Linkerd website screenshot

Linkerd

Service mesh without the mess. Linkerd adds security, observability, and reliability to any Kubernetes cluster without the complexity of bloat of other meshes.

Linkerd publishes 9 APIs on the APIs.io network, including Discovery API, Edges API, Gateways API, and 6 more. Tagged areas include Kubernetes, mTLS, Observability, Security, and Service Mesh.

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

Linkerd’s developer surface includes documentation, getting-started guide, engineering blog, changelog, support, release notes, Stack Overflow tag, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
52.9/100 developing ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
11 APIs
KubernetesmTLSObservabilitySecurityService Mesh

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 52.9/100 · developing
Contract Quality 14.8 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 8.2 / 13
Governance 7.0 / 12
Discoverability 5.6 / 10
Agent readiness — 25/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/linkerd: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 11

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

Linkerd Proxy Control Plane API

The Linkerd Proxy Control Plane gRPC API defines the protobuf service contracts used by the data-plane proxy to communicate with the control plane. It includes the Destination A...

Linkerd Multicluster API

The Linkerd Multicluster extension provides Kubernetes CRDs and a gateway component that enables transparent, secure cross-cluster service communication. It uses mTLS to authent...

Linkerd Discovery API

API resource discovery

Linkerd Edges API

Connection topology between resources

Linkerd Gateways API

Multicluster gateway metrics

Linkerd Health API

Health and readiness check endpoints

Linkerd Lifecycle API

Proxy lifecycle management endpoints

Linkerd Metrics API

Prometheus metrics endpoints

Linkerd Routes API

Per-route metrics

Linkerd Statistics API

Resource statistics and golden metrics

Linkerd Tap API

Real-time traffic inspection

Scroll for all 11

Open Collections 3

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

Linkerd Proxy Admin API

OPEN COLLECTION

Linkerd Tap API

OPEN COLLECTION

Linkerd Viz Metrics API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Linkerd Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Linkerd Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Linkerd Finops

FINOPS

Semantic Vocabularies 1

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

Linkerd Context

0 classes · 6 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Linkerd API Rules

6 rules · 5 warnings 1 info

SPECTRAL

JSON Schema 5

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

Linkerd Edge

5 properties

JSON SCHEMA

Linkerd Gateway

8 properties

JSON SCHEMA

Linkerd ServiceProfile

4 properties

JSON SCHEMA

Linkerd Stat Summary

2 properties

JSON SCHEMA

Linkerd Tap Event

9 properties

JSON SCHEMA

Security Posture 1

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

Linkerd Domain Security

TLSv1.3

SECURITY

Agentic Access 1

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

Linkerd Agentic Access

12 operations · 7 acting · 1 human-in-the-loop

12 operations · 7 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

JSONSchema
JSONSchema
 Documentation
Documentation

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 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Security
Security

Learn 1

Tutorials, courses, talks, and written guidance

YouTube
YouTube

Operate 6

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 Community
Community
 Slack
Slack
 Support
Support
 ReleaseNotes
ReleaseNotes
 StackOverflow
StackOverflow

