Scalability Testing

A collection of tools, frameworks, APIs, and datasets for performing scalability and load testing of web services, APIs, and distributed systems. Scalability testing evaluates how a system performs as load increases, identifying bottlenecks, capacity limits, and performance degradation points. Key tools include Apache JMeter, k6, Gatling, Locust, and cloud-based platforms like AWS Load Testing, Azure Load Testing, and BlazeMeter.

Scalability Testing publishes 6 API contracts indexed on the APIs.io network, including Projects API, and 5 more. Tagged areas include API Testing, Developer Tools, Load Testing, Performance Testing, and Scalability.

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

Scalability Testing’s developer surface includes authentication, GitHub presence, documentation, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.7/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

API Testing Developer Tools Load Testing Performance Testing Scalability Stress Testing

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 29.7/100 · thin

Contract Quality 10.5 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 1.2 / 15

Operational Transparency 1.3 / 10

Contract Governance 2.1 / 9

Discoverability 4.3 / 8

Regulatory Posture 2.5 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct 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 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/scalability-testing/"><img src="https://apis.io/badge/scalability-testing/card.svg" alt="Scalability Testing on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 21.4 — up to +15.7 composite points
Operational Transparency scores 13.2 — up to +11.3 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/scalability-testing/apis.yml: open an issue on github.com/api-evangelist/scalability-testing to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 6

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

Grafana k6 Cloud API

The Grafana k6 Cloud REST API provides programmatic access to run, manage, and retrieve results for load tests executed on the k6 cloud platform. k6 is an open-source load testi...

BlazeMeter API

The BlazeMeter REST API provides access to the BlazeMeter cloud load testing platform. BlazeMeter supports JMeter, Gatling, Locust, Selenium, and custom test plans. The API enab...

Apache JMeter

Apache JMeter is the most widely-used open-source load testing tool. It supports HTTP, HTTPS, FTP, JDBC, LDAP, SOAP, REST, and more protocols. JMeter provides a REST API in its ...

Locust Load Testing

Locust is a scalable, distributed open-source load testing framework written in Python. Test scenarios are defined in pure Python code. Locust exposes a REST API and web UI for ...

Gatling Load Testing

Gatling is an open-source load testing framework built on Akka and Netty, providing high performance with a Scala/Java/Kotlin DSL for defining test scenarios. The Gatling Enterp...

Scalability Testing Projects API

The Projects API from Scalability Testing — 4 operation(s) for projects.

Open Collections 2

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

Grafana Cloud k6 REST Projects API

OPEN COLLECTION

Grafana Cloud k6 REST API

OPEN COLLECTION

Scalability Testing API pricing

Not yet checked against Scalability Testing's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Scalability Testing's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Scalability Testing Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Scalability Testing Rate Limits

5 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Scalability Testing

SLA

FinOps 1

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

Scalability Testing Finops

FINOPS

Semantic Vocabularies 1

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

Scalability Testing Context

5 classes · 22 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Scalability Testing — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

LoadTestResult

10 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Scalability Testing Test Result Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Scalability Testing K6 Test Result Example

4 fields

EXAMPLE

Security Posture 2

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

Scalability Testing Authentication

apiKey/http · 2 schemes

SECURITY

Scalability Testing Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Scalability Testing Agentic Access

8 operations · 4 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLD

JSONLD

Build 4

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: scalability-testing
name: Scalability Testing
description: A collection of tools, frameworks, APIs, and datasets for performing scalability and load testing of web services,
  APIs, and distributed systems. Scalability testing evaluates how a system performs as load increases, identifying bottlenecks,
  capacity limits, and performance degradation points. Key tools include Apache JMeter, k6, Gatling, Locust, and cloud-based
  platforms like AWS Load Testing, Azure Load Testing, and BlazeMeter.
type: Index
deliveryModel:
  model: unknown
  license_evidence:
    not_product:
    - apache/jmeter
    - gatling/gatling
    - grafana/k6
    - locustio/locust
  open_source: unknown
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/scalability-testing.png
tags:
- API Testing
- Developer Tools
- Load Testing
- Performance Testing
- Scalability
- Stress Testing
url: https://raw.githubusercontent.com/api-evangelist/scalability-testing/refs/heads/main/apis.yml
created: '2024-01-15'
modified: '2026-05-02'
specificationVersion: '0.23'
apis:
- aid: scalability-testing:k6-cloud-api
  name: Grafana k6 Cloud API
  description: The Grafana k6 Cloud REST API provides programmatic access to run, manage, and retrieve results for load tests
    executed on the k6 cloud platform. k6 is an open-source load testing tool using JavaScript/TypeScript test scripts. The
    cloud platform adds distributed execution, real-time results, and team collaboration features.
  humanURL: https://grafana.com/docs/grafana-cloud/testing/k6/
  baseURL: https://api.k6.io/v3
  tags:
  - k6
  - Load Testing
  - Performance Testing
  properties:
  - type: Documentation
    url: https://grafana.com/docs/grafana-cloud/testing/k6/reference/rest-api/
- aid: scalability-testing:blazemeter-api
  name: BlazeMeter API
  description: The BlazeMeter REST API provides access to the BlazeMeter cloud load testing platform. BlazeMeter supports
    JMeter, Gatling, Locust, Selenium, and custom test plans. The API enables test execution, monitoring, result retrieval,
    and configuration management.
  humanURL: https://guide.blazemeter.com/hc/en-us/categories/200698715-BlazeMeter-API
  baseURL: https://a.blazemeter.com/api/v4
  tags:
  - BlazeMeter
  - JMeter
  - Load Testing
  properties:
  - type: Documentation
    url: https://guide.blazemeter.com/hc/en-us/categories/200698715-BlazeMeter-API
- aid: scalability-testing:jmeter
  name: Apache JMeter
  description: Apache JMeter is the most widely-used open-source load testing tool. It supports HTTP, HTTPS, FTP, JDBC, LDAP,
    SOAP, REST, and more protocols. JMeter provides a REST API in its distributed mode and integrates with BlazeMeter, Azure
    Load Testing, and other cloud platforms for scaled execution.
  humanURL: https://jmeter.apache.org/
  tags:
  - Apache
  - JMeter
  - Load Testing
  - Open Source
  tags_raw:
  - Apache
  - JMeter
  - Load Testing
  - Open Source
  - Open-Source
  properties:
  - type: Documentation
    url: https://jmeter.apache.org/usermanual/index.html
  - type: GitHub
    url: https://github.com/apache/jmeter
- aid: scalability-testing:locust
  name: Locust Load Testing
  description: Locust is a scalable, distributed open-source load testing framework written in Python. Test scenarios are
    defined in pure Python code. Locust exposes a REST API and web UI for controlling test execution, viewing real-time metrics,
    and integrating with CI/CD pipelines.
  humanURL: https://locust.io/
  baseURL: http://localhost:8089
  tags:
  - Load Testing
  - Locust
  - Open Source
  - Python
  tags_raw:
  - Load Testing
  - Locust
  - Open Source
  - Python
  - Open-Source
  properties:
  - type: Documentation
    url: https://docs.locust.io/en/stable/
  - type: GitHub
    url: https://github.com/locustio/locust
- aid: scalability-testing:gatling
  name: Gatling Load Testing
  description: Gatling is an open-source load testing framework built on Akka and Netty, providing high performance with a
    Scala/Java/Kotlin DSL for defining test scenarios. The Gatling Enterprise cloud platform provides distributed execution
    and advanced analytics APIs.
  humanURL: https://gatling.io/
  tags:
  - Gatling
  - Java
  - Load Testing
  - Open Source
  - Scala
  tags_raw:
  - Gatling
  - Java
  - Load Testing
  - Open Source
  - Scala
  - Open-Source
  properties:
  - type: Documentation
    url: https://docs.gatling.io/
  - type: GitHub
    url: https://github.com/gatling/gatling
- aid: scalability-testing:scalability-testing-projects-api
  name: Scalability Testing Projects API
  description: The Projects API from Scalability Testing — 4 operation(s) for projects.
  humanURL: https://grafana.com/docs/grafana-cloud/testing/k6/
  baseURL: https://api.k6.io/v3
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/scalability-testing-projects-api-openapi.yml
  - type: Documentation
    url: https://learn.microsoft.com/en-us/azure/load-testing/
common:
- type: Plans
  url: plans/scalability-testing-plans-pricing.yml
- type: RateLimits
  url: rate-limits/scalability-testing-rate-limits.yml
- type: FinOps
  url: finops/scalability-testing-finops.yml
- type: AgenticAccess
  url: agentic-access/scalability-testing-agentic-access.yml
- type: DomainSecurity
  url: security/scalability-testing-domain-security.yml
- type: Authentication
  url: authentication/scalability-testing-authentication.yml
- type: Website
  url: https://k6.io/
- type: GitHub
  url: https://github.com/grafana/k6
- type: GitHub
  url: https://github.com/apache/jmeter
- type: GitHub
  url: https://github.com/locustio/locust
- type: GitHub
  url: https://github.com/gatling/gatling
- type: Documentation
  url: https://grafana.com/docs/grafana-cloud/testing/k6/
- type: Vocabulary
  url: vocabulary/scalability-testing-vocabulary.yml
- type: JSONLD
  url: json-ld/scalability-testing-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Scalability Testing API — frequently asked questions

Does Scalability Testing have an API?

Yes. APIs.io lists 6 APIs from Scalability Testing, including Grafana k6 Cloud API, BlazeMeter API and Apache JMeter, and 3 more.

Is there an OpenAPI specification for the Scalability Testing API?

Yes. APIs.io indexes 1 OpenAPI specification for Scalability Testing, each linked for download from this page.

How do I authenticate with the Scalability Testing API?

Scalability Testing uses bearer-token authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Scalability Testing Authentication.

How much does the Scalability Testing API cost?

APIs.io lists 3 pricing plans for Scalability Testing, with each plan's price, limits and inclusions under Pricing on this page.

Is the Scalability Testing API ready for AI agents?

Scalability Testing has a Kin Score of 29.7 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/scalability-testing"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/scalability-testing/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/scalability-testing/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.