PoetryDB

PoetryDB is a public REST API providing programmatic access to a database of English-language poems. Developers can search the collection by author name, poem title, line content, and line count. The API requires no authentication or API key, returns JSON or plain text responses, and supports CORS. It is built on Ruby and Sinatra with a MongoDB datastore and is maintained as a free open-source resource for poets and developers.

PoetryDB is listed with 1 API on the APIs.io network. Tagged areas include Poetry, Literature, Public Domain, English Language, and Search.

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

PoetryDB’s developer surface includes documentation and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

20.4/100 emerging ▬ flat Agent 16/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive open core · GPL-2.0 Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 API

Poetry Literature Public Domain English Language Search Open Data

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 20.4/100 · emerging

Contract Quality 7.6 / 19

Developer Ergonomics 1.4 / 15

Access Clarity 0.8 / 15

Operational Transparency 1.5 / 10

Contract Governance 0.9 / 9

Discoverability 4.3 / 8

Regulatory Posture 2.5 / 15

Open Source Surface 0.0 / 10

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 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

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 75 points between them, because both conditional facets apply and carry 25 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 9.5 — up to +18.1 composite points
Contract Quality scores 40.7 — up to +14.8 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/poetry-db/apis.yml: open an issue on github.com/api-evangelist/poetry-db 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 1

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

PoetryDB API

Search and retrieve English-language poems by author, title, line content, and line count. Returns structured JSON with title, author, lines array, and linecount fields. No auth...

PoetryDB API pricing

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

Plan	Price
Free	Free

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Poetry Db Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Poetry Db Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

PoetryDB

SLA

FinOps 1

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

Poetry Db Finops

FINOPS

Semantic Vocabularies 1

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

context Context

5 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

PoetryDB — jsonschema rules

4 rules · 3 warnings 1 info

SPECTRAL

JSON Schema 1

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

Poem

4 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Get Poems By Author

4 fields

EXAMPLE

Get Poems By Linecount

4 fields

EXAMPLE

Get Random Poems

4 fields

EXAMPLE

Security Posture 2

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

Poetry Db Domain Security

TLSv1.3

SECURITY

Poetry Db Vulnerability Disclosure

no policy recorded

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

PublicAPIsListing

PublicAPIsListing

Source (apis.yml)

aid: poetry-db
name: PoetryDB
description: PoetryDB is a public REST API providing programmatic access to a database of English-language poems. Developers
  can search the collection by author name, poem title, line content, and line count. The API requires no authentication or
  API key, returns JSON or plain text responses, and supports CORS. It is built on Ruby and Sinatra with a MongoDB datastore
  and is maintained as a free open-source resource for poets and developers.
deliveryModel:
  model: open-core
  license: GPL-2.0
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/poetry-db.png
url: https://raw.githubusercontent.com/api-evangelist/poetry-db/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Poetry
- Literature
- Public Domain
- English Language
- Search
- Open Data
apis:
- aid: poetry-db:poetry-db
  name: PoetryDB API
  description: Search and retrieve English-language poems by author, title, line content, and line count. Returns structured
    JSON with title, author, lines array, and linecount fields. No authentication required.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://poetrydb.org
  tags:
  - Poetry
  - Literature
  - Search
  - Public Domain
  properties:
  - type: Documentation
    url: https://github.com/thundercomb/poetrydb/blob/master/README.md
  - type: GitHubRepository
    url: https://github.com/thundercomb/poetrydb
  - type: OpenAPI
    url: https://raw.githubusercontent.com/api-evangelist/poetry-db/refs/heads/main/openapi/openapi.yml
  contact:
  - FN: thundercomb
    url: https://github.com/thundercomb
    X: https://x.com/thundercomb
common:
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
- type: IssueTracker
  url: https://github.com/thundercomb/poetrydb/issues
- type: License
  name: GPL-2.0
  url: https://github.com/thundercomb/poetrydb/blob/master/LICENSE
- type: VulnerabilityDisclosure
  url: security/poetry-db-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/poetry-db-domain-security.yml
- type: Website
  url: https://poetrydb.org
- type: Documentation
  url: https://github.com/thundercomb/poetrydb/blob/master/README.md
- type: GitHubOrg
  url: https://github.com/thundercomb
- type: GitHubRepository
  url: https://github.com/thundercomb/poetrydb
- type: X
  url: https://x.com/po3db
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/poetry-db/refs/heads/main/plans/poetry-db-plans-pricing.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/poetry-db/refs/heads/main/rate-limits/poetry-db-rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/poetry-db/refs/heads/main/finops/poetry-db-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

PoetryDB API — frequently asked questions

Does PoetryDB have an API?

Yes. APIs.io lists 1 API from PoetryDB, including PoetryDB API.

Is there an OpenAPI specification for the PoetryDB API?

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

How much does the PoetryDB API cost?

APIs.io lists 1 pricing plan for PoetryDB, with each plan's price, limits and inclusions under Pricing on this page.

Is the PoetryDB API ready for AI agents?

PoetryDB has a Kin Score of 20.4 out of 100 (emerging) and an Agent Readiness score of 15.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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