KrakenD

KrakenD is a stateless, distributed, high-performance open-source API gateway written in Go, focused on API aggregation, transformation, and security with a declarative configuration approach.

KrakenD publishes 3 APIs on the APIs.io network: Debug API, Health API, and Metrics API. Tagged areas include Aggregation, API Gateway, Go, and Open-Source.

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

KrakenD’s developer surface includes documentation, getting-started guide, engineering blog, changelog, Stack Overflow tag, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.0/100 thin ▬ flat Agent 21/100 agent aware self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs 1 MCP Servers

Aggregation API Gateway Go Open-Source

Kin Score

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

Composite quality — 39.0/100 · thin

Contract Quality 10.3 / 20

Developer Ergonomics 5.3 / 16

Access Clarity 2.1 / 16

Operational Transparency 3.8 / 10

Contract Governance 0.9 / 10

Discoverability 3.8 / 8

Open Source Surface 10.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 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/krakend: 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 5

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

KrakenD

KrakenD Community Edition is an ultra-high performance API gateway that aggregates multiple service calls into a single endpoint, transforming and filtering responses with a dec...

KrakenD Async Agent

The KrakenD Async Agent enables event-driven API consumption by connecting KrakenD to message brokers and event queues such as AMQP, Kafka, and NATS. It allows KrakenD to consum...

KrakenD Debug API

The Debug API from KrakenD — 2 operation(s) for debug.

KrakenD Health API

The Health API from KrakenD — 1 operation(s) for health.

KrakenD Metrics API

The Metrics API from KrakenD — 1 operation(s) for metrics.

Open Collections 5

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

API Collection

OPEN COLLECTION

KrakenD Service Debug API

OPEN COLLECTION

KrakenD Service Debug Health API

OPEN COLLECTION

KrakenD Service Debug Metrics API

OPEN COLLECTION

KrakenD Service API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Krakend Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Krakend Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Krakend Finops

FINOPS

Semantic Vocabularies 1

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

Krakend Context

0 classes · 6 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

KrakenD API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 6

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

KrakenD Async Agent

6 properties

JSON SCHEMA

KrakenD Backend

12 properties

JSON SCHEMA

KrakenD Endpoint

12 properties

JSON SCHEMA

KrakenD Plugin Configuration

2 properties

JSON SCHEMA

KrakenD Service Configuration

17 properties

JSON SCHEMA

KrakenD TLS Configuration

10 properties

JSON SCHEMA

Security Posture 1

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

Krakend Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Krakend Agentic Access

5 operations · 1 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 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 4

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Developer Tools

Developer Tools

Access & Security 2

Authentication, authorization, and security posture

SecurityPolicy

SecurityPolicy

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

ChangeLog

Community

StackOverflow

Issue Tracker

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: krakend
name: KrakenD
description: KrakenD is a stateless, distributed, high-performance open-source API gateway written in Go, focused on API aggregation,
  transformation, and security with a declarative configuration approach.
type: Index
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
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/krakend.png
tags:
- Aggregation
- API Gateway
- Go
- Open-Source
tags_raw:
- Aggregation
- API Gateway
- Go
- Open Source
url: https://raw.githubusercontent.com/api-evangelist/krakend/refs/heads/main/apis.yml
created: '2026-03-18'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: krakend:krakend
  name: KrakenD
  description: KrakenD Community Edition is an ultra-high performance API gateway that aggregates multiple service calls into
    a single endpoint, transforming and filtering responses with a declarative JSON configuration.
  humanURL: https://www.krakend.io/
  tags:
  - Aggregation
  - API Gateway
  - Go
  properties:
  - type: Documentation
    url: https://www.krakend.io/docs/overview/
  - type: GettingStarted
    url: https://www.krakend.io/docs/overview/introduction/
  - type: Reference
    url: https://www.krakend.io/docs/configuration/structure/
  - type: ChangeLog
    url: https://github.com/krakend/krakend-ce/releases
  - type: GitHubRepository
    url: https://github.com/krakend/krakend-ce
  - type: JSONSchema
    url: json-schema/service-config.json
  - type: JSONLD
    url: json-ld/krakend-context.jsonld
- aid: krakend:krakend-async-agent
  name: KrakenD Async Agent
  description: The KrakenD Async Agent enables event-driven API consumption by connecting KrakenD to message brokers and event
    queues such as AMQP, Kafka, and NATS. It allows KrakenD to consume messages from topics and queues and forward them to
    backend services without requiring an inbound HTTP request from a client.
  humanURL: https://www.krakend.io/docs/async/
  tags:
  - Async
  - Event-Driven
  - Kafka
  - Messaging
  properties:
  - type: Documentation
    url: https://www.krakend.io/docs/async/
  - type: Reference
    url: https://www.krakend.io/docs/async/amqp/
  - type: JSONSchema
    url: json-schema/async-agent.json
  - type: GitHubRepository
    url: https://github.com/krakend/krakend-ce
- aid: krakend:krakend-debug-api
  name: KrakenD Debug API
  description: The Debug API from KrakenD — 2 operation(s) for debug.
  humanURL: https://www.krakend.io/
  baseURL: http://localhost:8080
  tags:
  - Debug
  properties:
  - type: OpenAPI
    url: openapi/krakend-debug-api-openapi.yml
  - type: Documentation
    url: https://www.krakend.io/docs/service-settings/health/
  - type: Reference
    url: https://www.krakend.io/docs/service-settings/debug-endpoint/
- aid: krakend:krakend-health-api
  name: KrakenD Health API
  description: The Health API from KrakenD — 1 operation(s) for health.
  humanURL: https://www.krakend.io/
  baseURL: http://localhost:8080
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/krakend-health-api-openapi.yml
  - type: Documentation
    url: https://www.krakend.io/docs/service-settings/health/
  - type: Reference
    url: https://www.krakend.io/docs/service-settings/debug-endpoint/
- aid: krakend:krakend-metrics-api
  name: KrakenD Metrics API
  description: The Metrics API from KrakenD — 1 operation(s) for metrics.
  humanURL: https://www.krakend.io/
  baseURL: http://localhost:8080
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/krakend-metrics-api-openapi.yml
  - type: Documentation
    url: https://www.krakend.io/docs/service-settings/health/
  - type: Reference
    url: https://www.krakend.io/docs/service-settings/debug-endpoint/
common:
- type: SecurityPolicy
  url: https://github.com/krakend/krakend-ce/blob/master/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/krakend/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/krakend/.github/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/krakend/krakend-ce/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/krakend-agentic-access.yml
- type: DomainSecurity
  url: security/krakend-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/krakend
- type: Website
  url: https://www.krakend.io/
- type: Documentation
  url: https://www.krakend.io/docs/
- type: GettingStarted
  url: https://www.krakend.io/docs/overview/introduction/
- type: Blog
  url: https://www.krakend.io/blog/
- type: ChangeLog
  url: https://github.com/krakend/krakend-ce/releases
- type: GitHubOrganization
  url: https://github.com/krakend
- type: GitHubRepository
  url: https://github.com/krakend/krakend-ce
- type: Community
  url: https://community.krakend.io/
- type: StackOverflow
  url: https://stackoverflow.com/questions/tagged/krakend
- type: Issue Tracker
  url: https://github.com/krakend/krakend-ce/issues
- type: Developer Tools
  url: https://designer.krakend.io/
- type: JSONSchema
  url: json-schema/service-config.json
- type: JSONLD
  url: json-ld/krakend-context.jsonld
- type: Integrations
  url: https://www.krakend.io/partners/
- name: MCP Server
  url: https://github.com/krakend/mcp-server
  type: MCPServer
integrations:
- name: KrakenD API Gateway
- name: Single.Earth image
- name: Software Architect, Single.Earth
- name: lastminute.com image
- name: Enterprise Architecture, lastminute.com
- name: Coop Atlantique image
- name: Senior Engineer, Coop Atlantique
- name: Background Pattern
- name: logo partner Torry Harris
- name: logo partner Massil Technologies
- name: logo partner Convert Digital
- name: logo partner CloudAPPi
- name: logo partner Target Solutions
- name: logo partner Beat
- name: logo partner Nusaprima
- name: logo partner SETSIBI
- name: logo partner Carahsoft
- name: logo partner Litis
- name: logo partner OSC Korea
- name: logo partner Skalena
- name: logo partner Ardanlabs
- name: logo partner Cogitosoft
- name: Background
- name: logo partner Microsoft
- name: logo partner Amazon Web Services
- name: logo partner Auth0
- name: logo partner Moesif
- name: icon
- name: SOC Certification
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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