge Stack using Helm charts for Kubernetes deployments.
Prometheus and Grafana
Export metrics to Prometheus and visualize API gateway performance in Grafana dashboards.
Cert-Manager
Automatic TLS certificate management via cert-manager and ACME protocol integration.
Resources
Every other property we hold for Ambassador — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/ambassador · machine-readable index on apis.io