API Stack

aid: api-stack
name: API Stack
description: 'API Stack is a free, public directory and discovery platform for third-party API tooling, built and operated
  by Apideck B.V. as a tenant of its own Apideck Ecosystem marketplace platform. It catalogs 213 API tools and services across
  46 published category pages spanning the whole API lifecycle: gateways, management, design, authentication, developer portals,
  documentation, specifications, testing, mocking, security, monitoring, analytics, billing, frameworks, linters and directories,
  with per-tool listing pages carrying descriptions, screenshots and outbound links so developers can shortlist and compare
  tooling. API Stack is a discovery surface rather than an API product: it publishes no developer portal, API reference, machine-readable
  contract, SDK, pricing page or terms of service of its own, and sits alongside Apideck''s API Tracker, Open Banking Tracker
  and SaaS Blocks properties.'
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/api-stack.png
tags:
- API Design
- API Directory
- API Gateways
- API Management
- API Monitoring
- API Security
- API Testing
- API Tools
- Apideck
- Developer Tools
- Directory
- Discovery
url: https://raw.githubusercontent.com/api-evangelist/api-stack/refs/heads/main/apis.yml
created: '2025-01-08'
modified: '2026-09-02'
specificationVersion: '0.23'
apis:
- aid: api-stack:api-stack-directory
  name: API Stack Directory
  description: The API Stack Directory is a searchable catalog of 213+ API tools and services organized into 50+ categories.
    Each listing includes descriptions, features, pricing, screenshots, and external links to help developers evaluate and
    select the right tools for their API programs.
  humanURL: https://www.apistack.io/
  tags:
  - API Directory
  - API Discovery
  - API Tools
  - Developer Tools
  properties:
  - type: Categories
    url: https://www.apistack.io/categories/all
  - type: Listings
    url: https://www.apistack.io/all
common:
- type: DomainSecurity
  url: security/api-stack-domain-security.yml
- type: Conformance
  url: conformance/api-stack-conformance.yml
- type: WellKnownProbe
  url: well-known/api-stack-well-known.yml
- type: Packages
  url: packages/api-stack-packages.yml
- type: LLMsTxt
  url: llms/api-stack-llms.txt
- type: PrivacyPolicy
  url: https://compliance.apideck.com/privacy-policy
- type: SignUp
  url: https://www.apistack.io/partner/request
- type: Login
  url: https://www.apistack.io/partner/login
- type: Website
  url: https://www.apistack.io/
- type: Categories
  url: https://www.apistack.io/categories/all
- type: APIGateways
  url: https://www.apistack.io/category/api-gateways
- type: APIManagement
  url: https://www.apistack.io/category/api-management
- type: APIDesign
  url: https://www.apistack.io/category/api-design
- type: APIAuthentication
  url: https://www.apistack.io/category/api-authentication
- type: DeveloperDocumentationCategory
  url: https://www.apistack.io/category/developer-documentation
- type: APIDirectories
  url: https://www.apistack.io/category/directories
- type: APISpecifications
  url: https://www.apistack.io/category/api-specifications
- type: Features
  data:
  - name: 213+ Tools Catalog
    description: Comprehensive listing of API tools and services across 50+ categories with descriptions, features, and pricing.
  - name: Category Browsing
    description: Organized categories for browsing by API lifecycle stage including design, development, testing, security,
      and monitoring.
  - name: Search and Discovery
    description: Full-text search to find specific API tools matching developer requirements.
  - name: Tool Comparison
    description: Detailed listing pages with features, pricing, and screenshots to help compare similar tools.
  - name: Powered by Apideck
    description: Built and maintained by Apideck as part of the broader API ecosystem alongside API Tracker and Open Banking
      Tracker.
- type: UseCases
  data:
  - name: API Tooling Discovery
    description: Developers and architects find and evaluate API tools across all stages of the API lifecycle.
  - name: API Gateway Selection
    description: Compare API gateway options from open source to enterprise to find the right solution for infrastructure
      needs.
  - name: API Security Tool Research
    description: Discover API security testing, authentication, and monitoring tools for securing API programs.
  - name: API Design Tool Evaluation
    description: Explore API design tools, editors, and specification validators to improve API development workflows.
  - name: Developer Portal Platforms
    description: Research developer portal platforms and documentation tools for publishing API programs.
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
x-enrichment:
  date: '2026-09-02'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: apistack.io is a 213-listing directory website with no developer surface of its own — /docs, /api-docs and /pricing
    all return 404, the 268-URL sitemap contains no developer, reference or pricing page, and no /.well-known/ document is
    served; the one machine-readable endpoint on the host, /api/graphql, is the Apideck Ecosystem platform backend that apistack.io
    runs on as a tenant (its schema is Marketplace/Listing/Partner plus Unify/Vault/Connection types), is disallowed in robots.txt,
    and is therefore catalogued under Apideck rather than credited to API Stack.
  evidence:
  - url: https://www.apistack.io/docs
    status: 404
  - url: https://www.apistack.io/api-docs
    status: 404
  - url: https://www.apistack.io/pricing
    status: 404
  - url: https://www.apistack.io/.well-known/api-catalog
    status: 404
  - url: https://www.apistack.io/sitemap.xml
    status: 200
  - url: https://www.apistack.io/api/graphql
    status: 200
  checked: '2026-09-02'