Transistor website screenshot

Transistor

Transistor is a podcast hosting and analytics platform that lets teams host unlimited shows, distribute episodes to Apple Podcasts, Spotify, and YouTube, run private (subscriber-only) podcasts, and measure downloads with advanced analytics. Transistor exposes a documented public REST API at https://api.transistor.fm/v1 that follows the JSON:API specification, is authenticated with an x-api-key header, and covers shows, episodes, analytics, private podcast subscribers, and event webhooks.

Transistor publishes 6 APIs on the APIs.io network, including Account API, Analytics API, Episodes API, and 3 more. Tagged areas include Podcasting, Podcast Hosting, Analytics, Media, and Audio.

Transistor’s developer surface includes authentication, documentation, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.8/100 developing ▬ flat Agent 31/100 agent ready saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0
AccessPaid
1 APIs
PodcastingPodcast HostingAnalyticsMediaAudioJSON:API

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0
Composite quality — 39.8/100 · developing
Contract Quality 13.4 / 23
Developer Ergonomics 4.7 / 18
Access Clarity 8.5 / 18
Operational Transparency 3.7 / 12
Contract Governance 0.0 / 11
Discoverability 6.2 / 9
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 31/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/transistor: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Transistor Account API

The authenticated user account.

Transistor Analytics API

Download analytics for shows and episodes.

Transistor Episodes API

Podcast episodes, drafts, uploads, and publishing.

Transistor Shows API

Podcasts (shows) in your Transistor account.

Transistor Subscribers API

Private (subscriber-only) podcast subscribers.

Transistor Webhooks API

Event webhook subscriptions.

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Transistor Account API

OPEN COLLECTION

Transistor Account Analytics API

OPEN COLLECTION

Transistor Account Episodes API

OPEN COLLECTION

Transistor Account Shows API

OPEN COLLECTION

Transistor Account Subscribers API

OPEN COLLECTION

Transistor Account Webhooks API

OPEN COLLECTION

Transistor API

OPEN COLLECTION

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Transistor Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Transistor Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Transistor Finops

FINOPS

Security Posture 4

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

Transistor Authentication

apiKey · 1 scheme

SECURITY

Transistor Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Transistor Vulnerability Disclosure

disclosure policy published

SECURITY

Transistor Trust Center

SOC 2, ISO 27001

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Transistor Agentic Access

23 operations · 11 acting

23 operations · 11 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 4

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap

Source (apis.yml)

apis.yml Raw ↑ 
aid: transistor
url: https://raw.githubusercontent.com/api-evangelist/transistor/refs/heads/main/apis.yml
name: Transistor
kind: company
description: Transistor is a podcast hosting and analytics platform that lets teams host unlimited shows, distribute episodes
  to Apple Podcasts, Spotify, and YouTube, run private (subscriber-only) podcasts, and measure downloads with advanced analytics.
  Transistor exposes a documented public REST API at https://api.transistor.fm/v1 that follows the JSON:API specification,
  is authenticated with an x-api-key header, and covers shows, episodes, analytics, private podcast subscribers, and event
  webhooks.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/transistor.png
tags:
- Podcasting
- Podcast Hosting
- Analytics
- Media
- Audio
- JSON:API
created: '2026-07-05'
modified: '2026-07-05'
specificationVersion: '0.23'
apis:
- aid: transistor:transistor-account-api
  name: Transistor Account API
  description: The authenticated user account.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/transistor-account-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
- aid: transistor:transistor-analytics-api
  name: Transistor Analytics API
  description: Download analytics for shows and episodes.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/transistor-analytics-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
- aid: transistor:transistor-episodes-api
  name: Transistor Episodes API
  description: Podcast episodes, drafts, uploads, and publishing.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Episodes
  properties:
  - type: OpenAPI
    url: openapi/transistor-episodes-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
- aid: transistor:transistor-shows-api
  name: Transistor Shows API
  description: Podcasts (shows) in your Transistor account.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Shows
  properties:
  - type: OpenAPI
    url: openapi/transistor-shows-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
- aid: transistor:transistor-subscribers-api
  name: Transistor Subscribers API
  description: Private (subscriber-only) podcast subscribers.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Subscribers
  properties:
  - type: OpenAPI
    url: openapi/transistor-subscribers-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
- aid: transistor:transistor-webhooks-api
  name: Transistor Webhooks API
  description: Event webhook subscriptions.
  humanURL: https://developers.transistor.fm/#Show
  baseURL: https://api.transistor.fm/v1
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/transistor-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developers.transistor.fm/
  - type: APIReference
    url: https://developers.transistor.fm/#Show
  - type: PostmanCollection
    url: collections/transistor.postman_collection.json
  - type: OpenCollection
    url: collections/transistor.opencollection.json
  - type: APIReference
    url: https://developers.transistor.fm/#Episode
  - type: APIReference
    url: https://developers.transistor.fm/#Analytics
  - type: APIReference
    url: https://developers.transistor.fm/#Subscriber
  - type: APIReference
    url: https://developers.transistor.fm/#Webhook
common:
- type: CapabilityMap
  url: capabilities/transistor-capability-edges.yml
  name: Transistor Business Capability Map
- type: AgenticAccess
  url: agentic-access/transistor-agentic-access.yml
- type: TrustCenter
  url: security/transistor-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/transistor-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/transistor-domain-security.yml
- type: Authentication
  url: authentication/transistor-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/transistorfm
- type: Website
  url: https://transistor.fm
- type: Documentation
  url: https://developers.transistor.fm/
- type: Plans
  url: plans/transistor-plans-pricing.yml
- type: RateLimits
  url: rate-limits/transistor-rate-limits.yml
- type: FinOps
  url: finops/transistor-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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