K6 website screenshot

K6

k6 is an open source load testing tool by Grafana Labs for testing the performance and reliability of APIs using JavaScript-based test scripts.

K6 publishes 5 APIs on the APIs.io network, including Load tests API, Load zones API, Projects API, and 2 more. Tagged areas include Load Testing and Testing.

K6’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
29.9/100 thin ▬ flat Agent 35/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemiumSelf serve⚡ Free to try
6 APIs
Load TestingTesting

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 29.9/100 · thin
Contract Quality 14.0 / 25
Developer Ergonomics 4.8 / 20
Access Clarity 3.2 / 20
Operational Transparency 3.4 / 13
Contract Governance 0.0 / 12
Discoverability 4.6 / 10
Agent readiness — 35/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 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 4 / 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/k6: 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 6

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

K6

k6 is an open source load testing tool by Grafana Labs for testing the performance and reliability of APIs using JavaScript-based test scripts.

K6 Load tests API

Configure and manage load-testing resources.

K6 Load zones API

Manage geographic load-generation zones.

K6 Projects API

Manage k6 projects within a Grafana stack.

K6 Schedules API

Manage scheduled load-test execution.

K6 Test runs API

Inspect and control load-test execution runs.

Open Collections 7

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

API Collection

OPEN COLLECTION

Grafana Cloud k6 REST Load tests API

OPEN COLLECTION

Grafana Cloud k6 REST Load tests Load zones API

OPEN COLLECTION

Grafana Cloud k6 REST Load tests Projects API

OPEN COLLECTION

Grafana Cloud k6 REST Load tests Schedules API

OPEN COLLECTION

Grafana Cloud k6 REST Load tests Test runs API

OPEN COLLECTION

Grafana Cloud k6 REST API

OPEN COLLECTION

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

K6 Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

K6 Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

K6 Finops

FINOPS

Security Posture 2

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

K6 Authentication

http · 1 scheme

SECURITY

K6 Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

K6 Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide
ContributionGuide
 Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 2

SDKs, sample code, and the tooling you integrate with

CodeOfConduct
CodeOfConduct
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 Releases
Releases

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: k6
name: K6
description: k6 is an open source load testing tool by Grafana Labs for testing the performance and reliability of APIs using
  JavaScript-based test scripts.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/k6.png
tags:
- Load Testing
- Testing
url: https://raw.githubusercontent.com/api-evangelist/k6/refs/heads/main/apis.yml
created: '2026-03-25'
modified: '2026-04-28'
specificationVersion: '0.23'
apis:
- aid: k6:k6
  name: K6
  description: k6 is an open source load testing tool by Grafana Labs for testing the performance and reliability of APIs
    using JavaScript-based test scripts.
  humanURL: https://k6.io
  tags:
  - Load Testing
  - Testing
  properties:
  - type: Documentation
    url: https://grafana.com/docs/k6/latest/
  - type: GitHubRepository
    url: https://github.com/grafana/k6
- aid: k6:k6-load-tests-api
  name: K6 Load tests API
  description: Configure and manage load-testing resources.
  humanURL: https://k6.io
  tags:
  - Load tests
  properties:
  - type: OpenAPI
    url: openapi/k6-load-tests-api-openapi.yml
- aid: k6:k6-load-zones-api
  name: K6 Load zones API
  description: Manage geographic load-generation zones.
  humanURL: https://k6.io
  tags:
  - Load zones
  properties:
  - type: OpenAPI
    url: openapi/k6-load-zones-api-openapi.yml
- aid: k6:k6-projects-api
  name: K6 Projects API
  description: Manage k6 projects within a Grafana stack.
  humanURL: https://k6.io
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/k6-projects-api-openapi.yml
- aid: k6:k6-schedules-api
  name: K6 Schedules API
  description: Manage scheduled load-test execution.
  humanURL: https://k6.io
  tags:
  - Schedules
  properties:
  - type: OpenAPI
    url: openapi/k6-schedules-api-openapi.yml
- aid: k6:k6-test-runs-api
  name: K6 Test runs API
  description: Inspect and control load-test execution runs.
  humanURL: https://k6.io
  tags:
  - Test Runs
  tags_raw:
  - Test runs
  properties:
  - type: OpenAPI
    url: openapi/k6-test-runs-api-openapi.yml
common:
- type: IssueTracker
  url: https://github.com/grafana/k6/issues
- type: Releases
  url: https://github.com/grafana/k6/releases
- type: CodeOfConduct
  url: https://github.com/grafana/k6/blob/master/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/grafana/k6/blob/master/CONTRIBUTING.md
- type: License
  name: AGPL-3.0
  url: https://github.com/grafana/k6/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/k6-agentic-access.yml
- type: DomainSecurity
  url: security/k6-domain-security.yml
- type: Authentication
  url: authentication/k6-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/k6io
- type: Website
  url: https://k6.io
- type: Documentation
  url: https://grafana.com/docs/k6/latest/
- type: GitHubOrganization
  url: https://github.com/grafana/k6
- url: https://grafana.com/tags/k6/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com