SuperTest

SuperTest is a Node.js library for testing HTTP servers by providing a high-level abstraction for HTTP assertions with a fluent API built on SuperAgent. Maintained by the Forward Email / ladjs open source organization, SuperTest allows developers to pass any http.Server or Express/Koa application and test HTTP requests and responses with chained assertions. It is widely used with Mocha, Jest, and other JavaScript testing frameworks for integration and end-to-end API testing.

SuperTest is listed with 1 API on the APIs.io network. Tagged areas include Testing, Functional Testing, HTTP Testing, Node.js, and JavaScript.

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

SuperTest’s developer surface includes documentation, release notes, and 10 more developer resources.

📡 Profile data on GitHub

22.6/100 emerging ▬ flat Agent 1/100 human only Heartbeat 97/100 alive self hosted · MIT Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 API

Testing Functional TestingHTTP TestingNode.js JavaScript Open Source API Testing Integration TestingSuperAgentFluent API

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 22.6/100 · emerging

Contract Quality 3.4 / 19

Developer Ergonomics 1.4 / 15

Access Clarity 1.0 / 15

Operational Transparency 2.6 / 10

Contract Governance 2.1 / 9

Discoverability 4.3 / 8

Regulatory Posture 0.7 / 15

Open Source Surface 6.5 / 10

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

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.

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 75 points between them, because both conditional facets apply and carry 25 points together. 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/.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 17.9 — up to +20.5 composite points Ask about this →
Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Developer Ergonomics scores 9.5 — up to +18.1 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/supertest/apis.yml: open an issue on github.com/api-evangelist/supertest 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 →

APIs 1

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

SuperTest

SuperTest is a Node.js library for testing HTTP servers by providing a high-level abstraction for HTTP assertions with a fluent API built on SuperAgent. Supports GET, POST, PUT,...

SuperTest API pricing

Not yet checked against SuperTest'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 SuperTest's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

SuperTest Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

SuperTest Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

SuperTest Finops

FINOPS

Semantic Vocabularies 1

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

Supertest Context

17 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

SuperTest — jsonschema rules

5 rules · 4 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

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

SuperTest Test Configuration

8 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

SuperTest Test Config Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

SuperTest Get Request Example

4 fields

EXAMPLE

SuperTest Post Request Example

4 fields

EXAMPLE

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

NPM Package

NPM Package

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Issues

Issues

ReleaseNotes

ReleaseNotes

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

License

License

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: supertest
deliveryModel:
  model: self-hosted
  license: MIT
  license_evidence:
    repo: ladjs/supertest
    spdx: MIT
    stars: 14404
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: medium
  source:
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/supertest.png
name: SuperTest
description: SuperTest is a Node.js library for testing HTTP servers by providing a high-level abstraction for HTTP assertions
  with a fluent API built on SuperAgent. Maintained by the Forward Email / ladjs open source organization, SuperTest allows
  developers to pass any http.Server or Express/Koa application and test HTTP requests and responses with chained assertions.
  It is widely used with Mocha, Jest, and other JavaScript testing frameworks for integration and end-to-end API testing.
url: https://raw.githubusercontent.com/api-evangelist/supertest/refs/heads/main/apis.yml
created: '2026-03-25'
modified: '2026-05-02'
specificationVersion: '0.23'
tags:
- Testing
- Functional Testing
- HTTP Testing
- Node.js
- JavaScript
- Open Source
- API Testing
- Integration Testing
- SuperAgent
- Fluent API
tags_raw:
- Testing
- Functional Testing
- HTTP Testing
- Node.js
- JavaScript
- Open Source
- API Testing
- Integration Testing
- SuperAgent
- Fluent API
- Open-Source
apis:
- aid: supertest:supertest
  name: SuperTest
  description: SuperTest is a Node.js library for testing HTTP servers by providing a high-level abstraction for HTTP assertions
    with a fluent API built on SuperAgent. Supports GET, POST, PUT, DELETE, PATCH HTTP methods with chainable assertions on
    status codes, headers, response bodies, cookies, and more.
  humanURL: https://github.com/ladjs/supertest
  tags:
  - Testing
  - HTTP Testing
  - Node.js
  - JavaScript
  - Open Source
  - API Testing
  - Integration Testing
  tags_raw:
  - Testing
  - HTTP Testing
  - Node.js
  - JavaScript
  - Open Source
  - API Testing
  - Integration Testing
  - Open-Source
  properties:
  - type: Documentation
    url: https://github.com/ladjs/supertest#readme
  - type: GitHubRepository
    url: https://github.com/ladjs/supertest
  - type: NPM Package
    url: https://www.npmjs.com/package/supertest
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/supertest/refs/heads/main/json-schema/supertest-test-config-schema.json
  - type: JSONStructure
    url: https://raw.githubusercontent.com/api-evangelist/supertest/refs/heads/main/json-structure/supertest-test-config-structure.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/supertest/refs/heads/main/json-ld/supertest-context.jsonld
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/supertest/refs/heads/main/vocabulary/supertest-vocabulary.yml
common:
- type: Plans
  url: plans/supertest-plans-pricing.yml
- type: RateLimits
  url: rate-limits/supertest-rate-limits.yml
- type: FinOps
  url: finops/supertest-finops.yml
- type: CodeOfConduct
  url: https://github.com/forwardemail/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/forwardemail/.github/blob/main/CONTRIBUTING.md
- type: Website
  url: https://github.com/ladjs/supertest
- type: Documentation
  url: https://github.com/ladjs/supertest#readme
- type: GitHubOrganization
  url: https://github.com/ladjs
- type: NPM Package
  url: https://www.npmjs.com/package/supertest
- type: License
  url: https://github.com/ladjs/supertest/blob/master/LICENSE
- type: Issues
  url: https://github.com/ladjs/supertest/issues
- type: ReleaseNotes
  url: https://github.com/ladjs/supertest/releases
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

SuperTest API — frequently asked questions

Does SuperTest have an API?

Yes. APIs.io lists 1 API from SuperTest, including SuperTest.

How much does the SuperTest API cost?

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

Is the SuperTest API ready for AI agents?

SuperTest has a Kin Score of 22.6 out of 100 (emerging) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-13.

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