Murmur Technologies INC

aid: murmur-technologies-inc
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/murmur-technologies-inc.png
name: Murmur Technologies INC
description: 'Murmur Technologies INC (Murmur) is a Chicago, Illinois out-of-home advertising technology company operating
  a mobile digital billboard platform. It mounts smart LCD screens on car-tops and pedestrian backpacks to display geo-targeted
  ads on city streets, using sensors, computer vision, and location data to segment audiences by demographics, location, and
  behavior, measure ad performance in real time, and retarget viewers across other channels such as Facebook and Google. The
  company was surfaced as a portfolio company of 500 Global and added to the API Evangelist network as a lead for enrichment.
  As of the 2026-08-12 enrichment pass the operation appears dormant: both marketing domains (murmurcars.com and murmurads.com)
  carry Route 53 nameservers but no A record at all, and the blog host times out. The one surviving surface is portal.murmurads.com,
  the advertiser portal, a static React single-page app served from Amazon S3 behind CloudFront whose last build shipped 2024-12-26.
  Its JavaScript bundle calls a private REST backend at backendapp.murmurcars.com/api/v1/ (campaigns, venues, zipcode demographics,
  GPS, air quality and user endpoints), but that host — while it still resolves — has TCP 443 and 80 dead, so the portal front-end
  can no longer reach its own API. Murmur publishes no public API, developer portal, documentation, SDK, or machine-readable
  specification of any kind, and no package exists for it in any public registry.'
url: https://raw.githubusercontent.com/api-evangelist/murmur-technologies-inc/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-12'
tags:
- Company
- Advertising
- AdTech
- Out-of-Home Advertising
- Digital Billboards
- Mobile Advertising
- Marketing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://murmurcars.com
- type: DomainSecurity
  url: security/murmur-technologies-inc-domain-security.yml
x-enrichment:
  date: '2026-08-12'
  status: minimal
  artifacts_added: 1
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Both Murmur marketing domains resolve to Route 53 nameservers with no A record whatsoever, and the private REST
    backend the advertiser portal calls (backendapp.murmurcars.com) still resolves but has TCP 443 and 80 dead — the only
    surface left standing is a static React portal shell on S3/CloudFront whose last build shipped 2024-12-26 and which can
    no longer reach its own API.
  evidence:
  - url: https://murmurcars.com
    status: 0
  - url: https://murmurads.com
    status: 0
  - url: https://backendapp.murmurcars.com/api/v1/zipcode/get-us-information
    status: 0
  - url: https://portal.murmurads.com/
    status: 200
  - url: https://portal.murmurads.com/.well-known/security.txt
    status: 404
  - url: https://portal.murmurads.com/llms.txt
    status: 404
  checked: '2026-08-12'
x-lifecycle:
  state: shuttered
  reason: domain-does-not-resolve
  observed: '2026-09-27'
  detail: The company's own domain returned no A or AAAA record when probed. This is an observation about the domain, not
    a request from the company.
  indexed: false