Testcontainers

Testcontainers is an open-source library ecosystem that provides throwaway, lightweight Docker container instances for integration testing across more than a dozen programming languages including Java, Go, .NET, Node.js, and Python. Developers define real test dependencies — databases, message brokers, browsers — as code rather than relying on mocks or shared environments. Testcontainers Cloud extends the library to a hosted container runtime service that runs container-backed tests in the cloud, eliminating the need for a local Docker daemon and enabling parallel execution in CI/CD pipelines. The platform authenticates via a TC_CLOUD_TOKEN environment variable or service account token, and usage is metered in Worker Minutes bundled with Docker Pro, Team, and Business subscriptions.

Testcontainers is listed with 2 APIs on the APIs.io network. Tagged areas include Testing, Integration Testing, Docker, Containers, and CI/CD.

The Testcontainers catalog on APIs.io includes 1 JSON-LD context.

Testcontainers’ developer surface includes documentation, getting-started guide, engineering blog, pricing, and 12 more developer resources.

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17.5/100 emerging ▬ flat Agent 1/100 human only Front door AI 1/6 silent Heartbeat 96/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumFree trial

2 APIs

Testing Integration Testing Docker Containers CI/CD Developer Tools

Kin Score

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

Composite quality — 17.5/100 · emerging

Contract Quality 2.3 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 2.5 / 17

Operational Transparency 1.3 / 11

Contract Governance 0.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 0.7 / 15

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.

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 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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 10.7 — up to +22.3 composite points Ask about this →
Access Clarity scores 14.9 — up to +17.0 composite points Ask about this →
Developer Ergonomics scores 26.2 — up to +14.8 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/testcontainers/apis.yml: open an issue on github.com/api-evangelist/testcontainers 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
OpenSSF Best Practices Badge Holders	standard	23.6 (thin)	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 2

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

Testcontainers Cloud Agent API

The Testcontainers Cloud Agent API enables CI/CD pipelines and desktop environments to allocate hosted Docker container workers in the cloud. Authentication is performed via TC_...

Testcontainers Open-Source Libraries

A family of open-source libraries providing a programmatic API for spinning up and tearing down Docker containers in automated tests. Implementations exist for Java, Go, .NET, N...

Testcontainers API pricing

Not yet checked against Testcontainers's own pricing page. Compiled by API Evangelist on 2026-06-12 from testcontainers.com/cloud/pricing/; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Open Source free	Free
Free Trial freemium	Free
Docker Pro (includes Testcontainers Cloud) paid	—
Docker Team (includes Testcontainers Cloud) paid	—
Docker Business (includes Testcontainers Cloud) paid	—

Plan details, limits and sources →

Rate limits

Free Trial Cloud Runtime: 50 worker minutes lifetime
Docker Pro Monthly Worker Minutes: 100 worker minutes
Docker Team Monthly Worker Minutes: 500 worker minutes

Compiled by API Evangelist, not yet checked against Testcontainers's documentation. All 6 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Testcontainers Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Testcontainers Rate Limits

6 limits

RATE LIMITS

FinOps 1

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

Testcontainers Finops

FINOPS

Semantic Vocabularies 1

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

Testcontainers Context

10 classes · 8 properties

JSON-LD

Security Posture 1

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

Testcontainers Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Slack

Slack

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 5

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Newsletter

Newsletter

BlogFeed

BlogFeed

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: testcontainers
name: Testcontainers
description: Testcontainers is an open-source library ecosystem that provides throwaway, lightweight Docker container instances
  for integration testing across more than a dozen programming languages including Java, Go, .NET, Node.js, and Python. Developers
  define real test dependencies — databases, message brokers, browsers — as code rather than relying on mocks or shared environments.
  Testcontainers Cloud extends the library to a hosted container runtime service that runs container-backed tests in the cloud,
  eliminating the need for a local Docker daemon and enabling parallel execution in CI/CD pipelines. The platform authenticates
  via a TC_CLOUD_TOKEN environment variable or service account token, and usage is metered in Worker Minutes bundled with
  Docker Pro, Team, and Business subscriptions.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: true
  try_now: false
  public: false
  label: Freemium (free trial)
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/testcontainers.png
x-docs-platform: readthedocs
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Testing
- Integration Testing
- Docker
- Containers
- CI/CD
- Developer Tools
url: https://raw.githubusercontent.com/api-evangelist/testcontainers/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.23'
apis:
- aid: testcontainers:cloud-agent-api
  name: Testcontainers Cloud Agent API
  description: The Testcontainers Cloud Agent API enables CI/CD pipelines and desktop environments to allocate hosted Docker
    container workers in the cloud. Authentication is performed via TC_CLOUD_TOKEN service account tokens; usage is metered
    in Worker Minutes and configurable through environment variables and agent command-line flags.
  humanURL: https://testcontainers.com/cloud/docs/
  baseURL: https://app.testcontainers.cloud
  tags:
  - Containers
  - Testing
  - CI/CD
  - Docker
  properties:
  - type: Documentation
    url: https://testcontainers.com/cloud/docs/
- aid: testcontainers:open-source-libraries
  name: Testcontainers Open-Source Libraries
  description: A family of open-source libraries providing a programmatic API for spinning up and tearing down Docker containers
    in automated tests. Implementations exist for Java, Go, .NET, Node.js, Python, Rust, Haskell, Ruby, Clojure, Elixir, PHP,
    and Native (C), each with language-specific documentation and package registries.
  humanURL: https://testcontainers.com/getting-started/
  baseURL: https://github.com/testcontainers
  tags:
  - Open Source
  - Testing
  - Docker
  - Library
  - SDK
  tags_raw:
  - Open Source
  - Testing
  - Docker
  - Libraries
  - SDKs
  - Open-Source
  properties:
  - type: Documentation
    url: https://testcontainers.com/getting-started/
  - type: GitHubRepository
    url: https://github.com/testcontainers
common:
- type: DomainSecurity
  url: security/testcontainers-domain-security.yml
- type: Website
  url: https://testcontainers.com/
- type: Documentation
  url: https://testcontainers.com/cloud/docs/
- type: GettingStarted
  url: https://testcontainers.com/getting-started/
- type: GitHubOrganization
  url: https://github.com/testcontainers
- type: LinkedIn
  url: https://www.linkedin.com/company/atomicjar
- type: Blog
  url: https://atomicjar.com/category/testcontainers/
- type: Newsletter
  url: https://newsletter.testcontainers.com/
- type: Pricing
  url: https://testcontainers.com/cloud/pricing/
- type: X
  url: https://x.com/testcontainers
- type: Slack
  url: https://slack.testcontainers.org/
- type: Plans
  url: plans/testcontainers-plans-pricing.yml
- type: RateLimits
  url: rate-limits/testcontainers-rate-limits.yml
- type: FinOps
  url: finops/testcontainers-finops.yml
- type: BlogFeed
  url: blogs/blogs.json
- type: JSONLDContext
  url: json-ld/testcontainers-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Testcontainers API — frequently asked questions

Does Testcontainers have an API?

Yes. APIs.io lists 2 APIs from Testcontainers, including Testcontainers Cloud Agent API and Testcontainers Open-Source Libraries.

How much does the Testcontainers API cost?

APIs.io lists 5 pricing plans for Testcontainers, with each plan's price, limits and inclusions under Pricing on this page.

Is the Testcontainers API ready for AI agents?

Testcontainers has a Kin Score of 17.5 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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