> ## Documentation Index
> Fetch the complete documentation index at: https://technologychecker.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Technology ID map API

> The full technology id to name and category mapping, for resolving the id arrays that list previews return. Cached 24 hours. Free.

## Frequently asked questions

<AccordionGroup>
  <Accordion title="Why do previews return ids instead of names?">
    Because a preview row can carry many technologies and repeating full names on every row would bloat the response badly. Fetch this map once, cache it, and resolve locally.
  </Accordion>

  <Accordion title="How often should I refetch it?">
    It is cached for 24 hours and served with a matching `Cache-Control` header. Daily is plenty — the technology catalog changes slowly.
  </Accordion>

  <Accordion title="Do exports need this too?">
    No. [Exports](/docs/api-reference/lead-lists/export-lead-list-api) resolve technology names server-side, so the downloaded file already contains readable names.
  </Accordion>
</AccordionGroup>


## OpenAPI

````yaml GET /v1/leads/tech-map
openapi: 3.1.0
info:
  title: TechnologyChecker API
  description: >-
    Discover technology stacks, track market trends, and enrich data with
    company intelligence.
  version: 1.0.0
  contact:
    name: TechnologyChecker Support
    email: support@technologychecker.io
    url: https://technologychecker.io
servers:
  - url: https://api.technologychecker.io
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Domain technologies
    description: Look up technologies detected on any domain
  - name: Technology data
    description: Search, look up, and get details on tracked technologies
  - name: Market intelligence
    description: Technology stats, trends, and market share
  - name: Company data
    description: Firmographic and company intelligence
  - name: Live detection
    description: Real-time technology detection with browser rendering
  - name: Signals
    description: >-
      Intent signals derived from technology state transitions: who adopted, who
      churned, who switched, and who has a gap in their stack.
  - name: Alerts
    description: >-
      Saved signal queries delivered to your webhook. Every signal you can
      query, you can subscribe to.
  - name: Audiences
    description: >-
      Saved groups of domains — uploaded lists or computed recipes — that you
      can profile, slice and monitor.
  - name: Lead lists
    description: >-
      Build and export targeted domain lists combining technology detection with
      company data.
paths:
  /v1/leads/tech-map:
    get:
      tags:
        - Lead lists
      summary: Technology ID map API
      description: >-
        The full technology id to name and category mapping, for resolving the
        `technology_ids` arrays that list previews return. Cached for 24 hours —
        fetch it once and keep it. Free.
      operationId: getTechnologyMap
      responses:
        '200':
          description: The complete technology map
          headers:
            Cache-Control:
              description: '`public, max-age=86400`'
              schema:
                type: string
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  data:
                    type: object
                    properties:
                      technologies:
                        type: object
                        additionalProperties:
                          type: object
                          properties:
                            name:
                              type: string
                            category:
                              type: string
                        example:
                          '2':
                            name: Cloudflare
                            category: CDN
                      count:
                        type: integer
                        example: 28402
                      last_updated:
                        type: string
                        example: '2026-01-15T00:00:00Z'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    RateLimited:
      description: Rate limit exceeded
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
  schemas:
    ApiError:
      type: object
      properties:
        success:
          type: boolean
          example: false
        error:
          type: object
          properties:
            code:
              type: string
              example: UNAUTHORIZED
            message:
              type: string
              example: Missing or invalid API key
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key in format `tapi_live_[32-char]` (live) or `tapi_test_[32-char]`
        (test)

````