Emissary-Ingress

Emissary-Ingress is a CNCF incubating Kubernetes-native API gateway built on the Envoy proxy. It provides ingress control, load balancing, authentication, rate limiting, and traffic management for microservices. Emissary-Ingress is configured through Kubernetes custom resources and supports canary releases, circuit breaking, and automatic retries.

Emissary-Ingress publishes 5 APIs on the APIs.io network, including AuthService API, Host API, Mapping API, and 2 more. Tagged areas include API Gateway, Cloud-Native, Envoy, Incubating, and Ingress.

The Emissary-Ingress catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Emissary-Ingress’ developer surface includes documentation, getting-started guide, support, engineering blog, changelog, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

32.4/100 thin ▬ flat Agent 20/100 agent aware self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs

API Gateway Cloud-Native Envoy Incubating Ingress Kubernetes

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 32.4/100 · thin

Contract Quality 11.9 / 20

Developer Ergonomics 3.2 / 16

Access Clarity 2.5 / 16

Operational Transparency 1.1 / 10

Contract Governance 0.9 / 10

Discoverability 5.3 / 8

Open Source Surface 5.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/emissary-ingress: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Emissary-Ingress Gateway API

Emissary-Ingress supports a subset of the Kubernetes Gateway API standard, including GatewayClass, Gateway, and HTTPRoute resources. This enables teams to use the next-generatio...

Emissary-Ingress AuthService API

Operations for managing AuthService custom resources that configure external authentication and authorization services. Emissary-Ingress will call the configured auth service be...

Emissary-Ingress Host API

Operations for managing Host custom resources that configure domain names, TLS certificate management via ACME/Let's Encrypt, and TLS termination for ingress traffic. A Host bin...

Emissary-Ingress Mapping API

Operations for managing Mapping custom resources that define routing rules for inbound HTTP/HTTPS traffic. A Mapping connects a URL path or prefix to a backend Kubernetes servic...

Emissary-Ingress RateLimitService API

Operations for managing RateLimitService custom resources that configure integration with external rate limiting services compatible with the Envoy rate limit API.

Emissary-Ingress TLSContext API

Operations for managing TLSContext custom resources that define reusable TLS configuration including certificates, cipher suites, minimum protocol versions, and client certifica...

Open Collections 7

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Emissary-Ingress Configuration AuthService API

OPEN COLLECTION

Emissary-Ingress Configuration AuthService Host API

OPEN COLLECTION

Emissary-Ingress Configuration AuthService Mapping API

OPEN COLLECTION

Emissary-Ingress Configuration AuthService RateLimitService API

OPEN COLLECTION

Emissary-Ingress Configuration AuthService TLSContext API

OPEN COLLECTION

Emissary-Ingress Configuration API

OPEN COLLECTION

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Emissary Ingress Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Emissary Ingress Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Emissary Ingress Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Emissary Ingress Context

0 classes · 10 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Emissary-Ingress API Rules

6 rules · 5 warnings 1 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Emissary-Ingress Mapping

5 properties

JSON SCHEMA

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Emissary Ingress Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Emissary Ingress Agentic Access

20 operations · 11 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

Releases

Support

Community

Issue Tracker

ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Source (apis.yml)

