Castbox

Castbox is a free cross-platform podcast and audio content platform that lets listeners discover, stream, download, and manage millions of podcasts, audiobooks, and radio shows across Apple iOS, Android, Amazon Alexa, Google Home, CarPlay, Android Auto, and the web. Alongside its consumer listening apps, Castbox offers a "For Podcasters" suite for creators to host, distribute, and monetize their shows. Surfaced as a portfolio company of Qiming Venture Partners and added to the API Evangelist network, Castbox is a consumer audio company that publishes no public developer API portal; this profile captures its public identity, legal, and support surface.

Castbox is profiled on the APIs.io network. Tagged areas include Company, Podcasts, Audio, Media, and Streaming.

Castbox’s developer surface includes support, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyPodcastsAudioMediaStreamingPodcastingContentConsumer

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 12.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.2 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/castboxapp: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: castboxapp
name: Castbox
description: Castbox is a free cross-platform podcast and audio content platform that lets listeners discover, stream, download,
  and manage millions of podcasts, audiobooks, and radio shows across Apple iOS, Android, Amazon Alexa, Google Home, CarPlay,
  Android Auto, and the web. Alongside its consumer listening apps, Castbox offers a "For Podcasters" suite for creators to
  host, distribute, and monetize their shows. Surfaced as a portfolio company of Qiming Venture Partners and added to the
  API Evangelist network, Castbox is a consumer audio company that publishes no public developer API portal; this profile
  captures its public identity, legal, and support surface.
url: https://raw.githubusercontent.com/api-evangelist/castboxapp/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- qiming
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://s3.castbox.fm/app/castbox/static/images/logo_120.png
tags:
- Company
- Podcasts
- Audio
- Media
- Streaming
- Podcasting
- Content
- Consumer
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/castboxapp-domain-security.yml
- type: Website
  url: https://castbox.fm
- type: Support
  url: https://helpcenter.castbox.fm/portal/kb
- type: TermsOfService
  url: https://castbox.fm/termsofservice.html
- type: PrivacyPolicy
  url: https://castbox.fm/policy.html
- type: Blog
  url: https://castbox.fm/newsroom/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence