Link Crypt

Link Crypt is the URL layer of an AI second brain, enabling capture, auto‑tagging, and retrieval of bookmarks via a REST API. It integrates with Chrome, iOS share sheet, Claude Code, ChatGPT Actions, Obsidian, and other agents, offering AI‑enhanced organization and search across millions of links.

Link Crypt is listed with 1 API on the APIs.io network. Tagged areas include Artificial Intelligence, Bookmarking, Knowledge Management, Productivity, and LinkCrypt.

The Link Crypt catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Link Crypt’s developer surface includes authentication, documentation, getting-started guide, pricing, support, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.0/100 thin Agent 19/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaidSelf serve

1 API

Artificial Intelligence Bookmarking Knowledge Management ProductivityLinkCrypt

Kin Score

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

Composite quality — 30.0/100 · thin

Contract Quality 5.2 / 21

Developer Ergonomics 6.5 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 3.6 / 10

Discoverability 4.6 / 9

Regulatory Posture 2.0 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

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

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 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 →

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 24.7 — up to +18.8 composite points Ask about this →
Access Clarity scores 34.0 — up to +13.2 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 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/getlinkcrypt-com/apis.yml: open an issue on github.com/api-evangelist/getlinkcrypt-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 →

APIs 1

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

Link Crypt API

Link Crypt API as documented publicly: 29 operations. Contract generated from the documentation by API Evangelist (2026-11-10); not the provider's own document.

Link Crypt API pricing

Prices published by Link Crypt, read 2026-11-10 from getlinkcrypt.com/subscription.

Plan	Price
Monthly	$3.99/month
Annual	$19.99/year

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Link Crypt Plans Pricing

2 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Getlinkcrypt Com Context

15 classes · 11 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Link Crypt API Rules

42 rules · 40 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

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

PatchApiV1LinksIdRequest

4 properties

JSON SCHEMA

PostAnalyzeDigestRequest

2 properties

JSON SCHEMA

PostApiV1AnalyzeDigestRequest

2 properties

JSON SCHEMA

PostApiV1LinksRequest

4 properties

JSON SCHEMA

PostApiV1TagsRequest

2 properties

JSON SCHEMA

PostLinksRequest

4 properties

JSON SCHEMA

Security Posture 2

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

Link Crypt Authentication

2 schemes

SECURITY

Link Crypt 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

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: getlinkcrypt-com
name: Link Crypt
description: Link Crypt is the URL layer of an AI second brain, enabling capture, auto‑tagging, and retrieval of bookmarks
  via a REST API. It integrates with Chrome, iOS share sheet, Claude Code, ChatGPT Actions, Obsidian, and other agents, offering
  AI‑enhanced organization and search across millions of links.
url: https://artifacts.apis.io/getlinkcrypt-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-10 (modular-v1; was harvest)
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Paid · Self-serve signup
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-09'
modified: '2026-11-09'
tags:
- Artificial Intelligence
- Bookmarking
- Knowledge Management
- Productivity
- LinkCrypt
tags_raw:
- AI
- Bookmarking
- KnowledgeManagement
- Productivity
- LinkCrypt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/getlinkcrypt-com-plans-pricing.yml
- type: Spectral
  url: rules/getlinkcrypt-com-rules.yml
- type: JSONLD
  url: json-ld/getlinkcrypt-com-context.jsonld
- type: Vocabulary
  url: vocabulary/getlinkcrypt-com-vocabulary.yml
- type: DataModel
  url: data-model/getlinkcrypt-com-data-model.yml
- type: Authentication
  url: authentication/getlinkcrypt-com-authentication.yml
- type: Conformance
  url: conformance/getlinkcrypt-com-conformance.yml
- type: LLMsTxt
  url: llms/getlinkcrypt-com-llms.txt
- type: Hosts
  url: hosts/getlinkcrypt-com-hosts.yml
- type: Vendors
  url: vendors/getlinkcrypt-com-vendors.yml
- type: DomainSecurity
  url: security/getlinkcrypt-com-domain-security.yml
- type: Website
  url: https://getlinkcrypt.com/
- type: Documentation
  url: https://getlinkcrypt.com/api
- type: GettingStarted
  url: https://getlinkcrypt.com/onboarding
- type: Pricing
  url: https://getlinkcrypt.com/subscription
- type: PrivacyPolicy
  url: https://getlinkcrypt.com/privacy
- type: Support
  url: https://getlinkcrypt.com/help
apis:
- aid: getlinkcrypt-com:getlinkcrypt-com-api
  name: Link Crypt API
  description: 'Link Crypt API as documented publicly: 29 operations. Contract generated from the documentation by API Evangelist
    (2026-11-10); not the provider''s own document.'
  humanURL: https://getlinkcrypt.com/api
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/getlinkcrypt-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-patch-api-v1-links-id-request-schema.json
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-post-api-v1-links-request-schema.json
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-post-links-request-schema.json
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-post-analyze-digest-request-schema.json
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-post-api-v1-tags-request-schema.json
  - type: JSONSchema
    url: json-schema/getlinkcrypt-com-post-api-v1-analyze-digest-request-schema.json
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: API reference page is a JavaScript‑rendered SPA with no static OpenAPI spec.
  evidence:
  - url: https://getlinkcrypt.com/api
    status: 200
  checked: '2026-11-10'
x-enrichment:
  date: '2026-11-10'
  status: enriched
  artifacts_added: 25
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Link Crypt API — frequently asked questions

Does Link Crypt have an API?

Yes. APIs.io lists 1 API from Link Crypt, including Link Crypt API.

Is there an OpenAPI specification for the Link Crypt API?

Yes. APIs.io indexes 1 OpenAPI specification for Link Crypt, each linked for download from this page.

How do I authenticate with the Link Crypt API?

Link Crypt uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Link Crypt Authentication.

How much does the Link Crypt API cost?

Link Crypt publishes its prices; its Monthly plan is $3.99/month as of 2026-11-10. APIs.io lists 2 pricing plans for Link Crypt, with each plan's price, limits and inclusions under Pricing on this page.

Is the Link Crypt API ready for AI agents?

Link Crypt has a Kin Score of 30.0 out of 100 (thin) and an Agent Readiness score of 18.7 (agent-aware), scored by API Evangelist on 2026-11-13.

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