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: linkerd
name: Linkerd
description: Service mesh without the mess. Linkerd adds security, observability, and reliability to any Kubernetes cluster
  without the complexity of bloat of other meshes.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/linkerd.png
tags:
- Kubernetes
- mTLS
- Observability
- Security
- Service Mesh
created: '2025-08-19'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/linkerd/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: linkerd:proxy-control-plane-api
  name: Linkerd Proxy Control Plane API
  description: The Linkerd Proxy Control Plane gRPC API defines the protobuf service contracts used by the data-plane proxy
    to communicate with the control plane. It includes the Destination API for service discovery and traffic policy, the Identity
    API for issuing mTLS certificates, and the Inbound API for per-port authorization and rate-limiting policies.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://github.com/linkerd/linkerd2-proxy-api
  tags:
  - Control Plane
  - gRPC
  - mTLS
  - Policy
  properties:
  - type: Documentation
    url: https://github.com/linkerd/linkerd2-proxy-api
  - type: Reference
    url: https://linkerd.io/2-edge/reference/authorization-policy/
  - type: GitHubRepository
    url: https://github.com/linkerd/linkerd2-proxy-api
  - type: JSONSchema
    url: json-schema/service-profile.json
- aid: linkerd:multicluster-api
  name: Linkerd Multicluster API
  description: The Linkerd Multicluster extension provides Kubernetes CRDs and a gateway component that enables transparent,
    secure cross-cluster service communication. It uses mTLS to authenticate workloads across cluster boundaries within a
    unified trust domain, allowing services in different clusters to communicate as if they were local.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://linkerd.io/2-edge/features/multicluster/
  properties:
  - type: Documentation
    url: https://linkerd.io/2-edge/features/multicluster/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/multicluster/
  tags:
  - Federation
  - Kubernetes
  - mTLS
  - Multicluster
- aid: linkerd:linkerd-discovery-api
  name: Linkerd Discovery API
  description: API resource discovery
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/linkerd-discovery-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-edges-api
  name: Linkerd Edges API
  description: Connection topology between resources
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Edges
  properties:
  - type: OpenAPI
    url: openapi/linkerd-edges-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-gateways-api
  name: Linkerd Gateways API
  description: Multicluster gateway metrics
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Gateways
  properties:
  - type: OpenAPI
    url: openapi/linkerd-gateways-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-health-api
  name: Linkerd Health API
  description: Health and readiness check endpoints
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/linkerd-health-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-lifecycle-api
  name: Linkerd Lifecycle API
  description: Proxy lifecycle management endpoints
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Lifecycle
  properties:
  - type: OpenAPI
    url: openapi/linkerd-lifecycle-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-metrics-api
  name: Linkerd Metrics API
  description: Prometheus metrics endpoints
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/linkerd-metrics-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-routes-api
  name: Linkerd Routes API
  description: Per-route metrics
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Routes
  properties:
  - type: OpenAPI
    url: openapi/linkerd-routes-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-statistics-api
  name: Linkerd Statistics API
  description: Resource statistics and golden metrics
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Statistics
  properties:
  - type: OpenAPI
    url: openapi/linkerd-statistics-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
- aid: linkerd:linkerd-tap-api
  name: Linkerd Tap API
  description: Real-time traffic inspection
  humanURL: https://linkerd.io/2-edge/reference/proxy-configuration/
  baseURL: http://localhost:4191
  tags:
  - Tap
  properties:
  - type: OpenAPI
    url: openapi/linkerd-tap-api-openapi.yml
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/proxy-configuration/
  - type: Reference
    url: https://linkerd.io/2-edge/reference/proxy-metrics/
  - type: Documentation
    url: https://linkerd.io/2-edge/reference/cli/viz/
  - type: JSONSchema
    url: json-schema/stat-summary.json
  - type: JSONSchema
    url: json-schema/edge.json
  - type: JSONSchema
    url: json-schema/gateway.json
  - type: JSONLD
    url: json-ld/linkerd-context.jsonld
  - type: JSONSchema
    url: json-schema/tap-event.json
common:
- type: AgenticAccess
  url: agentic-access/linkerd-agentic-access.yml
- type: DomainSecurity
  url: security/linkerd-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/linkerd
- type: JSONLD
  url: json-ld/linkerd-context.jsonld
- type: JSONSchema
  url: json-schema/service-profile.json
- type: Website
  url: https://linkerd.io/
- type: Documentation
  url: https://linkerd.io/2.19/reference/
- type: GettingStarted
  url: https://linkerd.io/2.19/getting-started/
- type: GitHubOrganization
  url: https://github.com/linkerd
- type: GitHubRepository
  url: https://github.com/linkerd/linkerd2
- type: Blog
  url: https://linkerd.io/blog/
- type: ChangeLog
  url: https://github.com/linkerd/linkerd2/blob/main/CHANGES.md
- type: Community
  url: https://linkerd.io/community/get-involved/
- type: Slack
  url: https://slack.linkerd.io/
- type: Support
  url: https://linkerd.buoyant.io/
- type: ReleaseNotes
  url: https://github.com/linkerd/linkerd2/releases
- type: Security
  url: https://github.com/linkerd/linkerd2/blob/main/SECURITY.md
- type: StackOverflow
  url: https://stackoverflow.com/questions/tagged/linkerd
- type: YouTube
  url: https://www.youtube.com/@Linkerd
- type: PrivacyPolicy
  url: https://buoyant.io/privacy-policy
- type: TermsOfService
  url: https://buoyant.io/terms-of-service
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com