Flipnem

Flipnem is a hosted, Anki‑compatible flashcard platform that uses the FSRS spaced‑repetition algorithm. Users can import and share decks, study on any device, and export their collections without installing any software. The service offers a free tier and paid plans, providing secure, isolated storage for each user’s data.

Flipnem is listed with 1 API on the APIs.io network. Tagged areas include Education, Flashcards, Spaced Repetition, Anki Compatible, and Software-as-a-Service.

Flipnem’s developer surface includes changelog, getting-started guide, API reference, pricing, engineering blog, support, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

24.1/100 emerging Agent 25/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 API

Education Flashcards Spaced RepetitionAnki CompatibleSoftware-as-a-Service

Kin Score

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

Composite quality — 24.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 5.5 / 17

Access Clarity 7.2 / 17

Operational Transparency 1.6 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 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 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author 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 →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

7 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 →
Developer Ergonomics scores 32.6 — up to +13.5 composite points Ask about this →
Contract Governance scores 4.5 — up to +11.5 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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/flipnem-com/apis.yml: open an issue on github.com/api-evangelist/flipnem-com 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 →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

Flipnem Agent API

Create Anki-compatible flashcard decks programmatically.

Flipnem API pricing

Prices published by Flipnem. A free plan or tier is listed.

Plan	Price
Learner	Free
Scholar	$1/mo or $10/yr

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Flipnem Plans Pricing

2 plans

PLANS

Security Posture 1

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

Flipnem Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: flipnem-com
name: Flipnem
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  probe_state: gated
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://flipnem.com/og-image.png
description: Flipnem is a hosted, Anki‑compatible flashcard platform that uses the FSRS spaced‑repetition algorithm. Users
  can import and share decks, study on any device, and export their collections without installing any software. The service
  offers a free tier and paid plans, providing secure, isolated storage for each user’s data.
url: https://artifacts.apis.io/flipnem-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-08 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-08'
modified: '2026-11-08'
tags:
- Education
- Flashcards
- Spaced Repetition
- Anki Compatible
- Software-as-a-Service
tags_raw:
- Education
- Flashcards
- Spaced Repetition
- Anki Compatible
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/flipnem-com-plans-pricing.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ChangeLog
  url: changelog/flipnem-com-changelog.yml
- type: Conformance
  url: conformance/flipnem-com-conformance.yml
- type: LLMsTxt
  url: llms/flipnem-com-llms.txt
- type: WellKnown
  url: well-known/flipnem-com-well-known.yml
- type: Hosts
  url: hosts/flipnem-com-hosts.yml
- type: GettingStarted
  url: https://flipnem.com/help/getting-started
- type: ChangeLog
  url: https://flipnem.com/changelog
- type: APIReference
  url: https://flipnem.com/llms.txt
- type: DomainSecurity
  url: security/flipnem-com-domain-security.yml
- type: Website
  url: https://flipnem.com/
- type: Pricing
  url: https://flipnem.com/#pricing
- type: Blog
  url: https://flipnem.com/#blog
- type: Support
  url: mailto:support@flipnem.com
- type: PrivacyPolicy
  url: https://flipnem.com/privacy
- type: TermsOfService
  url: https://flipnem.com/terms
apis:
- name: Flipnem Agent API
  description: Create Anki-compatible flashcard decks programmatically.
  humanURL: https://flipnem.com/api/openapi.json
  baseURL: https://flipnem.com/api
  aid: flipnem-com:flipnem-agent-api
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-11-08'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://flipnem.com/api/mcp
    status: 401
  - url: https://flipnem.com/
    status: 200
x-enrichment:
  date: '2026-11-08'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Flipnem API — frequently asked questions

Does Flipnem have an API?

Yes. APIs.io lists 1 API from Flipnem, including Flipnem Agent API.

How much does the Flipnem API cost?

Flipnem publishes its prices; its Scholar plan is $1/mo or $10/yr as of 2026-11-08. APIs.io lists 2 pricing plans for Flipnem, with each plan's price, limits and inclusions under Pricing on this page.

Is the Flipnem API ready for AI agents?

Flipnem has a Kin Score of 24.1 out of 100 (emerging) and an Agent Readiness score of 25.1 (agent-aware), scored by API Evangelist on 2026-11-13.

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