Open Podcast API

The Open Podcast API is an initiative aiming to provide a feature-complete synchronization API specification for podcast (web) apps and user-focused servers. The specification covers synchronization of subscriptions, listening progress, favorites, queues, and device state across compliant clients and self-hosted servers, with the goal of giving listeners portable control of their podcast data.

Open Podcast API is listed with 6 APIs on the APIs.io network. Tagged areas include Audio, Episodes, Open Standard, Podcasts, and Subscription.

Open Podcast API’s developer surface includes documentation and 8 more developer resources.

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9.7/100 minimal ▬ flat Agent 1/100 human only Front door AI 1/6 silent Heartbeat 74/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

6 APIs

Audio Episodes Open Standard Podcasts Subscription Sync

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 9.7/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 1.1 / 17

Operational Transparency 1.3 / 11

Contract Governance 0.0 / 10

Discoverability 5.3 / 9

Regulatory Posture 0.0 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points Ask about this →
Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Developer Ergonomics scores 14.3 — up to +17.1 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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APIs 6

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

Open Podcast Authentication API

Authenticate users against an Open Podcast compliant server, establishing the session used for subsequent subscription, action, and device endpoints.

Open Podcast Subscriptions API

Synchronize a user's podcast subscriptions across clients, including adding and removing feed URLs and retrieving the current subscription set per device.

Open Podcast Episode Actions API

Record and synchronize per-episode listening actions such as play, pause, download, delete, and flag, including timestamp and position metadata.

Open Podcast Devices API

Register and manage the devices a user syncs from, allowing servers to track per-device subscription state and last-sync timestamps.

Open Podcast Favorites API

Synchronize a user's favorited episodes across clients so that liked or starred items remain consistent regardless of which app or device the user is on.

Open Podcast Queue API

Synchronize the user's playback queue (up-next list) across clients, including ordering, additions, and removals of episodes.

Open Podcast API pricing

Not yet checked against Open Podcast API's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Open Podcast API's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Open Podcast API Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Open Podcast API Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Open Podcast API Finops

FINOPS

Security Posture 1

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

Open Podcast API Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Forums

Forums

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Matrix Chat

Matrix Chat

Source (apis.yml)

aid: open-podcast-api-open-podcast-api
name: Open Podcast API
description: The Open Podcast API is an initiative aiming to provide a feature-complete synchronization API specification
  for podcast (web) apps and user-focused servers. The specification covers synchronization of subscriptions, listening progress,
  favorites, queues, and device state across compliant clients and self-hosted servers, with the goal of giving listeners
  portable control of their podcast data.
type: Index
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: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/open-podcast-api-open-podcast-api.png
tags:
- Audio
- Episodes
- Open Standard
- Podcasts
- Subscription
- Sync
tags_raw:
- Audio
- Episodes
- Open Standards
- Podcasts
- Subscriptions
- Sync
created: '2025-05-02'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/open-podcast-api-open-podcast-api/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: open-podcast-api-open-podcast-api:authentication-api
  name: Open Podcast Authentication API
  description: Authenticate users against an Open Podcast compliant server, establishing the session used for subsequent subscription,
    action, and device endpoints.
  humanURL: https://openpodcastapi.org/
  tags:
  - Authentication
  - Sessions
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
- aid: open-podcast-api-open-podcast-api:subscriptions-api
  name: Open Podcast Subscriptions API
  description: Synchronize a user's podcast subscriptions across clients, including adding and removing feed URLs and retrieving
    the current subscription set per device.
  humanURL: https://openpodcastapi.org/
  tags:
  - Feed
  - Subscription
  - Sync
  tags_raw:
  - Feeds
  - Subscriptions
  - Sync
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
- aid: open-podcast-api-open-podcast-api:episode-actions-api
  name: Open Podcast Episode Actions API
  description: Record and synchronize per-episode listening actions such as play, pause, download, delete, and flag, including
    timestamp and position metadata.
  humanURL: https://openpodcastapi.org/
  tags:
  - Episodes
  - Listening Progress
  - Sync
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
- aid: open-podcast-api-open-podcast-api:devices-api
  name: Open Podcast Devices API
  description: Register and manage the devices a user syncs from, allowing servers to track per-device subscription state
    and last-sync timestamps.
  humanURL: https://openpodcastapi.org/
  tags:
  - Devices
  - Registration
  - Sync
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
- aid: open-podcast-api-open-podcast-api:favorites-api
  name: Open Podcast Favorites API
  description: Synchronize a user's favorited episodes across clients so that liked or starred items remain consistent regardless
    of which app or device the user is on.
  humanURL: https://openpodcastapi.org/
  tags:
  - Favorites
  - Sync
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
- aid: open-podcast-api-open-podcast-api:queue-api
  name: Open Podcast Queue API
  description: Synchronize the user's playback queue (up-next list) across clients, including ordering, additions, and removals
    of episodes.
  humanURL: https://openpodcastapi.org/
  tags:
  - Playback
  - Queues
  - Sync
  tags_raw:
  - Playback
  - Queue
  - Sync
  properties:
  - type: Documentation
    url: https://openpodcastapi.org/
common:
- type: Plans
  url: plans/open-podcast-api-open-podcast-api-plans-pricing.yml
- type: RateLimits
  url: rate-limits/open-podcast-api-open-podcast-api-rate-limits.yml
- type: FinOps
  url: finops/open-podcast-api-open-podcast-api-finops.yml
- type: DomainSecurity
  url: security/open-podcast-api-open-podcast-api-domain-security.yml
- type: Website
  url: https://openpodcastapi.org/
- type: Documentation
  url: https://openpodcastapi.org/
- type: GitHubOrganization
  url: https://github.com/openpodcastapi
- type: Forums
  url: https://github.com/orgs/openpodcastapi/discussions
- type: Matrix Chat
  url: https://matrix.to/#/#openpodcastapi:matrix.org
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Open Podcast API — frequently asked questions

Does Open Podcast API have an API?

Yes. APIs.io lists 6 APIs from Open Podcast API, including Open Podcast Authentication API, Open Podcast Subscriptions API and Open Podcast Episode Actions API, and 3 more.

How much does the Open Podcast API cost?

APIs.io lists 3 pricing plans for Open Podcast API, with each plan's price, limits and inclusions under Pricing on this page.

Is the Open Podcast API ready for AI agents?

Open Podcast API has a Kin Score of 9.7 out of 100 (minimal) and an Agent Readiness score of 0.6 (human-only), scored by API Evangelist on 2026-11-13.

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