Urantia Papers

A read-only REST API and MCP server for the Urantia Papers: papers, sections, and paragraphs by reference, keyword and semantic search, named entities, and cross-references to public domain texts of the world's religions. The MCP server covers the Papers and the Bible for now. The content endpoints are read-only and need no key.

Urantia Papers publishes 13 API contracts indexed on the APIs.io network, including Audio API, Bible API, Citation API, and 10 more. Tagged areas include Books, Public APIs, and A2A.

Urantia Papers’ developer surface includes support, documentation, changelog, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.2/100 thin ▬ flat Agent 44/100 agent ready Front door AI 5/6 prominent Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 published contract 1 MCP Servers

Books Public APIs A2A

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 32.2/100 · thin

Contract Quality 9.0 / 19

Developer Ergonomics 3.1 / 15

Access Clarity 3.2 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.0 / 9

Discoverability 6.0 / 8

Regulatory Posture 2.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 44/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 3 / 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 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. 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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APIs 13

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

Urantia Papers Audio API

The Audio API from Urantia Papers — 1 operation(s) for audio.

Urantia Papers Bible API

The Bible API from Urantia Papers — 6 operation(s) for bible.

Urantia Papers Citation API

The Citation API from Urantia Papers — 1 operation(s) for citation.

Urantia Papers Embeddings API

The Embeddings API from Urantia Papers — 2 operation(s) for embeddings.

Urantia Papers Entities API

The Entities API from Urantia Papers — 3 operation(s) for entities.

Urantia Papers Feedback API

The Feedback API from Urantia Papers — 1 operation(s) for feedback.

Urantia Papers Languages API

The Languages API from Urantia Papers — 1 operation(s) for languages.

Urantia Papers OG Images API

The OG Images API from Urantia Papers — 1 operation(s) for og images.

Urantia Papers Papers API

The Papers API from Urantia Papers — 3 operation(s) for papers.

Urantia Papers Paragraphs API

The Paragraphs API from Urantia Papers — 3 operation(s) for paragraphs.

Urantia Papers Search API

The Search API from Urantia Papers — 2 operation(s) for search.

Urantia Papers Table of Contents API

The Table of Contents API from Urantia Papers — 1 operation(s) for table of contents.

Urantia Papers Tools API

The Tools API from Urantia Papers — 2 operation(s) for tools.

Scroll for all 13

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Urantia Papers API

Remote MCP server at api.urantia.dev over streamable HTTP; 19 tools listed.

MCP SERVER

Security Posture 1

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

Urantia Papers Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

AgentSkills

MCPServerCard

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

License

License

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

AgentCard

AgentCard

PublicAPIsListing

PublicAPIsListing

APICatalog

APICatalog

ContentSignal

ContentSignal

Source (apis.yml)

