Greenlit Books

Greenlit Books is an independent publisher of practical AI books for operators, engineers, and leaders. They provide hands‑on guides on building, governing, and understanding AI systems, with titles available free on Kindle Unlimited and for purchase. The company emphasizes checkable claims and real‑world applicability, targeting technical audiences seeking actionable knowledge.

Greenlit Books publishes 11 API contracts indexed on the APIs.io network, including Books API, Catalog API, Cite API, and 8 more. Tagged areas include Publishing, Artificial Intelligence, Books, Technical, and Education.

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

Greenlit Books’ developer surface includes changelog, documentation, getting-started guide, API reference, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

40.6/100 developing Agent 30/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

2 published contracts

Publishing Artificial Intelligence Books Technical Education Company

Kin Score

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

Composite quality — 40.6/100 · developing

Contract Quality 12.9 / 21

Developer Ergonomics 4.9 / 17

Access Clarity 7.2 / 17

Operational Transparency 1.6 / 11

Contract Governance 2.2 / 10

Discoverability 6.5 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 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 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 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 →
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 →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 28.6 — up to +14.3 composite points Ask about this →
Access Clarity scores 42.6 — up to +11.5 composite points Ask about this →
Operational Transparency scores 14.3 — up to +11.1 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.

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/greenlitbooks-com/apis.yml: open an issue on github.com/api-evangelist/greenlitbooks-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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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

Greenlit Books Books API

The Books API from Greenlit Books — 2 operation(s) for books.

Greenlit Books Catalog API

The Catalog API from Greenlit Books — 1 operation(s) for catalog.

Greenlit Books Cite API

The Cite API from Greenlit Books — 1 operation(s) for cite.

Greenlit Books Claims API

The Claims API from Greenlit Books — 2 operation(s) for claims.

Greenlit Books Concepts API

The Concepts API from Greenlit Books — 1 operation(s) for concepts.

Greenlit Books Greenlit Books API

The Greenlit Books API API from Greenlit Books — 1 operation(s) for greenlit books api.

Greenlit Books Pages API

The Pages API from Greenlit Books — 2 operation(s) for pages.

Greenlit Books Search API

The Search API from Greenlit Books — 1 operation(s) for search.

Greenlit Books Series API

The Series API from Greenlit Books — 2 operation(s) for series.

Greenlit Books Terms API

The Terms API from Greenlit Books — 2 operation(s) for terms.

Greenlit Books Topics API

The Topics API from Greenlit Books — 1 operation(s) for topics.

Scroll for all 11

Greenlit Books API pricing

Prices published by Greenlit Books, read 2026-11-10 from greenlitbooks.com/field-notes/what-are-openai-dots-plans-....

Plan	Price
Pro 100	$100
Pro 200	$200
Pro 500	$500

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Greenlit Books Plans Pricing

3 plans

PLANS

Semantic Vocabularies 1

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

Greenlitbooks Com Context

18 classes · 96 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.

Greenlit Books API Rules

44 rules · 41 error-severity 1 warn-severity 2 info-severity

SPECTRAL

JSON Schema 6

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

BookDetail

7 properties

JSON SCHEMA

Book

20 properties

JSON SCHEMA

ClaimSearchResult

6 properties

JSON SCHEMA

SearchResult

3 properties

JSON SCHEMA

Term

16 properties

JSON SCHEMA

Topic

7 properties

JSON SCHEMA

Security Posture 1

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

Greenlit Books Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Greenlit Books Agentic Access