aid: emissary-ingress
name: Emissary-Ingress
description: Emissary-Ingress is a CNCF incubating Kubernetes-native API gateway built on the Envoy proxy. It provides ingress
  control, load balancing, authentication, rate limiting, and traffic management for microservices. Emissary-Ingress is configured
  through Kubernetes custom resources and supports canary releases, circuit breaking, and automatic retries.
url: https://www.getambassador.io/products/api-gateway
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  - url: https://www.getambassador.io/products/api-gateway
    status: 301
    note: declared website redirects to https://landing.gravitee.io/gravitee-edge-stack-unified-api-visibility-and-governance
      — a different registrable domain (getambassador.io -> gravitee.io), possible rename or acquisition (probed 2026-09-03,
      roadmap#169)
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/emissary-ingress.png
tags:
- API Gateway
- Cloud-Native
- Envoy
- Incubating
- Ingress
- Kubernetes
tags_raw:
- API Gateway
- Cloud Native
- Envoy
- Incubating
- Ingress
- Kubernetes
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
apis:
- aid: emissary-ingress:emissary-ingress-gateway-api
  name: Emissary-Ingress Gateway API
  description: Emissary-Ingress supports a subset of the Kubernetes Gateway API standard, including GatewayClass, Gateway,
    and HTTPRoute resources. This enables teams to use the next-generation Kubernetes ingress standard for defining routing
    rules, with support for path matching, header matching, and weighted load balancing across backend services.
  humanURL: https://emissary-ingress.dev/docs/3.8/topics/using/gateway-api/
  properties:
  - type: Documentation
    url: https://emissary-ingress.dev/docs/3.8/topics/using/gateway-api/
  tags:
  - Gateway API
  - HTTPRoute
  - Kubernetes
  - Routing
- aid: emissary-ingress:emissary-ingress-authservice-api
  name: Emissary-Ingress AuthService API
  description: Operations for managing AuthService custom resources that configure external authentication and authorization
    services. Emissary-Ingress will call the configured auth service before forwarding requests to upstream services.
  humanURL: https://www.getambassador.io/docs/emissary/
  tags:
  - AuthService
  properties:
  - type: OpenAPI
    url: openapi/emissary-ingress-authservice-api-openapi.yml
  - type: Documentation
    url: https://www.getambassador.io/docs/emissary/
  - type: GettingStarted
    url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
  - type: Reference
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/
  - type: ChangeLog
    url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
  - type: JSONSchema
    url: json-schema/emissary-ingress-mapping-schema.json
  - type: Authentication
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/auth-service
  - type: RateLimits
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/rate-limit-service
- aid: emissary-ingress:emissary-ingress-host-api
  name: Emissary-Ingress Host API
  description: Operations for managing Host custom resources that configure domain names, TLS certificate management via ACME/Let's
    Encrypt, and TLS termination for ingress traffic. A Host binds a hostname to TLS configuration and controls HTTPS redirect
    behavior.
  humanURL: https://www.getambassador.io/docs/emissary/
  tags:
  - Hosts
  tags_raw:
  - Host
  properties:
  - type: OpenAPI
    url: openapi/emissary-ingress-host-api-openapi.yml
  - type: Documentation
    url: https://www.getambassador.io/docs/emissary/
  - type: GettingStarted
    url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
  - type: Reference
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/
  - type: ChangeLog
    url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
  - type: JSONSchema
    url: json-schema/emissary-ingress-mapping-schema.json
  - type: Authentication
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/auth-service
  - type: RateLimits
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/rate-limit-service
- aid: emissary-ingress:emissary-ingress-mapping-api
  name: Emissary-Ingress Mapping API
  description: Operations for managing Mapping custom resources that define routing rules for inbound HTTP/HTTPS traffic.
    A Mapping connects a URL path or prefix to a backend Kubernetes service with support for header matching, rewriting, timeouts,
    retries, and traffic weighting.
  humanURL: https://www.getambassador.io/docs/emissary/
  tags:
  - Mapping
  properties:
  - type: OpenAPI
    url: openapi/emissary-ingress-mapping-api-openapi.yml
  - type: Documentation
    url: https://www.getambassador.io/docs/emissary/
  - type: GettingStarted
    url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
  - type: Reference
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/
  - type: ChangeLog
    url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
  - type: JSONSchema
    url: json-schema/emissary-ingress-mapping-schema.json
  - type: Authentication
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/auth-service
  - type: RateLimits
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/rate-limit-service
- aid: emissary-ingress:emissary-ingress-ratelimitservice-api
  name: Emissary-Ingress RateLimitService API
  description: Operations for managing RateLimitService custom resources that configure integration with external rate limiting
    services compatible with the Envoy rate limit API.
  humanURL: https://www.getambassador.io/docs/emissary/
  tags:
  - RateLimitService
  properties:
  - type: OpenAPI
    url: openapi/emissary-ingress-ratelimitservice-api-openapi.yml
  - type: Documentation
    url: https://www.getambassador.io/docs/emissary/
  - type: GettingStarted
    url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
  - type: Reference
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/
  - type: ChangeLog
    url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
  - type: JSONSchema
    url: json-schema/emissary-ingress-mapping-schema.json
  - type: Authentication
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/auth-service
  - type: RateLimits
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/rate-limit-service
- aid: emissary-ingress:emissary-ingress-tlscontext-api
  name: Emissary-Ingress TLSContext API
  description: Operations for managing TLSContext custom resources that define reusable TLS configuration including certificates,
    cipher suites, minimum protocol versions, and client certificate validation settings.
  humanURL: https://www.getambassador.io/docs/emissary/
  tags:
  - TLSContext
  properties:
  - type: OpenAPI
    url: openapi/emissary-ingress-tlscontext-api-openapi.yml
  - type: Documentation
    url: https://www.getambassador.io/docs/emissary/
  - type: GettingStarted
    url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
  - type: Reference
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/
  - type: ChangeLog
    url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
  - type: JSONSchema
    url: json-schema/emissary-ingress-mapping-schema.json
  - type: Authentication
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/auth-service
  - type: RateLimits
    url: https://www.getambassador.io/docs/emissary/latest/topics/running/services/rate-limit-service
common:
- type: Releases
  url: https://github.com/emissary-ingress/emissary/releases
- type: ContributionGuide
  url: https://github.com/emissary-ingress/emissary/blob/main/.github/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/emissary-ingress/emissary/blob/main/LICENSE
- type: ParentCompany
  name: Gravitee
  url: https://www.gravitee.io/
- type: AgenticAccess
  url: agentic-access/emissary-ingress-agentic-access.yml
- type: DomainSecurity
  url: security/emissary-ingress-domain-security.yml
- type: Website
  url: https://www.getambassador.io/products/api-gateway
- type: Documentation
  url: https://www.getambassador.io/docs/emissary/
- type: GettingStarted
  url: https://www.getambassador.io/docs/emissary/latest/topics/install/yaml-install
- type: GitHubOrganization
  url: https://github.com/emissary-ingress
- type: GitHubRepository
  url: https://github.com/emissary-ingress/emissary
- type: Support
  url: https://www.getambassador.io/docs/emissary/latest/about/support
- type: Community
  url: https://emissary-ingress.dev/docs/4.0/community/
- type: Issue Tracker
  url: https://github.com/emissary-ingress/emissary/issues
- type: Blog
  url: https://blog.getambassador.io/
- type: ChangeLog
  url: https://archive.getambassador.io/docs/emissary/3.1/release-notes/
- type: JSONLD
  url: json-ld/emissary-ingress-context.jsonld
- type: JSONSchema
  url: json-schema/emissary-ingress-mapping-schema.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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