acornonaut-app

Acornonaut is an AI-powered platform that transforms YouTube videos into spaced-repetition flashcards. Users can paste video URLs or playlists, and the service extracts transcripts, identifies key concepts, and generates concise flashcards that are exported to Anki or studied directly. The tool offers three free playlists, no credit card required, and aims to help learners retain knowledge efficiently.

acornonaut-app publishes 3 API contracts indexed on the APIs.io network: Cards API, Export API, and Playlists API. Tagged areas include Company, AI, Education, Flashcards, and YouTube.

The acornonaut-app catalog on APIs.io includes 1 Spectral governance ruleset.

acornonaut-app’s developer surface includes authentication, documentation, getting-started guide, pricing, signup flow, support, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.2/100 developing Agent 27/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 Agent Skills

CompanyAIEducation Flashcards YouTube

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 50.2/100 · developing

Contract Quality 10.8 / 21

Developer Ergonomics 7.6 / 17

Access Clarity 13.0 / 17

Operational Transparency 1.7 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.8 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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

Regulatory Posture applies to this provider. Its tags matched the Education & Research regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 50.8 — up to +12.3 composite points
Developer Ergonomics scores 44.5 — up to +11.1 composite points
Operational Transparency scores 15.8 — up to +10.9 composite points

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.

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 the provider profile at artifacts.apis.io/acornonaut-app/apis.yml: open an issue on github.com/api-evangelist/acornonaut-app to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

acornonaut-app Cards API

The Cards API from acornonaut-app — 1 operation(s) for cards.

acornonaut-app Export API

The Export API from acornonaut-app — 1 operation(s) for export.

acornonaut-app Playlists API

The Playlists API from acornonaut-app — 3 operation(s) for playlists.

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

playlist-management

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Acornonaut App Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Acornonaut App Rate Limits

0 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

acornonaut-app API Rules

13 rules · 11 errors 1 warnings 1 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

CreatePlaylistRequest

0 properties

JSON SCHEMA

PlaylistListResponse

0 properties

JSON SCHEMA

Security Posture 2

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

Acornonaut App Authentication

1 scheme

SECURITY

Acornonaut App Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Acornonaut App Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Acornonaut App Agentic Access

7 operations · 3 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

DataModel

Spectral

Vocabulary

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: acornonaut-app
name: acornonaut-app
description: Acornonaut is an AI-powered platform that transforms YouTube videos into spaced-repetition flashcards. Users
  can paste video URLs or playlists, and the service extracts transcripts, identifies key concepts, and generates concise
  flashcards that are exported to Anki or studied directly. The tool offers three free playlists, no credit card required,
  and aims to help learners retain knowledge efficiently.
url: https://artifacts.apis.io/acornonaut-app/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- Company
- AI
- Education
- Flashcards
- YouTube
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://acornonaut.app/brand/og-acornonaut.png
common:
- type: DataModel
  url: data-model/acornonaut-app-data-model.yml
- type: AgenticAccess
  url: agentic-access/acornonaut-app-agentic-access.yml
- type: Plans
  url: plans/acornonaut-app-plans-pricing.yml
- type: Spectral
  url: rules/acornonaut-app-rules.yml
- type: Vocabulary
  url: vocabulary/acornonaut-app-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/acornonaut-app-authentication.yml
- type: ErrorCatalog
  url: errors/acornonaut-app-problem-types.yml
- type: Conformance
  url: conformance/acornonaut-app-conformance.yml
- type: AgentCard
  url: a2a/acornonaut-app-a2a.yml
- type: Hosts
  url: hosts/acornonaut-app-hosts.yml
- type: Vendors
  url: vendors/acornonaut-app-vendors.yml
- type: StatusPage
  url: https://acornonaut.app/status
- type: DomainSecurity
  url: security/acornonaut-app-domain-security.yml
- type: Website
  url: https://acornonaut.app/
- type: Documentation
  url: https://acornonaut.app/docs/mcp
- type: GettingStarted
  url: https://acornonaut.app/sign-up
- type: Pricing
  url: https://acornonaut.app/#pricing
- type: SignUp
  url: https://acornonaut.app/sign-up
- type: Login
  url: https://acornonaut.app/sign-in
- type: Support
  url: https://acornonaut.app/support
- type: PrivacyPolicy
  url: https://acornonaut.app/privacy
- type: TermsOfService
  url: https://acornonaut.app/terms
apis:
- aid: acornonaut-app:acornonaut-app-cards-api
  name: acornonaut-app Cards API
  description: The Cards API from acornonaut-app — 1 operation(s) for cards.
  humanURL: https://acornonaut.app/docs/mcp
  baseURL: https://acornonaut.app/api/v1
  tags:
  - Cards
  properties:
  - type: OpenAPI
    url: openapi/acornonaut-app-cards-api-openapi.yml
  - type: JSONSchema
    url: json-schema/acornonaut-app-create-playlist-request-schema.json
  - type: JSONSchema
    url: json-schema/acornonaut-app-playlist-list-response-schema.json
- aid: acornonaut-app:acornonaut-app-export-api
  name: acornonaut-app Export API
  description: The Export API from acornonaut-app — 1 operation(s) for export.
  humanURL: https://acornonaut.app/docs/mcp
  baseURL: https://acornonaut.app/api/v1
  tags:
  - Export
  properties:
  - type: OpenAPI
    url: openapi/acornonaut-app-export-api-openapi.yml
  - type: JSONSchema
    url: json-schema/acornonaut-app-create-playlist-request-schema.json
  - type: JSONSchema
    url: json-schema/acornonaut-app-playlist-list-response-schema.json
- aid: acornonaut-app:acornonaut-app-playlists-api
  name: acornonaut-app Playlists API
  description: The Playlists API from acornonaut-app — 3 operation(s) for playlists.
  humanURL: https://acornonaut.app/docs/mcp
  baseURL: https://acornonaut.app/api/v1
  tags:
  - Playlists
  properties:
  - type: OpenAPI
    url: openapi/acornonaut-app-playlists-api-openapi.yml
  - type: JSONSchema
    url: json-schema/acornonaut-app-create-playlist-request-schema.json
  - type: JSONSchema
    url: json-schema/acornonaut-app-playlist-list-response-schema.json
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 29
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

acornonaut-app API — frequently asked questions

Does acornonaut-app have an API?

Yes. APIs.io lists 3 APIs from acornonaut-app, including acornonaut-app Cards API, acornonaut-app Export API and acornonaut-app Playlists API.

Is there an OpenAPI specification for the acornonaut-app API?

Yes. APIs.io indexes 3 OpenAPI specifications for acornonaut-app, each linked for download from this page.

How do I authenticate with the acornonaut-app API?

acornonaut-app uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Acornonaut App Authentication.

How much does the acornonaut-app API cost?

APIs.io lists 3 pricing plans for acornonaut-app, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the acornonaut-app API ready for AI agents?

acornonaut-app has a Kin Score of 50.2 out of 100 (developing) and an Agent Readiness score of 26.8 (agent-aware), scored by API Evangelist on 2026-10-31.

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