aid: test-ai
name: test.ai
description: >-
  test.ai (formerly Appdiff, Inc.) built an AI-powered test-automation platform that used computer
  vision and machine-learning element classification to make Selenium and Appium tests resilient to
  UI change. It published first-party Java, Python, Node.js and Ruby SDKs, a gRPC "Classifier"
  service that labelled UI elements from screenshots, an Appium classifier plugin, and OpenTestData
  — a free open database of automated test fixture data with its own REST API. The company raised
  over $30M and was sold; its founder has since moved on to other ventures. As of 2026-08-30 test.ai
  serves no website of its own: the domain has no HTTPS listener and every HTTP path redirects
  off-domain. The artifacts profiled here are the contracts and packages the company published while
  operating, all of which remain publicly retrievable from its own GitHub organization and from the
  npm, PyPI, RubyGems and Maven Central registries.
url: https://raw.githubusercontent.com/api-evangelist/test-ai/refs/heads/main/apis.yml
image: https://avatars.githubusercontent.com/u/36999702?s=200&v=4
x-type: company
x-source: harvest:secondary-market
x-source-url: https://www.nasdaqprivatemarket.com/
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
x-status: defunct
x-status-detail: Formerly Appdiff, Inc.; the product was wound down and test.ai no longer
  resolves. No Website registered on purpose.
created: '2026-08-30'
modified: '2026-08-30'
tags:
- Company
- Testing
- Test Automation
- Quality Assurance
- Artificial Intelligence
- Machine-Learning
- Computer-Vision
- Selenium
- Appium
- Developer Tools
- gRPC
- Defunct
tags_raw:
- Company
- Testing
- Test Automation
- Quality Assurance
- Artificial Intelligence
- Machine Learning
- Computer Vision
- Selenium
- Appium
- Developer Tools
- gRPC
- Defunct
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: OpenTestData API
  description: >-
    REST API behind opentestdata.org, test.ai's free and open database of automated test fixture
    data. 13 paths / 16 operations covering user signup and login, e-mail confirmation, avatars,
    admin promotion, test and datum create/read/update, and a combined search over tests and data.
    Authenticated with a JWT bearer token. The publicly hosted instance the provider documented,
    api.opentestdata.org, no longer resolves; the contract survives in the company's own repository.
  humanURL: https://github.com/testdotai/opentestdata-api
  baseURL: http://api.opentestdata.org
  tags:
  - Test Data
  - Search
  - Open Data
  properties:
  - type: OpenAPI
    url: openapi/test-ai-opentestdata-openapi.yaml
  - type: Authentication
    url: authentication/test-ai-authentication.yml
  - type: ErrorCatalog
    url: errors/test-ai-problem-types.yml
  - type: DataModel
    url: data-model/test-ai-data-model.yml
  - type: Overlay
    url: overlays/test-ai-opentestdata-overlay.yaml
  - type: SourceCode
    url: https://github.com/testdotai/opentestdata-api
- name: test.ai Classifier
  description: >-
    gRPC service that classifies UI element screenshots into semantic labels. A single RPC,
    ClassifyElements, takes a map of element id to PNG bytes plus a label hint, a confidence
    threshold and a weaker-match flag, and returns a per-element label with confidence scores.
    This is the engine behind the test.ai Appium classifier plugin and the Java, Python, Node.js
    and Ruby classifier clients. The server is run by the consumer, so there is no vendor-hosted
    base URL — the clients take host and port as constructor arguments.
  humanURL: https://github.com/testdotai/classifier-proto
  tags:
  - Machine-Learning
  - Computer-Vision
  - gRPC
  tags_raw:
  - Machine Learning
  - Computer Vision
  - gRPC
  properties:
  - type: Protobuf
    url: grpc/test-ai-classifier.proto
  - type: SourceCode
    url: https://github.com/testdotai/classifier-proto
common:
- type: License
  name: MIT
  url: https://github.com/testdotai/opentestdata-api/blob/master/LICENSE
- type: GitHubOrganization
  url: https://github.com/testdotai
- type: Documentation
  url: https://github.com/testdotai/testai-build-your-own-SDK-documentation
- type: GettingStarted
  url: https://github.com/testdotai/interactive_walkthrough
- type: Packages
  url: packages/test-ai-packages.yml
- type: SDKs
  url: packages/test-ai-packages.yml
- type: Conformance
  url: conformance/test-ai-conformance.yml
- type: Lifecycle
  url: lifecycle/test-ai-lifecycle.yml
- type: Conventions
  url: conventions/test-ai-conventions.yml
- type: DomainSecurity
  url: security/test-ai-domain-security.yml
- type: LLMsTxt
  url: llms/test-ai-llms.txt
- type: Plans
  url: plans/test-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/test-ai-rate-limits.yml
x-enrichment:
  date: '2026-08-30'
  status: enriched
  artifacts_added: 22
  pass: local-v1