aid: urantia-papers
name: Urantia Papers
description: 'A read-only REST API and MCP server for the Urantia Papers: papers, sections, and paragraphs by reference, keyword
  and semantic search, named entities, and cross-references to public domain texts of the world''s religions. The MCP server
  covers the Papers and the Bible for now. The content endpoints are read-only and need no key.'
url: https://urantia.dev
deliveryModel:
  model: unknown
  license: MIT
  open_source: true
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Free · Open access
  confidence: low
  source:
  - security
  generated: '2026-09-02'
  method: derived
specificationVersion: '0.23'
created: '2026-05-28'
modified: '2026-10-05'
x-source: public-apis/public-apis
x-category: Books
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Books
- Public APIs
- A2A
apis:
- aid: urantia-papers:urantia-papers-audio-api
  name: Urantia Papers Audio API
  description: The Audio API from Urantia Papers — 1 operation(s) for audio.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Audio
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-audio-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-bible-api
  name: Urantia Papers Bible API
  description: The Bible API from Urantia Papers — 6 operation(s) for bible.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Bible
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-bible-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-citation-api
  name: Urantia Papers Citation API
  description: The Citation API from Urantia Papers — 1 operation(s) for citation.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Citations
  tags_raw:
  - Citation
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-citation-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-embeddings-api
  name: Urantia Papers Embeddings API
  description: The Embeddings API from Urantia Papers — 2 operation(s) for embeddings.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Embeddings
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-embeddings-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-entities-api
  name: Urantia Papers Entities API
  description: The Entities API from Urantia Papers — 3 operation(s) for entities.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Entities
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-entities-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-feedback-api
  name: Urantia Papers Feedback API
  description: The Feedback API from Urantia Papers — 1 operation(s) for feedback.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Feedback
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-feedback-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-languages-api
  name: Urantia Papers Languages API
  description: The Languages API from Urantia Papers — 1 operation(s) for languages.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Language
  tags_raw:
  - Languages
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-languages-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-og-images-api
  name: Urantia Papers OG Images API
  description: The OG Images API from Urantia Papers — 1 operation(s) for og images.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - OG Images
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-og-images-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-papers-api
  name: Urantia Papers Papers API
  description: The Papers API from Urantia Papers — 3 operation(s) for papers.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Paper
  tags_raw:
  - Papers
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-papers-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-paragraphs-api
  name: Urantia Papers Paragraphs API
  description: The Paragraphs API from Urantia Papers — 3 operation(s) for paragraphs.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Paragraphs
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-paragraphs-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-search-api
  name: Urantia Papers Search API
  description: The Search API from Urantia Papers — 2 operation(s) for search.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-search-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-table-of-contents-api
  name: Urantia Papers Table of Contents API
  description: The Table of Contents API from Urantia Papers — 1 operation(s) for table of contents.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Table of Contents
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-table-of-contents-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
- aid: urantia-papers:urantia-papers-tools-api
  name: Urantia Papers Tools API
  description: The Tools API from Urantia Papers — 2 operation(s) for tools.
  humanURL: https://docs.urantia.dev/api-reference/introduction
  baseURL: https://api.urantia.dev
  tags:
  - Tools
  properties:
  - type: OpenAPI
    url: openapi/urantia-papers-tools-api-openapi.yml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://api.urantia.dev/openapi.json
  - type: Documentation
    url: https://docs.urantia.dev/api-reference/introduction
common:
- type: MCPServer
  url: mcp/urantia-papers-mcp.yml
- type: MCPServer
  url: https://api.urantia.dev/mcp
- type: AgentCard
  url: a2a/urantia-papers-a2a.yml
  name: A2A Agent Card
  description: Agent Card served at /.well-known/agent-card.json (near-conformant against A2A 1.0.0).
- type: DomainSecurity
  url: security/urantia-papers-domain-security.yml
- type: Website
  url: https://urantia.dev
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
- type: Support
  url: https://docs.urantia.dev/help
- type: Documentation
  url: https://docs.urantia.dev
- type: ChangeLog
  url: https://docs.urantia.dev/changelog
- type: StatusPage
  url: https://status.urantia.dev
- type: TermsOfService
  url: https://docs.urantia.dev/terms-of-service
- type: PrivacyPolicy
  url: https://docs.urantia.dev/privacy-policy
- type: License
  url: https://github.com/urantia-hub/urantia-dev-api/blob/main/LICENSE
- type: GitHubOrganization
  url: https://github.com/urantia-hub
- type: GitHubRepository
  url: https://github.com/urantia-hub/urantia-dev-api
- type: LLMsTxt
  url: https://docs.urantia.dev/llms.txt
- type: AgentSkills
  url: https://github.com/urantia-hub/urantia-papers-claude-code-plugin/tree/main/skills
- type: APICatalog
  url: https://api.urantia.dev/.well-known/api-catalog
- type: MCPServerCard
  url: https://api.urantia.dev/.well-known/mcp/server-card.json
- type: ContentSignal
  url: https://api.urantia.dev/robots.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://urantia.dev/.well-known/agent-card.json
  grade: conformant
  protocol_version: '0.3'
  control: 404
x-correction-request:
  requested: '2026-10-05'
  source:
  - https://github.com/api-evangelist/urantia-papers/pull/1
  request: Add the public OpenAPI 3.1 (https://api.urantia.dev/openapi.json, base https://api.urantia.dev), move docs to https://docs.urantia.dev,
    and add auth/rate-limit sections, the MCP server, Postman collection, SDKs, support, changelog, status, terms, privacy,
    license, GitHub org/repo, llms.txt, agent skills, the RFC 9727 catalog and the robots.txt Content-Signal line. The API
    is public, keyless, has no paid tier, and the code is MIT.
  ledger:
  - urantia-papers-11ebff0d
  - urantia-papers-26a50a7b (apis.io Add-form submission 2026-10-03, same provider)
  applied: '2026-10-05'
  applied_note: Applied by hand; every URL verified 200 on 2026-10-05 with 404 controls on docs. and api. hosts. OpenAPI 3.1
    (Urantia Papers API 1.0.0, 27 paths / 29 operations, MIT, keyless) saved verbatim to openapi/_original/urantia-papers-openapi.json
    and split/standardized into 13 per-tag APIs. MCP server at https://api.urantia.dev/mcp probed live (initialize + tools/list,
    no credentials, 19 tools) and recorded in mcp/urantia-papers-mcp.yml, replacing the earlier record of the docs-platform
    search MCP at urantia.dev/mcp (now a 308). Common pointers added as requested plus the MCP server card from the api-catalog.
    NOT applied - the Postman collection (https://www.postman.com/urantia-dev/urantia-papers) - the page is a client-rendered
    shell and no first-party page links it, so it could not be verified. The PR was not merged.

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