22 operations

22 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

TermsOfService

TermsOfService

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: greenlitbooks-com
name: Greenlit Books
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://greenlitbooks.com/opengraph-image?a2e41f8fac6c6cb0
description: Greenlit Books is an independent publisher of practical AI books for operators, engineers, and leaders. They
  provide hands‑on guides on building, governing, and understanding AI systems, with titles available free on Kindle Unlimited
  and for purchase. The company emphasizes checkable claims and real‑world applicability, targeting technical audiences seeking
  actionable knowledge.
url: https://artifacts.apis.io/greenlitbooks-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)
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Publishing
- Artificial Intelligence
- Books
- Technical
- Education
- Company
tags_raw:
- Publishing
- AI
- Books
- Technical
- Education
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/greenlitbooks-com-agentic-access.yml
- type: Plans
  url: plans/greenlitbooks-com-plans-pricing.yml
- type: Spectral
  url: rules/greenlitbooks-com-rules.yml
- type: JSONLD
  url: json-ld/greenlitbooks-com-context.jsonld
- type: Vocabulary
  url: vocabulary/greenlitbooks-com-vocabulary.yml
- type: DataModel
  url: data-model/greenlitbooks-com-data-model.yml
- type: ChangeLog
  url: changelog/greenlitbooks-com-changelog.yml
- type: ErrorCatalog
  url: errors/greenlitbooks-com-problem-types.yml
- type: Conformance
  url: conformance/greenlitbooks-com-conformance.yml
- type: LLMsTxt
  url: llms/greenlitbooks-com-llms.txt
- type: WellKnown
  url: well-known/greenlitbooks-com-well-known.yml
- type: Hosts
  url: hosts/greenlitbooks-com-hosts.yml
- type: Vendors
  url: vendors/greenlitbooks-com-vendors.yml
- type: TermsOfService
  url: https://greenlitbooks.com/terms
- type: PrivacyPolicy
  url: https://greenlitbooks.com/privacy
- type: Documentation
  url: https://greenlitbooks.com/guides
- type: GettingStarted
  url: https://greenlitbooks.com/guides/grok-bot-getting-started
- type: APIReference
  url: https://greenlitbooks.com/developers
- type: DomainSecurity
  url: security/greenlitbooks-com-domain-security.yml
- type: Website
  url: https://greenlitbooks.com/
apis:
- aid: greenlitbooks-com:greenlitbooks-com-books-api
  name: Greenlit Books Books API
  description: The Books API from Greenlit Books — 2 operation(s) for books.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Books
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-books-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-catalog-api
  name: Greenlit Books Catalog API
  description: The Catalog API from Greenlit Books — 1 operation(s) for catalog.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-catalog-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-cite-api
  name: Greenlit Books Cite API
  description: The Cite API from Greenlit Books — 1 operation(s) for cite.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Cite
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-cite-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-claims-api
  name: Greenlit Books Claims API
  description: The Claims API from Greenlit Books — 2 operation(s) for claims.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Claims
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-claims-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-concepts-api
  name: Greenlit Books Concepts API
  description: The Concepts API from Greenlit Books — 1 operation(s) for concepts.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Concepts
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-concepts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-greenlit-books-api-api
  name: Greenlit Books Greenlit Books API
  description: The Greenlit Books API API from Greenlit Books — 1 operation(s) for greenlit books api.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Greenlit Books API
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-greenlit-books-api-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-pages-api
  name: Greenlit Books Pages API
  description: The Pages API from Greenlit Books — 2 operation(s) for pages.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Pages
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-pages-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-search-api
  name: Greenlit Books Search API
  description: The Search API from Greenlit Books — 1 operation(s) for search.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-search-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-series-api
  name: Greenlit Books Series API
  description: The Series API from Greenlit Books — 2 operation(s) for series.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Series
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-series-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-terms-api
  name: Greenlit Books Terms API
  description: The Terms API from Greenlit Books — 2 operation(s) for terms.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Terms
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-terms-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
- aid: greenlitbooks-com:greenlitbooks-com-topics-api
  name: Greenlit Books Topics API
  description: The Topics API from Greenlit Books — 1 operation(s) for topics.
  humanURL: https://greenlitbooks.com/developers
  baseURL: https://greenlitbooks.com/api/v1
  tags:
  - Topic
  tags_raw:
  - Topics
  properties:
  - type: OpenAPI
    url: openapi/greenlitbooks-com-topics-api-openapi.yml
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-detail-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-book-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-term-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-claim-search-result-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-topic-schema.json
  - type: JSONSchema
    url: json-schema/greenlitbooks-com-search-result-schema.json
x-enrichment:
  date: '2026-11-10'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Greenlit Books API — frequently asked questions

Does Greenlit Books have an API?

Yes. APIs.io lists 11 APIs from Greenlit Books, including Greenlit Books Books API, Greenlit Books Catalog API and Greenlit Books Cite API, and 8 more.

Is there an OpenAPI specification for the Greenlit Books API?

Yes. APIs.io indexes 11 OpenAPI specifications for Greenlit Books, each linked for download from this page.

How much does the Greenlit Books API cost?

Greenlit Books publishes its prices; its Pro 100 plan is $100 as of 2026-11-10. APIs.io lists 3 pricing plans for Greenlit Books, with each plan's price, limits and inclusions under Pricing on this page.

Is the Greenlit Books API ready for AI agents?

Greenlit Books has a Kin Score of 40.6 out of 100 (developing) and an Agent Readiness score of 29.9 (agent-ready), scored by API Evangelist on 2026-11-13.

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