Murmur Technologies INC

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 this enrichment pass its public web hosts (murmurcars.com / murmurads.com) do not resolve to a live web server and the operation appears dormant; it exposes no public API, developer portal, SDKs, or documentation.

Murmur Technologies INC is profiled on the APIs.io network. Tagged areas include Company, Advertising, AdTech, Out-of-Home Advertising, and Digital Billboards.

6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyAdvertisingAdTechOut-of-Home AdvertisingDigital BillboardsMobile AdvertisingMarketing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Murmur Technologies Inc Domain Security

no transport/DNS hardening detected

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: murmur-technologies-inc
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  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 this enrichment pass its public web hosts (murmurcars.com / murmurads.com) do not resolve to a live web server and
  the operation appears dormant; it exposes no public API, developer portal, SDKs, or documentation.
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: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
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: '2026-07-20'
  status: minimal
  artifacts_added: 1
  pass: local-v1