The four anonymous, unauthenticated technology and category reference endpoints on the v2 host — the technology directory (7,281 entries), a single technology profile, the category directory (106 entries) and a single category with its member technologies. Absent from the published contract; located from the provider's own open-source MCP server and confirmed live on 2026-08-14. Consumes no credits and requires no API key.
openapi: 3.0.3
info:
title: Wappalyzer Public Metadata API
version: v2
description: >-
The four anonymous, unauthenticated metadata endpoints of the Wappalyzer v2 API: the
technology directory, a single technology profile, the category directory, and a single
category with its member technologies.
These endpoints are not covered by the published /docs/api/v2/ reference. They were located
from Wappalyzer's own open-source MCP server (github.com/wappalyzer/mcp), whose README states
the `wappalyzer://technologies`, `wappalyzer://technologies/{slug}`, `wappalyzer://categories`
and `wappalyzer://categories/{slug}` MCP resources "do not send the API key" and read from
`GET /technologies/`, `GET /technologies/{slug}/`, `GET /categories/` and
`GET /categories/{slug}/`. Each path was then confirmed live and anonymous against
https://api.wappalyzer.com/v2 on 2026-08-14 (HTTP 200, application/json). Schemas below are
modelled from the observed response bodies only — no field is asserted that was not returned.
license:
name: Proprietary
url: https://www.wappalyzer.com/terms/
contact:
name: Wappalyzer Support
url: https://www.wappalyzer.com/contact/
x-provenance:
method: probed
generated: '2026-08-14'
discovered_from: https://github.com/wappalyzer/mcp
verified:
- {url: 'https://api.wappalyzer.com/v2/technologies/', status: 200, bytes: 1362448, items: 7281}
- {url: 'https://api.wappalyzer.com/v2/technologies/shopify/', status: 200, bytes: 6280}
- {url: 'https://api.wappalyzer.com/v2/categories/', status: 200, bytes: 14476, items: 106}
- {url: 'https://api.wappalyzer.com/v2/categories/ecommerce/', status: 200}
servers:
- url: https://api.wappalyzer.com/v2
security: []
tags:
- name: Metadata
description: Anonymous technology and category reference data.
paths:
/technologies/:
get:
tags: [Metadata]
operationId: listTechnologies
summary: List every technology in the Wappalyzer directory
description: >-
Returns the full technology directory as a flat array. Observed 7,281 entries on
2026-08-14. No authentication is required and no credits are consumed.
responses:
'200':
description: The technology directory.
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/TechnologySummary'
example:
- slug: 11sight
name: 11Sight
icon: 11Sight.svg
categories:
- {id: 52, slug: live-chat, name: Live chat, priority: 9}
- {id: 53, slug: crm, name: CRM, priority: 5}
versioned: false
hostnames: 38
/technologies/{slug}/:
get:
tags: [Metadata]
operationId: getTechnology
summary: Get a single technology profile
description: >-
Returns the full profile for one technology: categories, vendor website, description,
pricing metadata, SaaS/OSS flags, adoption counts, top countries, top languages and
alternatives.
parameters:
- name: slug
in: path
required: true
description: Technology slug, as returned by listTechnologies.
schema:
type: string
example: shopify
responses:
'200':
description: The technology profile.
content:
application/json:
schema:
$ref: '#/components/schemas/Technology'
'404':
description: No technology with that slug.
/categories/:
get:
tags: [Metadata]
operationId: listCategories
summary: List every technology category
description: >-
Returns the full category directory as a flat array. Observed 106 entries on 2026-08-14.
responses:
'200':
description: The category directory.
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Category'
example:
- id: 74
slug: a-b-testing
technologiesCount: 57
name: A/B Testing
groups:
- {name: Analytics, slug: analytics}
/categories/{slug}/:
get:
tags: [Metadata]
operationId: getCategory
summary: Get a single category and its member technologies
parameters:
- name: slug
in: path
required: true
description: Category slug, as returned by listCategories.
schema:
type: string
example: ecommerce
responses:
'200':
description: The category, its groups, and a map of member technologies keyed by slug.
content:
application/json:
schema:
$ref: '#/components/schemas/CategoryDetail'
'404':
description: No category with that slug.
components:
schemas:
CategoryRef:
type: object
description: A category reference embedded on a technology.
properties:
id:
type: integer
slug:
type: string
name:
type: string
priority:
type: integer
Group:
type: object
description: The high-level grouping a category belongs to.
properties:
id:
type: integer
slug:
type: string
name:
type: string
TechnologySummary:
type: object
description: A technology as returned in the directory listing.
properties:
slug:
type: string
name:
type: string
icon:
type: string
description: Icon file name.
categories:
type: array
items:
$ref: '#/components/schemas/CategoryRef'
versioned:
type: boolean
description: Whether Wappalyzer can detect a version for this technology.
hostnames:
type: integer
description: Number of hostnames observed running this technology.
Technology:
allOf:
- $ref: '#/components/schemas/TechnologySummary'
- type: object
properties:
website:
type: string
format: uri
description:
type: string
pricing:
type: array
description: Pricing metadata tags, e.g. low, mid, high, freemium, recurring, onetime, poa.
items:
type: string
saas:
type: boolean
oss:
type: boolean
createdAt:
type: integer
description: Unix epoch seconds.
hits:
type: integer
topIpCountries:
type: object
description: Map of ISO country code to observation count.
additionalProperties:
type: integer
topLanguages:
type: object
additionalProperties:
type: integer
topIndustries:
type: object
additionalProperties:
type: integer
topCompanySizes:
type: object
additionalProperties:
type: integer
topHostnames:
type: object
additionalProperties:
type: object
properties:
hits:
type: integer
www:
type: boolean
alternatives:
type: array
items:
type: object
properties:
slug:
type: string
categorySlug:
type: string
categoryName:
type: string
Category:
type: object
properties:
id:
type: integer
slug:
type: string
name:
type: string
technologiesCount:
type: integer
groups:
type: array
items:
$ref: '#/components/schemas/Group'
CategoryDetail:
type: object
properties:
groups:
type: array
items:
$ref: '#/components/schemas/Group'
technologies:
type: object
description: Member technologies keyed by slug.
additionalProperties:
type: object
properties:
slug:
type: string
name:
type: string
icon:
type: string
hits:
type: integer
hostnames:
type: integer